94
Version 2.0
Operator’s Manual
GPS
GPS
Several GPS and DGPS screens are available under the
GPS
function
key. The
GPS/DGPS
functions are highly interactive with these
CFG1
menu selections:
¾
GPS - sets the lowest elevation at which a satellite will be tracked.
¾
DGPS - sets the internal beacon receiver to Auto, DGPS only, or
Off.
GPS1 - GPS Status Screen
There are two windows in this display. The left window has twelve
graphic
Power Bars
representing the twelve GPS receiver channels of
the MX421 antenna. The
PRN
(Pseudorandom Number) under each
power bar represents the satellite ID number assigned or being tracked
on that channel. The power bars indicate the valid receiver power
range from 30 to 50. Any portion of the power bar which is filled in,
indicates that a satellite is being tracked on that channel. If a power bar
is empty, but a PRN number is labeled under the power bar, then the
identified satellite is not currently being tracked.
The graphic on the right hand side of the screen indicates where the
satellites are relative to your present position. The outer ring repre-
sents 0° elevation. The inner ring represents 45° elevation. The + sign
represents 90° elevation and your present position. Under normal con-
ditions, the best satellites to track are usually between 15 and 75 de-
grees in elevation.
GPS 2 through GPS 5 screens are skipped under normal operation.
GPS2 - GPS Health Screen
There are two windows in this display, the top window is a table indi-
cating which satellites are reported Healthy or Unhealthy by the satel-
lite almanac. The
PRN
(Pseudorandom Number) ID table is divided
into columns and rows. The rows represent the 10’s digit of the ID
Summary of Contents for MX420
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Page 13: ...viii Version 2 0 Operator Manual Table of Contents ...
Page 181: ...168 Version 2 0 Operator s Manual Automatic Identifaction System ...
Page 183: ...170 Version 2 0 Operator s Manual Datum List ...
Page 231: ...Place Stamp Here ADivision of NAVICO Inc 23868 Hawthorne Blvd Suite 201 Torrance CA 90505 USA ...
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