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Use
the
Peak
7Jhble
to
List
the
Displayed
Signals
function.
The peak table function can be used to list the amplitude and frequency
of up to 10 of the signals being displayed. This is done by pressing a
single key, without having to put a marker on each signal. Multiple signals
from components, such as oscillators and mixers, or from surveillance are
automatically identiEed and listed. The information is updated at the end of
each sweep. The peak table display can easily be copied to a printer.
It is often helpful to have the cable TV analyzer sort the signals. The peak
table feature marks and list the signals based on the criteria selected. The
signals can be sorted by increasing frequency or decreasing amplitude. The
peak table function can be set to select all of the displayed signals, or only
those signals above or below a specified display line.
Note that a signal must have a peak of at least 6
dB
to be recognized by the
peak table function. This value can be changed using the peak excursion
REF
48.8
dBm"REF
48.8
dmn”
AT
10
dBAT
10
dB
SPAN
PEAK
LOG
'
10
dB/
a
SPAN
ZOOM
kk
Amolltude
Pk
Freq
MHZ
Frea
(MHz1
Amplitude
LAST
SPAN
3
603
20.34
dk3””
8
4
905
19
14 dBm"
9 PEAK
1499
15.66
dBmV
iO
ZOOM
CENTER
900
MHz
SPAN
1
800
GHZ
RES
BW
3.0
MHZ "BW
1
MHZ
SWP
35
0
msec
/
Figure 3-2. Peak Table Display
3-6
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