Agilent Technologies 8753ES Option 011 Service Manual page 34

Performance Tests
5. Receiver Channel Noise Floor Level (Only for Analyzers without Option 006)
Receiver Channel B Noise Floor Level with 10 Hz IF BW
13.Press
B
Meas
14.Press
Sweep Setup
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
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
19.Press
Sweep Setup
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
22.Write this calculated value in the performance test record in dBm.
In Case of Difficulty
1. Perform "ADC Offset Correction Constants (Test 52)" on page
2. Suspect the A10 digital IF assembly if both receiver channels fail.
3. Refer to Chapter 8 , "Receiver Troubleshooting,"
2-18
.
LIN MAG
Format
TRIGGER MENU
(linear magnitude mean value)]
10
to change the IF bandwidth to 3 kHz.
3 k/m
TRIGGER MENU
(linear magnitude mean value)]
10
.
SINGLE
.
SINGLE
3-18.
for troubleshooting information.
Chapter 2