Chip for Furuno 1834C


1st Mate
Jan 6, 2012
Green Harbor
Boat Make
28' Seaworthy BHM

Looking to purchase a chip for my new (to me) Furuno 1834C. I fish from the Cape and Islands north to Boston Harbor and out to Stellwagen Bank. Owners manual indicates the units can use either C Map NT+ or Navionics Gold. Not sure if you would recommend one over the other.



Wharf Rat

Marine Electronics 'Professional'
Forum Sponsor
Apr 24, 2012
New Rochelle, NY
Boat Make
Hey Anthony,

Before you make any rash decisions, what you have is a unit that was programmed for either Navionics {Not Exactly Supported Anymore] or for the C-Map MAX or NT+. If you look at the door of the chart reader slot on the lower right hand corner, it will say Navionics or C-Map. ID that, and let me know. The problem is that Furuno made both options available, but as the Navionics Gold coverage increased in size, it caused a few issues, primarily slow chart redraw. Both C-Map and Navionics offer almost identical chart data, it's all derived from the NOAA Vector charts. However, if it is a Navionics, which like I mentioned is no longer officially supported, you can easily update the firmware of the system to become a C-Map reading unit. Let me know what you find. Our offices are still down without power or phones, but if you just reply to this thread or send me a PM I will get an email on my cell phone. Things are a little crazy down here, I just got power on about 20 minutes ago and after checking some porn I came immediately here. Home sweet home.

Also, that unit is most certainly in need of a software update as well, which has increased the chart redraw speed among a ton of other things. Also, once powered up, be sure to check this out to get the fastest redraw speed on the chart. Chart Optimization Settings C-Map

If you have any questions, like I said, just drop them here in the forum thread, or you can always throw me a PM with a number I can reach you at via crappy cell service. It's a mess down here. Congrats on the unit, it's a beast, bulletproof, and the most popular Furuno system ever sold. Wait until you see the radar in action.

AKA Wharfie

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