Gary Kamerer can repair it.
http://cumulus-soaring.com/cai/GTK-C...pairs-2017.pdf

Best Regards,

Paul Remde
Cumulus Soaring, Inc.
_________________________

On Friday, May 31, 2019 at 3:50:08 PM UTC-5, BG wrote:
I witnessed something pretty strange this last weekend several Cambridge Model 20 GPS stopped working. I have used it for years connected to my SN10b with zero problems. This last weekend I saw on the SN10 display, no GPS signal in the last 10 seconds over and over. Indeed it wasn't updating. I had a spare and another glider had a Model 20 that also stopped working in their glider. Has there been some type of change to the GPS signals being sent from the satellites?

This was very strange?

Buzz Graves