GPS6 - DGPS STATUS
There are several windows in this display, the left hand windows are divided into control
and configuration windows. The right hand window displays all the corrections that are
being received. Shown below is the GPS6 screen.
MX51x 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 MX smart antenna beacon
receiver. Searching indicates that the beacon receiver is searching for the appropriate
frequency and/or modulation of the beacon transmitter in automatic search mode.
No lock indicates that the beacon receiver is not receiving DGPS corrections from
the selected station 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 EDIT 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 associated with the frequency
to which you programmed the receiver. If you move to another region that uses a frequency
and name you previously entered, the receiver will display the previously entered name.
You can enter a new name for any manually tuned frequency at any time.
Use the cursor key to move down the screen again and program the frequency you
desire. The receiver will automatically update the Station ID. Once the beacon station
transmits its location, the MX51x will calculate the distance between the reference
station and the receiver, otherwise this will be blank. You can usually find current beacon
status, location, and operating information from the governing country’s Coast Guard or
Maritime Safety Administration.
When you are in manual tuning mode, pressing the EDIT key will bring up the cursor on
the Frequency. You can only complete the manual tuning operation by pressing the EDIT
key when the Frequency is highlighted.
Program the frequency you desire and press the EDIT key. The CDU will automatically
update the Station ID. Once the beacon station transmits its location, the CDU will
calculate the distance between the reference station and the receiver.
You can usually find the current beacon status, location and operating information from the
governing country’s Coast Guard or Maritime Safety Administration or in the Internet.
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