Understanding GPS Mapping and How it Works

DougV · 01-23-11, 01:08 PM

Here's a short video clip on How to Understand how GPS Mapping Data is Displayed over a Map Data on your fish finder. Hope it helps make's it easier to understand how GPS Data is overlayed over the Mapping Data:
http://www.youtube.com/watch?v=dfIf9LF2-yE

CiK · 01-23-11, 01:33 PM

Great video Doug!

I have a question. I am in the market for a boat, and want HB units on it. I will either be going with the 1100 or 900 series units. Which map chip should I buy for my area? I understand certain years have more information than other. I am in the Cincinnati Ohio area and won't fish too far beyond the Ohio, Indiana and Kentucky waters. Is there a better year for the lakes in my area?

Tony

nofearengineer · 01-23-11, 02:50 PM

CIK, I don't know what Doug will advise, but I like my 2010 Navionics Hotmaps Platinum East. I'm not sure if they're coming out with a 2011 version. I also got a free HD lake with it. I picked Dale Hollow...the level of detail is ridiculous.

CiK · 01-23-11, 03:08 PM

NFE, how is the detail for the other lakes? Especially ones like Monroe, Patoka and the dreaded Ohio River.

Tony

nofearengineer · 01-23-11, 06:04 PM

Patoka is really good. I haven't taken my boat to Monroe (fished it out of Woody's boat aka "Screamin Demon").

One thing I will tell you, is while I like the Navionics maps....DO NOT spend a dime on their "Hotmaps Explorer" software! I had a big rant thread on that software last year, as they left out all of the maps they sell a paper version of. That includes Patoka, Monroe, Brookville......yeah, all of the big lakes.

If you get a 99X or 119X HB SI unit, you're going to be finding more detail with that thing than any line on a chart can tell you. Trust me.

DougV · 01-23-11, 10:27 PM

I would review the Navionics Website Lake List to see which ones are in HD these will have the 1 Foot Contours: http://www.navionics.com/LakeCharts_HMPremium.asp

Navionics has a new program that will allow you to update your maps during the year for no additional charge since they are now doing a continuous updating program as they receive data from the field. Not sure how it's all going to work but was recently announced from Navionics.

Looks like the East Region will be the best coverage for you.

everettvet · 01-23-11, 10:34 PM

Are those updates only for newly purchased chips? I have one that i bought last year and one about 4 years ago.

DougV · 01-25-11, 12:33 AM

My understanding this is for the 2011 Mapping Cards...look in Bass Pro or Cabelas Catalog I think that is where I seen the info. Nothing updated on the site yet.

Embrey · 01-25-11, 10:07 AM

how good are the maps compared to whats preloaded in the 798?

01-23-11, 01:08 PM	#1
DougV BassFishin.Com Active Member Join Date: Aug 2010 Location: Truman Lake, MO Posts: 170	Understanding GPS Mapping and How it Works Here's a short video clip on How to Understand how GPS Mapping Data is Displayed over a Map Data on your fish finder. Hope it helps make's it easier to understand how GPS Data is overlayed over the Mapping Data: http://www.youtube.com/watch?v=dfIf9LF2-yE

01-23-11, 02:50 PM	#3
nofearengineer BassFishin.Com Premier Elite Join Date: Mar 2009 Location: Southwest IN Posts: 5,630	CIK, I don't know what Doug will advise, but I like my 2010 Navionics Hotmaps Platinum East. I'm not sure if they're coming out with a 2011 version. I also got a free HD lake with it. I picked Dale Hollow...the level of detail is ridiculous. __________________ Many men go fishing all of their lives without knowing it is not fish they are after.

01-23-11, 06:04 PM	#5
nofearengineer BassFishin.Com Premier Elite Join Date: Mar 2009 Location: Southwest IN Posts: 5,630	Patoka is really good. I haven't taken my boat to Monroe (fished it out of Woody's boat aka "Screamin Demon"). One thing I will tell you, is while I like the Navionics maps....DO NOT spend a dime on their "Hotmaps Explorer" software! I had a big rant thread on that software last year, as they left out all of the maps they sell a paper version of. That includes Patoka, Monroe, Brookville......yeah, all of the big lakes. If you get a 99X or 119X HB SI unit, you're going to be finding more detail with that thing than any line on a chart can tell you. Trust me. __________________ Many men go fishing all of their lives without knowing it is not fish they are after.

01-23-11, 01:33 PM	#2
CiK BassFishin.Com Active Member Join Date: Dec 2009 Location: Cincinnati, Ohio Posts: 221	Great video Doug! I have a question. I am in the market for a boat, and want HB units on it. I will either be going with the 1100 or 900 series units. Which map chip should I buy for my area? I understand certain years have more information than other. I am in the Cincinnati Ohio area and won't fish too far beyond the Ohio, Indiana and Kentucky waters. Is there a better year for the lakes in my area? Tony

01-23-11, 03:08 PM	#4
CiK BassFishin.Com Active Member Join Date: Dec 2009 Location: Cincinnati, Ohio Posts: 221	NFE, how is the detail for the other lakes? Especially ones like Monroe, Patoka and the dreaded Ohio River. Tony

01-23-11, 10:27 PM	#6
DougV BassFishin.Com Active Member Join Date: Aug 2010 Location: Truman Lake, MO Posts: 170	I would review the Navionics Website Lake List to see which ones are in HD these will have the 1 Foot Contours: http://www.navionics.com/LakeCharts_HMPremium.asp Navionics has a new program that will allow you to update your maps during the year for no additional charge since they are now doing a continuous updating program as they receive data from the field. Not sure how it's all going to work but was recently announced from Navionics. Looks like the East Region will be the best coverage for you.

01-23-11, 10:34 PM	#7
everettvet BassFishin.Com Veteran Member Join Date: Jan 2006 Location: Paducah, KY Posts: 730	Are those updates only for newly purchased chips? I have one that i bought last year and one about 4 years ago.

01-25-11, 12:33 AM	#8
DougV BassFishin.Com Active Member Join Date: Aug 2010 Location: Truman Lake, MO Posts: 170	My understanding this is for the 2011 Mapping Cards...look in Bass Pro or Cabelas Catalog I think that is where I seen the info. Nothing updated on the site yet.

01-25-11, 10:07 AM	#9
Embrey BassFishin.Com Veteran Member Join Date: Jan 2010 Posts: 505	how good are the maps compared to whats preloaded in the 798?

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