What is APRS ?
VK4GO -- JA1OGS
Automatic.Position.Report.System

Packet radio has great potential for passing large pieces of message traffic from one station to another. However, with the internet growing by leaps and bounds a lot of folks, including myself, seem to become disenchanted with packet. Then in 1993 I discovered APRS! (Of course some of us discovered APRS before then but I digress…). It was always difficult to apply packet to real time events. Especially since these events seem to always be short lived. APRS can avoid this problem. It is not limited to a connected network or its complexity. APRS permits any number of stations to exchange data just like voice users do on a voice net. Any user can send information and all stations receive it or transmitted it. Secondly, APRS recognized one of the greatest real-time needs of any special event or emergency. That is tracking of key assets! For instance…

Where is the event leader ?
Where are the emergency vehicles ?
What is the weather at various points in the country ?
Where is a mobile\base amateur station ?
Where is the hurricane ?
Where is my car  now (if stolen) ?
Where is a DX station?
Where is a Jota scout station ?

To answer these questions,
APRS is a full featured automatic vehicle location and status reporting system too.
All this is happening here in Australia & all over the world on the country allocated APRS simplex frequency for is Australia 145.175MHz.

PS: There are a few HF APRS Gateway`s
This is great for travel in the country HF-VHF
See the world APRS frequency webpage here.

Here in Far North Queensland (Atherton) we have a VHF APRS Digipeater VK4WAT-3 with live Igate feed from VK4GO

So if you have a old Packet,SSTV,PSK-31 modem or a soundcard interface then you can monitor the APRS traffic flow VHF 1200bd Packet for activity.

The UI-View APRS software and maps are all free, but only for a hamradio station with a Amateur Callsign and no SWL or Commercial !.


See the APRS stations list in Japan
See the APRS stations list outside Japan
Return to the APRS Page ...... Double click this line ..
Link to: JA1OGS APRS-Link Page
Link to: UI-View APRS Download Page


....Click the Icon to get Page hits info Worldwide