This document explains how to set up GPS TX MODE (DV-G), not GPS-A, which will show your position on other D-Star transceivers & the APRS servers.

To set up your IC-E2820 & IC-E92D to use GPS (DPRS) mode you will need to create a checksum code to enter in the GPS message in the 2820 & the 92, this can be done by using the D-PRS Calculator  created by Pete Lovell AE5PL.

To set up your IC-E2820 to send GPS Data (DV-G) you need to set the following parameters,

• MENU > DV GPS >  GPS SENTENCE = RMC & GGA on, all others OFF
• GPS TX = GPS (not GPS-A)
• GPS AUTO TX = OFF (GPS data will be transmitted when you press your PTT)
• GPS MESSAGE = (enter your checksum code created by the D-PRS calculator)

When your 2820’s GPS is receiving a valid signal the GPS symbol will stop flashing (this can take some time). So with DVG on your 2820’s display you should have successful GPS data transmission when you press your PTT.

To set up your IC-E92D,

• MENU > DV SET MODE >
• GPS TX MODE = GPS > SENTENCE = RMC & GGA = ON, all others OFF.
• GPS AUTO TX = OFF (GPS Data will be transmitted when you use your PTT)
• MENU > MESSAGE/POS > GPS > (enter your checksum code created by the D-PRS calculator)

On your 92’s display you should see DV-G for successful GPS data transmission.
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The Checksum code is unique to the callsign & the APRS symbol that you select in the D-PRS Calculator, for example the code below is what I use in my IC-E92D refers the Rover symbol as I’m usually walking with my dogs when using my 92.

LP  MIKE DSTAR*5A
^^ there are two spaces between the P & M

The code in my mobile 2820 is

MV  MIKE DSTAR*5D
^^ two spaces between the V & M

and the code in my shack 2820

BN  MIKE DSTAR*4A
^^ two spaces between the N & M

By setting my GPS TX MODE to GPS and not GPS-A all the above e xamples will be seen both on other 2820’s & 92’s (world-wide through the DStar network) and the APRS servers such as APRS.fi

© WFRG 2009.