Thanks guys, esp DionJL
Well, I think I'll likely buy the Helix 5, sonar/GPS model, with the Nav+ chip. Cabela's has it on for $509.99, so if I find a sweet deal at the boat show coming up I'll likely buy one. Most reviews of this unit are very good, but most say the GPS is pretty useless without the Nav chip. The Elite 5 CHIRP is also very highly reviewed, however with the nav chip I'll be a fair bit over budget, so I think I'll give it a miss.
DionJL, so with the Helix 5 and the Nav chip, does it show you depth charts? Apologies this is probably not the correct navigational jargon
You know...where you can see the depth contours, "deep spots" and so on? Will the GPS show this in rivers, in particular the fraser? Or is it more for lake fishing?
Also, I'm curious if you get an accurate reading of bottom with this unit at cruising speed? My main reason for replacing the existing FF, and I know this is kind of lame, but it always loses bottom as soon as you get moving. Can't even get a lock on bottom putting at very slow speed
I've dinked with transducer depth, angle, and so on with little effect. But, what's funny, is if I take the boat in a clear LAKE, say Chilliwack, it reads bottom FINE! Like almost up to WOT. Yeah. So, I'm hazarding a guess that this older unit, with wussy power compared to new ones I'm looking at, struggles to zap through the dirty Fraser.
However, it will read just fine barely moving or anchored, so I could be out to lunch on this theory. I'll just have to take a chance on a new unit and hope that get better bottom reading out of it.