3156B User Manual
Maintenance and Performance Checks 6-30
Racal Instrument © 2005
2.0e6
2.2e6
2.4e6
2.6e6
2.8e6
Test Procedure
1. Verify hop operation on the oscilloscope as follows:
Waveform:
Frequency steps, fixed dwell time of 50
μ
s
Period:
500
μ
s
Max
A:
2.8MHz
Min
A:
1.0MHz
Test Results
Pass
Fail
2. Remove the cable from 3156B channel 1 and connect to chan 2
3. Repeat the test procedure as above for channel 2
Test Results
Pass
Fail
AM
Equipment
: Oscilloscope
Preparation
:
1. Configure the oscilloscope as follows:
Time Base:
0.5 ms
Trigger source: Channel 2, positive slope
Amplitude:
1V/div
2. Connect 3156B Channel 1 output to the oscilloscope input,
channel 1
3. Connect the 3156B SYNC output to the oscilloscope input,
channel 2
4. Configure the 3156B channels 1/2 as follows:
Reset
Wave Mode: Modulation
Modulation Mode: AM
Carrier Frequency: 1MHz
Modulating
Frequency:
1kHz
Modulation Depth: 500kHz
Sync:
On
Output:
On
Enable:
On