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Member
Posts: 35
| I have a couple of networked Lowrance units in my boat and see that there are speed and temp sensors that can be added to the network.
My question is: Why add them? The GPS gives SOG, and Temp comes from the Transducer. I was under the impression that the SOG (Speed Over Ground) from the GPS was more accurate than a paddlewheel.
Thanks,
Steve |
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Member
Posts: 3899
| I have always had the paddlewheel. I use it in the river when I am trolling to guage the current. Whill I usually let the action of the bait, and the fish, tell me how fast to go upstream or down stream, I do use the paddle wheel in conjunction with my GPS SOG to better determine how fast the currecnt is. Just something I do that helps me.
As for the temp. Some put a temp sensor in the livewell. Or just hang it to get air temp. If you shoot through the hull, you would want one, too. |
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Member
Posts: 35
| Never thought of it like that, as far as the river thing goes. Great point.
Still wondering though how paddlewheel accuracy compares to SOG from GPS. Anyone have experience in this regard?
Steve |
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| The paddle wheel speed sensor is not very accurate, however on my Lowrance unit you can calibrate the speed readings on your locator. Mine read 27% high. After calibrating for top speed, the low speed readings were way off. with a gps unit there is no reason to spend the extra $ to get the speed sensor. |
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Member
Posts: 3899
| As said, you can calibrate them, but if you get them close on the bottom end, they are way off on the top end. And vice versa. I only looked at mine when I was trolling, and it is plenty accurate for that. I think I will always have one on my boat. |
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