Humminbird 580 Combo

SoFloStone

Seaman
Joined
Sep 12, 2008
Messages
65
I'm in the market for a fishfinder and GPS unit, and was leaning toward the Humminbird Combination units.

The manufacturer specifications say that this unit is upgradable Navionics seamless cartography, or HotMaps and Marine cartography for blue water use.

My questions is has anyone upgraded their unit to any of the above saftware packages, is it difficult and is any special equipment required?

I need a map with the North Island of New Zealand on it, and will have to be able to upgrade within the next 18 months.

Thanks,

Rick
 
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