Fluke 9640A Series, Instruction Manual

Page: 207 / 324

Calibration
Performance Test
5
5-17
12. Set the UUT as follows:
Frequency 125 MHz
Level +13 dBm
Mod Rate 1 kHz (Sine)
FM Deviation 100 kHz
Output
OPER
Modulation OFF
13. Use the measuring receiver autotune feature to tune to the input signal and when
tuning is complete set the UUT to
Modulation ON
.
14. Measure the FM deviation. Verify that the measured deviation is within the tolerance
listed in Table 5-10.
15. Repeat step 15 for the remaining FM deviation test points listed in Table 5-10. When
setting a new carrier frequency select
MODULATION OFF
and repeat step 14 prior to
repeating step 15.
Table 5-10. FM Deviation Test
Frequency Modulation
Rate
Deviation Tolerance
1 kHz 100 kHz 103.0 kHz – 97.0 kHz
100 kHz 100 kHz 103.0 kHz – 97.0 kHz
1 kHz 300 kHz 309.0 kHz – 291.0 kHz
125 MHz
200 kHz 300 kHz 309.0 kHz – 291.0 kHz
1 kHz 1 MHz 1.030 MHz – 0.970 MHz 1 GHz
300 kHz 1 MHz 1.030 MHz – 0.970 MHz
Note
In order to minimize Leveling Head interchange, the following tests are
divided into 50
Ω
and 75
Ω
sections.