TB 9-6625-1916-24
Figure 2. Terminating Wattmeter Calibration, Using 100 Watt Source.
(4) Adjust signal generator and RF power amplifier amplitude controls for a full-scale
reading on the TI.
(5) If the power meter does not indicate within 5 percent of the full-scale reading
on the applicable power range of the TI, perform b (1) through (3) below. Record the exact
reading if the TI is within tolerance.
(6) Turn the TI RANGE switch to another range and then return it to the range
under test. The power meter will continue to indicate within 5 percent of the reading
computed in (5) above. Repeat this technique two times.
(7) Turn the TI RANGE switch to its highest range and rotate the coupler detector
to measure reflected power, then rotate it back to its original position and turn the RANGE
switch back to the range under test. The power meter continues to indicate within 5
percent of the reading recorded in (5) above.
computed frequencies. The power meter will continue to indicate within 5 percent of the
reading in (5) above
(9) Repeat (2) through (7) above for the remaining ranges.
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