Chapter 4 4-25
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Troubleshooting 8753ES Option 014
Setup
1. Press .
2. Connect the RF cable between PORT 1 and PORT 2.
Measurements
Perform the following measurements. Observe the response and make note of any
irregularities or degraded response in the frequency response. Refer to Figure 4-13, Figure
4-14, and Figure 4-15 for examples of different responses. Complete all of the steps listed.
If a problem occurs, match the measurement (S11, S21, S12, S22) where the problem was
displayed, to the symptom that closest describes the problem. For information on how to
make measurements, refer to your analyzer’s user’s guide.
1. Measure the S21 response by pressing .
2. Measure the S12 response by pressing .
3. Disconnect the cable from PORT 2.
4. Connect a short to the end of the test port cable.
5. Measure the S11 response by pressing .
6. Disconnect the cable from PORT 1.
7. Connect the cable to PORT 2.
8. Measure the S22 response by pressing .
Preset
Meas
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