M9392A Troubleshooting
9. On the
Meas
Tab:
a. Step the Input Power down in 10 dB increments to 0 dBm.
b. The path is performing properly if:
i. The noise floor drop approximately 10 dB each time the Input Power level is decreased.
ii. The attenuator clicks as it switches. The attenuator switches when stepping between the levels
listed in the table in Step 10.
10. To check all power levels set the following conditions and set input power level first to avoid an OVER-
LOAD condition:
RF Input Power
Set Display Ref-
erence Level
Change Meas Input level
From
To
-20 dBm
+30 dBm
+30 dBm
+20 dBm
-20 dBm
+30 dBm
+20 dBm
+10 dBm
-20 dBm
+0 dBm
+10 dBm
+0 dBm
-20 dBm
+0 dBm
+0 dBm
-10 dBm
-20 dBm
-20 dBm
-10 dBm
-20 dBm
-50 dBm
-30 dBm
-20 dBm
-30 dBm
-50 dBm
-30 dBm
-30 dBm
-40 dBm
11. On the
Meas
Tab, select
Use Preselector
. The power level should be close to the same level when in the
thru path (Use Preselector unchecked) and the preselector path.
12. Repeat Step 6 at 10 GHz. 20 GHz and 26.5 GHz.
13. Reset
Meas
Input Power to +30 dBm.
14. On the Source:
a. Step the power level down in 10 dB steps.
b. The power level on the M9392A should drop by 10 dB with each decrease in power level.
15. If a problem occurs:
a. If no output, for frequencies >2.75 GHz , check the M9351A path.
b. If the M9351A is good, go to the module level operational check and measure the M9360A RF 2 and
LO 2 OUT.
c. If the M9360A fails, check the M9302A.
d. If the M9361A passes the operational check, check the signals at M9361A end of A3.
e. If the M9360A is good, using the module level operational check, repeat the M9361A operational
check.
Agilent M9392A PXI Vector Signal Analyzer Startup Guide
33
Содержание M9392A
Страница 1: ...Startup Guide Keysight M9392A PXI Vector Signal Analyzer 50 MHz to 26 5 GHz...
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Страница 8: ...Documentation Map Documentation Map Agilent M9392A PXI Vector Signal Analyzer Startup Guide 7...
Страница 40: ...Streaming Data Overview System diagram Agilent M9392A PXI Vector Signal Analyzer Startup Guide 39...
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