HP ESA-L1500A, Руководство пользователя и калибровки

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294 Chapter 9
Performance Verification Tests
22. Tracking Generator Level Flatness, Options 1DN and 1DQ
4. Press
RATIO
on the measuring receiver. The measuring receiver
readout is now in power levels relative to the power level at 50 MHz.
5. Set the spectrum analyzer center frequency to 100 kHz. Press
Single
Sweep
.
75
Ω
RF Out only: Set the spectrum analyzer center frequency to
1 MHz.
6. Enter the appropriate power sensor Cal Factor into the measuring
receiver as indicated in Table 9-24 .
7. Record the power level displayed on the measuring receiver as the
Level Flatness in Table 9-24 .
8. Repeat step 5 through step 7 to measure the flatness at each center
frequency setting listed in Table 9-24 . The
↑
(step-up key) may be
used to tune to center frequencies above 100 MHz.
75
Ω
RF Out only: Repeat step 5 through step 7 to measure the
flatness at the frequencies above 1 MHz listed in Table 9-24
.
Table 9-24 Tracking Generator Level Flatness Worksheet
Center
Frequency
Level Flatness
(dB)
Cal Factor
(MHz)
100 kHz
a
0.1
300 kHz
a 0.3
500 kHz
a 0.3
1 MHz 1
2 MHz 3
5 MHz 3
10 MHz 10
20 MHz 30
40 MHz 50
50 MHz 0 (Ref) 50
80 MHz 100
100 MHz 100
200 MHz 300
300 MHz 300
400 MHz 300
500 MHz 300