MAINTENANCE MANUAL
IFR 6000
2-2-3
Page 6
Aug 1/06
(3) Output Frequency Accuracy
TEST EQUIPMENT: Frequency Counter
VERIFICATION FAILURE: If any step in this procedure fails or is out of tolerance,
this indicates a failure in the Test Set. Refer to
Troubleshooting for corrective action.
STEP PROCEDURE
1. Connect the ANT port to the frequency counter.
2. Press the SETUP key twice to display the SETUP-DME screen.
3. Verify the RF PORT shows ANTENNA. If necessary, change it to ANTENNA.
4. Press the DIAG Soft Key to display the DME DIAGNOSTICS screen.
5. Press the SELECT Soft Key to display the DME DIAG- CW screen.
6. Set the RFLVL to –2dBm.
7. Set up the UUT for the first frequency listed below:
962MHz
1030MHz
1090MHz
1150MHz
1213MHz
8. Press the RUN TEST Soft Key.
9. Verify that Measured Frequency equals Setting Freq. ± 10 kHz.
10. Press the STOP TEST Soft Key.
11. Repeat above steps for each frequency listed.
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