D-PRS Calculator

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This page calculates the necessary GPS message (C1 message on most Icom radios) to use your Icom radio in GPS mode (not GPS-A mode) with D-PRS. Your browser must have JavaScript enabled to use this page.

MyCall is the complete callsign entered in your radio including the ID (8th) character.

Note that the symbol code occupies the first four characters of the GPS message (space padded) and that there is a checksum appended to the text preceded by an asterisk.

The D-PRS CallSSID can be used to look up your station on any APRS-IS database.

MyCall
8 Char Max
Right Space Padded
D-PRS Symbol GPS(C1) Message

Symbol: Symbol

Note that some GPS Messages with special (non-alphabetic) characters may cause an error.
D-PRS CallSSID:
  Input into TX Message C1:

APRS® - APRS Software and Bob Bruninga, WB4APR.
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