Interphase Color Twinscope, Operation Manual

Page: 52 / 88

52
Plot (Track Plot) View
If your separate Loran C, Decca or GPS receiver has
the proper NMEA version #0183 output capability,
or if you own the
Interphase Star Pilot GPS , Pilot
GPS or Interphase Pilot Loran , you can easily
interface the unit to the Twinscope to show both
digital and graphic navigation information. Possible
information obtained from a navigation receiver can
include track plotting, digital Lat/Lon readings,
course and distance to way points. The
Twinscope
can also instantly mark positions with several
different graphic symbols. These functions will not
work unless you are able to successfully interface a
navigational instrument such as a Loran C, Decca or
GPS receiver to the
Twinscope .
From the Command Center select the "Plot View"
and press the " GO " soft key to bring up the menu
showing the features and adjustments for this view.
Range
The " RANGE " soft key calls up the sub-menu which
lets you turn on and off an automatic plot ranging
function by pressing the soft key labeled "
TRACK ".
This feature will, for example, automatically increase
the track plot range if your position goes off the
screen. You can manually adjust the plotter range by
using the "
Range " up/down soft keys in this sub-
menu.
The Track Plot square on the display shows the
current plotter range (1/4, 1/2, 1, 2, 4, 8, 16, 32, 64,
128) in statute (U.S.) or nautical miles, depending on
the units of measurement selected.
Mark
Pressing the " MARK " soft key allows you to mark
your current position on the track plot screen with
one of three graphic icons - an anchor, a fish or a
flag. Each icon can be used up to ten times on a track
plot for a total of 30 possible marks. When power is
removed from the
Twinscope , the marks are erased.