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Performance Tests – Option 011
5. Receiver Channel Noise Floor Level (Only for Analyzers without Option 006)
11
Use the following equation to convert the linear magnitude mean value to log
magnitude:
Power (dBm) = 20 * [log
10
(linear magnitude mean value)]
12
Write this calculated value in the “Performance Test Record” in dBm.
Receiver Channel B Noise Floor Level with 10 Hz IF BW
13
Press
MEAS
,
INPUT PORTS
,
B
,
FORMAT
,
LIN MAG
.
14
Press
MENU
,
TRIGGER MENU
,
SINGLE
.
15
When the analyzer finishes the sweep, notice the mean value, which appears on
the analyzer display.
16
Use the following equation to convert the linear magnitude mean value to log
magnitude:
Power (dBm) = 20 * [log
10
(linear magnitude mean value)]
17
Write this calculated value in the “Performance Test Record” in dBm.
Receiver Channel B Noise Floor Level with a 3 kHz IF BW
18
Press
AVG
,
IF BW
,
3
,
k/m
to change the IF bandwidth to 3 kHz.
19
Press
MENU
,
TRIGGER MENU
,
SINGLE
.
20
When the analyzer finishes the sweep, record the mean value, which appears
on the analyzer display.
21
Use the following equation to convert the linear magnitude mean value to log
magnitude:
Power (dBm) = 20 * [log
10
(linear magnitude mean value)]
22
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.