Technical data

2-18 Chapter 2
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 .
14.Press .
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 to change the IF bandwidth to 3 kHz.
19.Press .
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 “ADC Offset Correction Constants (Test 52)” on page 3-18.
2. Suspect the A10 digital IF assembly if both receiver channels fail.
3. Refer to Chapter 8 , “Receiver Troubleshooting,” for troubleshooting information.
Meas
B
Format
LIN MAG
Sweep Setup
TRIGGER MENU SINGLE
Avg
IF BW
3 k/m
Sweep Setup
TRIGGER MENU SINGLE