Watch a couple videos of people calibrating their Ultrex one person said the smaller you make the 2 circles with the boat the more accurate it will be. Any truth to this? Thank you.
Watch a couple videos of people calibrating their Ultrex one person said the smaller you make the 2 circles with the boat the more accurate it will be. Any truth to this? Thank you.
No truth whatsoever. A circle is still a circle regardless of size. The reason is to determine the difference between the alignment of the sensor with keel and compass (sensor) to know the offset.
Wes
Helix 10 MSI+,MDI+,Ultrex IPilot
2023 Phoenix 818
Never assume there's a tomorrow
Thanks for your input, didn't make sense to me either.
I calibrated mine this weekend. I just set it at 45 degrees or so. Worked out fine. I don't know how I lived without that thing.
Are you using the Troller to make the circles or Big Motor.? Thanks
I used the trolling motor. My reasoning was that the sensor communicates with the trolling motor. Wanted to make sure that the trolling motor was facing the direction of travel as I made my circles. May not make a difference though.
2024 Phoenix 818, Mercury 175 (3B414035) Trick Steps, 3 Garmin 106 SV,s, LVS 34. BoatEFX dual bow mount. Ionic 12V 125AH, 2 12V 100 ah LiTime’s for the TM. Minn Kota 345 PCL charger,
Thanks
That is an interesting take... to do the circles with the trolling motor instead of the big motor... I wonder what Minn Kota's take on this is. Maybe I need to give them a call. Good points in this thread.
Sam Dunaway
2005 Triton TR-21X
Powered by Suzuki 250SS
I used the trolling motor to do the circles. Just seemed like the right way to do it to me I guess. I never even considered using the big motor.
Joe
2000 Viper Coral 202
2001 Mercury 200 EFI
I have seen videos of it done both ways. I chose to let the trolling motor make the circles but I don't know that it would make a difference. My understanding is that is just calibrating the compass which generally just has to find north in order to identify bearing. The offset calibration is where I think it would be critical to get the trolling motor pointing dead ahead and then set so that it can see the difference between where the compass is pointing and where the head is pointing to function properly. Just my opinion based from reading the manual.
1998 Tr-21, 2001 Yamaha 225 OX66
I did the circles with the trolling motor as well and it's working great for me....
1994 Ranger 492VS
2004 Optimax 225 - 0T920364
6" Hydro Dynamics Manual Jack Plate
24p Fury 4
24v 47" Lowrance Ghost / Lowrance HDS
Just out of curiosity, for the guys that calibrated their heading sensor by way of doing the two circles with the trolling motor... have any of you guys used the "jog" feature while in spot lock mode?
Sam Dunaway
2005 Triton TR-21X
Powered by Suzuki 250SS
I have and it worked good. I threw a marker out in front of the boat and jogged the boat in all directions and it worked good.
Last edited by Lowerider58; 03-28-2019 at 07:53 AM.
Cool I cant wait.
So... it sounds to me as though you can do the two circles for the calibration with either the trolling motor or the big motor. Nice!
Sam Dunaway
2005 Triton TR-21X
Powered by Suzuki 250SS
1998 Tr-21, 2001 Yamaha 225 OX66
My spot lock is good, but sometimes it "hunts" quite a bit. I have adjusted the boat scale a few times but it doesn't seem to help. I think I am gonna try to do another calibration on the heading sensor, only this time I will use the trolling motor to do the circles. I don't know if that will help or not.
Sam Dunaway
2005 Triton TR-21X
Powered by Suzuki 250SS
I haven't used mine a ton yet, but the only time I notice it hunting is in real light wind. I think it needs the wind trying to move it in a definite direction to work well. Having said that, I have found adjusting the boat scale to compensate for wind speed seems to help it hold a little better. Still playing with it.
1998 Tr-21, 2001 Yamaha 225 OX66
Did mine with the boat on the trailer behind the truck in the parking lot of the mechanics shop. Works fine.