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3151 And 3151A User Manual
Maintenance and Performance Checks 5-11
4. Measure the distortion according to the settings in the table
above.
5. Connect the Model 3151 output to spectrum analyzer input
through a 50
Ω
feedthrough terminator (or a 20dB 50
Ω
attenuator if required).
6. Set the Model 3151 FREQ setting and verify the harmonic
distortions levels as follows:
Freq Setting
Harmonics Level
5.000MHz
<50dB
50.00MHz
<28dB
Sine Flatness
Level Flatness:
"
1% to 1.000 MHz;
"
5% to 10.00 MHz;
"
15% to
50.00 MHz
Equipment: Oscilloscope
1. Configure the Model 3151/3151A as follows:
Function:
Sine wave
Frequency:
1.000 KHz
Amplitude:
6 V
Remote Commands: :RES
:OUTP ON
:FREQ 10e3
:VOLT 6
2. Connect the Model 3151/3151A OUTPUT to the oscilloscope,
set the oscilloscope input impedance to 50
Ω
, and set the
oscilloscope to display the sinewave within exactly 6 vertical
divisions.
3. Change the Model 3151/3151A FREQ setting to 1.000 MHz.
Verify that peak-to-peak of the displayed sinewave is within 5.9
to 6.1 divisions.
4. Change the Model 3151/3151A FREQ setting to 10.00 MHz.
Verify that peak-to-peak of the displayed sinewave is within 5.7
to 6.3 divisions.
5.
Change the Model 3151/3151A FREQ setting to 50.00
MHz. Verify that peak-to-peak of the displayed sinewave is
within 5.1 to 6.9 divisions.
Summary of Contents for 3151
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