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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report

Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report

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Overview: This document is a comprehensive test report on the electromagnetic compatibility (EMC) of a Waterproof Scissor Switch Keyboard, model K-TEK-V285-FN-BL-FC-SC-NV-151B-DWP+TP65-DML+2K, manufactured by Key Technology Rugged System Ltd. The report, conducted by GRG Metrology & Test Group Co., Ltd., spans 127 pages and details the results of various EMC tests performed between November 27, 2025, and December 19, 2025.

Test Specifications: The tests were conducted according to the GJB151B-2013 standards, which outline electromagnetic emission and susceptibility requirements for military equipment and subsystems. The tests included conducted emissions (CE101, CE102), conducted susceptibility (CS101, CS106, CS112, CS114, CS115, CS116), radiated emissions (RE101, RE102), and radiated susceptibility (RS101, RS103).

Test Results: All tests were passed successfully. Key results include:

CE101: Conducted emissions on power leads from 25Hz to 10kHz passed with no exceedance of limits.
CE102: Conducted emissions from 10kHz to 10MHz also passed.
CS101: Conducted susceptibility on power leads from 25Hz to 150kHz passed.
CS106: Transient susceptibility on power leads passed.
CS112: Electrostatic discharge susceptibility passed.
CS114: Bulk cable injection from 4kHz to 400MHz passed.
CS115 and CS116: Impulse excitation and damped sinusoidal transients passed.
RE101 and RE102: Radiated emissions for magnetic and electric fields passed.
RS101 and RS103: Radiated susceptibility for magnetic and electric fields passed.

Test Conditions: The tests were conducted in a controlled environment with a temperature of 24.3°C and humidity of 48.8% RH. The equipment was powered by a DC 5V supply during testing.

Conclusion: The Waterproof Scissor Switch Keyboard met all the electromagnetic compatibility requirements as per the GJB151B-2013 standards, indicating its suitability for use in environments requiring strict EMC compliance.

Introduction: This document is a technical report from GRG Metrology & Test Group Co., Ltd., detailing the conducted emissions and susceptibility tests performed on a Waterproof Scissor Switch Keyboard, model K-TEK-V285-FN-BL-FC-SC-NV-151B-DWP+TP65-DML+2K. The tests were conducted to ensure compliance with the GJB151B-2013 standard.

Test Specifications: The tests covered various frequency ranges and conditions, including CE101, CE102, CS101, and CS106. The environmental conditions during testing were a temperature of 24.3℃ and humidity of 48.8%RH, with a power supply voltage of DC 5.0V.

CE101 Test Results: Conducted emissions were measured from 2.5E-05 to 0.01MHz. The results showed that all readings were below the limit of 95 dBuA, with margins ranging from 42.32 dB to 63.12 dB, indicating a pass.

CE102 Test Results: Conducted emissions were measured from 0.01 to 10MHz. The results showed that all readings were below the specified limits, with margins ranging from 12.53 dB to 48.73 dB, indicating a pass.

CS101 Test Results: Conducted susceptibility tests were performed from 25Hz to 150kHz. The equipment maintained normal operation throughout the test, indicating compliance with the standard.

CS106 Test Results: Conducted susceptibility tests for transients were performed, with a peak pulse voltage of 400V and a pulse width of 5.0 μs. The equipment passed the test, maintaining normal operation.

Conclusion: All tests conducted on the Waterproof Scissor Switch Keyboard model K-TEK-V285-FN-BL-FC-SC-NV-151B-DWP+TP65-DML+2K met the standard requirements, and the equipment was found to be compliant with the GJB151B-2013 standard.

Introduction: This document details the testing procedures and results for the Waterproof Scissor Switch Keyboard, model K-TEK-V285-FN-BL-FC-SC-NV-151B-DWP+TP65-DML+2K, conducted by GRG Metrology & Test Group Co., Ltd. The tests include transient generator calibration, electrostatic discharge susceptibility, and conducted susceptibility.

CS106 Transient Generator Calibration: The test involved applying transient pulses to the keyboard's ungrounded input lines at a rate of 8 pulses per second for 5 minutes. The keyboard showed abnormal communication during the test but returned to normal functionality afterward. The test was concluded with a note to record but not assess the results.

CS112 Electrostatic Discharge Susceptibility: The keyboard was subjected to contact and air discharge tests at various voltages (±2kV to ±15kV). The keyboard maintained normal communication with the test computer throughout the tests, indicating compliance with performance standards. The test was concluded with a pass.

CS114 Conducted Susceptibility: The test covered a frequency range from 4kHz to 400MHz. The keyboard was tested in a shielded room with various power cables. The test results showed that the keyboard maintained normal communication with the test computer before, during, and after the tests, leading to a pass conclusion.

Conclusion: All tests were conducted according to standard procedures, and the keyboard passed the electrostatic discharge and conducted susceptibility tests, demonstrating its robustness under specified conditions.

Introduction: The document is a technical report from GRG Metrology & Test Group Co., Ltd, detailing the conducted susceptibility and radiated emissions tests on a waterproof scissor switch keyboard model K-TEK-V285-FN-BL-FC-SC-NV-151B-DW P+TP65-DML+2K.

Conducted Susceptibility Test (CS116):

Test Setup: Conducted in a shielded room with environmental conditions of 23.1℃ temperature and 41% humidity. The power supply voltage was DC 5.0V.
Frequency Range: 10kHz to 100MHz.
Test Equipment: Included a high-frequency damped sine wave generator, oscilloscope, multimeter, and other calibrated devices.
Procedure: The test involved applying damped sinusoidal transient signals to the EUT's cables and power leads, monitoring for performance degradation.
Results: The keyboard maintained normal communication with the test computer throughout the test, indicating a pass.

Radiated Emissions Test (RE101):

Test Setup: Conducted in an anechoic chamber with environmental conditions of 22.4℃ temperature and 38% humidity. The EUT was powered by instruments.
Frequency Range: 25Hz to 100kHz.
Test Equipment: Included an anechoic chamber, receiver, loop antenna, and function/waveform generator.
Procedure: The test involved applying a calibrated signal level and verifying the measurement receiver's accuracy within ±3 dB of the injected signal level.
Results: The test system met the standard requirements, indicating a pass.

Conclusion: The tests conducted on the waterproof scissor switch keyboard model K-TEK-V285-FN-BL-FC-SC-NV-151B-DW P+TP65-DML+2K were successful, with all systems meeting the required standards and no performance degradation observed during testing.

Test Overview: The document details the testing procedures and results for a Waterproof Scissor Switch Keyboard, model K-TEK-V285-FN-BL-FC-SC-NV-151B-DWP+TP65-DML+2K, conducted by GRG Metrology & Test Group Co., Ltd. The tests were performed to ensure compliance with the GJB151B-2013 standard, focusing on radiated emissions (RE101 and RE102 tests).

RE101 Test Summary:

The test involved measuring emissions from the Equipment Under Test (EUT) at various positions (front, left, back, right, top, and bottom).
The loop sensor was positioned 7 cm from the EUT, and measurements were taken across a specified frequency range.
All test positions passed, with results showing emissions below the specified limits.
Key frequencies and their respective readings, correction factors, results, limits, and margins were documented, indicating compliance.

RE102 Test Summary:

The test was conducted in a 5# Anechoic Chamber, covering a frequency range from 10kHz to 18GHz.
Measurements were taken for both vertically and horizontally polarized fields, ensuring comprehensive coverage.
Test results for various frequency bands (0.01 - 30MHz and 30 - 200MHz) showed compliance, with all readings within the specified limits.
Detailed data for each frequency, including reading, correction factor, result, limit, and margin, confirmed the EUT's adherence to standards.

Conclusion: The Waterproof Scissor Switch Keyboard passed all tests, demonstrating compliance with the GJB151B-2013 standard. The EUT remained intact and functional throughout the testing process.

Overview: The document details the electromagnetic compatibility testing of the K-TEK-V285-FN-BL-FC-SC-NV-151B-DWP+TP65-DML+2K waterproof scissor switch keyboard. The tests were conducted by GRG Metrology & Test Group Co., Ltd. to ensure compliance with the GJB151B-2013 standard.

Test Specifications: The tests covered frequency ranges from 30 MHz to 18 GHz, with specific attention to radiated emissions (RE102) and radiated susceptibility (RS101). The tests were conducted in both vertical and horizontal positions.

Test Results:

30 - 200 MHz: All readings were below the limit, with margins ranging from 11.07 dB to 27.74 dB, indicating compliance.
200 - 1000 MHz: The results showed significant margins, with the smallest margin being 19.64 dB, ensuring compliance.
1000 - 18000 MHz: The tests also passed with margins ranging from 19.03 dB to 25.68 dB.

RS101 Test: The RS101 test for radiated susceptibility was conducted from 25 Hz to 100 kHz. The equipment under test (EUT) maintained normal operation throughout the test, indicating compliance.

Conclusion: The keyboard model K-TEK-V285-FN-BL-FC-SC-NV-151B-DWP+TP65-DML+2K passed all tests, demonstrating compliance with the GJB151B-2013 standard. The tests confirmed that the keyboard operates normally under the specified electromagnetic conditions.

Overview: The document is a technical report from GRG Metrology & Test Group Co., Ltd, detailing the testing of a Waterproof Scissor Switch Keyboard, model K-TEK-V285-FN-BL-F. The tests were conducted to ensure compliance with the GJB151B-2013 standard.

Test Specifications: The tests were conducted under environmental conditions of approximately 22.1℃ and 67% relative humidity. The equipment under test (EUT) was powered by instruments and tested in various positions including under side, left side, right side, front side, and back side (electrical connector).

Test Procedures: The tests included RS101 and RS103 radiated susceptibility tests across different frequency ranges (10kHz to 40GHz). The RS101 test was conducted from 2.5E-05 to 0.1MHz, while the RS103 test covered 10kHz to 40GHz. The tests involved setting up the EUT in an anechoic chamber, using signal generators, power amplifiers, and various antennas to establish electric fields and measure the EUT's response.

Test Results: All tests resulted in a 'Pass' status, indicating that the keyboard maintained normal operation throughout the testing process. The keyboard communicated normally with the test computer, and no degradation in performance was observed.

Equipment Used: The testing utilized a range of equipment including multi-purpose compact anechoic chambers, signal generators, power amplifiers, and electric-field sensors from manufacturers such as Agilent, RFLIGHT, and Schwarzbeck. Calibration of the equipment was up-to-date, ensuring accurate test results.

Conclusion: The Waterproof Scissor Switch Keyboard successfully passed all conducted tests, demonstrating compliance with the specified standards. The appearance of the EUT remained intact, and it functioned normally before, during, and after the tests.

Test Specifications and Equipment:
The document outlines the testing procedures for electromagnetic compatibility (EMC) across various frequency ranges from 1MHz to 40GHz. The main test equipment includes a multi-purpose compact anechoic chamber, signal generators, power amplifiers, horn antennas, electric-field sensors, and power meters, all calibrated and listed with their respective models and manufacturers.

Test Procedures:
The test setup involves maintaining a basic configuration for the Equipment Under Test (EUT), stabilizing the equipment, and recording the amplitude on the electric field sensor. The signal source is set to a 1 kHz pulse modulation with a 50% duty cycle. The electric field is gradually increased to the applicable limit, and the frequency range is scanned to record input power levels. The EUT is monitored for performance degradation during testing.

Test Results:
The EUT maintained normal operation throughout the tests, with the keyboard communicating effectively with the test computer. The tests were conducted in both horizontal and vertical antenna polarizations across various frequency bands, and the EUT passed all tests.

Frequency Bands and Polarizations:
The document provides detailed frequency bands and their corresponding antenna polarizations, including vertical and horizontal orientations from 10kHz to 40GHz.

Appendices:
Several appendices provide photos of the test arrangement, the EUT, assistive equipment, and monitoring setups. There is also an EMC test status confirmation form included.

Conclusion:
The EUT passed all EMC tests, confirming compliance with the required standards.

Catalog excerpts

Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-1

中国认可国际互认检测 TESTING CNAS L0446 Electromagnetic compatibility TEST REPORT Total Sample Description : Waterproof Scissor Switch Keyboard K-TEK-V285-FN-BL-FC-SC-NV-151B-DW P+TP65-DML+2K V285-FN-BL-FC-SC-NV-151B-DWP+TP65-DML+2K: 20251011000004 : Key Technology Rugged System Ltd Manufacturer : Key Technology Rugged System Ltd Test Type : Commissioning Test

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-2

GRG Metrology & Test Group Co.,Ltd. Address: China guangzhou tianhe huangpu avenue xiping cloud road no. 163 Telephone: +86-020-38699959 Facsimile: +86-020-38698685 http://www.grgtest.com

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-3

GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun Road, Panyu District, Guangzhou, Guangdong, China. Telephone: +86-020-38699959 Facsimile: +86-020-38698685 http://www.grgtest.com

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-4

GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun Road, Panyu District, Guangzhou, Guangdong, China. Teleohone: +86-020-38699959 Facsimile: +86-020-38698685 httD://www.eretest.com

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-5

1. This station carries out test task according to the national regulation of verifications which can be traced to National Primary Standards and BIPM. 2. The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. 3. If there is any objection concerning the test, the client should inform the laboratory within 15 days from the date of receiving the test report. GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun Road, Panyu District, Guangzhou, Guangdong, China. Telephone: +86-020-38699959...

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-6

3.8 CS116, conducted susceptibility, damped sinusoidal transients, cables and power GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun Road, Panyu District, Guangzhou, Guangdong, China. Telephone: +86-020-38699959 Facsimile: +86-020-38698685 http://www.grgtest.com

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-7

GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun Road, Panyu District, Guangzhou, Guangdong, China. Telephone: +86-020-38699959 Facsimile: +86-020-38698685 http://www.grgtest.com

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-8

2. EUT and Auxiliary Equipment Connection Diagram. 3. Power Supply：Working State 2：DC 5V, Working State 1：EUT is powered by instruments 4. Test Mode NO. Working State Description ofWorking State The test computer was powered and the communication was normal. After powering on, the test specimen DC5V establishes normal communication with the test computer. Remark The client has designated the following test items: CS112、RE101、RE102、 RS101、RS103. The client has designated the following test items: CE101、CE102、CS101、 CS106、CS114、CS115、CS116. 5. Monitoring Method for Immunity Tests Target Monitoring...

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-9

3 Test project situation and results3.1 CE101, conducted emissions,power leads,25Hz to 10kHz EUT name Test Position Power Supply Test requirements/limits: Table CE102-1 Limit Value Main test equipment: GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun Road, Panyu District, Guangzhou, Guangdong, China. Telephone: +86-020-38699959 Facsimile: +86-020-38698685 http://www.grgtest.com

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-10

Anechoic Chamber Test software: Test system test results meet the standard requirements: Pass Test position: Positive power cab^ Negative power cable. Test configuration Test Procedure: a> The test equipment is powered on for preheating and reaches a stable operating state; K Perform the verification by applying 1kHz, 3kHz, and 10kHz verification signals to the current probe, with the signal level being 6dB below the standard limit value; c> Measure the current level using an oscilloscope and a resistor, while checking if the current GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun...

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-11

waveform is a sine wave; d^ The measurement receiver scans in the normal data scanning mode, confirming that the measurement value of the measurement receiver is within the ±3dB range of the oscilloscope current measurement value. If the measurement value deviates by more than ±3dB, the error cause must be identified and corrected. e> Configure the test according to Figure CE101-2; f The test sample is powered on for preheating to achieve a stable operating condition; g^ Select a power cord and clip the current probe onto the power line to be tested; h Using the bandwidth and minimum measurement...

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-12

Note: Result = Reading + Correct factor, Margin = Limit - Result GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun Road, Panyu District, Guangzhou, Guangdong, China. Telephone: +86-020-38699959 Facsimile: +86-020-38698685 http://www.grgtest.com

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-13

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-14

3.2 CE102, conducted emissions,power leads,10kHz to 10MHz EUT name Test Position Power Supply Test requirements/limits: Table CE102-1 Limit Value GRG Metrology & Test Group Co.,Ltd Address: No.8, Chuangyun Road, Panyu District, Guangzhou, Guangdong, China. Telephone: +86-020-38699959 Facsimile: +86-020-38698685 http://www.grgtest.com

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-15

Anechoic Chamber Test software: Test system test results meet the standard requirements: Pass Test Position: Positive power cablex Negative power cable. Test configuration: Test Procedure: a> Turn on the measurement equipment and allow a sufficient time for stabilization. bx Apply a signal level that is at least 6 dB below the limit at 10 kHz, 100 kHz, 2MHz and 10 MHz to the power output terminal of the LISN. At 10 kHz and 100kHz, use an oscilloscope to calibrate the signal level and verify that it is sinusoidal. cx Scan the measurement receiver for each frequency in the same manner as a normal...

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Scissor Switch Keyboard - GJB151B-2013 & MIL-STD-461G Test Report-16

Verify that the measurement receiver indicates a level within. d^ Repeat b through c for each LISN. e> Maintain a basic test setup for the EUT as shown and described in Figures CE102-2. f Turn on the EUT and allow a sufficient time for stabilization. g^ Select an appropriate lead for testing. h Scan the measurement receiver over the applicable frequency range, using the bandwidths and minimum measurement times on the standard,Record the test spectrum curve to judge whether it is beyond the prescribed limit. k Repeat g to h for each power lead,finishing the test. The sample works normally and...

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