MAINTENANCE MANUAL
IFR 4000
2-2-3
Page 13
Aug 1/04
STEP PROCEDURE
17. Set the Test Set as follows:
FIELD
SETTING
FREQ
400.000 MHz
RF LVL
-40.0 dBm
MOD TONE
OFF
M MOD
0%
18. If the UHF Mode Screen is in RECEIVING Mode, press the SWITCH GEN/RX
Soft Key to switch the COMM UHF Mode Screen to GENERATING Mode.
19. Verify -40 dBm (
±
2 dB) on the Power Meter.
20. Press the MODE Select Key until the COMM VHF AM Mode Screen is displayed.
21. Set the Test Set as follows:
FIELD
SETTING
FREQ
137.000 MHz
RF LVL
-40.0 dBm
MOD TONE
OFF
M MOD
0%
22. If the VHF AM Mode Screen is in RECEIVING Mode, press the SWITCH GEN/RX
Soft Key to switch the COMM VHF AM Mode Screen to GENERATING Mode.
23. Verify -40 dBm (
±
2 dB) on the Power Meter.
24. Set the FREQ Field to
118.000 MHz
.
25. Verify -40 dBm (
±
2 dB) on the Power Meter.
26. Disconnect the Power Sensor from the RF I/O Connector and connect the
Measuring Receiver to the RF I/O Connector.
27. Load Calibration Factors for 118.000 MHz on Measuring Receiver.
28. Set the RF LVL Field to the following settings and verify levels on the Power
Meter:
RF LVL
LEVEL
-12 dBm
-12 dBm (
±
2.5 dB)
-22 dBm
-22 dBm (
±
2.5 dB)
-32 dBm
-32 dBm (
±
2.5 dB)
-42 dBm
-42 dBm (
±
2 dB)
-52 dBm
-52 dBm (
±
2 dB)
-62 dBm
-62 dBm (
±
2 dB)
-72 dBm
-72 dBm (
±
2 dB)
-82 dBm
-82 dBm (
±
2 dB)
-92 dBm
-92 dBm (
±
2 dB)
-102 dBm
-102 dBm (
±
3 dB)
-112 dBm
-112 dBm (
±
3 dB)
-120 dBm
-120 dBm (
±
3 dB)
29. Disconnect the Measuring Receiver from the ANT Connector.
Summary of Contents for IFR 4000
Page 1: ...NAV COMM Test Set Maintenance Manual 1002 5600 4P0 IFR 4000...
Page 3: ...MAINTENANCE MANUAL IFR 4000 FOR QUALIFIED SERVICE PERSONNEL ONLY...
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