Ethernetting 2 HB units

The Helix 7 G2N is going to be a brighter and more clear screen than the 899.

I have a helix 7 and Helix 9 what cables or parts do I need to do this?

Assuming the Helix 7 is a G2n version ..... You will need 2 Ethernet adapter cables and 1 Ethernet cable of the appropriate length.

http://www.humminbird.com/Products/AS-EC-QDE/

http://www.humminbird.com/Freshwater...facets=7319%2C

Humminbird also an Ethernet manual .... probably just do a google search for it.

Thanks Bob........