I have a 998 on the bow and an 1197 on the console. All software is at current levels. Sometimes one or both of the units will go crazy and start showing depth readings all over the place. I realize that when a puck is in very skinny water it might lose it's mind but I'm talking about fishing in 10 ft of water and all of a sudden the depth reading will go to 200 ft, 300 ft, 6 ft, 20 ft, 250 ft, etc.... The reading changes about every second or so.
I had read that current software levels fixed this problem but I'm still experiencing it with the latest software level. I suspect I have an interlink problem, which I've posted in another post. Could a bad interlink cause this issue?
Thanks very much for your help.