Blog
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The APRS-IS passcode, and what receive-only means
What the APRS-IS passcode is, what a login can do without one, and how APRS Connect handles the passcode, receive-only mode, filters and server regions.
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APRS SSIDs explained: what -7, -9, -5 and the others mean
What the number after the dash in an APRS callsign means, the conventional use of each SSID from -0 to -15, and how to choose one for a phone.
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What is APRS?
The Automatic Packet Reporting System is a live data network run over amateur radio: position beacons, messages, and weather, relayed by digipeaters and bridged to the internet. Here is how it fits together.