APRS - LX3PR

Yaesu FT-1500M, Diamond X-50N, TinyTrak4 with display
The TinyTrak4 is configured as a stand-alone wide1 fill-in digi. Configuration can be changed by an attached PS2 keyboard. The RS-232 port can be used for connecting a GPS or weather station, a computer for programming and back-up (currently done with an old HP 200LX DOS palmtop). The port can also be configured to act as a KISS TNC interface. Another interesting feature is the APRS message terminal.

One is not enough, you need at least three!

BYONICS Micro-Trak RTG, a 10 Watt transmitter with APRS encoder (Tiny-Trak 3 chip). Serial GPS mouse, magnetic antenna and cables are included in the package. Available at byonics.com

BYONICS Micro-Trak AIO, a 10 Watt (when powered with 13.8 VDC, 3 Watt with 8 NiMH) all-in-one portable tracker, with built-in GPS, APRS encoder (a Tiny-Trak 3 chip), transmitter and power supply. Just switch it on and your position is on air (but don't forget the non pictured antenna ...). Available at byonics.com

TinyTrak 3, no longer used for tracking. The controller chip has been changed to a "tinypack" chip. Currently I am experimenting to send APRS packets via an HP48 calculator. It is planned to build a semi-automatic weather-station, by entering weather data into the calculator, who then transmits them via the TinyPack connected to a 2m-radio.
The kit is very easy to build and well documented. Parts available at byonics.com

Self built Tracker with Byonics Micro-Trak 300 and Byonics GPS module, powered by a 9V block battery. Autonomy is +- 10 hours at 200 mW output power. Parts available at byonics.com