HP 8517B Operating & Service Manual page 75

NOTE
3. To examine each sampler's IF signal, redefine which port and sampler
the network analyzer uses for the phase lock. Use the following steps:
a. Redefining to Port 2, sampler a2, press:
PARAMETER


then
{USER 3 a2}


{DRIVE}


DRIVE: {PORT 2}


{PHASE LOCK}


{a2}


{REDEFINE DONE}


Observe the resulting a2 IF trace on the display.
b. Redefining to Port 2, sampler b2, press:
then
{USER 2 b2}


{DRIVE}


DRIVE: {PORT 2}


{PHASE LOCK}


{a2}


{REDEFINE DONE}


Observe the resulting b2 IF trace on the display.
4. Connect an open (or short) to Port 1 and Port 2. Power is reflected back
to b1 and b2 samplers through the coupler.
To check each sampler trace, press:
{USER 1 a1}


{USER 2 b2}


{USER 3 a2}


{USER 4 b1}


5. Record your results for paths 1 thru 4 (
See Figure 5-10 for an RF signal-path 1 trace example. For Option 007, see
Figure 5-13.
Troubleshooting Procedures
[MENU]
{REDEFINE PARAMETER}
{REDEFINE PARAMETER}
to
{USER 1}
HP 8517B S-Parameter Test Set Manual 5-15
Troubleshooting the Test Set
) in Table 5-6.
{USER 4}