MAINTENANCE MANUAL
IFR 6000
2-2-3
Page 27
Aug 1/06
(16) XPDR Interrogation PRF
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 UUT SYNC port to the Frequency Counter CH1.
2. Press the SETUP key to display the SETUP-XPDR screen.
3. Verify the RF PORT shows ANTENNA. If necessary, change it to ANTENNA.
4. Press the DIAG Key to display the XPDR DIAGNOSTICS screen.
5. Use the key to highlight the ATCRBS MODE A line.
6. Press the SELECT Soft Key to display the XPDR DIAG-ATCRBS MODE A screen.
7. Select the following PRF frequencies and verify they are correct.
PRF Freq. (Hz)
Tol. (± Hz)
235 235 5
118 118 5
90 90 5
70 70 5
50 50 5
8. Press the STOP TEST Soft Key to stop the tests.
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