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System Level Servicing & Troubleshooting
Power Level Check
Power Level Check
A quick operational check may be performed by measuring the power levels
of the 8510XF user parameters a
levels listed in
Table 5-5 on page 5-9
confidence that the system is operating properly. For complete system
verification, see Performance Verification, page 4-1.
1. If needed, save the current instrument state by pressing
and selecting 1-8. Press
[SAVE]
to restore the default factory instrument state. Change the
PRESET}
instrument settings as indicated under
power)" on page
5-10.
2. Connect a short to test port 1. Press
The forward reference signal path power level is displayed. The power
level should be approximately as indicated in
on page
5-11.
3. Select
. The forward reflection signal path power level is
{USER 4 b1}
displayed. The power level should be approximately as indicated in
Table 5-5 and Figure 5-6 on page
4. Connect a short to test port 1. In order to measure the reverse reference
signal path, the parameter must be redefined. Press:
{USER 3 a2}
{REDEFINE PARAMETERS}
{DRIVE} {DRIVE:PORT2}
{REDEFINE DONE}
The reverse reference signal path signal level is displayed. The power
level should be approximately as indicated in
on page
5-12.
5. In order to measure the reverse reflection signal path, the parameter
must be redefined. Press:
{USER 2 b2}
{REDEFINE PARAMETERS}
{DRIVE} {DRIVE:PORT2}
{REDEFINE DONE}
The reverse reflection signal path power level is displayed. The power
level should be approximately as indicated in
on page
5-11.
5-8 8510XF Service Quick Reference Guide
, b
, a
, and b
. Observing the appropriate
1
1
2
2
gives the user a high level of
INSTRUMENT STATE [RECALL], {MORE}, {FACTORY
"Power level check (low RF
, then
PARAMETER [MENU]
Table 5-5 and Figure 5-3
5-12.
Table 5-5
Table 5-5
INSTRUMENT STATE
.
{USER 1 a1}
and
Figure 5-5
and
Figure 5-4
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