8.2 Frequency Check
To ensure the SAR system is not activated, these tests should be done in such a
manner that no radiated signal escapes. Use of an RF screen room
or attenuator chamber is required. A WST tester or equivalent is required.
Measure the frequency after three (3) minutes of operation. The use of a WST tester or
equivalent is required. A spectrum analyzer can be used to measure frequency, but usually the
accuracy is less than required.
•
Check to ensure the 406.037 MHz signal for accuracy
•
The frequency tolerance is .001Mhz
8.3 Peak Power Test
To ensure the SAR system is not activated these tests should be done in such a
manner that no radiated signal escapes. Use of an RF screen room
or attenuator chamber is required. A WST tester or equivalent is required.
Measure the output power after 3 minutes of operation. The use of a WST tester or a suitable
Spectrum Analyzer is required. Use a suitable impedance matching device and/or attenuator in
line with the ELT
•
Check to ensure the 406 MHz signal bursts approximately every 50 seconds
•
Ensure the duration is 520 ms in duration
•
Ensure the output power of the 406 is equal to 37 ± 2 dBm (5 watts)
Содержание ELT406GPS
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