I
-
Channel Measurements
Making Channel Measurements
I
13:57:31
JAN 25, 1995
@
CHANNEL
m
(ST01
REF -8.4 dBmV
j!fiT
0
dB
MKR 57.375 MHz
-
-44.87 dBmV
GATE
I
SMPL
I
II
:
:
ON
m
LOG
ii/
AVERAGE
ON
OFF
:
(B).
dBc (IN1
PREhHP
ON)
MhIN
MENU
START 53.745 MHZ
STOP 59.745 NHz
GRES BW
38
kHz
WVBW 186 Hz SUP
6.88
see
T
Figure
2.10.
See MORE INFO Screen
3. Perform the following steps if your analyzer has Option 107 installed and
you want to perform a gated (non-interfering) measurement (modulation
turned on). Note that you will only have gotten to this point if GATING is
set to NO.
a. Press GATE ON/OFF in the CARRIER/NOISE menu to perform a gated
(non-interfering) measurement.
b. The analyzer will search for a quiet line and depending on the setting
of PAUSE it will either pause or automatically continue if it finds a
quiet line. If it does not End a quiet line it will display VIDEO SYNC NOT
RECOGNIZED. At this point you can remedy the reason, or if a quiet
line was not found because of noise, you can press LINE SEARCH to
reinitiate a quiet line search. Another possible reason for failure to End
a quiet line if that the input coupler is not in place with its coupled leg
connected to TV IN.
c. Entering line numbers and the softkey FLD BOTH/EVEN/ODD can be
used to manually search the vertical interval for a quiet line.
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