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Model 5328A
Maintenance
Table 5-4. Performance Test (Continued)
(1) DC coupled 10 MHz to 100 MHz
.
Set Counter No. 1 (HP 5328A] to DC coupling (B channel).
l
Set the 8601A for an output level of 15 mV rms as measured on the 3406A
RF voltmeter. Vary the 8601A’s frequency from 10 MHz to 35 MHz and verify
that the 5328A Channel B MARKER OUTPUT is the correct frequency as read
by counter No. 2. Increase the 8601A output level to 50 mV rms and vary the
frequency from 35 MHz to 100 MHz. Counter No. 2 must continue displaying
the correct input frequency. Adjust the 5328A LEVEL B control as necessary
to achieve a stable display. Mark results on performance test record.
(2) AC coupled 10 MHz to 100 MHz
l
Set Counter No. 1 (HP 5328A) to DC coupling (B channel).
l
Set the 8601A for an output level of 15 mV and repeat part 2 of step (1) above.
3. SENSITIVITY-Channel C
Specification:
15 mV rms, 30 MHz-500MHz
Description: A signal generator covering the frequency range from 30 MHz to 500 MHz
is set to the specified channel C 5328A signal sensitivity level and varied over the specified
frequency range. The counter must display the correct frequency.
Setup:
HP 8840A
HP 5328A
SIGNAL GENERATOR
CHANNEL C
l
Set the 5328A to FREQ C, 1 kHz,
103
Resolution, SAMPLE RATE midrange.
.
Set the signal generator for an output of 15 mV rms (-24 dBm for
50fl).
Vary
the frequency from 30 MHz to 500 MHz and verify that the counter displays
the proper frequency.
5-7