TB 9-6625-2137-35
(5) Repeat (1) through (3) above for 3100 Hz bandwidth. The difference between the
two frequencies will be between 2790 and 3410 Hz.
b. Adjustments. No adjustments can be made.
a. Performance Check
(1) Press TI pushbuttons as listed in (a) through (c) below:
(a) [RECALL] [0] and AUTO CAL (off).
(b) [RECALL] [.], [CNTR FREQ], and [7].
(c) MEASUREMENT/ENTRY [OFFSET], ENTRY [RDNG OFFSET],
FREQUENCY TUNE [AUTO], and BANDWIDTH [20 Hz].
(2) Slowly tune frequency control to the first frequency above 1 MHz for a dBmO
indication of 0.30 dBmO, and subtract 1 MHz from frequency reading. The difference will
be greater than +3 Hz.
(3) Repeat (2) above to first frequency below 1 MHz for an indication of 0.30 dBmO
and subtract reading from 1 MHz. The difference will be greater than -3 Hz.
(4) Repeat (1) through (3) above for 400 Hz 50 Hz bandwidth and for 3100 Hz
1000 bandwidth.
b. Adjustments. No further adjustments can be made.
a. Performance Check
(1) Press TI pushbuttons as listed in (a) through (c) below:
(a) [RECALL] [0] and AUTO CAL (off).
(b) [RECALL] [.], [CNTR FREQ] and [7].
(c) MEASUREMENT/ENTRY [OFFSET] ENTRY [RDNG OFFSET],
FREQUENCY TUNE [AUTO], and BANDWIDTH [400 Hz].
(2) Tune TI frequency control to the first frequency above 1 MHz for an indication of
-60 dBmO. Subtract 1 MHz from frequency reading. The difference will be equal to or less
than +1100 Hz.
(3) Repeat (2) above to the first frequency below 1 MHz.
Subtract frequency
reading. The difference will be equal to or less than -1100 Hz.
(4) Repeat (1) above for 20 Hz bandwidth.
(5) Repeat (2) and (3) above for an indication of -30 dBmO. Subtract frequency
readings above and below 1 MHz. The difference will be equal to or less than 45 Hz.
(6) Repeat (5) above for an indication of -60 dBmO. The difference will be equal to
or less than 90 Hz.
b. Adjustments. No further adjustments can be made.
