Service Guide E8361-90001 4-57
PNA Series Microwave Network Analyzers Troubleshooting
E8361A Measurement System Troubleshooting
Checking the A13 Frequency Offset Receiver Band 0 Output
Perform this procedure if you observe a problem in band 0 and all signals from the A12
source 20 output are present.
1. Refer to the block diagram at the end of this chapter and to “Top Cables, All Options
Including 080” on page 6-19. Locate the flexible cable W95 at the frequency offset
receiver output.
CAUTION Be careful not to damage the center pins of the semirigid cable. Some flexing
of the cables is necessary to measure the output.
2. Disconnect the flexible cable at the frequency offset receiver.
3. Connect the spectrum analyzer to the frequency offset receiver connector J6.
4. Set the network analyzer to a CW frequency of 25 MHz.
• The spectrum analyzer should measure a signal at 1.04 MHz.
5. If the measured signal is not present, Replace the A13 receiver. Refer to “Removing and
Replacing the A13 Frequency Offset Receiver Assembly” on page 7-24.
6. If the signal is present the frequency offset group is confirmed to be operational.
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