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Performance Tests – Option 011
6. Receiver Channel Noise Floor Level (Only for Analyzers with Option 006)
Receiver Channel A Noise Floor Level with 10 Hz IF BW
(3 GHz–6 GHz)
33
Press
MEAS
,
INPUT PORTS
,
A
.
34
Press
MENU
,
TRIGGER MENU
,
SINGLE
.
35
When the analyzer finishes the sweep, record the mean value, which appears
on the analyzer display.
36
Use the following equation to convert the linear magnitude mean value to log
magnitude:
Power (dBm) = 20 * [log
10
(linear magnitude mean value)]
37
Write this calculated value in the “Performance Test Record” in dBm.
Receiver Channel A Noise Floor Level with 3 kHz IF BW
(3 GHz–6 GHz)
38
Press
AVG
,
IF BW
,
3
,
k/m
.
39
Press
MENU
,
TRIGGER MENU
,
SINGLE
.
40
When the analyzer finishes the sweep, record the mean value, which appears
on the analyzer display.
41
Use the following equation to convert the linear magnitude mean value to log
magnitude:
Power (dBm) = 20 * [log
10
(linear magnitude mean value)]
42
Write this calculated value in the “Performance Test Record” in dBm.
In Case of
Difficulty
1
Perform the “ADC Offset Correction Constants (Test 52),” located in the
“Adjustments” chapter in the
Agilent 8753D Option 011 Service Guide
.
2
Suspect the A10 digital IF assembly if
both
receiver channels fail.
3
Refer to the
Agilent 8753D Option 011 Service Guide
for further
troubleshooting information.