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Figure 4. Test instrument - left side view.
Power Supply Check

Calibration Procedure For Wattmeters An/Urm-98, Ts-770/U Models 430C And 430Cr; And Model 451: Bolometer 9Thermistor Mounts Mx-2114/U, And Models 477 Page Navigation
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TB 9-6625-1918-24
Figure 5. Thermistor mount - equipment setup.
(3) Adjust synthesized signal generator frequency for a 10 MHz output and output
level for a full-scale indication on TI meter.
NOTE
If % efficiency chart is provided for TI, check only at
frequencies indicated on chart and consider indicated efficiency
when calculating measurement results.
(4) Power meter will indicate between 0.9 and 1.1 mW.
(5) Repeat technique of (3) and (4) above with a synthesized signal generator output
of 480 MHz, 5 GHz, and 10 GHz. Power meter will indicate between 0.9 and 1.0 mW.
b. Adjustments. No adjustments ran be made.
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