MIL-STD 461F Results for M&A Technology TUFFnote Computer Pad/EMI Cert... · 3.1.2 CE102 Results 3.1.2.1 CE102 EUT Measurement Scans CE102: 10 - 60 kHz. High side of input power

11 July 2011

MIL-STD 461F Results for

M&A Technology TUFFnote Computer

Prepared For:

Mike Lehner

M&A Technology

2045 Chenault Dr

Carrolton, TX 75006

Prepared By:

John C. Zentner

Test Engineer

Integrated Demonstrations & Applications Laboratory (IDAL)

Electromagnetic Interference (EMI) Research Laboratory

AFRL/RYWD

WPAFB, OH

Approved By:

Manuel Rodriguez, Technical Advisor

Electromagnetic Environmental Effects

Defense Systems & Electronic Sensors Branch

Engineering Directorate

Table of Contents

1.0 EXECUTIVE SUMMARY .................................................................................................... 3

1.1 References ............................................................................................................................ 3 1.2 Requirements....................................................................................................................... 3 1.3 Summary of Results ............................................................................................................ 3

2.0 GENERAL ............................................................................................................................... 4 2.1 Item Description................................................................................................................ 4

2.2 Modes of Operation .......................................................................................................... 5 2.3 Facility .............................................................................................................................. 5 2.4 Test Setups ........................................................................................................................ 5

3.0 MEASUREMENT RESULTS ............................................................................................... 6

3.1 CE102 - Conducted Emissions, Power Leads, 10 kHz to 10 MHz .................................. 6 3.1.1 CE102 Measurement Conditions ................................................................................... 6 3.1.2 CE102 Results ................................................................................................................ 8

3.1.2.1 CE102 EUT Measurement Scans................................................................................ 8 3.1.2.2 CE102 System Accuracy Scans ................................................................................ 13

3.2 RE102 - Radiated Emissions, Electric Field, 2 MHz to 18GHz .................................... 18 3.2.1 RE102 Measurement Conditions ................................................................................. 18 3.2.2 RE102 Results .............................................................................................................. 24

3.2.2.1 RE102 EUT Measurement Scans.............................................................................. 24 3.2.2.2 RE102 System Accuracy Scans ................................................................................ 36

3.2.2.3 RE102 Ambient Scans .............................................................................................. 40

1.0 Executive Summary

1.1 References

MIL-STD-461F, “Requirements for the Control of Electromagnetic Interference

Characteristics of Equipment and Subsystems,” 10 December 2007.

1.2 Requirements

The M&A Technology TUFFnote computer and FSP Group FSP065-RAB AC/DC Adapter were

evaluated with respect to the following MIL-STD-461F requirements.

CE102 - Conducted Emissions, Power Leads, 10 kHz to 10 MHz

RE102 - Radiated Emissions, Electric Fields, 2 MHz to 18 GHz

1.3 Summary of Results.

The equipment complies with the CE102 limit.

Significant RE102 emissions that alone influence where the equipment can be operated are as

follows. The TUFFnote computer with AC/DC adapter exceeds the RE102 limit for small-body

fixed-wing aircraft (< 25 meters nose-to-tail) in the 14.5 to 19 MHz and at three frequencies

between 2.4 and 4.5 MHz under battery operation. With the AC/DC adapter, the same emissions

exceed the RE102 limit for large-body fixed-wing aircraft (> 25 meters nose-to-tail) from about

15.5 to 16.5 MHz. Using either power source, the equipment has significant RE102 emissions

above the helicopter limit in the UHF radio frequency band (225 to 400 MHz).

The equipment adequately meets emission requirements for certification for use on Air Force

large-body fixed-wing Air Force aircraft when connected to aircraft 115 Volt AC power and for

all Air Force fixed-wing aircraft under internal battery operation.

2.0 General

2.1 Item Description

The equipment under test was an M&A Technology TUFFnote computer and FSP Group

FSP065-RAB AC/DC Adapter. The equipment will be used during flight. The equipment is

shown below.

TUFFnote Computer

FSP065-RAB AC/DC Adapter

2.2 Modes of Operation

The TUFFnote was turned on with the Windows Desktop displayed. Complete data scans were

taken with the computer powered by the AC/DC adapter (120 Volts, 60 Hz). Additional

measurements were accomplished under battery operation where possibly improved results were

anticipated.

2.3 Facility

The measurements were performed in a 20 foot x 18 foot x 10 foot shielding room. The room is

treated with anechoic material in accordance with MIL-STD-461F requirements. For CE102 and

RE102, test instrumentation was located in a separate shielded control room.

2.4 Test Setups

The general test setup was as shown below.

General Setup

A standard test equipment item used during all testing was a Line Impedance Stabilization

Networks (LISNs) inserted in the power leads per MIL-STD-461F. The network has two

sections, one for the high side of the power and a second for the return side.

Common Test Equipment

Manufacturer Model Function Serial # Calibration

Due Date

Fischer Custom

Communications

FCC-LISN-3 LISN 323 NCR

Hewlett Packard 3314A Function Generator 2505A05690 11/02/11

Calibration requirements and designations per the US Air Force Calibration Authority

LISNs

3.0 Measurement Results

3.1 CE102 - Conducted Emissions, Power Leads, 10 kHz to 10 MHz

3.1.1 CE102 Measurement Conditions

The TUFFnote computer and FPS065-RAB AC/DC Adapter and measurement conditions were

set up in accordance with MIL-STD-461F requirements. The instrumentation used is listed

below.

CE102 Test Equipment

Manufacturer Model Function Serial

Number

Cal Due

Hewlett Packard 8566B Spectrum Analyzer 1925A00293 9/29/11

Hewlett Packard 85685A Preselector 3506A01584 NCR

Hewlett Packard 3314A Function Generator, 50 MHz 2505A05690 11/2/11

LeCroy 452 Digitizing Oscilloscope 0301J17771 3/9/12

Aeroflex 24-20-34 20 dB Attenuator BX8763 12/30/12


NCR - No Calibration Required

Measurements were performed at the Line Impedance Stabilization Network (LISN) on each

power lead. The bandwidths and sweep times used are listed below.

Bandwidths & Sweep Times

Frequency Range

(MHz)

Resolution BW - 3 dB

(kHz)

Video BW 3 dB

(kHz)

Sweep Time

(Seconds)

0.01 - 0.06 1 3 5

0.06 - 0.15 1 3 10

0.15 - 0.6 10 30 10

0.6 - 2 10 30 12

2 - 10 10 30 20

In accordance with MIL-STD-461F, system accuracy measurements are performed prior to

testing to ensure that the measurement system will produce accurate results. Test frequencies

and voltage levels that are injected at the power lead connections to the LISNs are shown below.

The injected level is 6 dB below the MIL-STD-461F limit and is calculated as a peak-to-peak

voltage measured on an oscilloscope.

Measurement System Test

Frequency

(MHz)

Limit

(dBµV)

Limit - 6 dB

(dBµV)

Limit - 6 dB

(mV rms)

Limit - 6 dB

(mV peak-peak)

.0105 99.6 93.6 47.9 135

0.1 80 74 5 14.1

1.95 66 60 1 2.83

9.8 66 60 1 2.83

Photos of the setups at the line impedance stabilization networks are shown below.

Power Return Power High

Signal Injection for Calibration

Power Return Power High

Testing

3.1.2 CE102 Results

3.1.2.1 CE102 EUT Measurement Scans

CE102: 10 - 60 kHz. High side of input power. M&A Technology TUFFnote computer and

FSP Group FSP065-RAB AC/DC Adapter powered by 115 Volt, 60 Hz. Time of Measurement:

7/9/2011 12:45:49 PM

20

30

40

50

60

70

80

90

100

110

10 k 20 k 30 k 40 k 50 k 60 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC



7/9/2011 12:46:23 PM

10

20

30

40

50

60

70

80

90

60 k 70 k 80 k 90 k 100 k 110 k 120 k 130 k 140 k 150 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC



7/9/2011 12:47:07 PM

20

30

40

50

60

70

80

90

150 k 200 k 250 k 300 k 350 k 400 k 450 k 500 k 550 k 600 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 0.6 - 2 MHz. High side of input power. M&A Technology TUFFnote computer and


7/9/2011 12:50:38 PM

20

25

30

35

40

45

50

55

60

65

70

75

80

600 k 800 k 1000 k 1.2 M 1.4 M 1.6 M 1.8 M 2.0 M

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 2 - 10 MHz. High side of input power. M&A Technology TUFFnote computer and FSP

Group FSP065-RAB AC/DC Adapter powered by 115 Volt, 60 Hz. Time of Measurement:

7/9/2011 12:51:22 PM

10

20

30

40

50

60

70

80

2 M 3 M 4 M 5 M 6 M 7 M 8 M 9 M 10 M

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 10 - 60 kHz. Return side of input power. M&A Technology TUFFnote computer and


7/9/2011 12:53:53 PM

20

30

40

50

60

70

80

90

100

110

10 k 20 k 30 k 40 k 50 k 60 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC



7/9/2011 12:54:38 PM

0

10

20

30

40

50

60

70

80

90

60 k 70 k 80 k 90 k 100 k 110 k 120 k 130 k 140 k 150 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC



7/9/2011 12:55:30 PM

20

30

40

50

60

70

80

90

150 k 200 k 250 k 300 k 350 k 400 k 450 k 500 k 550 k 600 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 0.6 - 2 MHz. Return side of input power. M&A Technology TUFFnote computer and


7/9/2011 12:56:13 PM

20

25

30

35

40

45

50

55

60

65

70

75

80

600 k 800 k 1000 k 1.2 M 1.4 M 1.6 M 1.8 M 2.0 M

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 2 - 10 MHz. Return side of input power. M&A Technology TUFFnote computer and


7/9/2011 12:56:59 PM

20

25

30

35

40

45

50

55

60

65

70

75

80

2 M 3 M 4 M 5 M 6 M 7 M 8 M 9 M 10 M

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

3.1.2.2 CE102 System Accuracy Scans

The following scans are performed to verify the integrity of the measurement setup prior to

testing. A calibrated signal is applied at the EUT power connection at each LISN at a level that

is 6 dB below the MIL-STD-461 limit. The indicated level on the plot should be 6 dB +/- 3 dB

from the limit line.

CE102: 10 - 60 kHz, 10.5 kHz. High side of input power. Time of Measurement: 7/9/2011

12:36:52 PM

20

30

40

50

60

70

80

90

100

110

10 k 20 k 30 k 40 k 50 k 60 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 60 - 150 kHz, 100 kHz. High side of input power. Time of Measurement: 7/9/2011

12:35:06 PM

10

20

30

40

50

60

70

80

90

60 k 70 k 80 k 90 k 100 k 110 k 120 k 130 k 140 k 150 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 0.6 - 2 MHz, 1.95 MHz. High side of input power. Time of Measurement: 7/9/2011

12:33:59 PM

20

25

30

35

40

45

50

55

60

65

70

75

80

600 k 800 k 1000 k 1.2 M 1.4 M 1.6 M 1.8 M 2.0 M

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 2 - 10 MHz, 9.8 MHz. High side of input power. Time of Measurement: 7/9/2011

12:33:01 PM

20

25

30

35

40

45

50

55

60

65

70

75

80

2 M 3 M 4 M 5 M 6 M 7 M 8 M 9 M 10 M

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 10 - 60 kHz, 10.5 kHz. Return side of input power. Time of Measurement: 7/9/2011

12:28:13 PM

30

40

50

60

70

80

90

100

110

10 k 20 k 30 k 40 k 50 k 60 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 60 - 150 kHz, 100 kHz. Return side of input power. Time of Measurement: 7/9/2011

12:29:21 PM

10

20

30

40

50

60

70

80

90

60 k 70 k 80 k 90 k 100 k 110 k 120 k 130 k 140 k 150 k

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 0.6 - 2 MHz, 1.95 MHz. Return side of input power. Time of Measurement: 7/9/2011

12:30:18 PM

20

25

30

35

40

45

50

55

60

65

70

75

80

600 k 800 k 1000 k 1.2 M 1.4 M 1.6 M 1.8 M 2.0 M

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

CE102: 2 - 10 MHz, 9.8 MHz. Return side of input power. Time of Measurement: 7/9/2011

12:30:55 PM

20

25

30

35

40

45

50

55

60

65

70

75

80

2 M 3 M 4 M 5 M 6 M 7 M 8 M 9 M 10 M

Frequency (Hz)

Level (d

Bµ

V)

Peak CE102 115VAC

18

3.2 RE102 - Radiated Emissions, Electric Field, 2 MHz to 18GHz

3.2.1 RE102 Measurement Conditions

The TUFFnote computer and FPS065-RAB AC/DC Adapter and the measurement conditions

were set up in accordance with MIL-STD-461F requirements. The instrumentation used is listed

below.

RE102 Test Equipment

Manufacturer Model Function Serial # Cal Due

Date

Hewlett Packard 8566B Spectrum Analyzer 1925A00293 9/29/11

Hewlett Packard 85685A Preselector 3506A01584 NCR

Miteq AFS42-

01001800-43-

10P-42-L

Preamplifier 1589785 NCR

ETS Lindgren 3301B Rod Antenna 42919 NPC

EMCO 3109 Biconical Antenna 9603-2951 ICO

EMCO 3106 Double Ridge Guide

Ant

2207 NPC

EMCO 3115 Double Ridge Guide

Ant

2177 NCR

Hewlett Packard 8642B Signal Generator 2647A01001 3/30/12

Hewlett Packard 8763E Signal Generator 2821A00442 11/12/11

Electro-Metrics EM-6888 Stub Radiator 790115 NCR


NCR - No Calibration Required

NPC - No Periodic Calibration Required

ICO - Initial Calibration Only Required

All antennas were positioned 1 meter from the EUT. Measurements above 30 MHz were

performed in both vertical and horizontal antenna polarity positions. The bandwidths and sweep

times used are listed below.

Bandwidths & Sweep Times

Frequency Band

(MHz)

Resolution BW -

3 dB (kHz)

Video BW - 3 dB

(kHz)

Sweep Times

(Seconds)

Number of

Sweeps

0.01 - 0.15 1 3 4 1

0.15 - 2 10 30 6 1

2 – 8 10 30 9 1

8 - 30 10 30 33 1

30 - 90 100 300 9 1

90 - 120 100 300 4.5 1

120 - 200 100 300 12 1

200 - 400 100 300 30 1

19

400 - 1000 100 300 90 1

1000 - 2000 1000 3000 15 1

2000 - 4000 1000 3000 30 1

4000 - 8000 1000 3000 60 1

8000 - 12000 1000 3000 60 1

12000 - 18000 1000 3000 90 1

Commercial software is used for testing. The program is Dare Development’s RadiMation

package, Version 5.6.9. The antennas factors for the measurement antennas as stored in the

software are shown below.

EMCO 3301B Monopole EMCO 3109 Biconical

20

EMCO 3106 Double Ridge Guide EMCO 3115 Double Ridge Guide

The cable loss from the antenna to the measurement receiver as stored in the software is shown

below. The loss was measured using a signal source and power meter. A reference level was

first established on the power meter at each frequency. The entire cable was then inserted and

the power level again measured. The difference is the cable loss.

Cable Loss - Semflex Coax

A preamplifier is used between 1 and 18 GHz to improve the sensitivity of the measurement

system. The gain as stored in the software is shown below.

21

Miteq 1589785 Gain, 1 to 18 GHz

Information used to determine the drive level for system accuracy scans is shown below. The

limit that is used is for RE102 small-fixed wing, aircraft applications. Injected levels in dBm are

calculated as follows:

Frequency

(MHz)

A B = A - 6 C D = B - C E = D - 107

Remarks Limit

(dBuV/m)

Limit less

6 dB

(dBuV/m)

Antenna

Factor

(dB/m)

Injected

Level

(dBuV)

Injected

Level

(dBm)

2.1 34.0 28.0 6 22.0 -85 Antenna factor for signal injection

purposes is 1/2 m height of rod

12 34.0 28.0 6 22.0 -85 Antenna factor for signal injection


29.5 34.0 28.0 6 22.0 -85 Antenna factor for signal injection


197 39.9 33.9 13.8 20.1 -86.9

990 53.9 47.9 22.4 25.5 -81.5

1950 59.8 53.8 27.3 26.5 - 80.5

17500 78.9 72.9 41.7 31.2 -75.8

Photos of setups with the various antennas are shown below.

22

Rod Antenna, 2 to 30 MHz

Vertical Polarization Horizontal Polarization

Biconical Antenna, 30 to 200 MHz

23


Double Ridge Guide Antenna, 200 to 1000 MHz


Double Ridge Guide Antenna, 1 to 18 GHz

24

3.2.2 RE102 Results

3.2.2.1 RE102 EUT Measurement Scans

RE102: 2 - 8 MHz. M&A Technology TUFFnote computer and FSP Group FSP065-RAB

AC/DC Adapter powered by 115 Volt, 60 Hz. Time of Measurement: 7/11/2011 11:43:25 AM

0

5

10

15

20

25

30

35

40

45

50

2 M 3 M 4 M 5 M 6 M 7 M 8 M

Frequency (Hz)

Level (d

Bµ

V/m

)

Peak Fixed-Wing Aircraft >= 25 m Nose-to-Tail Fixed-Wing Aircraft < 25 m Nose-to-Tail Helicopter

RE102: 8 - 30 MHz. M&A Technology TUFFnote computer and FSP Group FSP065-RAB

AC/DC Adapter powered by 115 Volt, 60 Hz. Time of Measurement: 7/11/2011 11:44:13 AM

0

5

10

15

20

25

30

35

40

45

50

55

60

10 M 15 M 20 M 25 M 30 M8.0 M

Frequency (Hz)

Level (d

Bµ

V/m

)


25

RE102: 2 - 8 MHz. M&A Technology TUFFnote computer operating on internal batteries.

Time of Measurement: 7/11/2011 11:47:02 AM

0

5

10

15

20

25

30

35

40

45

50

2 M 3 M 4 M 5 M 6 M 7 M 8 M

Frequency (Hz)

Level (d

Bµ

V/m

)


RE102: 8 - 30 MHz. M&A Technology TUFFnote computer operating on internal batteries.

Time of Measurement: 7/11/2011 11:47:49 AM

0

5

10

15

20

25

30

35

40

45

50

10 M 15 M 20 M 25 M 30 M8.0 M

Frequency (Hz)

Level (d

Bµ

V/m

)


26

RE102: 30 - 90 MHz. Antenna polarity: Vertical. M&A Technology TUFFnote computer and


7/11/2011 6:52:55 AM

0

5

10

15

20

25

30

35

40

45

50

30 M 40 M 50 M 60 M 70 M 80 M 90 M

Frequency (Hz)

Level (d

Bµ

V/m

)Peak Fixed-Wing Aircraft >= 25 m Nose-to-Tail Fixed-Wing Aircraft < 25 m Nose-to-Tail Helicopter

RE102: 30 - 90 MHz. Antenna polarity: Horizontal. M&A Technology TUFFnote computer

and FSP Group FSP065-RAB AC/DC Adapter powered by 115 Volt, 60 Hz. Time of

Measurement: 7/11/2011 6:49:56 AM

0

5

10

15

20

25

30

35

40

45

50

30 M 40 M 50 M 60 M 70 M 80 M 90 M

Frequency (Hz)

Level (d

Bµ

V/m

)


27



7/11/2011 6:53:38 AM

0

5

10

15

20

25

30

35

40

45

50

55

60

90 M 95 M 100 M 105 M 110 M 115 M 120 M

Frequency (Hz)

Level (d

Bµ

V/m




Measurement: 7/11/2011 6:50:41 AM

0

5

10

15

20

25

30

35

40

45

50

55

60

90 M 95 M 100 M 105 M 110 M 115 M 120 M

Frequency (Hz)

Level (d

Bµ

V/m

)


28



7/11/2011 6:54:23 AM

0

5

10

15

20

25

30

35

40

45

50

55

60

120 M 130 M 140 M 150 M 160 M 170 M 180 M 190 M 200 M

Frequency (Hz)

Level (d

Bµ

V/m




Measurement: 7/11/2011 6:51:16 AM

0

5

10

15

20

25

30

35

40

45

50

55

60

120 M 130 M 140 M 150 M 160 M 170 M 180 M 190 M 200 M

Frequency (Hz)

Level (d

Bµ

V/m

)


29



7/9/2011 3:04:47 PM

10

15

20

25

30

35

40

45

50

55

60

65

70

200 M 250 M 300 M 350 M 400 M

Frequency (Hz)

Level (d

Bµ

V/m




Measurement: 7/9/2011 2:59:31 PM

10

15

20

25

30

35

40

45

50

55

60

65

70

200 M 250 M 300 M 350 M 400 M

Frequency (Hz)

Level (d

Bµ

V/m

)


30

RE102: 400 - 1000 MHz. Antenna polarity: Vertical. M&A Technology TUFFnote computer



10

15

20

25

30

35

40

45

50

55

60

65

70

400 M 500 M 600 M 700 M 800 M 900 M 1000 M

Frequency (Hz)

Level (d

Bµ

V/m


RE102: 400 - 1000 MHz Hor. Antenna polarity: Horizontal. M&A Technology TUFFnote

computer and FSP Group FSP065-RAB AC/DC Adapter powered by 115 Volt, 60 Hz. Time of


10

15

20

25

30

35

40

45

50

55

60

65

70

400 M 500 M 600 M 700 M 800 M 900 M 1000 M

Frequency (Hz)

Level (d

Bµ

V/m

)


31

RE102: 1 - 2 GHz. Antenna polarity: Vertical. M&A Technology TUFFnote computer and FSP


7/11/2011 8:22:32 AM

20

25

30

35

40

45

50

55

60

65

70

75

80

1000 M 1.2 G 1.4 G 1.6 G 1.8 G 2.0 G

Frequency (Hz)

Level (d

Bµ

V/m


RE102: 1 - 2 GHz. Antenna polarity: Horizontal. M&A Technology TUFFnote computer and


7/11/2011 8:24:36 AM

30

35

40

45

50

55

60

65

70

75

80

1000 M 1.2 G 1.4 G 1.6 G 1.8 G 2.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


32



7/11/2011 9:20:17 AM

30

35

40

45

50

55

60

65

70

75

80

85

90

2.0 G 2.5 G 3.0 G 3.5 G 4.0 G

Frequency (Hz)

Level (d

Bµ

V/m




7/11/2011 9:29:38 AM

20

30

40

50

60

70

80

90

2.0 G 2.5 G 3.0 G 3.5 G 4.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


33



7/11/2011 9:21:14 AM

30

35

40

45

50

55

60

65

70

75

80

85

90

4.0 G 4.5 G 5.0 G 5.5 G 6.0 G 6.5 G 7.0 G 7.5 G 8.0 G

Frequency (Hz)

Level (d

Bµ

V/m




7/11/2011 9:30:37 AM

30

35

40

45

50

55

60

65

70

75

80

85

90

4.0 G 4.5 G 5.0 G 5.5 G 6.0 G 6.5 G 7.0 G 7.5 G 8.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


34

RE102: 8 - 12 GHz. Antenna polarity: Vertical. M&A Technology TUFFnote computer and


7/11/2011 9:22:54 AM

40

45

50

55

60

65

70

75

80

85

90

95

100

8.0 G 8.5 G 9.0 G 9.5 G 10.0 G 10.5 G 11.0 G 11.5 G 12.0 G

Frequency (Hz)

Level (d

Bµ

V/m




7/11/2011 9:32:15 AM

40

45

50

55

60

65

70

75

80

85

90

95

100

8.0 G 8.5 G 9.0 G 9.5 G 10.0 G 10.5 G 11.0 G 11.5 G 12.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


35

RE102: 12 - 18 GHz. Antenna polarity: Vertical. M&A Technology TUFFnote computer and


7/11/2011 9:24:30 AM

40

45

50

55

60

65

70

75

80

85

90

95

100

12.0 G 13.0 G 14.0 G 15.0 G 16.0 G 17.0 G 18.0 G

Frequency (Hz)

Level (d

Bµ

V/m




7/11/2011 9:27:06 AM

40

45

50

55

60

65

70

75

80

85

90

95

100

12.0 G 13.0 G 14.0 G 15.0 G 16.0 G 17.0 G 18.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


36

3.2.2.2 RE102 System Accuracy Scans

The following scans are performed to verify the integrity of the measurement setup prior to

testing. A calibrated signal is applied at the antenna connection that is equivalent to a level that

is 6 dB below the MIL-STD-461 limit. The indicated level on the plot should be 6 dB +/- 3 dB

from the limit line.

RE102: 2 - 8 MHz, 2.1 MHz. System accuracy. The indicated level on the plot should be 6 dB

+/- 3 dB from the limit line. Time of Measurement: 7/11/2011 11:11:51 AM

0

5

10

15

20

25

30

35

40

2 M 3 M 4 M 5 M 6 M 7 M 8 M

Frequency (Hz)

Level (d

Bµ

V/m

)

Peak Fixed-Wing Aircraft < 25 m Nose-to-Tail

37

RE102: 8 - 30 MHz, 12 MHz. System accuracy. The indicated level on the plot should be 6 dB


0

5

10

15

20

25

30

35

40

10 M 15 M 20 M 25 M 30 M8.0 M

Frequency (Hz)

Level (d

Bµ

V/m

)


RE102: 8 - 30 MHz, 29.5 MHz. System accuracy. The indicated level on the plot should be 6

dB +/- 3 dB from the limit line. Time of Measurement: 7/11/2011 11:13:31 AM

-10

-5

0

5

10

15

20

25

30

35

40

10 M 15 M 20 M 25 M 30 M8.0 M

Frequency (Hz)

Level (d

Bµ

V/m

)


38

RE102: 120 - 200 MHz, 197 MHz. System accuracy. The indicated level on the plot should be

6 dB +/- 3 dB from the limit line. Time of Measurement: 7/11/2011 6:42:55 AM

0

5

10

15

20

25

30

35

40

45

50

120 M 130 M 140 M 150 M 160 M 170 M 180 M 190 M 200 M

Frequency (Hz)

Level (d

Bµ

V/m

)


RE102: 400 - 1000 MHz, 990 MHz. System accuracy. The indicated level on the plot should be

6 dB +/- 3 dB from the limit line. Time of Measurement: 7/9/2011 3:20:22 PM

10

15

20

25

30

35

40

45

50

55

60

400 M 500 M 600 M 700 M 800 M 900 M 1000 M

Frequency (Hz)

Level (d

Bµ

V/m

)


39

RE102: 1 - 2 GHz, 1.95 GHz. System accuracy. The indicated level on the plot should be 6 dB


20

25

30

35

40

45

50

55

60

65

70

1000 M 1.2 G 1.4 G 1.6 G 1.8 G 2.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


RE102: 12 - 18 GHz, 17.5 GHz. System accuracy. The indicated level on the plot should be 6

dB +/- 3 dB from the limit line. Time of Measurement: 7/11/2011 8:26:38 AM

40

45

50

55

60

65

70

75

80

85

90

12.0 G 13.0 G 14.0 G 15.0 G 16.0 G 17.0 G 18.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


40

3.2.2.3 RE102 Ambient Scans

The following scans are performed to measure the conditions in the shielded room with the EUT

turned off. Measured levels should be at least 6 dB below the MIL-STD-461 limit.

RE102: 2 - 30 MHz Ambient. Time of Measurement: 7/11/2011 11:15:24 AM

0

5

10

15

20

25

30

35

40

45

50

5 M 10 M 15 M 20 M 25 M 30 M2.0 M

Frequency (Hz)

Level (d

Bµ

V/m

)


41

RE102: 30 - 200 MHz Ambient. Antenna polarity: Vertical. Time of Measurement: 7/11/2011

6:44:30 AM

0

5

10

15

20

25

30

35

40

45

50

55

60

60 M 80 M 100 M 120 M 140 M 160 M 180 M 200 M30 M

Frequency (Hz)

Level (d

Bµ

V/m

)


RE102: 30 - 200 MHz Ambient. Antenna polarity: Horizontal. Time of Measurement:

7/11/2011 6:45:54 AM

0

5

10

15

20

25

30

35

40

45

50

55

60

60 M 80 M 100 M 120 M 140 M 160 M 180 M 200 M30 M

Frequency (Hz)

Level (d

Bµ

V/m

)


42

RE102: 200 - 1000 MHz Ambient. Antenna polarity: Vertical. Time of Measurement: 7/9/2011

3:13:40 PM

0

10

20

30

40

50

60

70

200 M 300 M 400 M 500 M 600 M 700 M 800 M 900 M 1000 M

Frequency (Hz)

Level (d

Bµ

V/m

)


RE102: 200 - 1000 MHz Ambient. Antenna polarity: Horizontal. Time of Measurement:

7/9/2011 3:17:14 PM

0

10

20

30

40

50

60

70

200 M 300 M 400 M 500 M 600 M 700 M 800 M 900 M 1000 M

Frequency (Hz)

Level (d

Bµ

V/m

)


43

RE102: 1 - 2 GHz Ambient. Antenna polarity: Vertical. Time of Measurement: 7/11/2011

7:46:44 AM

20

25

30

35

40

45

50

55

60

65

70

75

80

1000 M 1.2 G 1.4 G 1.6 G 1.8 G 2.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


RE102: 1 - 2 GHz Ambient. Antenna polarity: Horizontal. Time of Measurement: 7/11/2011

7:47:57 AM

20

25

30

35

40

45

50

55

60

65

70

75

80

1000 M 1.2 G 1.4 G 1.6 G 1.8 G 2.0 G

Frequency (Hz)

Level (d

Bµ

V/m

)


44

RE102: 2 - 18 GHz Amb. Antenna polarity: Vertical. Time of Measurement: 7/11/2011 9:16:24

AM

30

40

50

60

70

80

90

100

2 G 4 G 6 G 8 G 10 G 12 G 14 G 16 G 18 G

Frequency (Hz)

Level (d

Bµ

V/m

)


RE102: 2 - 18 GHz. Antenna polarity: Horizontal. Time of Measurement: 7/11/2011 9:04:49

AM

30

40

50

60

70

80

90

100

2 G 4 G 6 G 8 G 10 G 12 G 14 G 16 G 18 G

Frequency (Hz)

Level (d

Bµ

V/m

)


Documents

MIL-STD 461F Results for M&A Technology TUFFnote Computer Pad/EMI Cert... · 3.1.2 CE102 Results 3.1.2.1 CE102 EUT Measurement Scans CE102: 10 - 60 kHz. High side of input power