JRC Radar 3000 Instruction Manual page 40

Menu Item Description
FUNCTION
Selects #2VRM.
Selects #2EBL.
Doubles the size of the image at a
given position on the PPI screen.
Selects true or relative motion dis-
play.
Selects the heading mode.
Defines the receiver tuning mode.
Display the past tracks (wakes) of the
echo as an after-glow on the PPI
screen. The operator can select the
after-glow time between "SHORT"
and "LONG".
For the strongest echo, a short after-
glow lasts approx. 15 to 16 seconds
and a long after-glow lasts approx. 1
minutes (62 to 63 seconds).
OPERATION 33