KWS Electronic VAROS 109, Руководство пользователя

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Chapter 7 - Analyzer
10911 V01.06
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Chapter 7
Analyzer
The safest way to look for a satellite position is in the analyzer mode. By rotating the dish, one tries
to locate a satellite system while adjusting the transponder to maximal level.
The picture below shows an analyzer screen.
The level grid is 10 dB/DIV. The start and stop frequencies are shown at the bottom of the screen.
The level display (top right) and the frequency display (top centre) relate to the cursor position.
7.1 Accessing the analyzer
Press
ANALYZ
to initiate the analyzer. The status of the measuring receiver is now important. If the
receiver is not tuned to a channel (e.g.
ESC
was previously pressed), the analyzer sweeps over the
entire measuring range (FULLSPAN). But if the instrument is in tuned mode (measuring mode), the
analyzer shows a smaller section of the frequency spectrum (SPAN1) above and below the
measuring frequency. When the UNICABLE control is active, the analyzer displays the frequency
spectrum above and below the centre frequency of the last UB slot that was activated.
7.2 Frequency segment (SPAN)
The frequency segment (SPAN) can be changed.
In “FULLSPAN” mode, the frequency segment spans the entire measuring range. The frequency
segment (SPAN) can be changed using the
Up
and
Down
arrow keys.
The table below provides an overview of the frequency segments that may be set.
Total (FULLSPAN) SPAN1 SPAN2
910 – 2150 MHz 300 MHz 76 MHz
7.3 Cursor
The cursor appears as a vertical red line on the screen. You can use the
<-
and
->
keys to move the
cursor within the frequency segment. The current cursor frequency is shown in the upper centre of
the screen. A new cursor frequency can also be entered with the numeric keypad and confirmed with
ENTER
. The cursor is then shifted to the new position, or the frequency segment is shifted so that
the cursor is in the middle if the distance to the frequency limits allows it.