Links to useful software and information. (And friends of APRSIS)
AGW Packet Engine
KARC APRS Overlays page
G4ILO Shack
UK APRS Activity Maps
Spec APRS spec 1.0.1 PDF
Spec 1.1 APRS Spec 1.1 addendum
Spec 1.2APRS Spec 1.2 addendum proposals
HAAT PHG HAAT calculator
Pete Loveall's APRS server software
UZ7HO Sound Modem
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