I
-
View
Ingress
Test
Description
The view ingress test measures any unwanted signals from outside the cable
TV system which can cause degradation of the receiver’s quality.
The view ingress test places a reference marker at the peak carrier level
and activates the delta marker so that you can position it on the unwanted
signal. The LISTEN AT MKR function allows you to listen to the signal to
help determine the source.
Note that this test is only available in Channel mode.
17:83:58
DEC
86,
1993
@
CHRNNEL
pl,(s%O
dB
REF 36.8 dBm
MKR
a
3.880 MHz
-60.39
dB
SMPL
1
:
.
:
:
:
I
CEHTER 177.808 MHz
SPAN 6.888 nH2
YRES BW 100 kHz
WUBW
i
kHz SWP 138
nlsec
eEol0
VIEW
CO-CNNL
LISTEN
hT
MKR
188 kHz
RES BW
38
kHz
RES BW
WRIN
MENU
RT
Figure 8-19. View Ingress
8-46
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