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Figure 2. Frequency response - equipment setup.
Figure 3. Regulated power supply 3A1 - location of parts.

Calibration Procedure For Electronic Voltmeters An/Urm-145D (Me-247D/U) (Model Mv-828A) Page Navigation
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TB 9-6625-2288-24
(7) Set the measuring receiver to make an RF power measurement in mV.
(8) Adjust signal generator output to 100 mV and frequency controls to value listed
in signal generator frequency settings listed in table 5.
(9)
Measuring receiver indication will be within the limits listed in table 5.
Table 5. Frequency Response
Signal generator
Measuring receiver
frequency settings
voltage indications
(MHz)
Min
Max
3
95
105
5
95
105
7
95
105
10
95
105
20
95
105
50
95
105
90
95
105
100
95
105
175
95
105
200
90
110
300
90
110
350
90
110
400
90
110
(10) Adjust signal generator for remaining frequency settings listed in table 5.
Measuring receiver indication for remaining frequency settings will be within limits
specified in table 5.
b. Adjustments. No adjustments can be made.
10. Power Supply
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
a. Performance Check. Connect multimeter positive lead to 3A1TP1 (fig. 3) and
connect negative lead to 3A1TP2 (fig. 3). If the multimeter does not indicate between.
+14.49 and +14.51 V dc, perform b (1) below.
b. Adjustments. Adjust 3A1R13 (fig. 3) for a multimeter indication between +14.49
and +14.51 V dc (ideal 14.50 V dc) (R).
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