Technical data

4-6 8510C Service Quick Reference Guide
Performance Verification
CW Frequency Accuracy Test
NOTE Be sure to connect the test set output to the 500 MHz − 26.5 GHz position
input on the frequency counter. Also set the input switch to the 500 MHz −
26.5 GHz position.
6. Measure the frequency with the counter, and record the value on the test record as in
Table 4-2.
In Case of Difficulty
If the measured values do not meet the specifications listed on the test record, refer to your
source manual for adjustment and troubleshooting instructions.
Table 4-2 Performance Test Record for CW Frequency Accuracy Test
Instrument Model Report Number Date
Frequency Minimum
Specification
Recorded Results Maximum
Specification
Uncertainty
a
a. The measurement uncertainty is quoted for these performance tests using only the recommended
models specified in Table 8-1 of the On-Site Service Manual. The quoted uncertainty represents
limits of ± 3 times the equivalent standard deviation (3 σ) and is intended to represent a 90%
confidence level.
45 MHz
b
b. For all sources except the 83622A/B and 83624A/B.
44.999955 MHz 45.000045 MHz ± 10 Hz
2 GHz
c
c. For 83622A/B / 24A/B only.
1.999998 GHz 2.000002 GHz ± 10 Hz
20 GHz
d
d. For 83620A/B / 21A/B / 22A/B / 23A/B / 24A/B only.
19.99998 GHz 20.00002 GHz ± 4 kHz
26.5 GHz
e
e. For 83631A/B / 40A/B / 51A/B and 8340 only.
26.4999735 GHz 26.5000256 GHz ± 5 kHz
40 GHz
f,g
f. For 83640A/B only
g. For 83650A/B / 51A/B only.
39.999996 GHz 40.000004 GHz ± 5 kHz
50 GHz
g,h
h. 40 GHz and 50 GHz can be measured with a 26.5 GHz counter to verify 40 or 50 GHz due
to double function in source.
49.9999756 GHz 50.0000256 GHz ± 5 kHz