Rototiller Brochure

Copyright © 2009 Electronics Research, Inc. All rights reserved.Printed in USA (No. 20090316001_AEN01)Your Single Source for Broadcast Solutions™ www.eriinc.com 877 ERI-LINE

ROTOTILLER® Circularly Polarized FM Antenna

ERI antennas are unchallenged in quality and dependability. ERI is the only manufacturer to use large diameter outer conductors and a completely enclosed, pressurized, internal series feed system. The result is a simple and reliable method of coupling power to the elements. Unlike competing designs, ERI series fed antennas do not require a troublesome secondary current loop for element excitation with all the resulting disadvantages. All ERI antennas include brackets for mounting on leg, pole, or face mounting (up to 42-inch uniform cross section tower); brackets for other mounting configurations are optionally available.

ERI’s original and distinctive design combines the exceptional engineering features of an internally fed, fully pressurized system with superior fabrication characterized by totally welded feed connections, rugged brass material and TIG welding. The ROTOTILLER® FM antenna’s unique design consists of two series fed, bent dipole elements which form a space phased, circularly polarized radiator. The antenna’s configuration and the large diameter of the radiating elements contribute to the excellent bandwidth of the antenna system, and also inhibits corona discharge.

The horizontally polarized horizontal plane azimuth pattern of the SHPX series antenna is omnidirectional within ±2 dB when the antenna is pole or LAMBDA™ Optimized Mounting System mounted atop a tower. Side mounting the antenna on a typical tower structure will affect the azimuth pattern. ERI offers a pattern measurement service to assist in determining the effect of the mounting structure on the antenna’s pattern. Using ERI’s pattern optimization service, the pattern’s circularity may be improved through the addition of parasitically excited elements.

BenefitsLow VSWR, superior VSWR band width, and minimal •weather related VSWR problemsFully pressurized, internal feed and welded feed •connectionsHigh input power capacity•Modular construction facilitates easy installation and •repairRugged brass construction and stainless steel support •brackets and hardware – Corrosion resistant constructionRadomes or deicing heaters not normally required for •radial ice less than 1/2-inch; however radomes or deicing heaters are available

CharacteristicsProduct Line ROTOTILLER®

Product Series Classic Series

Frequency Range 88 - 108 MHz, Single frequency or multiplexed versions

Polarization Circular (Clockwise)

Azimuth ± 2 dB in free space

Axial Ratio Less than 3 dB in free space

VSWR at Input 1.07:1 or less (with field matching) 1.25:1 or less (with top pole or LAMBDA™ Mounting System) 1.50:1 or less (top mounted without field matching)



Electrical Specifications

Type Number Number of Bays

Power Gain dB Gain Input Type Feed

ConfigurationInput Power Rating Bay to Bay

SpacingkW

SHP-1AE 1 0.4611 -3.3623 3 1/8 inch 50 Ohm Female End 32.0 Full Wave

SHP-1BE 1 0.4611 -3.3623 6 1/8 inch 50 Ohm Female End 40.0 Full Wave

SHP-2AE 2 0.9971 -0.0128 3 1/8 inch 50 Ohm Female End 32.0 Full Wave

SHP-2AC 2 0.9971 -0.0128 3 1/8 inch 50 Ohm Female Center 39.0 Full Wave

SHP-2BE 2 0.9971 -0.0128 6 1/8 inch 50 Ohm Female End 56.0 Full Wave

SHP-2AC6 2 0.9971 -0.0128 6 1/8 inch 50 Ohm Female Center 64.0 Full Wave

SHP-2BC 2 0.9971 -0.0128 6 1/8 inch 50 Ohm Female Center 80.0 Full Wave

SHP-2CE 2 0.9971 -0.0128 6 1/8 inch 50 Ohm Female End 80.0 Full Wave

SHP-3AE 3 1.5588 1.9278 3 1/8 inch 50 Ohm Female End 32.0 Full Wave

SHP-3AC 3 1.5588 1.9278 3 1/8 inch 50 Ohm Female Off Center 39.0 Full Wave

SHP-3BE 3 1.5588 1.9278 6 1/8 inch 50 Ohm Female End 56.0 Full Wave

SHP-3AC6 3 1.5588 1.9278 6 1/8 inch 50 Ohm Female Off Center 64.0 Full Wave

SHP-3BC 3 1.5588 1.9278 6 1/8 inch 50 Ohm Female Center 112.0 Full Wave


SHP-4AC 4 2.1332 3.2903 3 1/8 inch 50 Ohm Female Center 39.0 Full Wave


SHP-4AC6 4 2.1332 3.2903 6 1/8 inch 50 Ohm Female Center 64.0 Full Wave


SHP-4CE 4 2.1332 3.2903 6 1/8 inch 50 Ohm Female End 120.0 Full Wave









SHP-6CE 6 3.3028 5.1888 6 1/8 inch 50 Ohm Female End 120.0 Full Wave



SHP-7BC 7 3.8935 5.9034 6 1/8 inch 50 Ohm Female Off Center 112.0 Full Wave
















SHP Model - Super High Power







SpacingkW

SHP-2AE-HW 2 0.7020 -1.5366 3 1/8 inch 50 Ohm Female End 32.0 Half Wave

SHP-2AC-HW 2 0.7020 -1.5366 3 1/8 inch 50 Ohm Female Center 39.0 Half Wave

SHP-2BE-HW 2 0.7020 -1.5366 6 1/8 inch 50 Ohm Female End 56.0 Half Wave

SHP-2AC6-HW 2 0.7020 -1.5366 6 1/8 inch 50 Ohm Female Center 64.0 Half Wave

SHP-2BC-HW 2 0.7020 -1.5366 6 1/8 inch 50 Ohm Female Center 80.0 Half Wave

SHP-2CE-HW 2 0.7020 -1.5366 6 1/8 inch 50 Ohm Female End 80.0 Half Wave

SHP-3AE-HW 3 1.0120 0.0518 3 1/8 inch 50 Ohm Female End 32.0 Half Wave

SHP-3AC-HW 3 1.0120 0.0518 3 1/8 inch 50 Ohm Female Off Center 39.0 Half Wave

SHP-3BE-HW 3 1.0120 0.0518 6 1/8 inch 50 Ohm Female End 56.0 Half Wave

SHP-3AC6-HW 3 1.0120 0.0518 6 1/8 inch 50 Ohm Female Off Center 64.0 Half Wave

SHP-3BC-HW 3 1.0120 0.0518 6 1/8 inch 50 Ohm Female Center 112.0 Half Wave


SHP-4AC-HW 4 1.3070 1.1628 3 1/8 inch 50 Ohm Female Center 39.0 Half Wave


SHP-4AC6-HW 4 1.3070 1.1628 6 1/8 inch 50 Ohm Female Center 64.0 Half Wave


SHP-4CE-HW 4 1.3070 1.1628 6 1/8 inch 50 Ohm Female End 120.0 Half Wave









SHP-6CE-HW 6 1.9130 2.8171 6 1/8 inch 50 Ohm Female End 120.0 Half Wave



SHP-7BC-HW 7 2.2170 3.4577 6 1/8 inch 50 Ohm Female Off Center 112.0 Half Wave






SHP-9BC-HW 9 2.8230 4.5071 6 1/8 inch 50 Ohm Female Off Center 112.0 Half Wave






SHP-11BCHW 11 3.4290 5.3517 6 1/8 inch 50 Ohm Female Off Center 112.0 Half Wave











SpacingkW

MP-1E 1 0.4611 -3.3623 3 1/8 inch 50 Ohm Female End 12.0 Full Wave

MP-2E 2 0.9971 -0.0128 3 1/8 inch 50 Ohm Female End 18.0 Full Wave

MP-2C 2 0.9971 -0.0128 3 1/8 inch 50 Ohm Female Center 18.0 Full Wave

MP-3E 3 1.5588 1.9278 3 1/8 inch 50 Ohm Female End 18.0 Full Wave

MP-3C 3 1.5588 1.9278 3 1/8 inch 50 Ohm Female Off Center 18.0 Full Wave


MP-4C 4 2.1332 3.2903 3 1/8 inch 50 Ohm Female Center 18.0 Full Wave










MP-2E-HW 2 0.7020 -1.5366 3 1/8 inch 50 Ohm Female End 18.0 Half Wave

MP-2C-HW 2 0.7020 -1.5366 3 1/8 inch 50 Ohm Female Center 18.0 Half Wave

MP-3E-HW 3 1.0120 0.0518 3 1/8 inch 50 Ohm Female End 18.0 Half Wave

MP-3C-HW 3 1.0120 0.0518 3 1/8 inch 50 Ohm Female Off Center 18.0 Half Wave


MP-4C-HW 4 1.3070 1.1628 3 1/8 inch 50 Ohm Female Center 18.0 Half Wave










MP Model - Medium Power







SpacingkW

LP-1E 1 0.4611 -3.3623 1 5/8 inch 50 Ohm Female End 9.0 Full Wave

LP-2E 2 0.9971 -0.0128 1 5/8 inch 50 Ohm Female End 9.0 Full Wave

LP-2C 2 0.9971 -0.0128 3 1/8 inch 50 Ohm Female Center 12.0 Full Wave

LP-3E 3 1.5588 1.9278 1 5/8 inch 50 Ohm Female End 9.0 Full Wave

LP-3C 3 1.5588 1.9278 3 1/8 inch 50 Ohm Female Off Center 12.0 Full Wave


LP-4C 4 2.1332 3.2903 3 1/8 inch 50 Ohm Female Center 12.0 Full Wave










LP-2E-HW 2 0.7020 -1.5366 1 5/8 inch 50 Ohm Female End 9.0 Half Wave

LP-2C-HW 2 0.7020 -1.5366 3 1/8 inch 50 Ohm Female Center 12.0 Half Wave

LP-3E-HW 3 1.0120 0.0518 1 5/8 inch 50 Ohm Female End 9.0 Half Wave

LP-3C-HW 3 1.0120 0.0518 3 1/8 inch 50 Ohm Female Off Center 12.0 Half Wave


LP-4C-HW 4 1.3070 1.1628 3 1/8 inch 50 Ohm Female Center 12.0 Half Wave










LP Model - Low Power



SHP Model - Super High PowerMechanical Specifications

Type Number

Weight CaAa

Antenna Antenna & ½ in. radial ice Antenna & radome Antenna, radome,

½ in. radial ice Antenna Antenna & ½ in. radial ice

Antenna with radome

Antenna, radome, & ½ in. radial ice

lbm kg lbm kg lbm kg lbm kg ft2 m2 ft2 m2 ft2 m2 ft2 m2

SHP-1AE 107.00 48.53 187.00 84.82 157.00 71.21 312.00 141.52 4.69 0.44 5.93 0.55 8.98 0.83 10.26 0.95

SHP-1BE 155.00 70.31 255.00 115.67 205.00 92.99 380.00 172.37 5.28 0.49 6.57 0.61 9.56 0.89 10.90 1.01

SHP-2AE 220.00 99.79 380.00 172.37 320.00 145.15 630.00 285.76 9.99 0.93 12.96 1.20 18.55 1.72 21.61 2.01

SHP-2AC 250.00 113.40 410.00 185.97 350.00 158.76 660.00 299.37 11.13 1.03 14.73 1.37 19.69 1.83 23.38 2.17

SHP-2BE 315.00 142.88 515.00 233.60 415.00 188.24 765.00 347.00 11.66 1.08 14.48 1.35 20.22 1.88 23.13 2.15

SHP-2AC6 315.00 142.88 480.00 217.72 415.00 188.24 730.00 331.12 12.50 1.16 15.78 1.47 21.06 1.96 24.43 2.27

SHP-2BC 415.00 188.24 600.00 272.16 515.00 233.60 850.00 385.55 13.33 1.24 16.33 1.52 21.89 2.03 24.98 2.32

SHP-2CE 345.00 156.49 575.00 260.82 445.00 201.85 825.00 374.21 14.00 1.30 16.83 1.56 22.75 2.11 25.48 2.37

SHP-3AE 333.00 151.05 573.00 259.91 483.00 219.09 948.00 430.01 15.28 1.42 19.99 1.86 28.13 2.61 32.97 3.06

SHP-3AC 363.00 164.65 603.00 273.52 513.00 232.69 978.00 443.61 16.42 1.53 21.76 2.02 29.27 2.72 34.74 3.23

SHP-3BE 475.00 215.46 775.00 351.53 625.00 283.50 1150.00 521.63 18.04 1.68 22.38 2.08 30.88 2.87 35.36 3.29

SHP-3AC6 428.00 194.14 673.00 305.27 578.00 262.18 1048.00 475.36 17.79 1.65 22.81 2.12 30.64 2.85 35.79 3.32

SHP-3BC 575.00 260.82 860.00 390.09 725.00 328.85 1235.00 560.19 19.71 1.83 24.23 2.25 32.55 3.02 37.21 3.46

SHP-4AE 446.00 202.30 766.00 347.45 646.00 293.02 1266.00 574.25 20.58 1.91 27.01 2.51 37.70 3.50 44.32 4.12

SHP-4AC 476.00 215.91 796.00 361.06 676.00 306.63 1296.00 587.86 21.72 2.02 28.79 2.67 38.84 3.61 46.09 4.28

SHP-4BE 635.00 288.03 1035.00 469.47 835.00 378.75 1535.00 696.26 24.42 2.27 30.28 2.81 41.54 3.86 47.59 4.42

SHP-4AC6 541.00 245.39 871.00 395.08 741.00 336.11 1371.00 621.88 23.09 2.15 29.84 2.77 40.21 3.74 47.14 4.38

SHP-4BC 735.00 333.39 1105.00 501.22 935.00 424.11 1605.00 728.02 26.09 2.42 32.13 2.98 43.21 4.01 49.44 4.59

SHP-4CE 695.00 315.25 1155.00 523.90 895.00 405.97 1655.00 750.70 30.00 2.79 35.39 3.29 47.20 4.39 52.70 4.90

SHP-5AE 559.00 253.56 959.00 435.00 809.00 366.96 1584.00 718.49 25.87 2.40 34.04 3.16 47.28 4.39 55.67 5.17

SHP-5AC 559.00 253.56 959.00 435.00 809.00 366.96 1584.00 718.49 25.87 2.40 34.04 3.16 47.28 4.39 55.67 5.17

SHP-5BE 795.00 360.61 1295.00 587.40 1045.00 474.00 1920.00 870.90 30.80 2.86 38.19 3.55 52.21 4.85 59.82 5.56

SHP-5AC6 672.00 304.81 1152.00 522.54 972.00 440.89 1902.00 862.73 31.17 2.90 41.07 3.82 56.85 5.28 67.03 6.23

SHP-5BC 895.00 405.97 1365.00 619.15 1145.00 519.36 1990.00 902.65 32.47 3.02 40.04 3.72 53.88 5.01 61.67 5.73

SHP-6AC 702.00 318.42 1182.00 536.15 1002.00 454.50 1932.00 876.34 32.31 3.00 42.84 3.98 57.99 5.39 68.80 6.39

SHP-6AC6 767.00 347.91 1262.00 572.43 1067.00 483.98 2012.00 912.63 33.68 3.13 43.89 4.08 59.36 5.51 69.85 6.49

SHP-6BC 1055.00 478.54 1610.00 730.28 1355.00 614.62 2360.00 1070.48 38.85 3.61 47.94 4.45 64.54 6.00 73.90 6.87

SHP-6CE 1045.00 474.00 1735.00 786.98 1345.00 610.08 2485.00 1127.18 46.00 4.27 53.96 5.01 71.66 6.66 79.91 7.42

SHP-7AC 785.00 356.07 1345.00 610.08 1135.00 514.83 2220.00 1006.97 36.46 3.39 48.09 4.47 66.43 6.17 78.38 7.28

SHP-7AC6 850.00 385.55 1425.00 646.37 1200.00 544.31 2300.00 1043.26 37.83 3.51 49.14 4.57 67.80 6.30 79.43 7.38

SHP-7BC 1215.00 551.11 1855.00 841.41 1565.00 709.87 2730.00 1238.31 45.23 4.20 55.84 5.19 75.20 6.99 86.13 8.00

SHP-8AC 928.00 420.93 1568.00 711.23 1328.00 602.37 2568.00 1164.83 42.90 3.99 56.89 5.29 77.14 7.17 91.51 8.50

SHP-8AC6 993.00 450.42 1653.00 749.79 1393.00 631.85 2653.00 1203.38 44.27 4.11 57.94 5.38 78.51 7.29 92.56 8.60

SHP-8BC 1375.00 623.69 2115.00 959.35 1775.00 805.13 3115.00 1412.94 51.62 4.80 63.75 5.92 85.86 7.98 98.36 9.14

SHP-9AC 1136.00 515.28 1876.00 850.94 1586.00 719.40 3001.00 1361.23 50.71 4.71 66.74 6.20 89.22 8.29 105.69 9.82

SHP-9AC6 1201.00 544.76 1961.00 889.49 1651.00 748.88 3086.00 1399.79 52.08 4.84 67.79 6.30 90.59 8.42 106.74 9.92

SHP-9BC 1535.00 696.26 2375.00 1077.28 1985.00 900.38 3500.00 1587.57 58.01 5.39 71.66 6.66 96.52 8.97 110.59 10.27

SHP-10AC 1154.00 523.45 1954.00 886.32 1654.00 750.24 3204.00 1453.31 53.49 4.97 70.95 6.59 96.29 8.95 114.21 10.61

SHP-10AC6 1219.00 552.93 2044.00 927.14 1719.00 779.73 3294.00 1494.13 54.86 5.10 72.00 6.69 97.66 9.07 115.26 10.71

SHP-10BC 1695.00 768.84 2620.00 1188.41 2195.00 995.64 3870.00 1755.40 64.38 5.98 79.56 7.39 107.19 9.96 122.82 11.41

SHP-11AC 1172.00 531.61 2037.00 923.97 1722.00 781.09 3412.00 1547.66 56.27 5.23 75.16 6.98 103.36 9.60 122.73 11.40

SHP-11AC6 1237.00 561.09 2127.00 964.79 1787.00 810.57 3502.00 1588.48 57.64 5.35 76.21 7.08 104.73 9.73 123.78 11.50

SHP-11BC 1855.00 841.41 2865.00 1299.54 2405.00 1090.89 4240.00 1923.23 70.75 6.57 87.46 8.13 117.86 10.95 135.05 12.55

SHP-12AC 1380.00 625.96 2340.00 1061.41 1980.00 898.11 3840.00 1741.79 64.07 5.95 85.00 7.90 115.44 10.72 136.92 12.72

SHP-12AC6 1445.00 655.44 2435.00 1104.50 2045.00 927.60 3935.00 1784.89 65.45 6.08 86.05 7.99 116.81 10.85 137.97 12.82

SHP-12BC 2015.00 913.99 3125.00 1417.48 2615.00 1186.14 4625.00 2097.86 77.15 7.17 95.36 8.86 128.51 11.94 147.28 13.68

Notes: (1) Antenna weight and wind load are approximate values for a typical structure assuming no top load. Final design loads will vary for specific projects and should be verified by an ERI representative. (2) Wind loads are calculated in accordance with the ANSI/TIA/EIA 222-F standard. Weight and effective wind area (CaAc) includes antenna, inner transmission feed and typical support mast and mounting brackets with no ice.



Mechanical Specifications

Type Number

Weight CaAa



Antenna with radome



SHP-2AE-HW 75.00 34.02 127.00 57.61 119.00 53.98 210.00 95.25 4.18 0.39 5.46 0.51 6.73 0.63 8.14 0.76

SHP-2AC-HW 156.00 70.76 260.00 117.93 244.00 110.68 426.00 193.23 8.97 0.83 12.01 1.12 14.07 1.31 17.37 1.61

SHP-2BE-HW 473.00 214.55 766.00 347.45 781.00 354.26 1286.00 583.32 24.87 2.31 37.08 3.44 42.54 3.95 55.62 5.17

SHP-2AC6-HW 186.00 84.37 307.00 139.25 274.00 124.28 476.00 215.91 10.11 0.94 13.78 1.28 15.21 1.41 19.14 1.78

SHP-2BC-HW 535.00 242.67 868.00 393.72 887.00 402.34 1462.00 663.15 28.17 2.62 42.09 3.91 48.36 4.49 63.27 5.88

SHP-2CE-HW 503.00 228.16 871.00 395.08 753.00 341.56 1496.00 678.57 19.48 1.81 24.92 2.32 40.88 3.80 46.55 4.32

SHP-3AE-HW 237.00 107.50 393.00 178.26 369.00 167.38 642.00 291.21 13.75 1.28 18.56 1.72 21.40 1.99 26.60 2.47

SHP-3AC-HW 267.00 121.11 440.00 199.58 399.00 180.98 692.00 313.89 14.89 1.38 20.33 1.89 22.54 2.09 28.37 2.64

SHP-3BE-HW 101.00 45.81 154.00 69.85 145.00 65.77 230.00 104.33 5.31 0.49 7.41 0.69 7.84 0.73 10.05 0.93

SHP-3AC6-HW 318.00 144.24 526.00 238.59 494.00 224.07 858.00 389.18 18.54 1.72 25.11 2.33 28.73 2.67 35.83 3.33

SHP-3BC-HW 659.00 298.92 1072.00 486.25 1099.00 498.50 1814.00 822.82 34.77 3.23 52.12 4.84 60.00 5.57 78.60 7.30

SHP-4AE-HW 348.00 157.85 573.00 259.91 524.00 237.68 908.00 411.86 19.68 1.83 26.88 2.50 29.87 2.78 37.60 3.49

SHP-4AC-HW 399.00 180.98 659.00 298.92 619.00 280.77 1074.00 487.16 23.32 2.17 31.66 2.94 36.06 3.35 45.06 4.19

SHP-4BE-HW 225.00 102.06 358.00 162.39 357.00 161.93 582.00 263.99 11.91 1.11 17.44 1.62 19.48 1.81 25.38 2.36

SHP-4AC6-HW 429.00 194.59 706.00 320.24 649.00 294.38 1124.00 509.84 24.46 2.27 33.43 3.11 37.20 3.46 46.83 4.35

SHP-4BC-HW 783.00 355.16 1276.00 578.78 1311.00 594.66 2166.00 982.48 41.36 3.84 62.15 5.77 71.64 6.66 93.93 8.73

SHP-4CE-HW 533.00 241.76 901.00 408.69 783.00 355.16 1526.00 692.18 20.66 1.92 26.91 2.50 42.06 3.91 48.54 4.51

SHP-5AE-HW 510.00 231.33 839.00 380.56 774.00 351.08 1340.00 607.81 29.25 2.72 39.99 3.72 44.54 4.14 56.07 5.21

SHP-5AC-HW 561.00 254.47 925.00 419.57 869.00 394.17 1506.00 683.11 32.89 3.06 44.76 4.16 50.73 4.71 63.52 5.90

SHP-5BE-HW 206.00 93.44 358.00 162.39 306.00 138.80 608.00 275.78 8.39 0.78 10.68 0.99 16.95 1.57 19.33 1.80

SHP-5AC6-HW 672.00 304.81 1105.00 501.22 1024.00 464.48 1772.00 803.77 38.82 3.61 53.09 4.93 59.20 5.50 74.53 6.92

SHP-5BC-HW 236.00 107.05 388.00 175.99 336.00 152.41 638.00 289.39 9.57 0.89 12.67 1.18 18.13 1.68 21.32 1.98

SHP-6AC-HW 723.00 327.95 1191.00 540.23 1119.00 507.57 1938.00 879.06 42.46 3.94 57.86 5.38 65.39 6.07 81.98 7.62

SHP-6AC6-HW 834.00 378.30 1371.00 621.88 1274.00 577.88 2204.00 999.72 48.39 4.50 66.19 6.15 73.87 6.86 92.99 8.64

SHP-6BC-HW 301.00 136.53 458.00 207.75 401.00 181.89 708.00 321.14 11.00 1.02 13.44 1.25 19.56 1.82 22.09 2.05

SHP-6CE-HW 598.00 271.25 976.00 442.71 848.00 384.65 1601.00 726.20 22.09 2.05 27.68 2.57 43.49 4.04 49.31 4.58

SHP-7AC-HW 885.00 401.43 1457.00 660.88 1369.00 620.97 2370.00 1075.01 52.03 4.83 70.96 6.59 80.06 7.44 100.44 9.33

SHP-7AC6-HW 996.00 451.78 1637.00 742.53 1524.00 691.27 2636.00 1195.67 57.96 5.38 79.29 7.37 88.53 8.22 111.45 10.35

SHP-7BC-HW 305.00 138.35 529.00 239.95 455.00 206.38 904.00 410.05 12.09 1.12 15.42 1.43 24.93 2.32 28.40 2.64

SHP-8AC-HW 62.00 28.12 102.00 46.27 106.00 48.08 176.00 79.83 3.08 0.29 4.59 0.43 5.61 0.52 7.24 0.67

SHP-8AC6-HW 124.00 56.25 204.00 92.53 212.00 96.16 352.00 159.66 6.38 0.59 9.60 0.89 11.43 1.06 14.90 1.38

SHP-8BC-HW 335.00 151.95 559.00 253.56 485.00 219.99 934.00 423.66 13.27 1.23 17.41 1.62 26.11 2.43 30.39 2.82

SHP-9AC-HW 163.00 73.94 256.00 116.12 251.00 113.85 406.00 184.16 8.40 0.78 12.00 1.11 13.45 1.25 17.30 1.61

SHP-9AC6-HW 186.00 84.37 306.00 138.80 318.00 144.24 528.00 239.50 9.67 0.90 14.62 1.36 17.24 1.60 22.56 2.10

SHP-9BC-HW 400.00 181.44 629.00 285.31 550.00 249.48 1004.00 455.41 14.70 1.37 18.18 1.69 27.54 2.56 31.16 2.89

SHP-10AC-HW 225.00 102.06 358.00 162.39 357.00 161.93 582.00 263.99 11.69 1.09 17.02 1.58 19.26 1.79 24.96 2.32

SHP-10AC6-HW 248.00 112.49 408.00 185.07 424.00 192.32 704.00 319.33 12.97 1.20 19.64 1.82 23.06 2.14 30.23 2.81

SHP-10BC-HW 404.00 183.25 700.00 317.51 604.00 273.97 1200.00 544.31 15.78 1.47 20.17 1.87 32.90 3.06 37.48 3.48

SHP-11AC-HW 287.00 130.18 460.00 208.65 463.00 210.01 758.00 343.82 14.99 1.39 22.03 2.05 25.08 2.33 32.62 3.03

SHP-11AC6-HW 310.00 140.61 510.00 231.33 530.00 240.40 880.00 399.16 16.27 1.51 24.65 2.29 28.88 2.68 37.89 3.52

SHP-11BCHW 434.00 196.86 730.00 331.12 634.00 287.58 1230.00 557.92 16.96 1.58 22.16 2.06 34.08 3.17 39.47 3.67

SHP-12AC-HW 349.00 158.30 562.00 254.92 569.00 258.09 934.00 423.66 18.29 1.70 27.04 2.51 30.90 2.87 40.28 3.74

SHP-12AC6-HW 411.00 186.43 664.00 301.19 675.00 306.17 1110.00 503.49 21.58 2.00 32.06 2.98 36.72 3.41 47.95 4.45

SHP-12BC-HW 499.00 226.34 805.00 365.14 699.00 317.06 1305.00 591.94 18.39 1.71 22.93 2.13 35.51 3.30 40.24 3.74






Type Number

Weight CaAa



Antenna with radome



MP-1E 75.00 34.02 127.00 57.61 119.00 53.98 210.00 95.25 4.18 0.39 5.46 0.51 6.73 0.63 8.14 0.76

MP-2C 186.00 84.37 307.00 139.25 274.00 124.28 476.00 215.91 10.11 0.94 13.78 1.28 15.21 1.41 19.14 1.78

MP-2E 156.00 70.76 260.00 117.93 244.00 110.68 426.00 193.23 8.97 0.83 12.01 1.12 14.07 1.31 17.37 1.61

MP-3C 267.00 121.11 440.00 199.58 399.00 180.98 692.00 313.89 14.89 1.38 20.33 1.89 22.54 2.09 28.37 2.64

MP-3E 237.00 107.50 393.00 178.26 369.00 167.38 642.00 291.21 13.75 1.28 18.56 1.72 21.40 1.99 26.60 2.47

MP-4C 348.00 157.85 573.00 259.91 524.00 237.68 908.00 411.86 19.68 1.83 26.88 2.50 29.87 2.78 37.60 3.49

MP-4E 318.00 144.24 526.00 238.59 494.00 224.07 858.00 389.18 18.54 1.72 25.11 2.33 28.73 2.67 35.83 3.33

MP-5C 429.00 194.59 706.00 320.24 649.00 294.38 1124.00 509.84 24.46 2.27 33.43 3.11 37.20 3.46 46.83 4.35

MP-5E 399.00 180.98 659.00 298.92 619.00 280.77 1074.00 487.16 23.32 2.17 31.66 2.94 36.06 3.35 45.06 4.19

MP-6C 510.00 231.33 839.00 380.56 774.00 351.08 1340.00 607.81 29.25 2.72 39.99 3.72 44.54 4.14 56.07 5.21

MP-7C 561.00 254.47 925.00 419.57 869.00 394.17 1506.00 683.11 32.89 3.06 44.76 4.16 50.73 4.71 63.52 5.90

MP-8C 672.00 304.81 1105.00 501.22 1024.00 464.48 1772.00 803.77 38.82 3.61 53.09 4.93 59.20 5.50 74.53 6.92

MP-9C 723.00 327.95 1191.00 540.23 1119.00 507.57 1938.00 879.06 42.46 3.94 57.86 5.38 65.39 6.07 81.98 7.62

MP-10C 834.00 378.30 1371.00 621.88 1274.00 577.88 2204.00 999.72 48.39 4.50 66.19 6.15 73.87 6.86 92.99 8.64

MP-11C 885.00 401.43 1457.00 660.88 1369.00 620.97 2370.00 1075.01 52.03 4.83 70.96 6.59 80.06 7.44 100.44 9.33

MP-12C 996.00 451.78 1637.00 742.53 1524.00 691.27 2636.00 1195.67 57.96 5.38 79.29 7.37 88.53 8.22 111.45 10.35

MP-2C-HW 172.00 78.02 285.00 129.27 260.00 117.93 454.00 205.93 8.55 0.79 11.72 1.09 13.64 1.27 17.08 1.59

MP-2E-HW 142.00 64.41 238.00 107.95 230.00 104.33 404.00 183.25 7.37 0.68 9.73 0.90 12.47 1.16 15.09 1.40

MP-3C-HW 239.00 108.41 396.00 179.62 371.00 168.28 648.00 293.93 11.74 1.09 15.99 1.49 19.37 1.80 24.03 2.23

MP-3E-HW 209.00 94.80 349.00 158.30 341.00 154.67 598.00 271.25 10.56 0.98 14.00 1.30 18.20 1.69 22.04 2.05

MP-4C-HW 306.00 138.80 507.00 229.97 482.00 218.63 842.00 381.92 14.92 1.39 20.26 1.88 25.11 2.33 30.98 2.88

MP-4E-HW 276.00 125.19 460.00 208.65 452.00 205.02 792.00 359.25 13.74 1.28 18.27 1.70 23.93 2.22 28.99 2.69

MP-5C-HW 373.00 169.19 618.00 280.32 593.00 268.98 1036.00 469.92 18.11 1.68 24.53 2.28 30.85 2.87 37.93 3.52

MP-5E-HW 343.00 155.58 571.00 259.00 563.00 255.37 986.00 447.24 16.93 1.57 22.54 2.09 29.67 2.76 35.94 3.34

MP-6C-HW 440.00 199.58 729.00 330.67 704.00 319.33 1230.00 557.92 21.29 1.98 28.80 2.68 36.58 3.40 44.88 4.17

MP-7C-HW 507.00 229.97 840.00 381.02 815.00 369.68 1424.00 645.92 24.47 2.27 33.07 3.07 42.31 3.93 51.83 4.82

MP-8C-HW 574.00 260.36 951.00 431.37 926.00 420.03 1618.00 733.91 27.66 2.57 37.34 3.47 48.05 4.46 58.78 5.46

MP-9C-HW 641.00 290.75 1062.00 481.72 1037.00 470.38 1812.00 821.91 30.85 2.87 41.61 3.87 53.79 5.00 65.73 6.11

MP-10C-HW 708.00 321.14 1173.00 532.06 1148.00 520.72 2006.00 909.91 34.04 3.16 45.88 4.26 59.52 5.53 72.68 6.75

MP-11C-HW 775.00 351.53 1284.00 582.41 1259.00 571.07 2200.00 997.90 37.23 3.46 50.15 4.66 65.25 6.06 79.63 7.40

MP-12C-HW 842.00 381.92 1395.00 632.76 1370.00 621.42 2394.00 1085.90 40.41 3.75 54.42 5.06 70.98 6.59 86.58 8.04


MP Model - Medium Power



LP Model - Low Power


Type Number

Weight CaAa



Antenna with radome



LP-1E 62.00 28.12 102.00 46.27 106.00 48.08 176.00 79.83 3.08 0.29 4.59 0.43 5.61 0.52 7.24 0.67

LP-2C 163.00 73.94 256.00 116.12 251.00 113.85 406.00 184.16 8.40 0.78 12.00 1.11 13.45 1.25 17.30 1.61

LP-2E 124.00 56.25 204.00 92.53 212.00 96.16 352.00 159.66 6.38 0.59 9.60 0.89 11.43 1.06 14.90 1.38

LP-3C 225.00 102.06 358.00 162.39 357.00 161.93 582.00 263.99 11.69 1.09 17.02 1.58 19.26 1.79 24.96 2.32

LP-3E 186.00 84.37 306.00 138.80 318.00 144.24 528.00 239.50 9.67 0.90 14.62 1.36 17.24 1.60 22.56 2.10

LP-4C 287.00 130.18 460.00 208.65 463.00 210.01 758.00 343.82 14.99 1.39 22.03 2.05 25.08 2.33 32.62 3.03

LP-4E 248.00 112.49 408.00 185.07 424.00 192.32 704.00 319.33 12.97 1.20 19.64 1.82 23.06 2.14 30.23 2.81

LP-5C 349.00 158.30 562.00 254.92 569.00 258.09 934.00 423.66 18.29 1.70 27.04 2.51 30.90 2.87 40.28 3.74

LP-5E 310.00 140.61 510.00 231.33 530.00 240.40 880.00 399.16 16.27 1.51 24.65 2.29 28.88 2.68 37.89 3.52

LP-6C 411.00 186.43 664.00 301.19 675.00 306.17 1110.00 503.49 21.58 2.00 32.06 2.98 36.72 3.41 47.95 4.45

LP-7C 473.00 214.55 766.00 347.45 781.00 354.26 1286.00 583.32 24.87 2.31 37.08 3.44 42.54 3.95 55.62 5.17

LP-8C 535.00 242.67 868.00 393.72 887.00 402.34 1462.00 663.15 28.17 2.62 42.09 3.91 48.36 4.49 63.27 5.88

LP-9C 101.00 45.81 154.00 69.85 145.00 65.77 230.00 104.33 5.31 0.49 7.41 0.69 7.84 0.73 10.05 0.93

LP-10C 659.00 298.92 1072.00 486.25 1099.00 498.50 1814.00 822.82 34.77 3.23 52.12 4.84 60.00 5.57 78.60 7.30

LP-11C 225.00 102.06 358.00 162.39 357.00 161.93 582.00 263.99 11.91 1.11 17.44 1.62 19.48 1.81 25.38 2.36

LP-12C 783.00 355.16 1276.00 578.78 1311.00 594.66 2166.00 982.48 41.36 3.84 62.15 5.77 71.64 6.66 93.93 8.73

LP-2C-HW 157.00 71.21 247.00 112.04 245.00 111.13 397.00 180.08 7.59 0.71 10.50 0.98 12.63 1.17 15.79 1.47

LP-2E-HW 118.00 53.52 195.00 88.45 206.00 93.44 343.00 155.58 5.62 0.52 8.32 0.77 10.67 0.99 13.62 1.27

LP-3C-HW 213.00 96.62 340.00 154.22 345.00 156.49 564.00 255.83 10.12 0.94 14.23 1.32 17.69 1.64 22.17 2.06

LP-3E-HW 174.00 78.93 288.00 130.63 306.00 138.80 510.00 231.33 8.15 0.76 12.05 1.12 15.73 1.46 20.00 1.86

LP-4C-HW 269.00 122.02 433.00 196.41 445.00 201.85 731.00 331.58 12.66 1.18 17.96 1.67 22.75 2.11 28.55 2.65

LP-4E-HW 230.00 104.33 381.00 172.82 406.00 184.16 677.00 307.08 10.69 0.99 15.79 1.47 20.78 1.93 26.38 2.45

LP-5C-HW 325.00 147.42 526.00 238.59 545.00 247.21 898.00 407.33 15.20 1.41 21.69 2.02 27.81 2.58 34.93 3.25

LP-5E-HW 286.00 129.73 474.00 215.00 506.00 229.52 844.00 382.83 13.23 1.23 19.52 1.81 25.84 2.40 32.76 3.04

LP-6C-HW 381.00 172.82 619.00 280.77 645.00 292.57 1065.00 483.08 17.73 1.65 25.43 2.36 32.87 3.05 41.32 3.84

LP-7C-HW 437.00 198.22 712.00 322.96 745.00 337.93 1232.00 558.83 20.26 1.88 29.17 2.71 37.93 3.52 47.71 4.43

LP-8C-HW 493.00 223.62 805.00 365.14 845.00 383.29 1399.00 634.58 22.80 2.12 32.89 3.06 42.99 3.99 54.08 5.02

LP-9C-HW 549.00 249.02 898.00 407.33 945.00 428.64 1566.00 710.33 25.34 2.35 36.61 3.40 48.05 4.46 60.45 5.62

LP-10C-HW 605.00 274.42 991.00 449.51 1045.00 474.00 1733.00 786.08 27.88 2.59 40.36 3.75 53.11 4.93 66.84 6.21

LP-11C-HW 661.00 299.82 1084.00 491.69 1145.00 519.36 1900.00 861.83 30.42 2.83 44.11 4.10 58.17 5.40 73.23 6.80

LP-12C-HW 717.00 325.23 1186.00 537.96 1245.00 564.72 2067.00 937.58 32.95 3.06 47.82 4.44 63.23 5.87 79.60 7.40Notes: (1) Antenna weight and wind load are approximate values for a typical structure assuming no top load. Final design loads will vary for specific projects and should be verified by an ERI representative. (2) Wind loads are calculated in accordance with the ANSI/TIA/EIA 222-F standard. Weight and effective wind area (CaAc) includes antenna, inner transmission feed and typical support mast and mounting brackets with no ice.



Mounting Notes

Utilize the ERI AdvantageCombine an ERI antenna with an ERI Mounting Structure, Pattern Measurement and Installation. Assure yourself of the best antenna/tower interaction. ERI’s Pattern Measurement service will provide the crucial answers concerning the relationship between the antenna mounting orientation and antenna pattern.

ERI Mounting Sections are designed to achieve optimum antenna performance while reducing weight and wind loads. Only ERI can offer you an antenna/tower/installation package that will achieve your highest expectations in a demanding FM market. Contact Electronics Research for complete electrical and mechanical specifications.



Ordering Information

Type Number Definitiona - b c d e - f - g - h

a Model: SHP, LP, MP

b Number of Bays

c Interbay Line Size: A = 3 1/8 inch, B = 4 1/8 inch, C = 6 1/8 inch

d Input Feed Configuration: E = End Fed, C = Center fed for even number of bays, off center fed for odd number of bays

e RF Input Size: Blank = 3 1/8 inch, 6 = 6 1/8 inch

f Design Note 1: Blank = Omnidirectional, DA = Directional Azimuth Pattern

g Design Note 2: Blank = Full wave length bay to bay spacing, HW = Half wave length bay to bay spacing

h Design Note 3: Blank = Standard product, SP = Special Design

Example: SHP-4AC-DA-HW

Description: ERI Model SHP ROTOTILLER FM Antenna, four bay, 4 1/8 inch interbay line, center fed, directional azimuth pattern, half wave length bay to bay spacing.

Options*

Anti-rotation brackets•Quarter wave stub •Beam tilt (center fed antennas only)•First null fill (center fed antennas only)•Second null fill (center fed antennas only); Second null •fill not available for LP antennasBeam tilt and first null fill (center fed antennas only)•Radomes•Deicers (600w/220v)•Stem heaters (300w/220v)•Export packing•

* Options available at additional cost.


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About Electronics Research, Inc.Founded in 1943, Electronics Research, Inc. delivers high quality, innovative, integrated solutions to broadcasters across the U.S. and around the world. Our dedicated staff of engineers, designers, fabricators, and project managers take pride in contributing to your success by providing AM, FM, VHF, UHF, BRS-EBS, and Mobile Media broadcast systems including the industry’s best antenna, transmission line, filter and combining, and tower and structural support systems. In addition to manufacturing the full range of broadcast system components and installation accessories, ERI offers all of the engineering and field services needed to plan, install, optimize, and maintain your broadcast facility. We are your single source for broadcast solutions.

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AGW Guided Wave Quick-Deploy Emergency UHF Television •Antenna

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ALP Low and Medium Power UHF Television Antenna•

AL PLUS Low and Medium Power UHF Television Antenna•

AL8 Low Power UHF Television Antenna•

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Documents

Rototiller Brochure