Under Construction - literally, since I'm still working on modifying the Tracker, but this website is also just an outline with the pictures I've taken so far.
The tracker is built from a DeLorme TripMate GPS receiver, which was originally built to be connected to a PC's serial port and used with mapping software. A couple of years ago DeLorme introduced the newer EarthMate receiver and sold off their old stock reconditioned TripMates through their website (unfortunately, they're all gone now). The TripMate is in a relatively small plastic enclosure, with a seam about halfway that separates it into a top half housing the GPS receiver and a bottom half with a 4xAA battery holder.
Once the battery holder is removed, the back shell is available to house the TinyTrak. I've seen a number of conversions using varying styles, mostly with the TinyTrak status LEDs remoted using wires. I decided I didn't like any of those, and worked out a way to get both the DB-9 serial connector and the LEDs mounted on the board but accessible through the sides of the TripMate housing. The pictures show several views of the finished unit. A more detailed writeup for the conversion is pending.
To see the unit 'in action' you can look for me on FindU: http://www.findu.com/cgi-bin/find.cgi?call=n2rkl-1
Caveat - although I do like the compact form and convenience of the tracker, I've had significant RFI problems that appear to originate from the TinyTrak. My tracker radio, a Yaesu FT-416 HT, picks up what appears to be digital noise of sufficient strength to break squelch and convince the TinyTrak that the channel is busy, and prevent it from sending any positions. I've tried various things to quiet the unit, and none have worked to date. My next plan is to remove the TinyTrak from the TripMate and put it in a separate, shielded enclosure to see if that cures the problem. If so I'll likely make a flat panel to cover the back of the TripMate, and live with having two boxes :(
73, Bill N2RKL
N 2 R K L at Q-S-L dot N-E-T (you get the idea ;)