Tabor Electronics 5251, User Manual, Page: 247 / 298

5
Performance Checks
Test Procedures
5-25
Sync: On
Output: On
Test Procedure:
1. Verify Gated FM – standard waveforms operation on the
oscilloscope as follows:
Waveform: Gated sine waveforms
Sine Frequency: 10 kHz
Gated Period:
1 ms
Max A: 1.25 MHz
Min A: 750 kHz
Test Results
Pass Fail
Re-triggered FM
Bursts - Standard
Waveforms
Equipment: Oscilloscope
Preparation:
1. Configure the oscilloscope as follows:
Time Base: 0.2 ms
Sampling Rate: 50 MS/s at least.
Trace A View:
Jitter, Type: FREQ, CLK.
Trigger source: Channel 2, positive slope
Amplitude:
1 V/div
2. Connect the 5251 output to the oscilloscope input, channel 1
3. Connect the 5251 SYNC to the oscilloscope input, channel 2
4. Configure model 5251 controls as follows:
Waveform: Modulated
Modulation: FM
Modulation Run Mode: Burst
Burst Count:
5
Carrier Freq: 1 MHz
Mod Frequency: 10 kHz
Deviation: 500
kHz
Sync: On
Re-trigger: On
Re-trigger Delay: 200
μ
s
Output: On
Test Procedure:
1. Verify re-triggered FM burst – standard waveforms operation
on the oscilloscope as follows:
Waveform: Repetitive burst of 5-cycle sine waveforms
Sine Frequency: 10 kHz
Re-trigger delay: 200
μ
s
Max A: 1.25 MHz
Min A: 750 kHz