MAINTENANCE MANUAL
IFR 6000
2-2-3
Page 28
Aug 1/06
(17) XPDR SLS Level
TEST EQUIPMENT: Spectrum Analyzer
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 Spectrum Analyzer Input.
2. Connect the UUT SYNC port to the Spectrum Analyzer External Input.
3. Set Spectrum Analyzer as follows:
Frequency= 1030MHz
Input Att. = 20dB
VBW= None
RBW = 5MHz
Span = 0Hz
REF = 0dB
Sweep= 1µS
Trigger= Ext Front
Trig Mode= Normal
Trig Level= 2.5V
Scale= 2dB
4. Press the SETUP key to display the SETUP-XPDR screen.
5. Verify the RF PORT shows ANTENNA. If necessary, change it to ANTENNA.
6. Press the DIAG Key to display the XPDR DIAGNOSTICS screen.
7. Use the key to highlight the ATCRBS MODE A line.
8. Press the SELECT Soft Key to display the XPDR DIAG-MODE A screen.
9. Set up the UUT as follows:
PRF: 235
RF Level: –3dBm
SLS: -9dB
10. Press the RUN TEST Soft Key.
11. Verify P2 level is less than P1 level by 9dB (-1/+0dB tolerance).
12. Press the STOP TEST Soft Key.
13. Set SLS to 0dB
14. Press the RUN TEST Soft Key.
15. Verify P2 level equals P1 level (-0/+1dB tolerance).
16. Press the STOP TEST Soft Key.
17. Set SLS to OFF.
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