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Vaisala RVP900 - Page 117

Vaisala RVP900
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Blank output triggers within AZ and EL sectors: NO
Sector#1 InUse:NOAZ: 0.0,0.0 EL:0.0,0.0
Sector#2 InUse:NOAZ: 0.0,0.0 EL:0.0,0.0
Sector#3 InUse:NOAZ: 0.0,0.0 EL:0.0,0.0
Sector#4 InUse:NOAZ: 0.0,0.0 EL:0.0,0.0
Sector#5 InUse:NOAZ: 0.0,0.0 EL:0.0,0.0
Sector#6 InUse:NOAZ: 0.0,0.0 EL:0.0,0.0
Sector#7 InUse:NOAZ: 0.0,0.0 EL:0.0,0.0
Sector#8 InUse:NOAZ: 0.0,0.0 EL:0.0,0.0
To choose whether you use blanked noise triggers all the time, use the following parameter.
Blank output triggers during noise measurement : NO
To choose whether you use blanked noise triggers when changing pulsewidth, use the
following parameter.
Blank output triggers when changing pulsewidth : YES
Times to wait (miliseconds) before/after PW change: 0 0
Transmitter- and Receiver-related Triggers
You can
specifiy which triggers are transmitter-related and which are receiver-related.
Answer YES or NO responses for each trigger line, for the two polarization control lines, and
for the timing of the phase control lines.
Answer NO for any trigger that is involved with the pre–fire timing of the transmitter.
If you enable the burst pulse tracker, you probably want to assign a YES to some of your
triggers so that they remain fixed relative to the burst itself. See 7.2.4 Burst Pulse Tracking
(page 177).
The trigger outputs are defined by:
Which RVP900 trigger outputs are timed relative to the transmitter pre–fire sequence
You can move these triggers left/right using the L/R keys in the Pb plot.
These triggers are also skewed in response to Burst Pulse Tracking. See 7.2.4 Burst
Pulse Tracking (page 177).
Which RVP900 trigger outputs are relative to the received target ranges
These triggers remain
fixed relative to "receiver range zero", and are not aected by
the L/R keys or by tracking.
For the trigger start times, move triggers that fire the transmitter, either directly or indirectly
as a group when hunting for the burst pulse and moving it to the center of the FIR window.
Fix triggers that function as range strobes relative to range zero, that is, the center of that
window, and the center of the burst. This distinction is important when the transmitter's
pre–fire delay drifts with time and temperature.
Chapter 5 – TTY Non-volatile Setups
115

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