Proa, I don't want to get into a pissing contest about this. I experimented, and it didn't work for me.
As for the plastic bag of water, it is an accepted way of testing a location for an in-hull transducer. IIRC, Garmin suggests it.
Two things:
I was a little harsh to characterize Garmin's lack of choice in transducers as "stupid." They obviously sell a lot of stuff, and make some nice things.
A couple of other anarchists have used a transom-mount as an in-hull, and one used toilet seal wax. Experimenting with that method...
I may give this a shot with the current transom-mount transducer.
If I decide to try the Garmin in-hull transducer, I'll probably try it out with a plastic bag of water between it and the hull. If that works under power, I should be good to go. If not, screw it, I'll stick with what I have...
@S35 You mean:
If you can, create a ring with that wax that's an appropriate diameter for the transducer. Make sure that the walls of the ring are about 1-1.5 inches high. Once in place, fill it with water and then put the transducer in the center?
No, I have not, but I may do it before...
I ran this whole thing by my ePropulsion dealer, who is an electrical engineer, and haven't heard back yet. I also want to talk to Garmin. I'm thinking I might try the real Garmin in-hull transducer, but if it doesn't work, I would want to return it.
@J_Grove , @mckenzie.keith , @Panoramix , I got some more info today:
1) I put ferrite beads on the power supply cables (Battery -> Pod Controller) - no luck. I added one to the transducer data cable, next to the device, and another on the same cable where it passes near the cables which supply...
@J_Grove Thanks for relating your experience. A few thoughts:
I have suspected EMI because the unit works fine while I'm sailing; within seconds of powering the motor, it loses the signal.
I think my boat has a solid fiberglass hull, based on this from a survey: "The hull showed solid...
Regarding things going wrong in Canuckistan, Mrs. Bull went to Costco the other with Canadian Bacon on her list. It was out of stock! :eek: What is going on up there?
@Panoramix & @mckenzie.keith You are many levels above me. I will pass this on to the electrician who is helping me. BTW, he installed a ground wire from the pod drive to the keel.
When I tried the alternate power source (LI portable power station, which is in the lower port-side cabinet, just aft of the bulkhead under the mast step), I was sitting on the V-berth with the EchoMap, and all the cables around me.
The only time it did not have the problem, was when we held...
Yes, it does. TONIC is 27 feet LOA, and beam is 7.2 feet. Below is a diagram showing where some of the components are. There's a lot of wiring & cabling around the battery, pod drive, pod controller, and the On/Off switch.
The transducer data cable runs by the On/Off switch (which is mounted on...