Bass Fishing Forum - Westernbass.com

Tested my current unit on multiple LMS 520c head units, both networked and individually. Problem of "no response" follows the antenna. Lowrance tech advised that I had, indeed, chosen the correct steps to identify the problem and that those antenna units failed often after 5 - 6 years of use. I have obtained a used unit and a "new" one and now need to test all three. Any ideas??
Thanks for your time, Richard - Sonora

Start with this:

http://support.lowrance.com/system/self ... LE_ID=2549

Why not just plug the new LGC into the current setup to see if it works?