APRS

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APRS. Use 144.390MHz.

Sites

Useful things

APRS queries

?APRS?

Send ?APRS? to a station to get a list of the queries the station supports.

?WX?

Send ?WX? to CQ to get a list of all WX stations within your range.

Others

  • ?ABOUT (?APRSV, ?VER) - get the station's software version, etc.
  • ?APRSD - get a list of stations the station has heard directly.
  • ?APRSH - get a statistic on stations the station has heard, including via digipeaters, the internet, etc.
  • ?APRSH callsign - query if the station has heard callsign.
  • ?APRSL - get a list of stations the station has heard locally in the last 30 minutes.
  • ?APRSM - check if the station has any messages for you.
  • ?APRSO - prompt station to send out all objects it is originating.
  • ?APRSP - prompt station to send out a position beacon.
  • ?APRSS' - get the station to return its status.
  • ?APRST (?PING?) - get the station to return the track a packet takes.

APRS services

WHO-IS

Look up a callsign by sending it to WHO-IS. For example, sending VE7CXZ results in VE7CXZ/A/Andy Smith/BC/Canada.

SMSGTE

Send a text to a North American cellphone by sending a message to SMSGTE. To send 'Hello!' to 250 813 2494, send the message @2508132494 Hello! to SMSGTE.

METAR

Get the weather for a METAR code by sending a message to METAR.

QRU

Get nearby objects by sending messages to QRU. Sending INFO 250 will return a summary of all objects within a 250km radius.days