marcum/humminbird interference

[dairyman]

I was out tonite and my "bird" was interfering with the marcum. I set the IR on the marcum but was still seeing some interfderence on the bird ----how do I compensate for it on the "Bird"???----thanks Oh,its a 788ci by the way

[herefish101]

You can press the IR button on the Marcum over and over again and it'll keep changing the level of interferiance rejection. A Marcum can tune out any other unit, I have an LX5 and have fished along side every unit out there and by tuning my Marcum and not the other units I can always find a happy zone with no interferiance to very little interferiance.

[Brad B]

check your manual for your 788. if it is like the 597 you should be able to switch the frequency to 455Kh from 200Kh. this would cut out all interference because both units would be on there own frequency.

[dairyman]

thanks guys----I knew if I posted here I'd have the answer I needed. Always a lot of good info here

[kerryd15]

I think the 788 and 798 are similar. go into the humminbird sonar menu, you probably have it on 200/83. If you put it on 83 only there should not be any interference. I think that is the 45 degree cone, so you may have problems seeing your jig in deep water. Works well when shallow.