Fluke 96000 Series - Page 118

96000 Series
Service Manual
3-76
Table 3-31. Microwave Output AM Rate Test
Frequency Modulation Rate Depth Tolerance
30 MHz
20 kHz 50 % 19.999 0 kHz to 20.001 0 kHz
100 kHz 50 % 99.99 0 kHz to 100.01 0 kHz
6. Set the UUT as follows:
Frequency 125 MHz
Level +14 dBm
Mod Rate 1 kHz (Sine)
AM Depth 90%
Output OPER
Modulation ON
7. Use the Measuring Receiver autotune feature to tune to the input signal
and measure the AM depth. Verify that the measured depth is within the
tolerance listed in Table 3-32.
8. Repeat step 7 for the remaining AM depth test points listed in Table 3-32.
Table 3-32. Microwave Output AM Depth Test
Frequency Modulation Rate Depth Tolerance
125 MHz
1 kHz 90 % 87.2 % to 92.8 %
100 kHz 90 % 87.2 % to 92.8 %
1 GHz
1 kHz 90 % 87.2 % to 92.8 %
20 kHz 90 % 87.2 % to 92.8 %
9. On the UUT, push the Modulation Select softkey and select frequency
modulation (FM).
10. Set the UUT as follows:
Frequency 62.5 MHz
Level +13 dBm
Mod Rate 1 kHz (Sine)
FM Deviation 300 kHz
Output OPER
Modulation OFF
11. Use the measuring receiver autotune feature to tune to the input signal
and when tuning is complete set the UUT to Modulation ON.
12. Measure the FM rate. Verify that the measured rate is within the tolerance
listed in Table 3-33.