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.

DownloadTinyTrak4 Quick Start Guide - A guide to help get started with the TinyTrak4. Version 0.7
DownloadTinyTrak4 Built Hardware Manual - User Manual for the TinyTrak4 hardware. Version 8
DownloadTinyTrak4 Kit Hardware Manual - Assembly instructions for the TinyTrak4 kit. Version 0.7
DownloadTinyTrak4 Alpha Firmware Manual - Documentation for the TinyTrak4 Alpha firmware. Version 0.72
DownloadTinyTrak4 Firmware Manual - Instructions for updating the TinyTrak4 Firmware.
DownloadTinyTrak4 Built Hardware Manual - User Manual for the TinyTrak4 hardware. Version 7.2
DownloadTinyTrak4 Alpha Firmware - Lastest firmware for the TinyTrak4. Version 0.72
DownloadPrevious TinyTrak4 Alpha Firmware - Older firmware and config program for the TinyTrak4. Version 0.68

Sorry, Currently out of stock

TinyTrak4 are out of stock due to supply chain issues until January 2023. The TinyTrak3Plus is still available.

TinyTrak4 Display

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

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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.

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