APRS Automatic Position Reporting System
APRS is a system developed by Bob Bruninga, WB4APR, which uses amateur radio to transmit position reports, weather reports, and messages between users.
UiView 32 Software is free and allows you to monitor the position of stations via a radio and tnc or by connecting to the internet.
Checkout Ron VE1AIC’s site for info on APRS in Atlantic Canada.
Checkout Norm VE7BZC’s site for UIView maps and lots of info on APRS
You can find me on Google APRS as VE1JW-9