
10. Frequency Response
Test
18. Set
[CF
STEP SIZE) to 100 Hz. Step analyzer (CENTER FREQUENCY)
from 100 Hz to 1
kHz
with
0J
and set function generator
FREQUENCY to center signal on display at each step. Press
MARKER
CPEAK
SEARCH
)
at each frequency. The MKR amplitude
should be -2
dBm
f0.6
dB.
Deviation 100 Hz to 1
kHz
100
kHzt0
4MHz
19. Connect equipment as shown in Figure 2-16.
SPECTRUM ANALYZER
FREQUENCY SYNTHESIZER
Figure 2-16.
Frequency Response Test Setup (100
kHz
to 60 MHz)
20. Press
@7ZX)
on the analyzer. Key in the following settings:
[CENTER FREQUENCY) .......................................
.4 MHZ
(FREQUENCY SPAN]
..........................................
.2
MHz
CENTER dB/DIV)
................................................
1
dB
21. Set the controls of the frequency synthesizer as follows:
FREQUENCY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.4
MHz
AMPLITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2
dBm
22. Adjust the output amplitude of the frequency synthesizer to place
the signal at the 8th graticule line.
23. Key in the analyzer settings as follows:
(jsTop)
................................................
.4
MHz
(START
FREQ)
.................................................
.O
Hz
24. Key in the frequency synthesizer settings as follows:
FREQUENCY . . . . . . . . . . . . . . . . . . . . . . . . . . .
.2,000,100
Hz
SWEEP WIDTH
. . . . . . . . . . . . . . . . . . . . . . .
3,998,OOO
Hz
25. Press TRACE A [CLEAR-WRITE] and [MAX) on the analyzer.
2-36 Performance Tests
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