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Service Information
Measuring Test IF and REF IF Path Loss on the N5261A
The IF paths for the N5261A are not switched, see
The cable connected to PNA Port 1 must be long enough to reach the rear
panel of the test set.
1. Prepare the PNA to measure S12 with a normalization calibration. Select a
2. Measure the IF signal paths listed below. Connect PNA Port 2 cable to the
Measuring Test IF and REF IF Path Loss on the N5262A
The IF paths for the N5262A are switched (i.e. multiplexed), see
page
The cable connected to PNA Port 1 must be long enough to reach the rear
panel of the test set.
1. Prepare the PNA to measure S12 with a normalization calibration. See
2. Measure each path listed in
Keysight N5261/62A User's & Service Guide
frequency range of 10 to 20 MHz and a power level of −20 dBm. See
Normalization Calibration" on page
test set front panel and the PNA Port 1 cable to the rear panel IF OUT.
Maximum loss should be < 0.5 dB.
— Port 1 TEST IF to A (rear panel)
— Port 1 REF IF to C (rear panel)
— Port 2 TEST IF to B (rear panel)
— Port 2 REF IF to D (rear panel)
52.
"PNA Normalization Calibration" on page
10 to 20 MHz and a power level of −20 dBm. See
Calibration" on page
69.
is defined by entries in the "From:" and "To: N5262" columns.
- For a given IF path, issue the appropriate command then measure the
gain (loss) and connect PNA Port 2 to the appropriate connection on the
front panel of the test set.
- The maximum path loss is listed for each path.
- There should be no holes or significant discontinuities on the traces.
Figure
2-17,
Figure 2-18
acceptable traces.
69.
69. Select a frequency range of
Table 2-3 on page 76
and
Figure 2-19 on page 77
Figure 2-1 on page
51.
Figure 2-2 on
"PNA Normalization
for N5262A. Each path
are examples of
"PNA
75
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Troubleshooting
