KF161Tracker
From APRSWiki
The KF161-Tracker is a PIC16F628A or PIC16F648A based tracker module similar to TinyTrak, but designed to fit inside a Bosch KF161 transceiver.
It is available as a kit from:
KF161-Tracker uses AprsTracker open source firmware.
English documentation is available at:
Information in Dutch is available at: