APRS

Lots of info

http://info.aprs.net/

Some notes on available hardware

Argent Data Systems

Products for amateur radio including APRS applications

http://www.argentdata.com/

2m Transmitter MX146 from SRB -- This is a 500 mW transmitter, $70

OpenTracker+ is open source / open hardware and uses a Motorola MCU.

Tracker2

These are controllers, connects a data stream (eg weather or gps) to a Kantronics TNC.

They now have a Tracker2 with a 5 watt 2m radio now. T2-301 $229

Byonics

http://www.byonics.com/

Maker of TinyTrak controllers and MicroTrak transmitters

Purchased way back in 20 Aug 2010 and tossed into a "future projects" box. I got a TinyTrak4 controller kit and a MicroTrak MT8000 8 watt transmitter.

2013-Sep-03 I am thinking of using the TinyTrak+MT8000 with a Garmin GPSmap as the NMEA data source, with the Garmin Power/NMEA cable. Then I can carry it on a bicycle.

TinyTrak4

Information from the source: http://www.byonics.com/tinytrak4/

The wiki: http://www.vk7hse.hobby-site.org/wiki/index.php/Main_Page

Setting up an iGate

Sam Buchanan's notes: http://www.vansairforce.com/community/showthread.php?t=30180

SAR

Links from Andy Volokitin

http://www.aprs-is.net/

http://www.basarc.org/articles/quickstartguidetoaprsforsearchandrescueapplication

http://info.aprs.net/index.php?title=SAR

http://wetnet.net/~we7u/search_and_rescue.html