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

CW Frequency
Accuracy
Supplemental
Verification Tkst
Connect the Test
Equipment
CW Frequency Accuracy Supplemental Verification Test
HP 8648 UNDER TEST
Configure the For frequencies < 10 MHz:
Frequency Counter Use Input 2; press II.
HP 53508
FREQUENCY COUNTER
ATTENUATOR
10 dB
Figure 9- 1. Frequency Accuracy Equipment Setup
For frequencies > 10 MHz and < 500 MHz:
Use Input 2; press m.
For frequencies > 500 MHz:
Use Input 1; press m).
Configure the HP 8648 1. Set the amplitude; press C-J a (dB(MU.
2. Turn the RF output on; press C-1.
Measure Frequency 1. Set the frequencies shown in the test record.
Accuracy 2. For each data point, measure the carrier frequency with FM turned
off, press [MOD ON/OFF].
3. Record the measured frequency in the test record.
4. Compute the error (difference) and compare it to the corresponding
limits.
Test Record HP 8648A . . . . .
HP 8648B . . . . . . . .
HP 8648C . . . . . . . . . . .
HP 8648D . . . . .
HP 8648A Option lE5
HP 8648B Option lE5
HP 8648C Option lE5
HP 8648D Option lE5
.
*
,
.
.
. .
. . .
.
. .
.
. . . . .
.
. . .
.
.
.
. .
. .
. .
.lkble 9-l
Table 9-2
Table 9-3
.Table 9-4
. Table 9-5
‘Ihble 9-6
‘lkble 9-7
Table 9-8
Supplemental Verification Tests 9-3