Great Lakes Bass Fishing Forum
About Fishing Products including Make Your Own => Electronics Talk => Topic started by: Bassvergnugen on November 05, 2010, 10:44:28 AM
I'm going to make the leap shortly and get one of the newer fishfinder/GPS units. Still a little torn between which one and currently pouring over the posts to help me decide. The question I have that I haven't seen posted yet is about the sonar reading at speeds over 20 mph.
What should I expect to be able to see when moving at higher speeds? Will the units show contour, structure and fish while traveling at 15/20 mph? My current model (Navman 4150) doesn't really show a lot of anything other than depth. Just want to know what to expect.
Thanks,
Joe
My HB setup with shoot-thru transducer for on-plane only gives me depth but no detail. I assumed that I didn't get it set right in the epoxy but maybe that's the way it always is (?). I lose graph detail at 20-25mph. Others who know more about this will probably reply, but that's been my experience.
i still need to get a high speed transducer for my HB 798. Anytime i get over 15 mph i lose everything and the depth usually goes into the thousands. Luckily for me i only fish kent lake and have learned the hazards to avoid over the years, except for the boat ramp when they draw the lake down :o
McCarter himself :-\'
u go 15mph on kent!? u r breaking the law sir
I have the 898 SI unit on my dash, and the 788c on the bow. I have them interlinked together. I also have the high speed transducer epoxied into the bottom & connected to the 898 via a Y cable.
The high speed set up for the 898 works perfectly. It is everything I wanted when I decided to go this route. With the Y cable the electronics just do everything automatically. No switches to throw, no settings to make, .... nothing. Just enjoy it.
There is however, one improvement that I'd make if I were a Humminbird engineer.
The chart speed doesn't automatically adjust itself to which transducer I'm using. So if I set it at say 5 when I'm using the SI, the it will continue to be at 5 when it switches over to the other transducer at higher speeds. I'd like to be able to set it to run faster at high speeds.