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Maybe somebody with a 997 si could answer a question for me, I am going to buy one of these units sometime this month and I am trying to decide which one to buy the unit with the nvb or without, heres the question what would be the benefit to me who only fishes local rivers, would be the nvb package, I dont understand this part of it. Any an all replys to this would be appreciated...........thanks people..........an good fishin:):)
If you are only fishin rivers you should check the navionics maps for your area to see if they are on there
I bought the maps with mine -- [would,nt do it again]it prolly would help if you were selling your unit--I had a 2008 chip for another plotter,so I,m using it instead of the nvb,s---[they are 2006]
You will have to have one or the other in to use the unit---hope this helps
Maybe over simplified, NVB maps give you a very broad coverage with very generic maps. Like Frank said, ckeck see if the lakes or rivers you fish are covered by Navionics newest cards.
http://www.navionics.com/PlatinumCharts.asp
WarrenMN
I bought mine without nvb and use it without any chip. I just use the base map built in it. The map built in is not very accurate though. I have alot of waypoints set in 4 foot water and the map shows me out on the bank. Don't bother me cause I still know when I floating or walking.
I bought mine without nvb for several reasons-nvb is 2006 model maps, did not cover many of local Illinois waters I fish , and no way to up date nvb maps except for just going out & buying a new map chip & unit will use the newest map(it knows). 997 has 2 chip slots so U can have a map chip & a SD card for picts at same time, no problem. The 797 has only one slot so here NVB may prove to be more critical? Both Warren & Frank always offer good side find info. Also if U just want Cabela's always puts some of Nav's map series on sale at end of year Dec thru Feb.
Thanks fellas, after the feed back think I will just go with the chips sounds like a better idea.