TB 9-6625-2329-24
b. Adjustments
(1) Remove TI top cover.
(2) Press pushbuttons as listed in (a) through (e) below:
RF,
(a) PARAMETER
DATA
100
enter
numerical
value,
and
press
ENTER/UNITS MHz key.
LEVEL, enter DATA 0 numerical value, and press
(b) PARAMETER
ENTER/UNITS dBm key.
AF,
DATA
1
(c) PARAMETER
enter
numerical
value,
and
press
ENTER/UNITS kHz key.
AM,
(d) PARAMETER
DATA
80
enter
numerical
value,
and
press
ENTER/UNITS % key.
AM and press ON/OFF INT/ON key.
(e) PARAMETER
(3) Set measuring receiver to measure AM Peak positive, with 300Hz high and
15kHz low pass filters on.
(4) Adjust R503 (fig 4) for a 80 1% indication (R).
(5) Press PARAMETER LEVEL pushbutton and press ON/OFF OFF key.
14. Phase Modulation
a. Performance Check
(1) Connect TI FM EXT to AUDIO ANALYZER HIGH OUTPUT.
(2) Press-SHIFT INSTR PRESET.
(3) Set measuring receiver to measure PM deviation positive peak with 300Hz high
pass and 15kHz low pass filters on.
(4) Press pushbuttons as listed in (a) through (c) below:
(a) PARAMETER RF, enter DATA 15 numerical value, and press
ENTER/UNITS MHz key.
(b) PARAMETER LEVEL, enter DATA 0 numerical value, and press
ENTER/UNITS dBm key.
(c) PARAMETER AF, enter DATA 1 numerical value, and press
ENTER/UNITS kHz key.
(5) Press TI PARAMETER M pushbutton, enter DATA numerical value, and
press ENTER/UNITS rad key for each row in table 20. Measuring receiver will indicate
within limits specified.