TB 9-6625-2021-24
17. Self-Check
a. Performance Check
(1) Press FREQ SHIFT (blue) and RESOLUTION CHECK pushbuttons. Verify
that TI displays 75.000000 MHz 1 count.
(2) Press RESET pushbutton.
termination from FREQ STD OUT (rear panel) and connect
(3) Remove 50
FREQ STD OUT to TI front panel BNC input connector.
(4) Press FREQ SHIFT (blue) and RESOLUTION 1 Hz pushbuttons. Verify that
TI displays 10.000000 MHz 1 count.
(5) Press RESET pushbutton and reconnect 50
termination to FREQ STD OUT
connector (rear panel).
b. Adjustments. No adjustments can be made.
18. Frequency and Sensitivity Check - 10 Hz to 520 MHz
a. Performance Check
CAUTION
The 10 Hz to 500 MHz direct count input BNC connector is
fuse-protected for a maximum input level of 3.5 V rms (+24 dBm).
(1) Press FREQ, SHIFT (blue) and RESOLUTION 1 Hz pushbutton.
(2) Connect function generator output to TI front panel BNC input.
(3) Set function generator for a sinewave, 10 Hz, 1 mVp-p, 50
output. Slowly
increase function generator amplitude until TI displays a stable indication of applied frequency.
If function generator amplitude exceeds 71 mVp-p, perform b below.
(4) Set function generator amplitude to 71 mVp-p.
NOTE
Allow sufficient time for TI to stabilize between each increment
throughout the following frequency ranges.
(5) Increment function generator frequency from 10 Hz to 10 MHz. If TI does not
display a stable indication at each frequency increment, perform b below.
(6) Disconnect function generator from TI.
(7) Connect signal generator output to TI front panel BNC input.
indicate a stable indication of applied frequency.
(9) Increment signal generator frequency from 10 MHz to 520 MHz. TI will display
a stable indication at each frequency increment.
