Post Installation Check
116 Transceivers 6200 Series DV14307.03 Issue 06 February 2021
2.11 Post Installation Check
Once the device/system is installed completely do a test procedure to make sure the system
functionality. Make sure that the compliance with the authority required procedures is obeyed.
The description that follows gives guidance for such tests.
Mechanical Installation and Wiring Check
• Make sure that all cables are fixed securely and shields connected properly to signal
ground.
• Examine the movement of controls to make sure that there is no interference.
• Make sure that all screws are tight and the connectors on the rear side of the device are
secured.
Power Supply
• Examine the power supply lines and the correct polarity.
• Make sure that the power supply is in the specified limits, with and without a running
engine.
Receiver / Transmitter Operation
• Power up the device/system and tune it to a local station for a communication test.
• Make sure that the receiver output supplies a clear and readable audio and ask the local
station for proper readability for the transmit signal of the device.
• Repeat this communication test with an airborne station in ≈ 20-40 NM (Nautical Miles).
Antenna Check
• Examine the VSWR (voltage standing wave ratio) over the complete frequency band.
• The VSWR ratio should be less than 2:1 and is not acceptable when exceeding 3:1.
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