I
-
Cross
Modulation
Test
Description
The cross modulation test measures the first 15.7
kHz
cross modulation
sideband relative to the visual carrier of the channel.
Note that this test is only available in Channel mode.
16:56:38
DEC
66,
1993
CENTER 433.258 NH2
SPAN
B
HZ
YRES BW
100
kHz
YUBW 100 kHz
HSWP
20.0
rnEIC
NRIN
MENU
RT
Figure 8-18. Cross Modulation
Modulation must be turned off in order to perform this test.
The analyzer is tuned to the carrier frequency and put in zero span. A fast
fourier transform is performed on the signal and the magnitude of the
15.7
kHz
incidental modulation is measured relative to the carrier.
8-44
I-
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