TB 9-6625-2363-35
0.2 Hz of recorded value in (4) above.
(6) Vary autotransformer to 105 V ac. Frequency counter will indicate within
0.2 Hz of recorded value in (4) above.
(7) Adjust autotransformer to 115 V ac.
(8) Reduce outputs to minimum and disconnect equipment setup.
b. Adjustments. No adjustments can be made.
a. Performance Check
Figure 2. Frequency accuracy equipment setup.
(2) Set frequency counter controls to measure frequency with 50 Ω input.
(3) Press TI pushbuttons as listed in (a) through (d) below:
(a)
Preset.
(b)
Frequency, 2, 5, 0, [kHz].
(c)
Amplitude, 0, [dBm].
(d)
RF On/Off to on.
(4) Frequency counter will indicate within limits specified in first row of table 3.
(5) Repeat technique of (3) (b) above for remaining frequencies listed in table 3.
Frequency counter will indicate within limits specified in table 3.