TB 9-6625-2330-35
(d)
BW/Avg, [Res BW], (Auto).
(e)
[Video BW], (Auto).
(f)
Marker, [Off].
(g)
SPAN, 2, ., 5 [kHz].
(11) Set spectrum analyzer to single sweep mode and take one sweep.
(12) Set spectrum analyzer marker to normal.
(13) Spectrum analyzer Mkr1 will indicate less than dB limit listed in table 13.
Test Instrument
Spectrum Analyzer
DATA ENTRY
DATA ENTRY
Center
dB
level
Span
indications
100 MHz
7 dBm
101 MHz
2.5 kHz
<-87 dBm
(14) Press TI pushbuttons as listed in (a) through (d) below:
(a)
(b)
FUNCTION-CARR LEVEL.
(c)
DATA ENTRY- 13 dBm.
(d)
FUNCTION-RF ON to on (red light lit).
(15) Using spectrum analyzer, verify that all non-harmonic spurious signals are less
than dBc limit listed in table 14.
(16) Repeat (14) and (15) for remaining frequencies listed in table 14.
Test instrument
Spectrum analyzer
DATA
DATA
ENTRY
ENTRY
Spurious signal
level
level
(MHz)
(dBm)
13
25 MHz
<-50 dBc
13
50 MHz
<-50 dBc
13
100 MHz
<-50 dBc
13
225 MHz
<-50 dBc
13
450 MHz
<-50 dBc
13
750 MHz
<-50 dBc
13
1500 MHz
<-50 dBc
b. Adjustments. No adjustments can be made.
14. Pulse Modulation
a. Performance Check
(1) Connect equipment as shown in figure 1.
(2) Press pulse generator pushbuttons for a pulse output as listed in (a) through (h) below:
(a) CHANNEL A.
(b) Period and enter 10m/kHz from data keyboard.
(c) Width and enter 5 m/kHz from data keyboard.
16 CHANGE 1
