[CA] [CA11] E80 issue

[Seacruz]

I have a strange issue with my E80’s. Both the master and slave unit work great until I get about 30 miles offshore, then the slave which is set as my fish finder shuts off and reboots, then says no data, and continues to reboot itself, after a while the master starts to reboot it’s self as well, but does give you your position.I did the software upgrade to the 5.69 revision, but still does it. Once I come back and get within in 10 miles of shore it goes back to working as normal. This has happened serveral times. Can anyone give me some direction please.