The Byonics TinyTrak4 is an APRS tracker controller, digipeater, and KISS TNC. When connected to a serial GPS and a radio, it can send and receive APRS position and telemetry packets, as well as act as a stand alone smart digipeater. A computer running APRS software can be connected to the second serial port to provide mapping of received traffic.
In addition to the TinyTrak4, users will also need a radio/power interface cable
and a computer interface cable
for configuration. The TinyTrak3Plus
is a simpler, transmit only version. Our MicroTrak products
are TinyTraks with built in transmitters.
TinyTrak4 Quick Start Guide
- A guide to help get started with the TinyTrak4. Version 0.7
TinyTrak4 Built Hardware Manual
- User Manual for the TinyTrak4 hardware. Version 7.2
TinyTrak4 Kit Hardware Manual
- Assembly instructions for the TinyTrak4 kit. Version 0.7
TinyTrak4 Alpha Firmware Manual
- Documentation for the TinyTrak4 Alpha firmware. Version 0.72
TinyTrak4 Firmware Manual
- Instructions for updating the TinyTrak4 Firmware.
TinyTrak4 Alpha Firmware
- Lastest firmware for the TinyTrak4. Version 0.72
A surface mount built and tested version of the TinyTrak4.
TinyTrak4 and GPS Combo
The built and tested TinyTrak4 and case, along with our GPS5 receiver
A through hole version of the TinyTrak4 in kit form for those that prefer to solder.
The TinyTrak4 supports connection to a 20x4 LCD display which can show received stations. When an optional PS/2 keyboard is also connected, users can send APRS text messages, and update TT4 settings. Download manual
and wiring guide
TT4 Display with Adapter Built
Assembled adapter and LCD display.
TT4 Display with Adapter Kit
Adapter in kit form and LCD display
The TT4BT is a bluetooth adapter for the TinyTrak4. It connects to the J2 serial port connector, provides a bluetooth interface to Port A, and allows the connection of a GPS to Port B. Download manual
. Includes free USB bluetooth dongle while they last.
Additional Byonics APRS Products