PERFORMANCE TESTS
NOTE
The following procedures must be performed in the order described
below to ensure that the proper equipment is connected and appropriate
programs are enabled.
PROCEDURE:
1. Static Test
a. Program the UUT to 1024 MHz and +10 dBm.
b. Connect a 50-ohm termination to the pulse modulation input connector.
c. Connect the UUT RF OUTPUT to the RF spectrum analyzer input.
d. Set the RF spectrum analyzer controls to display the output of the UUT using a
span of approximately 0.5 MHz to 1024 MHz.
e. Activate pulse modulation by pressing the External Pulse key on the UUT.
f. Observe the level change on the RF spectrum analyzer. The change should
exceed 35 dB.
g. Deactivate external pulse by pressing the External Pulse key on the UUT, and
repeat steps d through f for UUT frequencies of 950, 850, 700, 640, 550, 400,
320, 250, 160, 100,
80, 60, 40, 30, 20, 14
MHz.
2. Dynamic Test
a. Program the UUT to 640 MHz, +10 dBm, and external pulse modulation.
b. Connect the pulse generator to the UUT pulse input connector.
c. Set the pulse generator to a repetition rate of 50 kHz, +3V pulse level, and
roughly a 50% duty cycle.
d. Connect the output of the UUT to the detector.
e. Terminate the detector into 50 ohms at the oscilloscope input.
f. Set the time base of the oscilloscope to 1.0 microsecond/division.
g. Use the oscilloscope channel to invert the detector output signal,
h. Trigger the oscilloscope on this signal.
i. Set the variable position and gain on the oscilloscope so that the signal extends
from 0% to 100% on the graticule.
j. Measure the rise/fall time from the 90% to the 10% coordinates,
k. Verify that the rise/fall time is < 1 microsecond.
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