Other Interest > DIY - Side Scan Sonar and towfish

Garmin transducer for SI

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peterv6i:
Here I have found thath garmin has launched SI and down imaging on their products...
I'am interested in this transdcuers (because are less expensive than humminbird's)...

https://buy.garmin.com/en-US/US/shop-by-accessories/transom%20mount%20transducers%20/all-in-one-hd-id-and-downvu-transducer-8-pin-/prod145793.html#gallery-dialog



GARMIN 010-12089-00 TRANSOM SIDEVU/DOWNVU TRANSDUCER

Get ultra-clear sonar pictures of objects, structure and fish that pass below and to the side of your boat with this 12-pin transducer.

This comes with a 20 ft transducer cable, built-in fast response temperature sensor and has a power rating of 500 W per element (1,500 W total); a depth of 750 ft (DownVü) and 500 ft left and right (SideVü); an operating frequency of 455/800 kHz; and a 0 to 70 transom angle. Pair it with your GCV™ 10 black box sonar.

Transducer comes with installation instructions. Follow the instructions carefully to avoid damaging your boat.

ITGEEK:
So, you want to use a Garmin transducer on your Humminbird?
I'd be careful and do a lot of research before buying.
I'd wait and see if someone successfully used one with good results.

peterv6i:

--- Quote from: ITGEEK on March 28, 2014, 09:35:17 AM ---So, you want to use a Garmin transducer on your Humminbird?
I'd be careful and do a lot of research before buying.
I'd wait and see if someone successfully used one with good results.

--- End quote ---

I can't find the connector schema but the side scan work's on the same freq as humminbird and lowrance..

ITGEEK:
Who knows.
It might work.
I think you are going to be breaking new ground, and
charting unknown waters.
Good luck if you try it.

Rickard:
Peter,
This would be a project that is similar to my "treason project" with the LSS-2. The LSS-2 does work, but nobody can tell if it's possible also with the Garmin transducers. The only rational reason (disregarding costs) for trying with these transducers is narrower horizontal beam with a longer transducer. My guess is.... yes, it works also with Garmin transducers, because the SI frequencies are the same and because transducers use to be rather simple devices with just a few piezo elements and some wires inside. The LSS-2 has 9 pins, but the Garmins have 12. This is a bit puzzling because it's difficult to see the reason for that number of pins. Perhaps some of them are not used? You will have to go through some trial-and-error testing risking your unit, but if you succeed you will feel quite satisfied... and have better horizontal resolution than before. Dont forget about the new HB transducers for the ONIX and ION models. They are not intended for the older units, however, I bet they can be adapted for your unit too.
 
Using SI transducers which are longer than the standard HDSI transducers does not enhance the display image to any significant extent while on water, but the difference is very clear when recordings are inspected with a computer.
 
If you use the slimmer Garmin transducer, you will need an extra 200 kHz downsensing transducer. This will add to costs, like the extra cables will. In the end I don't think this will be a cheaper solution.
 
Rickard

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