Specifications

NOTE:
If the Loran TD conversion is chosen, you must enter the local Loran
chain identification for the master and slaves. Do this by selecting
"Setup Loran TD" at the bottom of the "Coordinate System" menu and
select the ID. Press
EXIT to erase this menu.
Configure Loran TD menu.
Map Fix
Map Fix is used with charts or maps. This system asks for a reference po-
sition in latitude/longitude, which you take from a marked location on the
map. It then shows the present position as distance on the map from that
reference point.
For example, if it shows a distance of UP 4.00" and LEFT 0.50", you then
measure up four inches and to the left a half-inch from the reference point
on the map to find your location.
To configure a map fix:
To use this format, you need to follow these steps in order. First, take your
map of the area and determine a reference latitude/longitude. (Note: in order
for this system to work, the latitude/longitude lines must be parallel with the
edge of the map. USGS maps are parallel, others may not be. Also, this
works better with smaller scale maps.) The reference position can be any-
where on the map, but the closer it is to your location, the smaller the num-
bers will be that you'll have to deal with.
Once you've decided on a reference position, you can save it as a waypoint.
See the waypoint section for information on saving a waypoint. Save the ref-
erence position as a waypoint. Exit from the waypoint screens.
Now press
MENU|MENU|↓ to GPS SETUP|ENT|↓ to COORDINATE SYSTEM|ENT|↓ to
SETUP MAP FIX|ENT. The following screens appear, and MAP SCALE is high-
lighted. Press
ENT and enter the map's scale. This is generally at the bottom
of the paper map. It's shown as a ratio, for example 1:24000. Press
EXIT and
the unit returns to the Configure Map Fix screen.
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