TB 9-6625-2074-24
Table 11. Frequency Response - Continued
Signal generator
Test instrument indications1
frequency control
settings
No. 1
No. 2
Average
Min
Max
(MHz)
(mV)
(mV)
(mV)
(mV)
(mV)
200.00
96
104
400.00
96
104
800.00
92
108
1000.00
92
108
1200.00
92
108
1If
TI indicates beyond 100 mV range, go to next higher range.
(32) Reverse the output ports connections of the power splitter.
(33) Repeat technique of (29) through (30) above and record TI indication under TI
indications No. 2 column in table 11.
NOTE
Refer to table 11 for (34) below.
(34) Add TI indications No. 1 value to TI indications No. 2 value and divide the sum
by two. Record results in TI indications average column. Results recorded in TI indications
average column will be within the limits specified in the minimum-maximum columns of
(35) Repeat (34) above for each row listed in table 11.
b. Adjustments
(1) Adjust R40 (fig. 5) for a multimeter indication between -0.01 and +0.01 V dc
(ideal 0.00 V dc) (R).
(2) Adjust R353 (fig. 5) for a multimeter indication between 9.9 and 1 0. 1 V dc
(ideal 10.0 V dc) (R).
(3) Adjust calibrator controls for an output of 1.0 V ac and adjust R303 (fig. 5) for a
TI indication between 0.98 and 1.02 mV (ideal 1.0 mV) (R).
(4) Adjust calibrator controls for an output of 3.0 V ac and adjust R308 (fig. 5) for a
TI indication between 2.94 and 3.06 mV (ideal 3.0 mV) (R).
(5) Adjust calibrator controls for an output of 10.0 V ac and adjust R318 (fig. 5) for a
TI indication between 9.8 and 10.2 mV (ideal 10.0 mV) (R).
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