Transducer

 Gday all chasing info from the the sounder transducer gurus i currently have a furuno 587 with TM260 transducer and want to change to a thru hull transducer . I currently run up to 15kn to 18kn and lose readings so am hoping to get better performance at speed . Most of my fishing is between 20m to 100m but occasionally go exmouth deep dropping to 300m to 350m any info on transducers that would suit be much appreciated. Boat its going on is a 6.8m bayshore aluminium.

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scano's picture

Posts: 941

Date Joined: 31/05/07

Not sure

Sun, 2017-08-13 10:08

 if you will maintain such good read rates at speed. As a general rule of thumb, the through hull tansducers lose bottom earlier than an external, in water transducer. You could go the external 1kw job but they are a big unit, and they are normally best with a drop down bracket assembly. Otherwise they can tend to throw big amounts of spray whilst travelling and are more susceptible to damage whilst travelling, due to their overall size. 

 

If it was me, I would go a through hull 1kw transducer, just make sure you don't install it anywhere behind there is a rib, chine, anything that will disrupt flat water passing over the face of the transducer. 

 

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Jackalchub's picture

Posts: 341

Date Joined: 10/03/12

 I'm no guru mate, but I've

Sun, 2017-08-13 08:14

 I'm no guru mate, but I've got a 1kw B175M (medium chirp) hooked to an S2009. It works at any speed unless i'm trimmed right up.. have pushed it to 380m and it was still picking up clear bottom at 10 knots +. Once you go thru hull, I don't think you will go back. Reduced noise and clean water 

Carry's picture

Posts: 625

Date Joined: 22/04/09

Thru hull

Sun, 2017-08-13 08:24

 By thru hull i mean drilling a hole in the hull and having it installed through the bottom of the  hull . Jackal have you got any photos of where yours is installed and how does it read in 20m to 100m at speed 

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Jackalchub's picture

Posts: 341

Date Joined: 10/03/12

 yeH mate, 110mm cut out in

Sun, 2017-08-13 13:07

 yeH mate, 110mm cut out in the bottom of my hull! wet face. pm your number and i can send you photos 

gruntre69's picture

Posts: 300

Date Joined: 15/10/16

 If you can and have the

Sun, 2017-08-13 09:11

 If you can and have the coin, I'd put a pocket mount in. You need a flat keel to do it. these end up wet faced and perfectly flush if installed properly. Something like PM265LH Chirp which are higher Qfactor and will work with your unit as far as I know. Then you have selectable frequencies in two ranges and if you want to change to chirp later you can do so.

I think these are possibly the best transducer mount possible, but they are the most work to install and will not work with all hulls. I like the idea of two frequency ranges in the one transducer which is like what to have now in non-chirp.

The other option is B164 or multiple B175 chirps thru hull types.

It depend on whether you want the advantages of chirp transducers and the possiblity to change to a chirp unit later. 

Here is where you need to start looking:

www.airmar.com/productinfo.html

gruntre69's picture

Posts: 300

Date Joined: 15/10/16

 Sorry I missed the aluminium

Sun, 2017-08-13 09:16

 Sorry I missed the aluminium boat bit of your Post. You will probably need the SS versions and the Pocket mount would be harder but not impossible for a good fabricator.

Carry's picture

Posts: 625

Date Joined: 22/04/09

Im a boily by trade

Sun, 2017-08-13 09:17

 Got all the ali gear to weld 

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kirky79's picture

Posts: 1061

Date Joined: 13/01/12

I've got the same set up as you

Sun, 2017-08-13 09:19

I'd be having a closer look at you transducer placement I can get clear readings well past 100m cruising at 18 knots. In saying that I don't think you can go far wrong with a thru hull can't help with the choice of tranny sorry. 

Carry's picture

Posts: 625

Date Joined: 22/04/09

Stuffed around

Sun, 2017-08-13 09:22

 I have stuffed around with it heaps and im losing patience . Piss it off and try something else i think

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Carry's picture

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Date Joined: 22/04/09

Kirky

Sun, 2017-08-13 09:27

 Did you live in paraburdoo as a kid

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kirky79's picture

Posts: 1061

Date Joined: 13/01/12

Yeah mate

Sun, 2017-08-13 09:48

 Was born there. Lived there until '93

Aha just figured out who I think it is. 

Stevo81's picture

Posts: 929

Date Joined: 16/04/12

Thru hull with a fairing will

Sun, 2017-08-13 09:32

Thru hull with a fairing will give you best performance at speed but if your fishing 350m you need 1kw which with a fairing is gonna be too big for 6.8m ally. 

SS264 (same elements as your tm260) pair of flush mounts will give you traditional 50/200khz in 1kw or as above a 175H &175L for 1kw chirp which with the lower Q factor will work well on fixed frequency on the 587.

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                                   ••••••••  Electrical Contractor NOR  ••••••••

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Date Joined: 01/02/10

 Ss164 is the same element as

Sun, 2017-08-13 20:53

 Ss164 is the same element as a tm260. 

Ss264 is a split transducer pair. 1kw 50 and 200hz. Much more sensitive. Great combination.

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Carry's picture

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Date Joined: 22/04/09

Chris

Sun, 2017-08-13 09:53

 I think it is i ran into your mum and dad not long ago in wickham . How you been mate . We used to holiday at coral bay with your family when i was a young whipper snapper .

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kirky79's picture

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Date Joined: 13/01/12

Yeah good thanks Tim

Sun, 2017-08-13 10:41

I remember that well. Remember that GM cricket bat you gave me? I could hardly lift it but loved it. Mum & Dad are going well, Mum is giving the Blue Salmon a hard time up at Dundee Beach at the moment. Good luck with the transducer mate

Cheers

Chris

bennym_82's picture

Posts: 68

Date Joined: 18/05/16

SS264 could be an option

Sun, 2017-08-13 20:57

Been looking at options for an Ali hull 1kw as well and a mate sent thru this picture. Might be what you're after?

 

https://i.imgur.com/9L2dQYd.png

bouttime's picture

Posts: 675

Date Joined: 27/07/06

I would be checking your

Mon, 2017-08-14 05:39

I would be checking your location of the TM260 first.

It took me a few places to get it right but I had no worries reading bottom at 30knts out to 150mtrs on 200khz. I was running a 588 and TM260. It was at 50khz it would not read at speed but thats the case with anyone I know who has the same set up.  

I got the shits with mine also and swapped over to full Simrad and a TM185M for fishing out to 300mtrs.

If you do want to change it out a pair of SS264 would be the pick but not cheap. Also if you dont want to drill a hole in the boat or cant access under the floor Bluebottle do a transom bracket for the through hull transducers like what bennym_82 said. Can either bolt or weld it onto ally boats.

Feral's picture

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Date Joined: 01/11/06

 Just curious ?? Why would

Mon, 2017-08-14 23:42

 Just curious ?? Why would you put a SS transducer on a Ali hull ?? Corrosion would be horrible would it not ? Surely there is a plastic 1kw ? ... as stated above id be getting your current one looked at as it should read at well over 35kt

Posts: 3346

Date Joined: 01/02/10

 Brass to ally is the bad

Tue, 2017-08-15 05:23

 Brass to ally is the bad one. The stainless transducers come with a plastic bush so it is fully isolated from the hull. 

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Does anyone know where the love of god goes, when the waves turn the minutes to hours?