TB 9-6625-2329-24
Table 25. Distortion Accuracy
Measure receiver
Test instrument
distortion
DATA and
DATA and
indications
ENTER/UNITS
ENTER/UNITS
(<% )
(MHz)
(kHz)
15
100
0.5
15
25
0.5
46
25
0.5
93
25
0.5
93
50
0.5
187
100
0.5
375
200
0.5
900
400
0.5
(8) Press PARAMETER FM pushbutton and press ON/OFF OFF key.
(9) Press PARAMETER FM pushbutton, enter DATA 40 numerical value, and
press ENTER/UNIT kHz key.
(10) Set up measuring receiver to measure AM with PEAK + detection, 300Hz high
pass and 15kHz low pass filters on.
(11) Press TI PARAMETER RF pushbutton, enter DATA numerical value, and
press ENTER/UNITS MHz key for each row in table 26. Measuring receiver will indicate
within limits specified.
Table 26. Incidental AM
Measuring receiver
Test instrument
DATA and
modulation
ENTER/UNITS
indications
(MHz)
(<%)
20
0.1
100
0.1
375
0.1
999
0.1
(12) Press PARAMETER FM pushbutton and press ON/OFF OFF key.
(13) Press pushbuttons as listed in (a) through (c) below:
(a) PARAMETER RF, enter DATA 100 numerical value, and press
ENTER/UNITS MHz key.
(b) PARAMETER FM, enter DATA 100 numerical value, and press
ENTER/UNIT kHz key.
(c) PARAMETER FM and press ON/OFF EXT AC key.
(14) Press pushbuttons on audio analyzer as listed in (a) through (c) below:
(a) Source FREQ - 30 Hz.
(b) Source LEVEL - 1 V.
(c) Source 600 (SPCL 77).
24