TB 9-6625-2144-35
8. Frequency Meter Accuracy
NOTE
Readings in parenthesis pertain to AN/UPMP-29A, AN/UPM-
29B, AN/UPM-29C, or TS-1335A.
a. Performance Check
(1) Position controls as listed in (a) and (b) below:
(a) FREQUENCY control to 850 (15.8 GHz) on FREQUENCY MC/10 dial.
(b) Adjust DBM dial as necessary to obtain best usable indication.
(2) Connect microwave measurement system (A2) to RF input, using adapter and
cable (B1 and B4).
(3) Adjust microwave measurement system for an output frequency of 8.5 GHz
(15.8 GHz) and power level for an on-scale indication on SET POWER meter.
(4) Slowly readjust microwave measurement system frequency until SET POWER
meter indication dips sharply.
(5) Microwave measurement system frequency indicated on frequency counter will
be between 8.4975 and 8.5025 GHz (15.792 and 15.808 GHz).
(6) Repeat technique of (1) through (4) above, substituting frequencies and
tolerances listed in table 4 (table 5).
Table 4. Frequency Meter
Test instrument
Frequency counter
FREQUENCY
indications (GHz)
MC/10 dial settings
Min
Max
860
8.5975
8.6025
880
8.7975
8.8025
890
8.8975
8.9025
900
8.9975
9.0025
910
9.0975
9.1025
920
9.1975
9.2025
930
9.2975
9.3025
940
9.3975
9.4025
950
9.4975
9.5025
960
9.5975
9.6025
6
