TB 9-6695-288-35
11. Oscillator Frequency Accuracy
a. Performance Check
(1) Connect OSCILLATOR OUTPUT to frequency counter.
(2) Set FREQUENCY switches to 1.0 x 10 and adjust OSCILLATOR LEVEL
vernier control fully cw. If frequency counter does not indicate between 98.04 and 102.04
ms, perform b below.
does not indicate within limits specified, perform b below.
Test instrument FREQUENCY
Frequency counter indications
switch settings
Min
Max
3.0 x 10
32.679 ms
34.014 ms
5.0 x 10
19.608 ms
20.408 ms
10.0 x 10
9.803 ms
10.204 ms
2.0 x 100
196 Hz
204 Hz
4.0 x 100
392 Hz
408 Hz
9.0 x 100
882 Hz
918 Hz
1.0 x 1K
980 Hz
1020 Hz
2.1 x 1K
205 Hz
2142 Hz
3.2 x 1K
3136 Hz
3264 Hz
4.3 x 1K
4214 Hz
4386 Hz
5.4 x 1K
5292 Hz
5508 Hz
6.5 x 1K
6370 Hz
6630 Hz
7.6 x 1K
7448 Hz
7752 Hz
8.7 x 1K
8526 Hz
8874 Hz
9.8 x 1K
9604 Hz
9996 Hz
10.9 x 1K
10,682 Hz
11,118 Hz
1.0 x 10K
9800 Hz
10,200 Hz
5.0 x 10K
49,000 Hz
51,000 Hz
10.9 x 10K
106,820 Hz
111,180 Hz
indications between 1.0 x 10K and 10.0 x 10K settings (R).
a. Performance Check
(1) Connect equipment as shown in figure 3.
