MAINTENANCE MANUAL
IFR 4000
2-2-3
Page 41
Aug 1/04
(19) SWR Meter
TEST EQUIPMENT:
50
Ω
Load
75
Ω
Load
100
Ω
Load
150
Ω
Load
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. Press the SETUP Key to display the Setup Menu.
2. Set the GEN FREQ Field to
VAR
.
3. Connect the 50
Ω
Load to the SWR Connector.
4. Set the FREQ Field as follows and verify readings on the Test Set:
FREQ READINGS
75 1.000
(
±
0.2 +
±
20% of reading)
137 1.000
(
±
0.2 +
±
20% of reading)
225 1.000
(
±
0.2 +
±
20% of reading)
312 1.000
(
±
0.2 +
±
20% of reading)
400 1.000
(
±
0.2 +
±
20% of reading)
5. Disconnect the 50
Ω
Load from the SWR Connector and connect the 75
Ω
Load
to the SWR Connector.
6. Set the FREQ Field as follows and verify readings on the Test Set:
FREQ READINGS
75 1.500
(
±
0.2 +
±
20% of reading)
137 1.500
(
±
0.2 +
±
20% of reading)
225 1.500
(
±
0.2 +
±
20% of reading)
312 1.500
(
±
0.2 +
±
20% of reading)
400 1.500
(
±
0.2 +
±
20% of reading)
7. Disconnect the 75
Ω
Load from the SWR Connector and connect the 100
Ω
Load
to the SWR 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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Page 166: ...MAINTENANCE MANUAL IFR 4000 2 3 1 Page 6 Aug 1 04 STEP PROCEDURE 4 Remove the Fuse...
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