Welcome to Amateur Radio Station KA1UDX and
APRS is a system originally developed in 1992 by
Bob Bruninga, WB4APR, which uses
amateur radio to transmit position reports,
weather reports, and messages between users. Mobile stations are equipped with
GPS navigation systems to provide real-time positioning reports.
Weather Station CWOP-AP704
Bob's original development of dos APRS, allows it to run on standard DOS based
personal computers with minimal system requirements. System hardware
requirements only dictate the system have from 512kB to 640kB of RAM. Systems
such as inexpensive palmtops (HP 100/200LX), single/dual floppy 8086/8088
notebooks, right up to today's highest powered desktop and notebooks can all run
the DOS version of APRS.
In mid 1994, Mark and Keith Sproul released a version of APRS known as MacAPRS.
The Mac version offered many new features to the APRS community not previously
available to DOS based systems.
Early in 1996, a much-anticipated version of APRS was released for the MS
Windows platform. Offering the ability to read and write Mac APRS map files, and
read DOS APRS files, this was the prelude to today's ever-popular WinAPRS
Since the originally development of APRS, its popularity has grown immensely.
Today there are versions designed to run and are fully accessible from the
Internet (javAPRS). Versions of both the DOS and Windows version of APRS include
the ability to converse with others across the Internet in real-time.
There is constantly new developments taking place in the APRS world including
software for many Smart Phones and new equipment such as transceivers that are
Some time prior to 2001, Roger Barker, G4IDE (SK), created a wonderful APRS
program called Ui-View. This is a Windows based program, that works on all
versions of Windows. There are many 3rd party add-on's available and plenty of
support. This is the software presently used here at ka1udx. For UI-View go to -
APRS is a constantly evolving technology with new developments occurring daily.
Join the fun today.
APRS is a registered trademark of APRS Software and Bob Bruninga, WB4APR.