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Forums > Sailing General

Best gps depth sounder for a trailer sailer

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Created by w8ingforwind > 9 months ago, 19 Nov 2017
w8ingforwind
QLD, 259 posts
19 Nov 2017 3:07PM
Thumbs Up

at the moment both depth sounder and speedometer don't work


I need to replace them I want something I can load charts on, remove when not in use and something that will tell me to pull the keel up when I'm about to hit the bottom. What's not going to brake the bank!!! What have you found works well. I'm not interested in looking at fish just knowing we're my keel is.



Byrdsworth
QLD, 19 posts
19 Nov 2017 7:33PM
Thumbs Up

Hi ...
I have a careel 18

I use my phone for navigation via navionics app
also can read depth with this wireless sounder
https://shop.vexilar.com/en/sonar-phone-/sonarphone-whs-transducer-phone-not-included--sp200
the sounder is compatible with navionics and shows a depth reading on your map screen
the transducer can shoot through a fibreglass hull too

works for me

cheers
byrds

Byrdsworth
QLD, 19 posts
19 Nov 2017 7:41PM
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can provide photos of my installation if you want

cheers
byrds

w8ingforwind
QLD, 259 posts
19 Nov 2017 8:48PM
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Select to expand quote
Byrdsworth said..
can provide photos of my installation if you want

cheers
byrds


Please do

I don't think it will work through the hull in my boat though I did some repair work to the hull today and worked out that the hull is a foam sandwich thus the skin fitting with the paddle wheel and transponder . So I will have to find a similar transponder

LALancer
WA, 40 posts
19 Nov 2017 8:00PM
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I use a garmin hand held GPS for speed and distance and distance to way points.

Chris 249
NSW, 3420 posts
20 Nov 2017 8:23AM
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I just used a little Lowrance GPS/fishfinder for $250-$449. I don't fish but I do like seeing what's on the bottom, so I don't anchor over seagrass. You can also take the unit off the yacht and put it in a dinghy for exploration or leading the big boat into anchorages. The transducer is transom mounted, which may be a hassle.

w8ingforwind
QLD, 259 posts
20 Nov 2017 8:08AM
Thumbs Up

Select to expand quote
Chris 249 said..
I just used a little Lowrance GPS/fishfinder for $250-$449. I don't fish but I do like seeing what's on the bottom, so I don't anchor over seagrass. You can also take the unit off the yacht and put it in a dinghy for exploration or leading the big boat into anchorages. The transducer is transom mounted, which may be a hassle.


Transom mount transducer is out of the question the transom is 100mm out of the wAter

cazou34
NSW, 146 posts
20 Nov 2017 10:18AM
Thumbs Up

I use a little Hummingbird depth sounder/chart plotter that I got for 30$ on Gumtree... I have mounted the transducer in the bilge in mineral oil bath and it seams to work well, still have to test the system in open water.

Byrdsworth
QLD, 19 posts
21 Nov 2017 4:18PM
Thumbs Up

Select to expand quote
w8ingforwind said..

Byrdsworth said..
can provide photos of my installation if you want

cheers
byrds



Please do

I don't think it will work through the hull in my boat though I did some repair work to the hull today and worked out that the hull is a foam sandwich thus the skin fitting with the paddle wheel and transponder . So I will have to find a similar transponder


You can mount the transducer on the transom too ...

My boat has a false floor / inner skin ... so had to cut through that to get to the hull
i cut a hole slightly bigger than the shape of the transducer and stuck it to the hull with clear silicone
works really well ...



I mounted the box under my switch panel ... but it could go anywhere really



some screen shots below of it working with it's own app and navionics











cheers
Byrds

w8ingforwind
QLD, 259 posts
23 Nov 2017 8:51PM
Thumbs Up

Nice

I bought a wi-fish and found a place in the boat where the boat has been extended where the glass is sold I'm planning on cutting a Tupperware container up and glueing it to the hull filling it with water to test it?

G30ff0
NSW, 128 posts
22 Mar 2018 8:20PM
Thumbs Up

Select to expand quote
w8ingforwind said..
Nice

I bought a wi-fish and found a place in the boat where the boat has been extended where the glass is sold I'm planning on cutting a Tupperware container up and glueing it to the hull filling it with water to test it?


Hi W8ingforwind, how did you go with the transducer trial?

Wander66
QLD, 294 posts
22 Mar 2018 8:32PM
Thumbs Up

Select to expand quote
w8ingforwind said..
Nice

I bought a wi-fish and found a place in the boat where the boat has been extended where the glass is sold I'm planning on cutting a Tupperware container up and glueing it to the hull filling it with water to test it?


All you need to test the transducer is to put it in a plastic bag full of water sealed around the cable, hold the transducer flat against the hull and check the screen for noise. Doing ir this way you can move it around to find the best spot.
For permanent installation Garmin recommend using engine coolant .



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"Best gps depth sounder for a trailer sailer" started by w8ingforwind