Garmin GTR 200, Installation Manual

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190-01553-00 GTR 200 Installation Manual
Rev. B Page 3-19
3.6.7 Flight Checks
3.6.7.1 COM Flight Check
After the installation is complete, perform the following required flight checks to ensure satisfactory
transceiver performance.
Check the communications transceiver at a range of at least 50 nautical miles: (This check verifies unit
receiver sensitivity test and transmitter range)
1. Maintain an altitude of 5000 ft AGL.
2. Select the frequency of a ground station facility at a range of at least 50 nautical miles.
3. Verify that communication (RX and TX) can be established with that facility.
Check the communications receiver by receiving transmission from a ground station in close proximity
(range of less than 10 nautical miles): (This check verifies that the receiver has a high signal to noise ratio
when receiving a strong signal.)
1. Select the frequency of a ground station facility at a range of less than 10 nautical miles.
2. Make sure the received audio from that station is clear (no background electrical noise).
3. If possible, perform the preceding steps 1 and 2 for frequencies in the high (~136.XXX MHz), mid
(~127.XXX MHz), and low (~1118.XXX MHz) range of the GTR 200.