Raytheon R20 Operation/Reference Manual

Raytheon
Model R20
Raster Scan Radar System
OPERATION REFERENCE GUIDE
1 . To turn set on press
CS'fEiY.D~F .
To transmit press
i
XMIT/OFF ..
To turn off press l)TBY.
1
Q£.(
and
f~_[T
OFF together.
2. To change:
: Ranges; Press~·GE-and
A. or 'Y key.
: Gain Level; Press GAIN and
A. or 'Y
key.
: Sea Clutter; Pres; SEA-CL and A or 'Y key.
: Rain Clutter; PressRA1"N-CL and A. or 'Y key.
: Tune Level; Press-fUNi[ and A. or 'Y key.
Brilliance:
VRM:
EBL:
Hold key depressed for desired brilliance level.
Hold VRM- key depressed for reversed _\[RM symbol. Use A or 'Y key
to set VRM distance. Press VRM key to turn off.
Hold
EBL
key depressd for rev.ersed
EAL
symbol. Use A. or 'Y key to
set bearing line on target. Press EB_L key to turn off.
Target Alarm: Hold.ALM key depressed for reversed ~LM symbol. Use
A. or 'Y key to
set alarm range. Press_ALM._ key to turn off.
Select Mode: Press'SELECT key until desired symbol appears onscreen (F. I, E. H. L.
or T). Whe;desired symbol appears. p'ress S_ET to turn function HONH or
"OFFH.
SHM:
Press 5-HM to momentarily remove the ships heading line from display
on the CRT.