HP 8648 A/B/C/D - Changpuak.ch

Pager Encoder
Timebase Accuracy
Performance Test
(Option 1EP Only)
Connect the Test
Equipment
Pager Encoder Timebase Accuracy Performance Test (Option 1EP Only)
HP a64aA UNDER TEST
Configure the 1. Frequency Auto
Frequency Counter 2. Input 1 MO
I
MOD
1 NPUT/OUl ‘PUT
UNIVERSAL COUNTER
an64abc
Figure S-20. Pager Encoder Timebase Accuracy Equipment Setup
Configure the HP 8648 1. Enter the pager encoder mode by pressing (FM) (ENCODER) twice.
(If FM was the last active function, only press the IFhn) (ENCODER)
key once.)
2. Rotate the AMPLITUDE/ENCODER knob to set FORMAT to SERVICE.
3. Press (JJ (NEXT) and rotate the AMPLITUDE/ENCODER knob to
set CALIBRATIONFSK to 3200/2.
4. Press @?i??Z] (START/STOP) to turn the encoder output on.
Measure the 1. Record the test results and compare the results to the limits in the
Frequency test record.
Test Record HP 8648A Option 1EP . . . . . . . . . . . .Table 8-17
Performance Tests 6-29