Test Point Compensation - ADInstruments S7200 Operation Manual

AD INSTRUMENTS S7200 TV Signal Analyzer Operation Manual

5.4.2. Test Point Compensation

Tap the "TP Compensation" item, continue tap the checkbox in the middle
window. TP compensation can be edited and applied only if the box is checked.
Figure 5-30 Snapshot: Test point compensation screen
The typical optical receiver test port loss is 20dB, older CATV active equipment
may have 30dB down test points, if so, the user can input the required
compensation. (20dB in this example) Some probes along with specific length of
cables may account for 1.5dB loss (in this example), the user can input that loss
value in the probe correction box. In this example, the total correction value is
21.5dB. In the measurement interface, the instrument will display TP=21.5dB in
the status bar at the lower right corner of the screen. After total compensation,
the test result will display the true network measurement values.
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