(1)Connect the test equipment as shown in Fig. 5-7.

(2)On the UUT set:

Carr Freq

10 MHz

RF Level

0 dBm

FM1 Level

100 kHz

Mod On

 

Source On

 

(3)On the modulation meter select CAL, FM, 50 Hz ￿ 15 kHz filter.

(4)Measure the FM accuracy and distortion at the carrier frequencies shown in Table 5-22 checking that the results are within specification.

FM scale shape

Test procedure

(1)Connect the test equipment as shown in Fig. 5-7.

(2)On the UUT set:

Carr Freq

15 MHz

RF Level

0 dBm

FM1 Level

100 kHz

Mod On

 

Source On

 

(3)On the modulation meter select CAL, FM, 50 Hz ￿ 15 kHz filter.

(4)Measure the FM accuracy at the deviations shown in Table 5-23 checking that the results are within specification.

5-11

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Image 86
VXI 3002 manual FM scale shape