TB 9-6625-2323-24
Table 11. Spectral Purity
Test instrument
Spectrum analyzer
Maximum
reference frequency
indication
10
MHz
10
MHz
----------
6
10
MHz
10
MHz
20
MHz
-30
10
MHz
10
MHz
30
MHz
-30
20
MHz
20
MHz
----------
6
20
MHz
20
MHz
40
MHz
-30
20
MHz
20
MHz
60
MHz
-30
30
MHz
30
MHz
----------
6
30
MHz
30
MHz
60
MHz
-30
30
MHz
30
MHz
90
MHz
-30
40
MHz
40
MHz
----------
6
40
MHz
40
MHz
80
MHz
-30
40
MHz
40
MHz
120
MHz
-30
350
MHz
350
MHz
----------
6
350
MHz
350
MHz
700
MHz
-40
350
MHz
350
MHz
1050
MHz
-40
1.6
GHz
1.6 GHz
----------
6
1.6
GHz
1.6 GHz
3.2 GHz
-40
1.6
GHz
1.6 GHz
4.8 GHz
-40
2.1
GHz
2.1 GHz
----------
6
2.1
GHz
2.1 GHz
4.2 GHz
-60
2.1
GHz
2.1 GHz
6.3 GHz
-60
2.1
GHz
2.1 GHz
8.4 GHz
-60
2.1
GHz
2.1 GHz
10.5 GHz
-60
2.1
GHz
2.1 GHz
12.6 GHz
-60
2.1
GHz
2.1 GHz
14.7 GHz
-60
2.1
GHz
2.1 GHz
16.8 GHz
-60
3.6
GHz
3.6 GHz
----------
6
3.6
GHz
3.6 GHz
7.2 GHz
-60
3.6
GHz
3.6 GHz
10.8 GHz
-60
3.6
GHz
3.6 GHz
14.4 GHz
-60
3.6
GHz
3.6 GHz
18.0 GHz
-60
7.0
GHz
7.0 GHz
----------
6
7.0
GHz
7.0 GHz
14.0 GHz
-60
(5) Reduce all outputs to minimum.
(6) Disconnect TI from spectrum analyzer.
b. Adjustments. No further adjustments can be made.
12. Amplitude Modulation
a. Performance Check
(1) Connect equipment as shown in figure 4.
(2) Set audio analyzer controls as listed in (a) through (d) below.
(a) PRGM 99 ENTER RCL.
(b) 600 : output.
(c) SOURCE FREQ to 1, kHz.
(d) SOURCE LEVEL to 0.7, V.