98
Version 2.0
Operator’s Manual
GPS
GPS6 - DGPS STATUS
There are several windows in this display, the left hand windows are
divided into control and configuration windows. The right hand win-
dow displays all the corrections that are being received. Shown below
are two GPS6 screens, the left showing the MX420/2 DGPS status
screen while the right showing the MX420/8 screen. Note the slight
difference in the amount of information available between the two
models.
MX420/2 GPS6 Screen MX420/8 GPS6 Screen
Status
will tell you whether the correction data is being decoded is
error free or not. Normally,
Status
will indicate either
DGPS mode Off,
DGPS OK
,
Tracking
or
Searching
(Automatic search mode) or
No
Lock
(Manual tuning mode).
DGPS OK
indicates that RTCM SC-104
DGPS corrections are being received without errors within the
Age
Limit
set in
CFG1
DGPS
. These information originates from the MX421B
beacon receiver.
Searching
indicates that the beacon receiver is search-
ing for the appropriate frequency and/or modulation of the beacon
transmitter in automatic search mode.
No lock
indicates that the bea-
con receiver is not receiving DGPS corrections from the selected sta-
tion in manual tuning mode. You might see the label
Tracking,
which
indicates that a MSK beacon signal is present but DGPS corrections
are not being received. This is usually caused by high noise on the
beacon receiver or external device.
If you press the
E
key, you can select between
Automatic
beacon
search mode,
Manual
beacon tuning mode, or
Off
. When the receiver
is in the
Manual
tuning mode, you can use the cursor key to scroll
down into the large window below
Station Selection
and edit the
Reference Station
name. The name you enter will always be associ-
ated with the frequency to which you programmed the receiver. If you
move to another region that uses a frequency and name you previ-
ously entered, the receiver will display the previously entered name.
You can enter a new name for any manually tuned frequency at any
time.
Summary of Contents for MX420
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