Thanks for the welcome

Yes, I have read that too and that is exactly what I said to the Lowrance rep and he said it was wrong, go figure. I think my next step is to call Lowrance and ask them to send me a new antenna and expansion cable. This just should not be happening considering how much I’ve spent on the units.

Well, I am trying to do the same thing. Running 2 units (X-20 and LMS-332) off of one antenna. You need a NMEA 2000 expansion cable, which I have but there are problems. I have both units powered and both network lines powered. There are times when I can get both units to receive a signal and times when I can get no signal at all. I have talked to several people at Lowrance and I get several answers. This tech is so new, it is not understood very well. Last night I had my main unit receiving a signal and when I turned on my second unit I get the famous “GPS module not responding”. From there on I couldnt get either one to work. Something must be wrong and I need help. Very Very frustrating.