Pulse Performance (Alternate Procedure); Rise And Fall Imes < 20 Ghz - Agilent Technologies 83620A Service Manual

14. Pulse Performance (Alternate Procedure)

Description and Procedure
In this procedure, the synthesizer's RF output is downconverted in frequency
so that an oscilloscope can measure the rise and fall times and make a
comparison of pulsed and CW power level accuracy. For measurements above
20 GHz RF output frequency, a spectrum analyzer with external mixer is used
to downconvert to a 321.4 MHz RF. Power level accuracy is checked at a 10 Hz
pulse repetition rate to verify its operation at the slowest speci ed rate. he
power ampli er ensures a sucient signal level into the oscilloscope to make
the measurement.
1. urn on the equipment shown in Figure 2-18 and Figure 2-20. Preset the
instruments and let them warm up for at least one hour.
<
Rise and Fall Times 20 GHz
his procedure is not valid for fast pulse option (Option 006).
Note
2. Connect the equipment as shown in Figure 2-18.
2-76 Performance Tests
Pulse Performance (Alternate)
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