artisan 8640B - Pulse Measurements

Model 8640B TM 9-4935-601-14-7&P
PERFORMANCE TESTS
4-36. PULSE MODULATION TEST (Cont'd)
PROCEDURE:
1. Connect equipment as shown in Figure 4-22, with oscilloscope connected directly to test generator's RF OUTPUT,
after setting test Signal Generator's controls as follows:
Meter Function..........................................................................................LEVEL
COUNTER MODE: EXPAND ..........................................................................Off
LOCK ..............................................................................Off
Source ........................................................................... INT
AM........................................................................................................... PULSE
FM ...............................................................................................................OFF
RANGE ..............................................................................................0.5 -1 MHz
FREQUENCY TUNE..................................................................................1 MHz
OUTPUT LEVEL........................................................... -17 dBm (Vernier full cw)
RF ON/OFF ....................................................................................................ON
2. Set pulse generator for a repetition rate of 100 Hz, a pulse width of 10 us, and an amplitude of 1V.
3. Adjust oscilloscope to display the RF pulse envelope. Readjust the pulse width for 10 us (measured at 50% amplitude
points) and measure the rise and fall times (see Figure 4-23). Both should be less than 9 Ps (measured between 10%
and 90% of the full pulse amplitude).
Figure 4-23. Pulse Measurements
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