TB 9-6695-272-35
NOTE
Remove bottom cover to gain access to FREQ ADJ. Remove
FREQ ADJ screw to provide access to adjustment (option 001).
(3) Adjust FREQ ADJ for minimum difference indication on frequency
difference meter.
(4) Allow at least 24 hours for oscillator to stabilize. Frequency difference meter
indication will stay within 1 x 10-8 (<5 x 10-10 per day for option 001).
b. Adjustments. No further adjustments can be made.
9. Frequency
a. Performance Check
(1) Connect TI 10 MHz OUTPUT (rear panel) to frequency counter REFERENCE
IN (rear panel).
(2) Press EXT REF on frequency counter to utilize external reference.
(3) Connect OUTPUT 200 Hz-80 MHz 50 Ω to frequency counter A input.
(4) Press FREQUENCY, 200, Hz/deg, AMPLITUDE, 13.01, and kHz/+dBm
pushbuttons. Frequency counter will indicate between 199 and 201 Hz.
(5) Press FREQUENCY and DATA pushbuttons as listed in table 3. Frequency
counter will indicate within limits specified.
Frequency counter indications
Test instrument
(MHz)
FREQUENCY and DATA settings
(MHz)
Min
Max
5
4.999 999
5.000 001
10.999 999
10.999 998
11.000 000
14.5
14.499 999
14.500 001
20
19.999 999
20.000 001
28.123 456
28.123 455
28.123 457
40
39.999 999
40.000 001
60
59.999 999
60.000 001
80
79.999 999
80.000 001
b. Adjustments. No adjustments can be made.
10. Harmonic Distortion
a. Performance Check
(1) Connect TI OUTPUT 200 Hz-80 MHz 50 Ω to spectrum analyzer.
(2) Press FREQUENCY,
100,
kHz/+dBm,
AMPLITUDE,
13.01,
and
kHz/+dBm pushbuttons.
