Review on Enhanced Garmin GPS Receiver 19x HVS for Next Generation Navigation by Ken Booker

I use it to research snow in Antarctica and Greenland. It outputs GPGGA and GPRMC strings at 10 Hz and 38400 baud. It is currently compatible with GSSI SIR-30 and SIR-4000, not tested with SIR-3000. I have now bought five units and have never had a problem with any of them. She. Setup is incredibly easy as there is none. Turn on the power and the device will output data right out of the box. (Garmin has a way to interact with the device, but I didn't think about that). Bought these to replace some Novatel units that were 4 times the price and totally unreliable. They have a good range of mounting options - I used the pole mount option to get the antenna higher off the ground.