Topic: Helix 12 si di mega and a 998 si di HD

[hgv]

So how do I hook the two together? Do I use separate transducers or will the 998 work through the new mega transducer?

Thanks

[rnvinc]

You would need the AS EC QDE Ethernet adapter cable for the HELIX  ... (998 has a direct Ethernet connection)  ...
https://www.humminbird.com/productDetail-Accessory.aspx?Pageid=728&id=868

And you would need an Ethernet cable long enough to reach  ...
https://www.humminbird.com/productCategory.aspx?id=3774&facets=7319,

You will be able to share waypoints, accessories, and "like" Sonar technologies   ...

CHIRP will have to be shut off to share 2d or SI with the 998  ...

MEGA DI and SI will not share to 998 - only 455/800kHz fixed frequency SI  ...

Here's the Sonar sharing matrix  ...
https://www.humminbird.com/WorkArea/DownloadAsset.aspx?id=10463

Each unit can have its own xducer connected (with the above sharing limitations)  ...

Or just the MEGA xducer can be connected (with the above sharing limitations)  ...

Rickie