Test setup 3-39, Pulse modulation test: overshoot, 3-39, Pulse modulation test: pulse level accuracy, 3-39 – Anritsu 682XXB User Manual
Page 99: Pulse modulation test: rise/fall time, 3-39, Pulse modulation tests: rise time, Fall time, overshoot, and level -39, Test setup -39, Oscilloscope
3-14
PULSE MODULATION
TESTS: RISE TIME,
FALL TIME, OVER-
SHOOT, AND LEVEL
Pulse modulation tests verify correct operation as
well as rise time, fall time, overshoot, and level. The
pulse leveling accuracy test compares the pulsed RF
output level to verify the performance of the level
detector(s), detector amplifiers, and ALC sample/
hold circuits.
Test Setup
Connect the equipment, shown in Figure 3-10, as
follows:
1. Connect the 682XXB/683XXB rear panel
PULSE
SYNC OUT
to the Oscilloscope Trigger Input.
2. Connect the Pulse Detector Output to the Vertical
Input of the Oscilloscope.
3. On the Oscilloscope, select 50
W input impedance.
4. Connect the Pulse Detector Input through a
150 MHz High Pass Filter to the 682XXB/
683XXB
RF OUTPUT
.
682XXB/683XXB MM
3-39
PERFORMANCE
PULSE MODULATION TESTS:
VERIFICATION
RISE TIME, FALL TIME, OVERSHOOT, AND LEVEL
RF Out
Pulse
Detector
150 MHz HPF
(For Overshoot
Measurement)
CH. 4 Trigger
682XXB / 683XXB
Pulse
Sync Out
CH. 2 Input
Oscilloscope
Figure 3-10.
Equipment Setup for Pulse Modulation Tests: Rise Time, Fall Time, Overshoot, and Level