
I
Calibrating for Increased Measurement
Accuracy
Check the Calibration
3. Plot the results to disk or to hard copy for later comparison.
4. Compare subsequent calibration checks against the initial one and keep
track of the tune interval between the first calibration check and later
ones.
5. When the residual errors have drifted beyond what is acceptable, note
the tune interval and use that information to determine what is the best
calibration interval for your measurements.
6. Repeat the process above enough times to feel confident that your
calibration interval is correct.
The calibration check feature can be used on any of the transmission or
reflection calibrations available (including the factory default calibration). See
6-2.
Table 6-2. Calibration Check Error Terms
Measurement
Calibration
Standards’
Error
Needed
Computed
Transmission
Default
Source Match, load Match, Transmission Tracking
Response
Source Match, load Match, Transmission Tracking
Response Isolation
Source Match, load Match, Transmission Tracking,
Enhanced Response
Source Match, bad Match, Transmission Tracking
Test
Source Match, Load Match, Transmission Tracking
Reflection
Default
Diractivity, Source Match, Reflection Tracking
One Port
Diractivity, Source Match, Reflection Tracking
Test
Diractivity, Source Match, Reflection Tracking
1
1 Open, Short, L Load, T = Thru
2 See “Error Term Descriptions and Typical Values”, later in this chapter,
3 Used with HP
multiport test set only
6-27
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Summary of Contents for 8711C
Page 36: ...I I 2 Getting Started 深圳市盛腾仪器仪表有限公司 Tel 0755 83589391 Fax 0755 83539691 Website www Sengt com ...
Page 55: ...3 Making Measurements 深圳市盛腾仪器仪表有限公司 Tel 0755 83589391 Fax 0755 83539691 Website www Sengt c ...
Page 99: ...深圳市盛腾仪器仪表有限公司 Tel 0755 83589391 Fax 0755 83539691 Website www Sengt com ...
Page 276: ...深圳市盛腾仪器仪表有限公司 Tel 0755 83589391 Fax 0755 83539691 Website www Sengt com ...
Page 340: ...I 8 Front Rear Panel 深圳市盛腾仪器仪表有限公司 Tel 0755 83589391 Fax 0755 83539691 Website www Sengt com ...
Page 364: ...9 Softkey Reference 深圳市盛腾仪器仪表有限公司 Tel 0755 83589391 Fax 0755 83539691 Website www Sengt c ...
Page 499: ...Index I 深圳市盛腾仪器仪表有限公司 Tel 0755 83589391 Fax 0755 83539691 Website www Sengt com ...