ACCEPTANCE TESTING
6-16
AM scale shape
(1) Connect the test equipment as shown in Fig. 6-9.
(2) Set the UUT to
[RF Level]
0 dBm
[Carrier Freq.]
100 MHz
[AM]
1%.
(3) Measure the AM on the modulation meter at the depths shown in Table 6-11. Check that the
measured depths are within specification.
Table 6-11 AM DEPTHS
AM depth (%)
1 10 31 34
37
39.1
39.4
39.7
40 70
2 20 32 35
38
39.2
39.5
39.8
50 80
5 30 33 36
39
39.3
39.6
39.9
60 85
Phase modulation on AM
(1) With the test equipment set up as in Fig. 6-9, set the UUT to
[Carrier Freq.]
500 MHz
[RF Level]
0 dBm
[AM]
30%.
(2) Measure the incidental phase modulation which should be typically less than 0.1 radian.