Belfort AWOS, Руководство по обслуживанию

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BELFORT
INSTRUMENT
Proprietary Information
Belfort AWOS Commissioning / Annual Inspection Procedure
This procedure is to be used to ensure that the Belfort AWOS AV 100 system meets the FAA
requirements for both Commissioning and Annual Inspections.
*Per FAA Circular 150/5220-16D, section 2.9.a, all maintenance technicians must meet the
qualifications defined in FAA Order 6700.20, Non-Federal Navigational Aids and Air
Traffic Control Facilities, in order to perform the Belfort AWOS Commissioning / Annual
Inspection Procedure.
I.
Required Equipment and Documentation:
1) HP 8920B Communications Test Set or equivalent
with 50 ohm cable(male BNC connectors on both ends), N male to BNC female
adapter
2)
Bird Model 5000-EX or equivalent.
3) Bird Series 5010 Directional Power Sensor or Equivalent.
4) Bird DPM-50C 100-250 MHZ elements rated for 50 Watts and 5 Watts.
5) Voltmeter.
6) Belfort AWOS Commissioning/Annual Record Data Sheet Drawing # 80xxx.
II. Preparation:
1) On the Belfort AWOS Commissioning/Annual Record fill in the Date, Location,
and Technician information.
2) Verify Serial Number and the valid Calibration Dates as required for all test
equipment used. Complete the Calibration Date information on the Belfort
AWOS Commissioning/Annual Record.
3) Connect the HP 8920B Communications Test Set to 120vac source and turn on.
This instrument requires ½ hour warm up time before any measurement are taken.
Plug the N male to BNC female adapter into the RF IN/OUT plug on the
HP8920B. Plug one end of the 50-ohm cable into the adapter. Plug the other end
of the 50-ohm cable onto the DCP antenna plug.
4) Configure the 8920B as follows:
Press the TX button. The screen should read “TX Test” at the top. Change the
fields using the round knob and set the fields to the following:
TX power Zero Zero
TX power Meas Peak
Input Port RF in
IF Filter 15 kHz
Ex Tx Key Off
AF Anl In FM Demod