version of our APRS TNC Digi Tracker.
It now has a USB port so that it can work with modern laptops,
notebooks and PCs.
It can be powered by either the 12V input on the 9 way D type radio
port or by the 5V feed through the USB port. This makes it very easy
to use with a notebook and handheld. The Digi Tracker is powered
through the USB cable and the Tx, Rx audio and PTT lines are connected
to the handheld radio.
It comes with a built in Sirf III GPS receiver with a SMA connector
for an external GPS antenna.
I've been using the prototype in my car over the last six months as a
tracker. It's fun to have the option to plug a USB cable between the
Digi Tracker and notebook for lunchtime portable APRS operation.
I've updated the web page with more details and an Operating Manual of
the USB version:
I've also made a new web page for the APRS Messenger Lite freeware
program that can program the new version using any PC Comm port up to
Comm 255 and also run as a receive only igate as well. The new web
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