GPS Data for Icom IC-9700

The Icom IC-9700 has a GPS data input available but no oficial accessory from Icom. It’s a 2.5mm TRS connection that allows users to connect a GPS unit with an RS232 output to the IC-9700 and use that data for DSTAR transmission. There are several GPS units on the market that can provide the data but they are often expensive standalone units or cheaper, older generation units with lower sensitivity and performance when it comes to tracking GPS satellites. Continue reading “GPS Data for Icom IC-9700”

External GPS for TM-D710

I’ve been running my TM-D710 in the car for a while using a Garmin GPSMap 60CSX which works well but does add clutter to the dashboard and is just another device to remove when leaving the car in a public place. I could upgrade to the newer TM-D710G but I can’t justify the £550 price tag just to get a built in gps so I have decided to add a gps unit to my existing unit.
Continue reading “External GPS for TM-D710”

GPS antenna fix

I was given a broken active GPS antenna by a pilot friend. It’s made by Gilsson who are known for their great GPS antennas so I thought I would have a go at getting it working.

On first inspection, it seems that someone has removed the original thin coax and replaced it with some thicker coax. There has been a hole drilled in the bottom of the case and the new coax has been inserted through.
Continue reading “GPS antenna fix”