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Headend

&Earth Station

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SOUTHEAST: Norcross, GA 800-433-3765 EAST: Rockaway, NJ 800-458-4524 MIDWEST: Rolling Meadows, ILSOUTHWEST: Irving, TX 800-643-2288 WEST: Santa Ana, CA 800-227-2869 800-428-7596

1996 TELEWIRE SUPPLY

Headend & Earth StationContents Page

A1A1

Telewire Supply is dedicated to meeting the requirements of

our customers by providing Quality Products and Services on

a timely basis.

Quality Policy

About Headend & Earth Station

Telewire Supply stocks acquisition and processing equipment for

the cable television industry. As a full line supplier, Telewire Supply

carries a wide selection of quality products to meet the ever-chang-

ing technological demands posed by an evolving marketplace.

This section is designed as a buyer's guide for signal acquisition

and processing equipment. With the use of this section, develop-

ing equipment lists can be quickly and easily accomplished. It is

not intended to be a design or installation guide.

Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page

Satellite Orbits. . . . . . . . . . . . . . . . . . . . . . . . . . . A2-A3

Basic Satellite Systems Using LNBs. . . . . . . . . . . . A4

Basic Satellite Systems Using LNAs. . . . . . . . . . . . A5

Typical 12 Channel Headend Drawing . . . . . . . . . . A6

Frequency Allocation Chart . . . . . . . . . . . . . . . . A7-A8

Tech Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A9-A13

Off Air Antennas / Mounts . . . . . . . . . . . . . . . A14-A20

Off Air Preamps . . . . . . . . . . . . . . . . . . . . . . . A21-A23

Satellite Antennas. . . . . . . . . . . . . . . . . . . . . . A24-A25

LNBs & LNAs . . . . . . . . . . . . . . . . . . . . . . . . . A26-A31

Multibeam Feeds . . . . . . . . . . . . . . . . . . . . . . A32-A33

In this section

Satellite Accessories. . . . . . . . . . . . . . . . . . . . A34-A39

DigiCipher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A40

Satellite Receivers . . . . . . . . . . . . . . . . . . . . . A41-A46

Modulators . . . . . . . . . . . . . . . . . . . . . . . . . . . A47-A64

Scientific Atlanta Processors. . . . . . . . . . . . . . A65-A68

Scientific Atlanta Modules & Options. . . . . . . A69-A73

Processors . . . . . . . . . . . . . . . . . . . . . . . . . . . A74-A77

Demodulators . . . . . . . . . . . . . . . . . . . . . . . . . A78-A81

Combiners . . . . . . . . . . . . . . . . . . . . . . . . . . . A82-A83

Headend Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . A84

Outlet Strips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A85

Telewire Supply stocks products from cable television's leading

manufacturers, including Scientific-Atlanta, Olson Technology,

Blonder Tongue, Drake, California Amplifier, General Instruments

and many others. Contact your Telewire Supply representative for

more information concerning these products.

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Headend & Earth StationSatellite Orbits

C-Band Geosynchronous SatellitesSERVING NORTH AMERICA

A2

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Headend & Earth StationSatellite Orbits

A3

KuBand Geosynchronous SatellitesSERVING NORTH AMERICA

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Headend & Earth StationBasic Satellite System LNB

Typical Earth Station & Headend Using Low-Noise Block Downconverters(LNBs)

A4

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Headend & Earth StationBasic Satellite System LNA

Using Low-Noise Amplifiers (LNAs)

A5

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Headend & Earth StationTypical 12 Channel Headend

A6

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Headend & Earth StationFrequency Allocation Chart

A7

The following table is updated from the June 1986 "Tech Book" with +12.5 kHz and +25 kHz offsets for compliance

with Federal Communications Commission Part 76.612. All frequencies are in MHz.

EIA Channel Historical Video Standard Color Audio Video HRC Color Audio Video IRC Color AudioNumber designation carrier subcarrier carrier carrier subcarrier carrier carrier carrier carrier

T-7 7.00 10.5795 11.50

T-8 13.00 16.5795 17.50

T-9 19.00 22.5795 23.50

T-10 25.00 28.5795 29.50

T-11 31.00 34.5795 35.50

T-12 37.00 40.5795 41.50

T-13 43.00 46.5795 47.50

2 2 55.25 58.8295 59.75 54.0027 57.5822 58.5027 55.2625 58.8420 59.7625

3 3 61.25 64.8295 65.75 60.0030 63.5825 64.5030 61.2625 64.8420 65.7625

4 4 67.25 70.8295 71.75 66.0033 69.5828 70.5033 67.2625 70.8420 71.7625

1 A-8 72.0036 75.5831 76.5036 73.2625 76.8420 77.7625

5 5 77.25 80.8295 81.75 78.0039 81.5834 82.5039 79.2625 82.8420 83.7625

6 6 83.25 86.8295 87.75 84.0042 87.5837 88.5042 85.2625 88.8420 89.7625

95 A-5 91.25 94.8295 95.75 90.0045 93.5840 94.5045 91.2625 94.8420 95.7625

96 A-4 97.25 100.8295 101.75 96.0048 99.5843 100.5048 97.2625 100.8420 101.7625

97 A-3 103.25 106.8295 107.75 102.0051 105.5846 106.5051 103.2625 106.8420 107.7625

98 A-2 109.275 112.8545 113.775 108.0250 111.6045 112.5250 109.275 112.8545 113.775

99 A-1 115.275 118.8545 119.775 114.0250 117.6045 118.5250 115.275 118.8545 119.775

14 A 121.2625 124.8420 125.7625 120.0060 123.5855 124.5060 121.2625 124.8420 125.7625

15 B 127.2625 130.8420 131.7625 126.0063 129.5858 130.5063 127.2625 130.8420 131.7625

16 C 133.2625 136.8420 137.7625 132.0066 135.5861 136.5066 133.2625 136.8420 137.7625

17 D 139.25 142.8295 143.75 138.0069 141.5864 142.5069 139.2625 142.8420 143.7625

18 E 145.25 148.8295 149.75 144.0072 147.5867 148.5072 145.2625 148.8420 149.7625

19 F 151.25 154.8295 155.75 150.0075 153.5870 154.5075 151.2625 154.8420 155.7625

20 G 157.25 160.8295 161.75 156.0078 159.5873 160.5078 157.2625 160.8420 161.7825

21 H 163.25 166.8295 167.75 162.0081 165.5876 166.5081 163.2625 166.8420 167.7625

22 I 169.25 172.8295 173.75 168.0084 171.5879 172.5084 169.2625 172.8420 173.7625

7 7 175.25 178.8295 179.75 174.0087 177.5882 178.5087 175.2625 178.8420 179.76258 8 181.25 184.8295 185.75 180.0090 183.5885 184.5090 181.2625 184.8420 185.7625

9 9 187.25 190.8295 191.75 186.0093 189.5888 190.5093 187.2625 190.8420 191.7625

10 10 193.25 196.8295 197.75 192.0096 195.5891 196.5096 193.2625 196.8420 197.7625

11 11 199.25 202.8295 203.75 198.0099 201.5894 202.5099 199.2625 202.8420 203.7625

12 12 205.25 208.8295 209.75 204.0102 207.5897 208.5102 205.2625 208.8420 209.7625

13 13 211.25 214.8295 215.75 210.0105 213.5900 214.5105 211.2625 214.8420 215.7625

23 J 217.25 220.8295 221.75 216.0108 219.5903 220.5108 217.2625 220.8420 221.7625

24 K 223.25 226.8295 227.75 222.0111 225.5906 226.5111 223.2625 226.8420 227.7625

25 L 229.2625 232.8420 233.7625 228.0114 231.5909 232.5114 229.2625 232.8420 233.7625

26 M 235.2625 238.8420 239.7625 234.0117 237.5812 238.5117 235.2625 238.8420 239.7625

27 N 241.2625 244.8420 245.7625 240.0120 243.5915 244.5120 241.2625 244.8420 245.7625

28 O 247.2625 250.8420 251.7625 246.0123 249.5918 250.5123 247.2625 250.8420 251.7625

29 P 253.2625 256.8420 257.7625 252.0126 255.5921 256.5126 253.2625 256.8420 257.762530 Q 259.2625 262.8420 263.7625 259.0129 261.5924 262.5129 259.2625 262.8420 263.7625

31 R 265.2625 268.8420 269.7625 264.0132 267.5927 268.5132 265.2625 268.8420 269.7625

32 S 271.2625 274.8420 275.7625 270.0135 273.5930 274.5135 271.2625 274.8420 275.7625

33 T 277.2625 280.8420 281.7625 276.0138 279.5933 280.5138 277.2625 280.8420 281.7625

34 U 283.2625 286.8420 287.7625 282.0141 285.5936 286.5141 283.2625 286.8420 287.7625

35 V 289.2625 292.8420 293.7625 288.0144 291.5939 292.5144 289.2625 292.8420 293.7625

36 W 295.2625 298.8420 299.7625 294.0147 297.5942 298.5147 295.2625 298.8420 299.7625

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Headend & Earth StationFrequency Allocation Chart

A8

EIA Channel Historical Video Standard Color Audio Video HRC Color Audio Video IRC Color AudioNumber designation carrier subcarrier carrier carrier subcarrier carrier carrier carrier carrier

37 AA 301.2625 304.8420 305.7625 300.0150 303.5945 304.5150 301.2625 304.8420 305.762

38 BB 307.2625 310.8420 311.7625 306.0153 309.5948 310.5153 307.2625 310.8420 311.7625

39 CC 313.2615 316.8420 317.7625 312.0156 315.5951 316.5156 313.2625 316.8420 317.7625

40 DD 319.2625 322.8420 323.7625 318.0159 321.5954 322.5159 319.2625 322.8420 323.7625

41 EE 325.2625 328.8420 329.7625 324.0162 327.5957 328.5162 325.2625 328.8420 329.7625

42 FF 331.275 334.8545 335.775 330.0165 333.5960 334.5165 331.275 334.8545 335.775

43 GG 337.2625 340.8420 341.7625 336.0168 339.5983 340.5168 337.2625 340.8420 341.7625

44 HH 343.2625 346.8420 347.7625 342.0171 345.5966 346.5171 343.2625 346.8420 347.7625

45 II 349.2625 352.8420 353.7625 348.0174 351.5969 352.5174 349.2625 352.8420 353.7625

46 JJ 355.2625 358.8420 359.7625 354.0177 357.5972 358.5177 355.2625 358.8420 359.7625

47 KK 361.2625 364.8420 365.7625 360.0180 363.5975 364.5180 361.2625 364.8420 365.7625

48 LL 367.2625 370.8420 371.7625 366.0183 369.5978 370.5183 367.2625 370.8420 371.7625

49 MM 373.2625 376.8420 377.7625 372.0186 375.5981 376.5186 373.2625 376.8420 377.7625

50 NN 379.2625 382.8420 383.7625 378.0189 381.5984 382.5189 379.2625 382.8420 383.7625

51 OO 385.2626 388.8420 389.7625 384.0192 387.5987 388.5192 385.2625 388.8420 389.7625

52 PP 391.2625 394.8220 395.7625 390.0195 393.5990 394.5195 391.2625 394.8420 395.7625

53 QQ 397.2625 400.8420 401.7625 396.0198 399.5993 400.5198 397.2625 400.8420 401.7825

54 RR 403.25 406.8295 407.75 402.0201 405.5996 406.5201 403.2625 406.8420 407.7625

55 SS 409.25 412.8295 413.75 408.0204 411.5999 412.5204 409.2625 412.8420 413.7625

56 TT 415.25 418.8295 419.75 414.0207 417.6002 418.5207 415.2625 418.8420 419.7625

57 UU 421.25 424.8295 425.75 420.0210 423.6005 424.5210 421.2625 424.8420 425.7625

58 VV 427.25 430.8295 431.75 426.0213 429.6008 430.5213 427.2625 430.8420 431.7625

59 WW 433.25 436.8295 437.75 423.0216 435.6011 436.5216 433.2625 436.8420 437.7625

60 XX 439.25 442.8295 443.75 438.0219 441.6014 442.5219 439.2625 442.8420 443.7625

61 YY 445.25 448.8295 449.75 444.0222 447.6017 448.5222 445.2625 448.8420 449.7625

62 ZZ 451.25 454.8295 455.75 450.0225 453.6020 454.5225 451.2625 454.8420 455.7625

63 AAA 457.25 460.8295 461.75 456.0228 459.6023 460.5228 457.2625 460.8420 461.7625

64 BBB 463.25 466.8295 467.75 462.0231 465.6026 466.5231 463.2625 466.8420 467.7625

65 CCC 469.25 472.8295 473.75 468.0234 471.6029 472.5234 469.2625 472.8420 473.7625

66 DDD 475.25 478.8295 479.75 474.0237 477.6032 478.5237 475.2625 478.8420 479.7625

67 EEE 481.25 484.8295 485.75 480.0240 483.6035 484.5240 481.2625 484.8420 485.7625

68 FFF 487.25 490.8295 491.75 486.0243 489.6038 490.5243 487.2625 490.8420 491.7625

69 GGG 493.25 496.8295 497.75 492.0246 495.6041 496.5246 493.2625 496.8420 497.7625

70 HHH 499.25 502.8295 503.75 498.0249 501.6044 502.5249 499.2625 502.8420 503.7625

71 III 505.25 508.8295 509.75 504.0252 507.6047 508.5252 505.2625 508.8420 509.7625

72 JJJ 511.25 514.8295 515.75 510.0255 513.6050 514.5255 511.2625 514.8420 515.7625

73 KKK 517.25 520.8295 521.75 516.0258 519.6053 520.5258 517.2625 520.8420 521.7625

74 LLL 523.25 526.8295 527.75 522.0261 525.6056 526.5261 523.2625 526.8420 527.7625

75 MMM 529.25 532.8295 533.75 528.0264 531.6059 532.5264 529.2625 532.8420 533.7625

76 NNN 535.25 538.8295 539.75 534.0267 537.6062 538.5267 535.2625 538.8420 539.7625

77 OOO 541.25 544.8295 545.75 540.0270 543.6065 544.5270 541.2625 544.8420 545.7625

78 PPP 547.25 550.8295 551.75 546.0273 549.6068 550.5273 547.2825 550.8420 551.7625

79 QQQ 553.25 556.8295 557.75 552.0276 555.6071 556.5276 553.2625 556.8420 557.7625

80 RRR 559.25 562.8295 563.75 558.0279 561.6074 562.5279 559.2625 562.8420 563.762581 SSS 565.25 568.8295 569.75 564.0282 567.6077 568.5282 565.2625 568.8420 569.7625

82 TTT 571.25 574.8295 575.75 570.0285 573.6080 574.5285 571.2625 574.8420 575.7625

83 UUU 577.25 580.8295 581.75 576.0288 579.6083 580.5288 577.2625 580.8420 581.7625

84 VVV 583.25 586.8295 587.75 582.0291 585.6086 586.5291 583.2625 586.8420 587.7625

85 WWW 589.25 592.8295 593.75 588.0294 591.6089 592.5294 589.2625 592.8420 593.7625

86 XXX 595.25 598.8295 599.75 594.0297 597.6092 598.5297 595.2625 598.8420 599.7625

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Headend & Earth StationTech Tips

A9

Signal to Noise Ratio

Do you know what the Signal to Noise (S/N) Ratio of each channel in your planned headend will be?Are preamps required? Is the proper low noise amplifier being used? Where are low noise devices required?

The following simplified method of S/N Ratio calculations will enable you to properly determine the S/N Ratio of eachchannel in your system from the antenna right down to the TV.

The S/N Ratio of a TV signal is controlled by a combination of three factors: (1) thermal noise, (2) TV signal level and (3)the amount of noise added by an amplifier or TV set.

(1) Thermal Noise

To understand S/N Ratio, an understanding of thermal noise and where it comes from would be helpful. Any sourcethat looks resistive, over the band in use, generates a thermal noise signal. If a sensitive, high impedance

voltmeter (which generates no noise itself) were connected across a 75 Ohm resistive source, it would measure 2.2microvolts which would be calculated by using the formula: en = 4 R Bk

where en = RMS noise voltage

R = resistance in Ohms

B = bandwidth of the voltmeter in MHz (to simulate the bandwidth over which a TV sees noise,the TV I.F. bandwidth of 4 MHz is used).

K = constant approx. equal to 40x1016 at room temperature (68F).

Assuming the 4 MHz bandwidth, the open circuited noise voltage for a 75 Ohm resistor is:

en = - 4 X 75 X 4 X 40 X 1016

en = - 4.87 X 1012

en = 2.2 microvolts RMS

If this source were then connected to a 75 Ohm load (which had no noise in itself) it would deliver half the voltage to theload. Therefore, the noise input in 75 Ohms would be 1.1 microvolts RMS or 59 dBmV. This is the basic noise level,thermal noise or the minimum noise that will exist in any part of a 75 Ohm system.

To avoid snowy pictures, the signal, at any point in a system must be strong enough to override the noise. This relation-ship is expressed by the term Signal to Noise Ratio, which is the difference between the signal level and the noise level,both of which are measured at the same point in the system.

(2) TV Signal Level

This is the amount of signal which is received at the input of any amplifying device and is expressed in dBmV.

(3) Noise Added By an Amplifying DeviceAny amplifier such as a TV set, preamplifier or distribution amplifier always adds more noise than the thermal noise. Theamount of noise an amplifying device adds above thermal noise is specified as NOISE FIGURE (N.F.) of that device.When a manufacturer specifies the N.F. of an amplifier is 8 dB, it means the amplifier adds 8 dB more noise to the ther-mal noise present at its input.

The Noise Figure of an amplifier or system is the difference between the measured output noise level (in dBmV) with aterminated input and the thermal noise (59 dBmV) plus the gain (in dB) of the amplifier. Consider, for example, an ampli-fier with a known gain of 43 dB. The measured noise output, with the input terminated, is 9 dBmV. The noise figure isthen found to be: 59 dBmV minus 9 dBmV plus 43 dB = 7 dB N.F.

Using the chart in Fig. 1 and the example drawing in Fig. 2, we can simplify S/N Ratio calculations in a step by stepprocedure.

Step 1 Calculate the input signal levels to each amplifying device, as shown in the drawing.

Step 2 Add the noise figure of the preamplifier to 59 dBmV thermal noise.59 dBmV thermal noise

+ 8 dB N.F.

51 dBmV noise level

Step 2A Find the ratio of the signal level to the noise level.

51 dBmV noise level

+ 0 dBmV input signal level

51 dB S/N Ratio

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A10

Signal to Noise Ratio

Thus, 51 dB is the S/N Ratio at the output of the preamplifier. Note that the gain of the preamp was not used in the calculations,

as the gain amplifies the noise as well as the signal and does not change the ratio between the signal and the noise. The 18 dB

gain of the preamp would amplify the noise to 33 dBmV and the signal to +18 dBmV and the ratio would remain at 51 dB S/N

Ratio.

Step 2B Write the Signal to Noise Ratio next to the output of the preamp.

Step 3 Calculate the Signal to Noise Ratio at the next active device, the converter.

59 dBmV thermal noise

+11 dB noise figure

48 dBmV noise level

+10 dBmV input signal level

58 dB S/N Ratio

Step 3A Write the Signal to Noise Ratio next to the output of the converter.

Step 4 Calculate the Signal to Noise Ratio at the last active device, the amplifier:

59 dBmV thermal noise

+13 dB noise figure

46 dBmV noise level

+22 dBmV input signal level

68 dB S/N Ratio

Step 4A Write the Signal to Noise Ratio next to the output of the amplifier.

Step 5 Subtract the Signal to Noise Ratio of Step #2A from the Signal to Noise Ratio of Step #3:

58 dB Step #3 S/N Ratio

51 dB Step #2A S/N Ratio

7 dB Difference

Step 5A Refer to 7.0 dB difference on the chart in Fig. 1 and subtract 0.79 dB from the worst S/N Ratio (smallest number)

51 dB 0.79 dB = 50.21 dB S/N Ratio which is the S/N Ratio of the first two devices combined.

Step 6 Subtract the Signal to Noise Ratio of Step #5A from the signal to Noise Ratio of Step #4:

68.0 dB Step #4

50.21 dB Step #5A

17.79 dB Difference

Step 6A Refer to 17.8 dB difference on the chart in Fig. 1 (page A-10) and subtract 0.07 dB from 50.21 dB = 50.14 dB S/NRatio which is the S/N Ratio of the final output.

Steps 5 and 6 vividly show how little affect succeeding amplifiers have on the S/N Ratio established by the preamplifier as longas the signal is not allowed to drop to a low level.

Calculating the S/N Ratio of the Distribution Plant:

Calculating the S/N Ratio of amplifiers that have the same noise figures and have the same input signal levels is relatively sim-ple. The rule is: When identical amplifiers, connected by identical cable lengths whose individual losses equal one amplifiers gainare cascaded, the system noise figure increases 3 dB each time the number of cascaded amplifiers is doubled.

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Figure 1Signal to Noise Ratio

A11

dB

Difference 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

0.0 3.01 2.96 2.91 2.86 2.82 2.77 2.72 2.67 2.63 2.58

1.0 2.54 2.50 2.45 2.41 2.37 2.33 2.28 2.24 2.20 2.16

2.0 2.13 2.09 2.05 2.01 1.97 1.94 1.90 1.87 1.83 1.80

3.0 1.76 1.73 1.70 1.67 1.64 1.60 1.57 1.54 1.51 1.48

4.0 1.46 1.43 1.40 1.37 1.35 1.32 1.29 1.27 1.24 1.22

5.0 1.19 1.17 1.15 1.12 1.10 1.08 1.06 1.04 1.01 0.99

6.0 0.97 0.95 0.93 0.91 0.90 0.88 0.86 0.84 0.82 0.81

7.0 0.79 0.77 0.76 0.74 0.72 0.71 0.70 0.68 0.67 0.65

8.0 0.64 0.62 0.61 0.60 0.59 0.57 0.56 0.55 0.54 0.53

9.0 0.51 0.50 0.49 0.48 0.47 0.46 0.45 0.44 0.43 0.42

10.0 0.41 0.40 0.39 0.39 0.38 0.37 0.36 0.35 0.35 0.34

11.0 0.33 0.32 0.31 0.31 0.30 0.30 0.29 0.28 0.28 0.27

12.0 0.26 0.26 0.25 0.25 0.24 0.24 0.23 0.23 0.22 0.22

13.0 0.21 0.21 0.20 0.20 0.19 0.19 0.19 0.18 0.18 0.17

14.0 0.17 0.16 0.16 0.16 0.15 0.15 0.15 0.15 0.14 0.1415.0 0.13 0.13 0.13 0.13 0.12 0.12 0.12 0.12 0.11 0.11

16.0 0.10 0.10 0.10 0.10 0.10 0.09 0.09 0.09 0.09 0.09

17.0 0.08 0.08 0.08 0.08 0.08 0.08 0.07 0.07 0.07 0.07

18.0 0.07 0.07 0.07 0.06 0.06 0.06 0.06 0.06 0.06 0.06

19.0 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.04

20.0 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.03

Figure 2

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Headend & Earth StationOff-Air Antennas

Off-Air AntennasThe purpose of an antenna is to pick up a signal(s) which a

transmitter(s) radiates, by intercepting the emitted RF

waves. There are many factors that determine the quality of

reception at a given receiving site.

Performance Factors

Distance to transmitter

Height of transmitting antenna

Transmitter power

Transmitter frequency (TV channel)

Type of receiving antenna

Height of receiving antenna

Terrain between transmitter and receiving antenna(e.g. large buildings) etc.

Antenna Characteristics

Gain

This characteristic indicates the ability of an antenna to pick up

signals as compared to a reference antenna (usually a

resonating dipole).

Bandwidth

This indicates over how many channels the antenna works

properly. In principle, there are two types of antennas:

broadband and single-channel antennas.

Impedance

Home type antennas are usually designed for 300-Ohm twinlead; many commercial antennas are for 75 Ohm coaxial cable.

Pattern

Antennas can receive TV signals from various directions;

however, the reception is better from certain directions than

from others. Apolar pattern will show the antenna directivity.

Physical ConstructionAntennas must withstand all kinds of weather conditions

including high winds, severe icing, etc. One has to choose an

appropriate type for the particular area.

Antenna location and orientation are most important in getting

good reception. People often feel that antennas should be

mounted where convenient, and once installed should be left

in that place. If you are in a very good reception area, you may

get by with this procedure. Keep in mind that the signal you

will get at any set connected to a distribution system will never

be better than the signal received at the antenna. Carefully

select the spot where the signals are strongest and yield less

snow for a better signal-to-noise ratio. Orienting the antenna

properly may help in eliminating ghosts. Check the signal you

receive from the antenna with a good color TV set and

measure the strength of the signal with a field strength meter.

Both picture and sound should be measured.

Broadband or Single-Channel Antennas?

If all signals come from the same direction, and if, at the same

time, no ghost problems are encountered, a broadband

antenna may be used. (It is also desirable that all signals

received be of approximately the same strength.) However, in

large distribution systems, it is advisable to use individual

antennas. These individual antennas can be oriented and

placed for best reception of the particular channel. In addition,

if one antenna fails, only one channel is affected.

A12

Antenna specifications often show the

front-to-back ratio which is A/B. The beam

width is defined as shown in the drawing.

Multi-element YAGI antennas have a nar-

row beam width.

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A13

Off-Air Antennas

General

If the signals from Aand B were of sufficient level that the head-

end signal-processing equipment could adequately produce a

high quality television signal for distribution, no amplification of

the received signal would be necessary. It is recommended

that a preamplifier not be used just to boost the signal if ausable, quality signal can be obtained without amplification.

However, if the signal level were marginal, then a tower-mount-

ed, single-channel preamplifier, such as that shown below con-

nected to Antenna 2, should be included to compensate for the

down lead cable loss. This preamplifier will selectively amplify

only one channel, while effectively rejecting others.

Another situation might require preamplification of both

Signals Aand B. In this case, two antennas would be required

and two preamplifiers, one for each signal. Two down lead

cables feeding two signal processors in the headend would

also be required.

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VHF Yagi Antennas - Heavy Duty Signal ChannelCUSHCRAFT

A14

Y-Series Antennas

Proline Y series heavy duty television antennas maxi-

mize signal quality with high forward gain, excellent side

and back rejection and optimum bandwidth. A full range

of 5 and 10 element models is offered. Easy assembly

and installation.

Cantilever Mount Kits

Kits offer mounting flexibility. With the "bolt-on kits, any

of the Y5 element low band and Y5 or Y10 element high

band antennas can be cantilever mounted on a support

structure. They feature torque and brace supports for

very high strength and accurate alignment.

Specifications:

Boom 6063-T832 aluminum tubing,1-1/4" sq.; .058 wall thick-ness

Elements 6063-T832, 1/2" dia. seamless aluminum tubing:049wall thickness

Mast mount 4" x 6" aluminum, fits up to 2" diameter supportmast

Output connector F type; 75 Ohm

Ordering Information (A) 5 Elements

Wind Area

Order Mfg. Boom Element No 1/2"No. No. Ch. Length Width Weight Ice Ice

CSH 042175 Y-25 2 127" 108" 9 lbs. 1.20' 2.14'

CSH 042176 Y-35 3 117" 97" 9 lbs. 1.05' 1.93'

CSH 042177 Y-45 4 107" 88" 8 lbs. 1.19' 1.79'

CSH 042178 Y-55 5 95" 77" 8 lbs. .91' 1.62'

CSH 042179 Y-65 6 89" 76" 7 lbs. .81' 1.44'

CSH 042181 Y-75 7 61" 33" 6 lbs. .58' .99'

CSH 042182 Y-85 8 60" 32" 6 lbs. .57' .97'

CSH 042183 Y-95 9 58" 32" 6 lbs. .55' .95'

CSH 042184 Y-105 10 56" 30" 6 lbs. .53' .92'

CSH 042185 Y-115 11 55" 30" 5 lbs. .52' .90'

CSH 042186 Y-125 12 54" 29" 5 lbs. .52' .89'

CSH 042187 Y-135 13 53" 28" 5 lbs. .50' .85'

CSH 042180 Y-FM5 FM 104" 59" 8 lbs. .88' 1.58'

Chart A - Electrical Specifications:

Gain* . . . . . . . . . . 9.5 dB; F/B ratio: -23

Beamwidth . . . . . (-3dB) horizontal: 63

Bandwidth . . . . . . 6 MHz TV channels, 23 MHz FM

All models listed in chart A may be cantilever mounted.For channels 2-6 and FM, order Cantilever Mount No.

Y-CMK (Order No. CSH 043932). For channels 7-13,

order No. Y-CMK1 (Order No. CSH 043931).

Chart B - Electrical Specifications:

Gain* . . . . . . . . . .12 dB ; F/B ratio: -26

Beamwidth . . . . . (-3dB) horizontal: 48

Bandwidth . . . . . 6MHz TV channels.

Channels 7-13 models may be cantilever mounted, order No.

Y-CMK (Order No. CSH 043932). Channels 2-6 models have

2-piece booms and diagonal support braces.

*Antenna gain is measured over reference dipole. For isotropic gain, add

2.18 dB.

Wind AreaOrder Mfg. BoomElement No 1/2"No. No. Ch. Length Width Weight Ice Ice

CSH 042188 Y-210 2 273" 108" 21 lbs. 3.27' 6.27'

CSH 042189 Y-310 3 246" 97" 20 lbs. 3.06' 5.88'

CSH 042190 Y-410 4 230" 88" 19 lbs. 2.95' 5.63'

CSH 042191 Y-510 5 210" 77" 18 lbs. 2.72' 5.27'

CSH 042192 Y-610 6 183" 76" 17 lbs. 2.51' 4.85'

CSH 042194 Y-710 7 125" 33" 10 lbs. 1.21' 2.04'

CSH 042195 Y-810 8 121" 32" 9 lbs. 1.18' 1.99'

CSH 042196 Y-910 9 118" 32" 8 lbs. 1.15' 1.93'

CSH 042197 Y-1010 10 113" 30" 8 lbs. 1.10' 1.83'

CSH 042198 Y-1110 11 111" 30" 8 lbs. 1.09' 1.82'

CSH 042199 Y-1210 12 109" 29" 7 lbs. 1.07' 1.79'

CSH 042200 Y-1310 13 104" 28" 7 lbs. 1.03' 1.72'

Ordering Information (B) 10 Elements

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Headend & Earth StationAntenna Stacking Accessories

Stacking KitsCUSHCRAFT

A15

Description

A quick and easy way to increase performance. The Cushcraft

dual stacking kits are designed to give a perfect match. They

include interconnect coaxial cable with connectors installed,

three way junction and F type connector.

The illustration shows a typical two antenna array using the

stacking kit. For maximum performance stack four antennas.

The kits which are very easy to use, allow either quad or verti-

cal stacking of the antennas. They include interconnect coaxi-

al cable with connectors installed, three way junctions and ter-

mination for F type fitting.Dual and quad stacking frame gusset of 1/4" x 6" x 7" flat alu-

minum plate with machined aluminum V blocks and 3/8"-16" x

2-1/2" U bolts. Adjustable to take any tubing from 1-1/2 to 2-1/4

inch O.D. This aluminum gusset can be used for connecting ver-

tical and horizontal tubing supports and center support mast.

Stacking frame may be used with Cushcraft Y, YH and YHC type

antennas. Stacking frame may be used with Blonder-Tongue

model 4748, 4758, 4749, 4759, 4688 and 4867 series antennas.

Ordering Information

Order Mfg.No. No. Description

CSH 108199 YDSF5 Dual stacking kit for 5 element antennas

CSH 108195 YDSF10 Dual stacking kit for10 element antennas

CSH 108198 YQSF5 Quad vertical stacking kit for 5 elementantennas

CSH 108197 YQSF10 Quad vertical stacking kit for 10 elementantennas

CSH 020578 YSB Model YSB Quad stacking Frame

Two Antenna Vertical Stack

A = 5 element .7

10 element 1.0

Four Antenna Vertical Stack

A, B, C =.7 5 element

1.0 10 element

On all stacking kits you must specify channel when

ordering.

Model YSB Quad Stacking Frame

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Headend & Earth StationAntenna Mounts

A16

Model Y-CMK & Y-CMK1CUSHCRAFT Description

For Y antennas, a specially designed cantilever mounting kit

which can be used with any of the low channel five element or

high channel five and ten element antennas. Order the regular

Y antenna and Y-CMK or Y-CMK1 cantilever mount kit.

YHC low channel five element and high channel five or ten ele-ment antennas include cantilever mounts.They have the option

of center mounting.

All Cushcraft cantilever mounts include support brace and

torque arm with mounting hardware. They may be installed to

separate tower legs for maximum strength.

See antenna specifications for information on which

support is used on each antenna.


Order Mfg.No. No.

CSH 043932 Y-CMK

CSH 043931 Y-CMK1

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Headend & Earth StationAntennas & Antenna Mounts

A17

Cantilever Antenna MountBLONDER-TONGUE


Order Mfg.No. No.

B-T 108196 5760

Description

The model 5760 cantilever mount consists of a heavy duty

square aluminum boom and all clamping hardware requiredfor rear-end mounting of Blonder-Tongue antennas model #

4866, 4867, 4871, 4872 and 4874.

Cantilever end-mounting is common since the antennas areusually attached to tower legs rather than to masts. This maxi-

mizes signal reception qualities of the antenna by keeping ele-

ments clear of support structures. It also eliminates the needfor outriggers and masts.

Antennas can be mounted horizontally or vertically on atower leg or mast (1-1/4" to 2-1/2" O.D.) by rotating the

mounting plate 90.The cantilever is designed to be mount-

ed parallel to and below the antenna boom. The boom is 1-1/4" square aluminum tubing (6063-T6), 64-3/8 long.

Mounting brackets are #14 gauge (0.074") stainless steel.Shipping weight is 8 lbs., 5 oz. The mount has a wind resis-

tance of 58.2 lbs.

(Thrust in lbs. transferred to supporting structure based on 100mph sustained wind on antenna.)

Description

Computer design techniques give Cushcraft UHF television

antennas excellent gain vs. bandwidth. This allows coverage of

the entire UHF spectrum with only six models. These new

antennas easily outperform older individual cut channel Yagis.

They have high forward gain and relatively narrow beamwidth

to minimize multi-path interference. The heavy wall booms are

cantilever mounted. The elements are 1/4" solid aluminum rod,

secured to the boom with machined blocks and stainless steel

fasteners.

*Antenna gain is measured over reference dipole.For isotropic gain, add 2.18 dB.

UHF High PerformanceTelevision AntennasCUSHCRAFT


Order Mfg.No. No. Ch. Length Width Weight

CSH 042204 YUHF-A 14 - 20 51.00" 12.00" 2.25 lbs.

CSH 042205 YUHF-B 21 - 29 50.00" 10.90" 2.20 lbs.

CSH 042206 YUHF-C 30 - 41 45.50" 9.80" 2.15 lbs.CSH 042207 YUHF-D 42 - 53 41.80" 8.80" 2.10 lbs.

CSH 042208 YUHF-E 54 - 67 38.50" 8.00" 2.05 lbs.

CSH 042209 YUHF-F 68 - 83 35.80" 7.00" 2.00 lbs.

Specifications

Gain*: 12 dB Beamwidth: (-3 dB) horizontal 4

F/B ratio: 26 dB Impedance:70 Ohms unbalanced

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VHF Broadband AntennaBLONDER-TONGUE Description

The BTY-LP-BB is a professional quality VHF broadband

antenna. It is a 12 element broadband multi-channel design for

TV channels 2 to 13 with a 75 Ohm output for coaxial cable.

This antenna has high gain, flat response, good VSWR, high

front-to-back ratio, narrow beamwidth and low side lobes. Theantenna is a log periodic with a shortened dual boom, permit-

ting less expensive shipment by UPS, easier handling and

reduced shelf space.

The heavy duty center mount is positioned at the antennas

center of gravity for balanced weight distribution to the mast.

The antenna can be rear-mounted by using B-T model # 5760

cantilever mount. This permits attachment to vertical or hori-

zontal tower members.

The front of the the BTY-LP-BB has been fabricated to permit

mounting of a BTY-UHF-BB antenna. Joining the two will cre-

ate an all-channel antenna.

Description

The BTY-UHF-BB is a professional quality UHF broadband

antenna. It is an 11 element broadband multi-channel design

for TV channels 14 to 83 with a 75 Ohm output for coaxial

cable.

This antenna is a dual boom log periodic type with high gain,

flat response, good VSWR, high front-to-back ratio, narrow

beamwidth and low side lobes.

The mounting assembly, positioned at the rear, allows the

antenna to be mounted directly on vertical tower members.

This feature maximizes signal reception qualities of the anten-

na by keeping elements clear of support structures. It also elim-

inates the need for outriggers and masts.

The antenna is supplied with hardware for mounting either of

two ways: attaching to a mast or tower, or attaching to the front

of a BTY-LP-BB VHF broadband antenna. The two antenna

combination produces a single broadband U/V antenna version

for channels 2 through 83. A male type F connector is

required to attach to the female output connector.

UHF Broadband AntennaBLONDER-TONGUE


Order Mfg.No. No.

B-T 108075 4874

A18


Order Mfg.No. No.

B-T 108073 4875

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Parabolic UHF AntennaCOMETIC Description

The D-1338-BB parabolic UHF antenna was designed to mini-

mize cost with little sacrifice in performance.

The four-foot diameter reflector is of the grid-type which results

in very low windloading compared to solid reflector antennas.

The grid is constructed of 1/8" steel rod, spaced 1" and weldedto 1/4" steel crossmembers and outer ring. The reflector and 75

Ohm driver are coated with anti-oxide primer and vinyl alkyd

paint.

The loop driver provides the installer with greater flexibility in

tailoring the installation to suit his own particular requirements.

The D-1338-BB antenna can be used for reception of any com-

bination of UHF stations with excellent performance and high

reliability.

All necessary hardware is provided for mounting to a 1-1/2" to

4-1/2" diameter mast or tower leg.

Description

For applications requiring a VHF broadband

or an all-channel VHF/UHF rugged antenna,this all-channel unit is built to the same high

standards as the cut-channel antennas. Log

periodic biconical design gives performance

exceeding the physical size of the antenna.

The unique design gives flat response which

is essential to the reception of quality color.

Extra heavy-duty construction; seamless

chrome-aluminum tubing; ends sealed

against entry of moisture; protected with a

special anti-corrosion finish for all weather-

resistant installations

Log Periodic VHF-UHF BiconicalCOMETIC

A19


Order Mfg.No. No.

CMT 603111 D-1338-BB


Order Mfg.No. No.

CMT 600408 J-283X

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Headend & Earth StationAntennas

FM Omni AntennaBLONDER-TONGUE Description

The BTY-2-FM is a twin dipole FM antenna. Two 1/2 wave

dipole elements mounted 90to one another on the antenna

mast give this antenna an omni-directional reception pattern

The antenna is supplied complete with two dipoles, con-

nector cable, an 18 boom and universal mounting bracket.It is designed for mounting to either vertical or horizontal

tower members and will attach to masts up to 2-1/2 inches

in diameter.

Description

Transformers signal impedance from 75 Ohms to 300 Ohms.

Heavy duty sealed molded case. Resistant to moisture and

sun. Weather boot included.

Bandwidth 5-890 MHz

Insertion Loss VHF: 2.0 dB

UHF: 5.0 dB

Match (VSWR) 1.3:1

Input impedance 300 Ohm

Output impedance 75 Ohm

Matching Transformer

A20


Order Mfg.No. No.

B-T 600281 4878


Order Mfg.No. No.

JST 202198 OB-1

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Headend & Earth StationPreamplifiers

A21

Description

The CMA-Uc is a very low noise broadband UHF-TV pream-

plifier designed for antenna mast mounting. It features a low

noise figure (3.0 to 3.5 dB) as well as excellent gain with high

input capability. Heavy-duty die-cast aluminum construction.

Built-in output test jack permits uninterrupted service. This

preamplifier can be used for all UHF channels 14 through 83,and features excellent gain which is relatively uniform across

the entire UHF-TV band and high output capability. The cir-

cuitry is housed in a rugged, die-cast aluminum case designed

to be mounted on a TV antenna mast or on the side of a tower

structure with the U-bolt and bracket supplied. CMA-Uc pream-

plifiers are equipped with 75 Ohm F type input and output con-

nectors.

Specifications

Electrical

Bandwidth ch. 14 - 83

Noise figure 3 dB (3.5 dB @ ch. 83)

Gain 20 dBInput return loss 4.0 dB

Output return loss3.0 dB

Minimum recommended inputfor TASO Grade 1(excellent) picture -46 dB S/N: -9.0 dBmV

Input capability (3 ch. Xmod @ -46 dB): 26 dBmV

Power requirement -21 VDC regulated @ 28.6 mA

Mechanical

Operating ambient temperature range 1-40F to +140F

Dimensions 13" H x 5" W x 3-7/8" D

Shipping weight 1 lb. 5 oz.

Power supplies for above preamplifier - See page A-23

Description

These low-noise preamplifiers have been developed to meet the

needs of system installers. They combine exceptionally high sig-

nal-handling capability and gain with good input match to make

them ideal for use with wideband TV antennas. Not recommend-

ed for FM band. A75 Ohm input connector and a 75 Ohm, F type

output connector permit the use of coaxial down lead without the

necessity of a separate balun. A rugged metal case, wide operat-ing temperature range, and mast-mounting design combine to

make it ideal for tower installations. A 20 dB backmatched out-

monitoring jack is included for monitoring the units performance

without interrupting service. Mast-mounting hardware is supplied.

Specifications

Electrical

Frequency range BB: 54-216 (ch. 2-13)LB: 54-88(ch. 2-6)

HB: 174-216 (Ch. 7-13)

Input capability(typical) BB: +25 dBmV (each of 7 ch.)LB: +28 dBmv (each of 3 ch.)HB: +26 dBmV (each of 4 ch.)

Gain BB: 26 dB typical, 23 dB min.LB: 26 dB typical, 24 dB min.HB: 26 dB typical, 24 dB min.

Input match BB: 11 dB RL typical,8 dB RL min.LB: 10 dB RL typical,8 dB RLmin.

HB: 12 dB RL typical,10 dB RLmin.

Output match BB: 8 dB RL typical, 5 dB RL min.LB: 11 dB RL typical, 8 dB RL min.HB: 9 dB RL typical, 6 dB RL min.

Noise figure (all models) 5.0 dB typical, 6.5 dB max.

Power requirement -21 VDC, 50 mA diplexed on down lead.

Mechanical

Dimensions 3-1/2" H x 5-1/4" W x 5-1/8" D

Weight 1-1/2 lbs.Power supplies for above preamplifier - See page A-24



B-T 004858 1264 UHF Broad Band Preamplifier



B-T 042035 4448-BB Broad Band Preamplifier

B-T 022020 4448-HB High Band Preamplifier

B-T 022019 4448-LB Low Band Preamplifier

UHF Broadband Preamplifier Low Band, High Band, BroadbandCMA-Uc (1264) VHF Preamplifiers CMA-bb SeriesBLONDER-TONGUE (4448) BLONDER-TONGUE

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Headend & Earth StationPreamplifiers

A22

Features

Very low noise figure

Adapter supplied for aluminum cable connector

Special trap settings to prevent strong, local channel interference

Built-in output test-jack permits uninterrupted service

Description

The SCMA-Ub is a single-channel very low noise, VHF and

FM preamplifier designed for mounting on an antenna mast

or tower structure. The noise figure of each unit is optimized

for a single UHF channel (ch. 14-83). This preamplifier fea-

tures excellent gain and selectivity. It therefore provides

excellent immunity to overloads caused by other strong

channels in the UHF band. A factory tuned internal trap fre-

quency may also be specified to prevent overload or inter-

modulation problems from strong, local channels without

significant noise fixture degradation.

Circuitry is mounted in a rugged, die-cast aluminum case. The

SCMA-Ub has 75 Ohm F type input and output connections.

An adapter is supplied to permit the use of an aluminum cableconnector at the output.

Electrical Specifications (typical)

Bandwidth any 6 MHz channel (14-83)

Noise figure ch. 14-69: 2.5 dB ch. 70-83: 3.5 dB

Gain ch. 14-34: 25 dB ch. 35-69: 24 dB ch. 70-83: 22 dB

Input return loss ch. 14-34: 4.0 dB ch. 35-69: 6.0 dB ch. 70-83: 3.0 dB

Output return loss ch. 14-34: 8.0 dB ch. 35-69: 6.0 dB ch. 70-83: 3.0 dB

Trap depth 8.0 dB

Tuning range capacity270 to 806 MHz. This may be preset no closer to desiredUHFstation than -2 channels or 3 channels for no degradation of performance.

Minimum recommended (excellent) picture (-46 dB S/N)

input for TASO Grade 1 ch. 14-69: -10.7 dBmV (290 uV)ch. 70-83: -10.0 dBmV (316 uV)

Input capability 35 dBmV (920 KHz beat @ -55 dB,sound @ -15 cB, color @ -25 dB)

Power requirement -21 VDC regulated @ 28.6 mA

Operating ambient temperature range -40F to +140F


Mfg. No. - 4426

Call for Order numbers and specific channel number.

Power supplies for above preamplifier - See page A-23

Features

Very low noise figure

Excellent gain, flat response

Good adjacent channel overload rejection

Description

The Blonder-Tongue CMA-b is a low noise, single-channel

VHF preamplifier. The unit accepts a wide range of input signal

levels, and has exceptional immunity to overloads caused by

strong adjacent channel signals. A full six MHz bandpass

insures excellent color operation. Each unit has 75-Ohm F-type

connectors on the input, output, and test jack. The -20 dB out-

put monitor jack (backmatched) permits the units performance

to be checked without interrupting service. A rugged, cast alu-

minum case and fiber glass epoxy printed circuit board con-

struction assure long life and reliable operation. Mast-mounting

hardware and cable connectors supplied.

Specifications

Noise figure ch. 2-6: less than 4.0 dBch. 7-13: 3.5 dB typicalFM: 4.0 dB typical

Typical gain ch. 2-6: 30 dBch. 7-13: 26 dB

FM: 24 dB

Minimum input required for TASO "excellent" picture -10 dBmV (300v)

Power requirement -21 VDC at 40 mA.

Connectors input: 75 Foutput: 75 F


Order Mfg.No. No.

B-T 004846 4706-2

B-T 004847 4706-3

B-T 004848 4706-4

B-T 004849 4706-5

B-T 004850 4706-6

B-T 004851 4706-7

B-T 004852 4706-8

Order Mfg.No. No.

B-T 004853 4706-9

B-T 004854 4706-10

B-T 004855 4706-11

B-T 004856 4706-12

B-T 004857 4706-13

B-T 004861 4706-FM

UHF Single Channel Preamplifier Single Channel PreamplifiersSCMA-Ub Series (4426) Model CMA-b VHF & FM (4708)BLONDER-TONGUE BLONDER-TONGUE

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Headend & Earth StationPower Supplies

A23

Description

Delivers a regulated and surge-protected -21 volts DC at 40

mA. Designed primarily for powering a single SCMA-U mast

mounted preamplifier. AC outlet provided for looping AC

power from one power supply to another. UHF/VHF feed thru

for duplexing power on coaxial cable.

Specifications

Output voltage -21 VDC

Maximum load before deregulation 40 mA at 105 VAC input48 mA at 117 VAC input56 mA at 130 VAC input

Ripple approx. 30 mV peak-to-peak at room temperature

Thru-line match (typical) UHF: 22 dB return lossVHF: 26 dB return loss

Thru-line loss (typical) UHF: 0.5 dBVHF: 0.3 dB

Power requirement 117 VAC, 60 Hz, 0.07 A

Dimensions 2-3/4 H x 3-1/4" W x 4-3/4" D


Order Mfg.No. No.

B-T 005010 1526

Description

The unique output circuit of the 1536 allows it to be used to

power two 75 Ohm cables (combined load not to exceed 100

milliamps). This provision makes it possible for the 1536 to

power two SCMA-Ubs, or two CMAs.

Specifications

Output voltage and current -21 VDC Regulation maintained from 0 to 100milliamps load, with AC line voltage of at least 105 VAC.

RF impedance 75 Ohms

Return loss10-890 MHz 20 dB min., 23 dB typical

Thru loss 10-300 MHz: 0.3 db max., less than 0.2 dB typical470-890 MHz: 0.5 dB max., less than 0.2 dB typical

Isolation between outputs 10-700 MHz: 40 dB min., 50 dB typical700-890 MHz: 25 dB min., 35 dB typical

Power requirement 105-130 VAC, 60 Hz, 0.11 A

Dimensions 2-1/4" H x 3-1/2" W x 8-1/4" D


Order Mfg.No. No.

B-T 022018 1536

Preamplifier Power Supplies Preamplifier Power SuppliesModel 1536 Model 1526BLONDER-TONGUE BLONDER-TONGUE

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Headend & Earth StationSatellite Antennas

A24

4.5M EL / AZ Mount - Receive OnlySCIENTIFIC-ATLANTA Features

Available in either C or Ku band

12-pc. precision die-stamped aluminum panels forconsistent surface accuracy

Easy 2-man installation

Side lobe performance meets FCC guidelines for 2spacing

Antenna Specifications C Band Ku Band

Frequency, GHz Receive 3.7 - 4.2 GHz 10.95 - 12.75 GHz

Gain at Midband, dBi Receive43.6 dBi @ 4.0 GHz; 53.1 dBi @ 12.0GHz

Halfpower Beamwidth Receive1.1@ 4.0 GHz; 0.4@ 12.0 GHz

VSWR....................................................1.3:1

Reflector Construction, pieces ....12 pcs.

Reflector material stretched stamped steel

Wind loading (mph) Operational ..........45

Wind loading (mph) Survival ..............125Ordering Information


SCI 107935 8345PF Antenna with dual pole C band feed

Features

Available in either C or Ku band

Simple-to-install single pole mount and three-piecereflector design

High efficiency feed produces superior gain and side-lobeperformance


Frequency, GHz Receive 3.7 - 4.2 GHz 11.7 - 12.2 GHz

Gain at Midband, dBi Receive42.9 dBi @ 4.0 GHz 50.9 dBi @ 12.0GHz

Halfpower Beamwidth Receive [email protected] GHz 0.48@ 12.0 GHz

VSWR . . . . . . . . . . . . . . . . . . . . . . . . . .1.3:1

Reflector Construction, pieces . . .3 pcs.

Reflector material . . . . . . . . . . .Fiberglass

Wind loading (mph) Operational . . . . .75Wind loading (mph) Survival . . . . . . .100



COM 107928 934D0015-G2 Antenna with dual pole C band feed

Multibeam feeds for this dish are available from Comteck, askyour Telewire sales representative for details.

3.8 Meter Solid Commercial AntennaCOMTECH

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Headend & Earth StationSatellite Antennas

A25

3.1 Meter Solid Commercial AntennaPATRIOT

Features

C or Ku band

12-pc. precision die-stamped aluminum panels for consistentsurface accuracy

Easy 2-man installation


Frequency, GHz Receive 3.7 - 4.2 GHz 11.7- 12.2 GHz

Gain at Midband, dBi Receive 40.4 dBi @ 4.0 GHz 49.6 dBi @ 12.0 GHz

Halfpower Beamwidth Receive 1.1@ 4.0 GHz 0.4@ 12.0 GHz

VSWR..................................................1.25:1

Reflector Construction, piecesmulti-panel

Reflector material........................aluminum

Wind loading (mph) Operational ..........60

Wind loading (mph) Survival ..............120



STE 201920 PRT-310A AZ-EL fixed mount with dual polarity C bandfeed and cover

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Headend & Earth Station Low Noise Block Down ConvertersC-Band

A26

950 to 1450 MHzCALIFORNIA AMPLIFIER

Description

Digital-Ready Phase Lock Loop Isolated Series 31814

LNBs with built-in Isolator

Input Frequency 3.7 - 4.2 GHz

Output Frequency 950 - 1450 MHzGain 63 dB typical, 60 dB minimum

Noise Temperature Kelvin 40K to 55K

Frequency Stability, L.O. 5.15 GHz, 2.3 ppm

Output Connector F type, 75 Ohm

Required Voltage +15 to 24 VDC


Order Mfg. Noise Temp.No. No. Kelvin

CAP150071 31814-55 55K

CAP150072 31814-50 50K

CAP150073 31814-45 45K

CAP150074 31814-40 40K

Isolated LNA & LNB Questions

By Bob Partain, Satellite Technical Support, California Amplifier

What is an Isolator?

An isolator is a passive device placed between the input of

an amplifier and its first amplifying (active) element to elec-

tronically separate the input and this first amplifier.

What does an Isolator do?

It performs several functions. It reduces signals that are outside

its passband helping to prevent them from getting into amplifi-

er. It keeps all signals (such as the local oscillator of an LNB)

from getting out through the input of the amplifier. It also pro-

vides a good "match" to the input transistor regardless of what

is in front of the input.

What are the "Trade-offs"?

While it provides a good match, it does have some "insertion

loss" which adds to the noise figure of the LNB. This added noise

figure, however, is offset by the improved match to the feed.

What are good points?

The isolated products help prevent "out-of-band" interference

from overloading the first gain stage of the LNA or LNB.

Additionally it reduces the leakage of the Local Oscillator in

dual feed or "SimulSat systems helping to prevent interfer-

ence in the other LNBs.

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Headend & Earth StationLow Noise Block DownconvertersC-Band

950 to 1450 MHzCALIFORNIA AMPLIFIER

A27

Description

Digital-Ready Phase Lock Loop Series 31846 LNBs


Output Frequency 950 - 1450 MHzGain 63 dB typical, 60 dB minimum


Frequency Stability, L.O. 5.15 GHz, 2.13 ppm max.





CAP 150069 31846-50 50K

CAP 150068 31846-45 45K

CAP 150067 31846-40 40KCAP 150066 31846-35 35K

CAP 150065 31846-30 30K

Phase Locked LNB QuestionsBy Bob Partain, Satellite Technical Support, California Amplifier

1) Why does the cable operator need this type of product?The use of this product is to receive satellite

signals in C-band that are in a digital format. The reception and

processing of digital information require a very stable output

frequency from the LNB. Astandard LNB can have a stability of

+/- 500 kHz. Whereas a PLLLNB has a stability of +/- 12 kHz.

That is 41 times more stable than a standard LNB. This insures

that no digital information is lost because of excess frequency

drift. Some services that would require this accuracy would be

digital radio, digital video downlinks, computer data links, and

digital (video) compression just to name a few.

2) What is the difference between a phase locked LNB and a

Digital Ready LNB?

Manufactures have names for their products that can

be confusing. Such as digital ready, data grade, data compati-ble etc. To know for sure if the LNB is a PLL type you must

check the specifications for the frequency stability of the local

oscillator. If it is a PLL LNB the specifications for frequency sta-

bility should be better than +/- 25 kHz or 4.8 ppm (parts per mil-

lion) Anything higher than these numbers are not PLL but mere-

ly a regular commercial grade LNB.

3) Can I use this PLL LNB in the place of my current LNB

even if I am not using Digital Compression?

Yes, if a customer needs to buy LNBs now, and

believes that in the near future he may be receiving a digital

signal, he should put on a PLL LNB. They are fully compatible

with any signals that are currently on C-band.

4) What if I am currently using LNAs, how can I implementDigital Compression?

We now have a PLL downconverter that replaces the

existing downconverter, The existing LNA does not need to be

replaced, but should be upgraded to a lower noise unit if the old

LNA has a noise figure above 50.

5) What does PLL stand for? How else is the LNB frequency

stabilized PLL stands for Phase Locked Loop

Oscillator. It is an electronic circuit that is constantly monitoring

the frequency of the oscillator, and makes any adjustment for

frequency drift over time and temperature changes. Standard

LNBs use a method called DRO that stands for Dielectric

Resonate Oscillator. Both types of oscillators are set up for their

frequency at the factory and have no ability to be readjusted in

the field for frequency drift over time or temperature changes.

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Headend & Earth Station Low Noise Block DownconvertersC-Band

950 to 1450 MHz LNB 950 to 1450 MHz LNBCALIFORNIA AMPLIFIER SCIENTIFIC-ATLANTA

A28

Description

California Amplifier - Professional II LNBs

Not phase locked


Output Frequency 950 - 1450 MHz

Gain 65 dB minimum


Temperature Stability -40F to 140F





CAP 604986 140105-35 35K

CAP 604987 140105-30 30K

CAP 604988 140105-25 25K

Description

Scientific-Atlanta - 9321 Series LNBs



Gain 56 dB 6 dB

Noise Temperature Kelvin 35K

Temperature Stability -40F to 140F





SCI 108055 9321-35 3.5K

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Headend & Earth StationLNBs & LNAs

270 to 770 MHz LNB 3.7 to 4.2 GHz LNASCIENTIFIC-ATLANTA CALIFORNIA AMPLIFIER

A29

Description

Scientific-Atlanta - 9360 Series LNBs



Gain 56 dB dB


Temperature Stability -40F to +140F





SCI 056315 9360-90 90K

Description

California Amplifier - 30622 Series LNAs

Frequency Range 3.7 - 4.2 GHz

Gain 50 dB typical


Output Power 1 dB gain Compression +10 dB minimum

Input VSWR 2.5:1 typical

Output VSWR 1.5:1 maximum

Gain Stability (week) .6 dB

Temperature Stability -22F to +140F

Output Connector N type, 50 Ohm




CAP 140978 30622-30 30K

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Headend & Earth StationIn-Line Block Converters

A30

Features

Digital compression ready with superior local oscillatorstability and phase noise specifications

Allows integration of new digital satellite receivers into

LNA systems with limited system modification In-line device, can mount at dish or after power divider

Input frequency 3.7 - 4.2 GHz

Output frequency 950 - 1525 MHz

Noise figure 8 dB maximum

Conversion gain 20 dB typical

Frequency stability local oscillator 5.15 GHz, 2.3 ppm max.,-40C to +60C

Phase noise 63 dBc/Hz @ 100 Hz73 dBc/Hz @ 1 kHz

80 dBc/Hz @ 10 kHz90 dBc/Hz @ 100kHz

Required voltage +16 to +24 VDC

Connectors Input type N female

Connectors Output type F female


Order Mfg.No. No.

CAP 153043 140001

In Line Block Converter In Line Block ConverterCommercial Digi-Ready 950-1450 MHz - Model 9325Phase Lock Loop SCIENTIFIC-ATLANTACALIFORNIA AMPLIFIER

Features

A stand alone device

Accepts input of 3.7-4.2 GHz from a standard TVROLNA and converts it to an output frequency band of 950-

1450MHz Can be used to add 950-1450 receivers (models 9630,

9640, 9650, 9660) to an existing LNA system



Noise figure 14 dB max. @ 25C

Conversion gain 18 dB minimum24 dB maximum

Input R.L. 10 dB (50 Ohms)

Output R.L. 10 dB (75 Ohms)

L.O. stability 3 MHz over full temperature

Required voltage + 15 to +21 VDCConnectors Input type N female



Order Mfg.No. No.

SCI 119307 9325

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Headend & Earth StationIn-Line Block Converters

950-1450 MHz - Model 30944CAIn Line Block ConverterCALIFORNIA AMPLIFIER

A31



Noise figure 16 dB maximum

Conversion gain 18 to 24 dB typicalInput R.L. 14 dB minimum

Output R.L. 14 dB minimum

L.O. stability 2.5 MHz

Required voltage + 16 to +241 VDC

Connectors Input type N female



Order Mfg.No. No.

CAP 141871 30944CA

Features

A stand alone device

Accepts input of 3.7-4.2 GHz from a standard TVROLNA and converts it to an output frequency band of 950-1450MHz

Can be used to add 950-1450 receivers to an existingLNA system

Not phase locked

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Headend & Earth StationLine Amplifiers

A32

450 - 1500 MHz AmplifierPICO / MACOM Description

Designed to amplify downconverter satellite signals in the 450-

1500 MHz range over long distances.The unit passes DC

power through for powering LNBs and downconverters.

Specifications

Frequency range 450 to 1500 MHz

Gain 900 MHz - 12 dB1500 MHz - 18 dB

Noise figure 4 dB

DC voltage +15 to +18 VDC

Connector F type, 75 Ohm

High Intercept IF Amplifier950 - 1500 MHzCALIFORNIA AMPLIFIER


Order Mfg.No. No.

PIC 052773 LA-915

Description

Maintains proper signal strength on systems where long cable

runs require additional amplification. This unit has high dynam-

ic range and features a waterproof housing which allows instal-

lation at the dish.

Specifications


Gain 17 dB min18 dB typical

Gain Slope +3 dB typical

Input VSWR 1.5:1 typical2.0:1 maximum

Output VSWR 1.8:1 typical2.0:1 maximum

DC Voltage +15 to +28 VDC @ 130 mA, maximum


Order Mfg.No. No.

CAP 143584 31192

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Headend & Earth StationMultiple Satellite Feed Systems

A33

Multiple Satellite Feed SystemsRAINBOW

Description

The Rainbow Multiple Feed System allows simultaneous

reception of 2 or more satellites from one earth station and can

accept up to 5 separate dual pole feeds. This multiple feed sys-

tem looks at a total of 16of arc. Performance is dependent on

antenna size and degrees off boresight of feed. Each feed

assembly includes antenna spars, mounting hardware and 2

dual pole C-band feeds.


Gain st Gain at Gain at Gain at BeamGain at 2off 3off 4off 8off

IsolationOrder Mfg. Antenna Antenna Boresight Boresight Boresight Boresight Boresight (db)No. No. Mfg. Size(M) (dBi) (dBi) (dBi) (dBi) (dBi) typical

RBW 144737 MSFAND4.5/2 Andrews 4.5 43.5 43.3 43.1 43.0 41.3 40

RBW 144733 MSFCOM3.8/2 Comtech 3.8 41.1 40.9 40.8 40.6 39.4 35

RBW 144736 MSFCOM5.0/2 Comtech 5.0 44.0 43.9 43.9 43.6 43.2 40

RBW 144739 MSFMARK5.0/2 Mark Antenna 5.0 44.0 43.9 43.9 43.6 42.9 40

RBW 144728 MSFMICRO5.0/2 Microdyne 5.0 44.0 43.8 43.7 43.6 41.2 40

----- MSFMICRO7.0/2 Microdyne 7.0 47.0 46.8 46.7 46.4 45.5 41

----- MSFPROD4.5/2 Prodelin 4.5 43.5 43.3 43.1 43.0 41.3 40

----- MSFPROD5.0/2 Prodelin 5.0 44.0 43.9 43.9 43.6 42.9 41

RBW 141873 MSFSA4.5PF/2 S-A 4.5 43.5 43.3 43.1 43.0 41.4 40

RBW 141874 MSFSA4.6PF/2 S-A 4.6 43.5 43.3 43.1 43.0 41.4 40

RBW 141872 MSFSA5.0PF/2 S-A 5.0 44.3 44.1 44.0 43.9 43.1 40

Dont see your dish listed? Call your sales representative and we will see if there is a rainbow feed for your

dish.

The following specifications are typical for all Rainbow multibeam feeds

Operating frequencies . . . . . . . . 3.7 - 4.2 GHz

Feed type . . . . . . . . . . . . . . . . . . . bi-nomial step transition

VSWR . . . . . . . . . . . . . . . . . . . . . . 1.4:1 maximum

Polarization . . . . . . . . . . . . . . . . . dual linear, 360adjustment

Cross polarization suppression 35 db min. on axis, 41 db typical

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Headend & Earth StationMultiple Satellite Feed Systems

A34

Offset Feeds with Orthomode Couplersfor Multibeam Feed SystemsRAINBOW

Description

Rainbow Satellite Communications, Inc. has developed an off-

set feed with an orthomode coupler for multibeam reception of

2spaced satellites. This allows the operator to receive addi-

tional satellite signals utilizing their existing multibeam retrofit

kits (if the existing multibeam retrofit kit has the necessary

width to accommodate the added satellite). This product is

used when 2feed horns have already been utilized to receive

multiple satellites.



RBW 140905 MSF-2-RSCADD1 for Rainbow multibeam kit

RBW 140903 MSF-2-MDCADD1 for Microdyne multibeam kit

RBW 140902 MSF-2-CTADD1 for Comtech multibeam kit

RBW 140907 MSF-2-SAADD1 for S/Amultibeam kit (0 - 3)

RBW 140906 MSF-SAADD1 for S/Amultibeam kit

(3 - 6off boresight)

Specifications

Minimum spacing between orthomode couplers2.5 inches

Minimum spacing of satellite position

for antenna with 60" focal length . . . . . . . . . . . . . . . . . 1.85

VSWR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2:1

Insertion loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 dB

Axial ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 dB

Illumination angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

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Headend & Earth StationPower Dividers

3.7 to 4.2 GHz (C-band) Power DividerAVCOM

Specifications

Passes power through at least one port.

Frequency range 3.7 to 4.2 GHzConnector N type, 50 Ohm

Impedance 50 Ohm

Insertion loss PD-2: 3 dBPD-4: 6 dBPD-8: 9 dB

Specifications

Does not pass power from output to input

Frequency range 3.7 to 4.2 GHz

Connector N type, 50 Ohm

Impedance 50 Ohm

Insertion loss 143036: 4.5 dB143035: 7.5 dB

3.7 to 4.2 GHz (C-Band) Power DividerSCIENTIFIC-ATLANTA


Order Mfg. No.No. No. of Ports

AVC 100840 PD-2 2

AVC 100762 PD-4 4AVC 100252 PD-8 8

A35


Order Mfg. No.No. No. of Ports

SCI 108064 143036 4

SCI 108066 143035 8

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Headend & Earth StationSignal Splitters

950 to 1500 MHz Signal SplitterSCIENTIFIC-ATLANTA

Specifications

Passes power through one port.

Frequency range900 to 1500 MHz


Impedance 75 Ohm

Insertion loss 342154: 3.5 dB342155: 7.5 dB

342156: 10.5 dB

950 to 1500 MHz Signal SplitterJUST DROP


Order Mfg. No. ofNo. No. Ports

SCI 073943 342154 2

SCI 073944 342155 4SCI 073945 342156 8

A36

Specifications

Passes power through at least one port.



Impedance 75 Ohm

Insertion loss HFS-2: 3.5 dBHFS-4: 6.5 dB


Order Mfg. No. ofNo. No. Ports Description

JST 202202 HFS-2 2 power passing one leg

JST 202201 HFS-4 4 power passing one leg

JST 202200 HFS-2P 2 power passing all legs

JST 202199 HFS-4P 4 power passing all legs

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Description

RG 214 Male 50 Ohm N Type Connector

Description

RG 213 Male 50 Ohm N Type Connector


Headend & Earth StationCoaxial Cable & Connectors-50 OHM

RG-213 Jumper Cable Assemblies50 Ohm Impedance

Crimp Tool for RG-213 & RG 214N Type Connectors

RG-213 Connector

RG-214 Connector


Order Mfg. N

No. No. Jumper Length Connectors

JST 202203 J483NN RG-213 4 Male

WHT 101175 J1443NN RG-213 12 Male

A37


Order Mfg.No. No.

PIC 101498 NMA234

GIL 057077 GIL GN821AHS/460


Order Mfg.No. No.

GIL 072913 GN-214AHS/480



BHG 137498 HCT-480 For RG-213 connectors

BHG 043364 HCT-770 For RG-214 connectors

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Headend & Earth StationCoaxial Connectors-50 OHM

N Type Adapters 50 Ohm Impedance


Order Mfg.No. No.

APL 040479 82-100

A38

Male to Male Splice

Female to Female Splice


Order Mfg.No. No.

APL 040480 82-101


Order Mfg.No. No.

SCI 113495 41554

Description

Allows interconnection of male type N and type F connec-

tors. Corrosion-resistant stainless steel and aluminum.

Connector Adapter

Connectors


For Comm / Scope headend cables

Order Mfg.No. No.

GIL 109667 GF161AHS/342

LRC 112593 F59HEC


For Belden headend cables

Order Mfg.No. No.

GIL 035325 GF6AHS/342

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Headend & Earth StationCoaxial Cables& Connectors-75OHM

A39

RG59 (S59 HEC) Basic Construction:

22 AWG (nom. 0.0226" (0.58 mm)) silver plated copper covered

steel center conductor; solid natural polyethylene dielectric;

inner shield aluminum-polypropylene-aluminum laminated

bonded overlap; outer shields of 34 AWG tinned copper braid;

jacket flame retardant black polyvinylchloride. Nom. O.D.

0.265" (6.73 mm). 61 lbs. per 1,000 feet.

Headend CableBELDEN

RG59 (9167) Basic Construction

20 AWG (nom. 0.032" [0.81mm]) silver plated copper covered

steel center conductor; gas injected foam polyethylene dielec-

tric; shield Duobond II plus 95% aluminum braid plus aluminum

foil with shorting fold; jacket black polyvinylchloride. Nom. O.D.0.242" (6.15mm). 29.35 lbs. per 1,000 feet.

Headend Cable

COMM/SCOPE



BEL 202452 9167 RG 59

BEL 294040 9168 RG 6

RG6 (9168) Basic Construction

18 AWG (nom. 0.040" [1.02mm]) silver plated copper covered

steel center conductor; gas injected foam polyethylene dielec-

tric; shield Duobond II plus 95% aluminum braid plus aluminum

foil with shorting fold; jacket black polyvinylchloride. Nom. O.D.

0.275" (6.99mm). 31 lbs. per 1,000 feet.

RG59 (F59 HEC-2) Basic Construction:

22 AWG (nom. 0.0226" (0.58 mm)) silver plated copper covered

steel center conductor; gas expanded polyethylene dielectric;

inner shield aluminum-polypropylene-aluminum laminated

bonded overlap; outer shields of 34 AWG tinned copper braid;

jacket flame retardant black polyvinylchloride. Nom. O.D.0.265" (6.73 mm). 61 lbs. per 1,000 feet.

RG59 (F59 HEC / 3-22) Basic Construction:

22 AWG (nom. 0.032" [0.81 mm]) silver plated copper covered

steel center conductor; gas expanded polyethylene dielectric;

inner shield aluminum-polypropylene-aluminum laminated tape

with overlap bonded to dielectric; 34 AWG aluminum braid; alu-

minum-polypropylene-aluminum non-bonded tape; 34 AWG

aluminum braid; jacket flame retardant black polyvinylchloride

meeting NEC Article 820, CATV category and 725 Class 2

Circuit Ratings. Nom. O.D. 0.270" (6.86 mm). Audio: three pair

22 AWG bare copper, polyethylene insulation; 24 AWG tin/cop-

per drain and polyester rip cord with aluminum shield on each

pair; dual construction. 59 lbs. per 1,000 feet.

RG214 (7714) Basic Construction:

Center conductor: 13 AWG, 7/.0296 SC wire type, 1.73 nom.

DCR Ohms/1000'; dielectric: PE, .285" nom. O.D., shield con-

struction: 2-95% SC, .7 nom. DCR/1000'; jacket: NCPVC,

.425" nom. O.D.; nom. cap.: 30.8 pt/ft.; velocity of propagation:

66%; impedance: 50 Ohms. 500' reels 159 lbs per 1,000 feet.



CSP 202453 S59 HEC RG 59

CSP 135672 F59 HEC-2 RG 59

CSP 140798 F59 HEC/3-22 RG 59 single w/ three22 AWG twisted pair

CNT 201454 7714 RG 214

RG 214

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Headend & Earth StationDigiCiphers

DigiCipher II DSR-4400 EconomicalCommercial IRDGENERAL INSTRUMENT

A40

Features

DigiCipher II digital video

Digital transmissions with multiple channels on onetransponder

MPEG-2 digital standard compatible

Outputs NTSC formats when NTSC is transmitted viaDigiCipher II

Outputs PAL formats when PAL is transmitted viaDigiCipher II

Asynchronous 1200-19200 baud RS-232 data channel

Auto-ranging power input for international use

Cuetones via subcarrier or digitally generated

Digital stereo Dolby AC-3 audio (MUSICAM optional)

Displays subtitles transmitted with program material

Extended range tuner, 950-1550 MHz (optional2050 MHz)

High-speed synchronous data channel (9 Mbps)

Retune ready Two line, 40 character backlit LCD with five front panel

keys to operate menus

Unique address for access control

Closed caption pass-through, F1/F2

Custom satellite names and frequency plans, prepro-grammed and user-alterable for C- and Ku-band

Fingerprinting for piracy reduction

Standard rack mounting

Supports both C- and Ku- band

One year limited warranty


Order Mfg.No. No.

GEN 202145 DSR-4400

Specifications

Input

Input Frequency 0.95 to 1.55 GHz

Input Impedance 75

Input Connector One F-type

LNB power out F connector 16VDC min./486mA

Digital Processing

Formats MPEG-II, DigiCipher II

MCPC QPSK Rates 19.5, 29.3, Msps

Forward Error Correction 5/11, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 7/8Video

Composite Output Frequency Response 20 Hz to 20 kHz: 1dB p-p

Signal Noise Ratio 85 dB min.

Differential Gain 5% max

Differential Phase 5deg. max.

Output Impedance 600 , diff.

Output Level 16 dBm, peak, unity system gain

Audio

Outputs 1 stereo pair

Output Level +16.0 dBm, 0.1 dB into 600 , balanced attenuator,adjustable (0 to -15 dB)

Frequency Response 0.6 dB, 20 Hz to 20 kHz

Total Harmonic Distortion 0.4% or better at 1 kHz

Signal/Noise Ratio 85 dB or better at 1 kHz measured at 1 kHz

Isolation 80 dB, 1 kHz

Connector RCAphono x 2

L/R Separation 80 dB

Physical / Environment

Temperature 0to 40C ambient

Humidity 95% relative

Dimensions 35 cm W x 34.8 cm D x 8.9 cm H

Weight 4.5 kg

Power Input 90-240 VAC, 47-63H, 60 W nominal / 260 W max

UL Listed

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Features

Frequency synthesized video tuning range of 950-1450MHz Channel may be selected by frequency or channelnumber.

Compatible operation on C and Ku Band.

Built-in VideoCipher RS Commercial Descrambler.

Threshold extension circuitry provides a static threshold ofless than 7 dB C/N.

Digital stereo audio on VideoCipher signals.

6.8 MHz fixed subcarrier audio or variable tuning rangefrom 5.0 to 9.0 MHz on unscrambled signals.

Removable front panel allows module access from thefront of the IRD without removing receiver from the rack.

Standard 19 rack mount; 1.75 high. Switchable LNB power.

Removable power cord.

Audio/video settings controlled by front panel DIP switches.


Headend & Earth StationSatellite Receivers

ESR1440 - Satellite ReceiverDRAKE

ESR-1260 IRD Satellite ReceiverDRAKE

Description

The Drake ESR1440 commercial earth station receiver provides

high quality and reliability at an economical price. This receiver is

designed for operation in either NTSC or PAL environments.

ESR1245 IRD - Satellite ReceiverDRAKE

Description

The ESR-1260 IRD is a high quality, commercial grade, rack-

mounted integrated receiver descrambler (VideoCipher RS)

with synthesized frequency tuning of IF and subcarrier audio

frequency. It is compact (1.75 H x 19 W x 19.75 D), and

saves on rack space. The Video-Cipher RS module is

accessed directly through the front panel, providing added con-

venience for the operator. Major operating functions are select-ed via the front panel and programming is simplified by liquid

crystal display of operating parameters.

Two IF bandwidth filters, 27 and 22 MHz, can be used with or

without threshold extension. Dual input tuner, 950-1450 MHz.

Compatible operation on C and Ku band. AFC, IF bandwidth

and threshold extension, audio frequency, and VC on-screen

display on/off are all selectable by the operator. Adjustable

audio and video level. Static threshold less than 7 dB C/N.

A41


Order Mfg.No. No.

DRK 201881 ESR 1440

Features

Compatible operation on C and Ku Band

Wide coverage tuner 950-2050 MHz

Transponder selection may be entered by frequency orC-Band channel number

P.L.L. synthesized tuning of both video and audiosubcarrier demodulators

Descrambler compatible, Horizontal and Vertical switchingfor dual feeds

Channel and audio/video frequencies set by frontpanel DIP switches

Four audio de-emphasis selections, selectable by DIP switch

Compatible with Wegener stereo audio

525 line or 625 line video de-emphasis

Adjustable video output level

Switchable on/off LNB power

Made in the U.S.A.

120 or 230 Volt power

Description

The Drake ESR1245 IRD provides high-quality performance at

an economical price. Designed for commercial cable or

SMATV applications, some of its outstanding features include:


Order Mfg.No. No.

DRK 201272 ESR 1245 IRD

Frequency 950 to 1450 MHz

Input level -60 to -25 dBm

Noise figure 12 dB typical


Order Mfg.No. No.

DRK 604841 ESR-1260 IRD

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Headend & Earth StationSatellite Receivers

CESR Series Satellite ReceiverBLONDER TONGUE

A42

Specifications C

Documents

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