HP 5385A User Manual

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HP 5384A and HP 5385A
Performance Tests
Table 4-1. Performance Test (Continued)
2. Set the HP 86408 Signal Generator so the HP 436A Power Meter reads -17.5 dBm at 90 MHz .
Increase the frequency of the signal generator while maintaining a -17.5dBm reading on the
power meter. Verify the HP 5385A displays an increase in frequency, approximately tracking
the signal generator from 90 MHz to 100 MHz. Record the results on the test card (Pass/Fail).
b. 100 MHz to 1000 MHz
1. Set the HP 86408 Signal Generator so the power meter reads -21 dBm at 100 MHz. Increase
the frequency of the signal generator while maintaining a -21 dBm reading on the power
meter, and verify the HP 5385A displays the proper frequencies from 100 MHz to 1000 MHz.
Record the results on the test card (Pass/Fail).
V. PERIOD A TEST
Description:
A signal generator with a calibrated output drives channel A of the HP 5384A/HP 5385A under test. The
counter is set to measure the period of the signal. The HP 5384A/HP 5385A should display the proper
count.
Specifications: 10 nanoseconds to 0.1 seconds (100 MHz to 10Hz)
a. Connect the HP 3325A synthesizer/function generator to the HP 5384A/HP 5385A Channel A
input as shown in Figure 4-5.
BNC
"T" CONNECTOR
I EXT REF IN OVEN OUTPUT
EXT 10 MHz HP 5384A/HP 5385A
REF FREQUENCY COUNTER
nn Ll
I 1 :~Hi0;,00:;:; r-:H zJII ~I
I~~~~~~~~~~~~ IT @
I INPUT A
I
~
HP 10100C
son FEEDTHROUGH
r.. ·l fillil
~~
0 0
00000
00000
00000
00000
HP 3325A SYNTHESIZER/FUNCTION
GENERATOR (OPTION 001)
BNC CABLE
Figure 4-5. Period A Test Setup
RF OUTPUT
b. Set the counter power switch from STBY to ON and select PERIOD A. Set the GATE time to 1.0
seconds.
c. Set the HP 3325A synthesizer to 10 Hz at 100 mV rms output.
d. Verify the counter displays 100.00000 milliseconds ±70 microseconds. Record the results on the
test card (pass/fail).
VI. CHANNEL A FILTER AND ATTENUATOR TEST
Description:
A signal generator with a calibrated output drives the channel A of the HP 5384A or HP 5385A under
test. The counter is set up for its Frequency A function, and the channel A filter is exercised at
frequencies below and above its normal 3 dB point. The channel A attenuator is also exercised. The
counter should display the proper frequencies.
4-5

HP 5385A Specifications

General

Brand	HP
Model	5385A
Category	Cash Counter
Language	English