
Originally Posted by
OzarkAngler
So I tried following this thread and made it to about page 17 before I fell asleep! LOL!
I'm a newb here but I have this graph and I too have had mix luck/experience with it but recently, I played with the contrast (this unit's version of sensitivity) and I think it's set around upper 50's. I've had some good luck with structure photos. I'll upload some here later.
Does anyone have a recommendation for a screen protector for this unit?
Also, do you have to have a Navionics SD card in order for the Lowrance unit to recognize the card? I have a standard 8gig card and I downloaded a high definition map of my home lake onto the card. I inserted the card and selected "Navionics" and the contours are still at 10ft range instead of 3ft range (I think that's the increased contour range anyway)
I could swear I found a place online that sells blank "Navionics" SD cards so you can download some free maps for select lakes. I don't see the point in buying a $150 card for a few lake. I don't need the entire central part of the US or all Southern states. A few lakes and I'm good.
Thanks!