Transducer advice

 Hi guys, looking for advice in what to do next, higher, lower, angle, have fitted tm260 transom when out yesterday got a great pic up to 10-12 knots then start to lose picture/bottom, looked like it was sitting in clean water, anyone had similar problem?

cheers jay 

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Posts: 6454

Date Joined: 08/08/11

 I would like to know if

Thu, 2014-06-05 17:09

 I would like to know if anyone gets a decent picture when they are travelling at more than that speed???  I only have a cheap furuno so the picture isn't great at speed or depth.  Upgrading later this year to a smiko simrad nss7.  Not sure what to expect at speed???

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Fish! HARD!

Posts: 6265

Date Joined: 26/04/14

 looks a little high and

Thu, 2014-06-05 18:06

 looks a little high and slightly tilted down, as towards the bow of boat not level, just my opinion, my lowrance hds 8 gen2 is awesome at speed

jng's picture

Posts: 488

Date Joined: 03/08/07

 I've got the tm260, and can

Thu, 2014-06-05 18:04

 I've got the tm260, and can get clear pic doing 30knotts. (Not that it's useful doing 30knotts looking for structure/fish)

 

hard to to tell from the pic, but it does look a tad to high

Posts: 2946

Date Joined: 03/03/10

loose my screen

Thu, 2014-06-05 18:17

I loose my screen at about the same speed maybe even a bit slower (huminbird 788dhci) I have played about with the angles of the transducer but still the same

sandbar's picture

Posts: 704

Date Joined: 25/10/09

High

Thu, 2014-06-05 19:36

 As suggested, looks a little high.

 

I have 2 sounders, lowrances, 1 is a 5x elite and the other gen2 hds 5 combo. I was having trouble with reading over 10 knots but with some tweaking I have both getting a clear picture at my top speed of 28knots. I had to move them closer to the motor and raise one. It was an inch under the hull. F*(king headache at first but I am glad I persisted.  

 

Marineboy's picture

Posts: 838

Date Joined: 14/03/14

High

Thu, 2014-06-05 19:50

 Correct me if I am wrong the trannys are better off being a little low in the water rather than high to my knowledge the only downside to them being low is a possible rooster tail at the back of the boat. 

Try dropping it a bit and levelling it out. 

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 My spots are so secret even the fish don't know about them !

Simon C's picture

Posts: 801

Date Joined: 01/05/07

Run a straight edge

Thu, 2014-06-05 20:21

 Along your hull to the front of tranny - should be at least 1cm below hull level. You will rooster tail on a plate hull if you want to read at speed. My 270w reads up to 35knots but does spray

little johnny's picture

Posts: 5320

Date Joined: 04/12/11

doesnt look high to me

Thu, 2014-06-05 20:45

possible to close to motor .I always have my 2 a good distance from motor.i always line my pads inbetween ribs underneath my hull.that way you get no bubbles ect interfering with sounder pad unsure.no expert .good luck

DhuieJ's picture

Posts: 88

Date Joined: 20/05/09

 Thanks guys will have a play

Thu, 2014-06-05 21:44

 Thanks guys will have a play this weekend!

kirky79's picture

Posts: 1351

Date Joined: 13/01/12

 Maybe too close to the prop

Thu, 2014-06-05 22:03

 Maybe too close to the prop wash as johnny mentioned. I have a TM 260 and went off airmars site when installing I thought mine may of been too close to the prop but works fine at speed. Goodluck

Chris

Posts: 251

Date Joined: 28/07/11

Go Lower!I only have P66 600W

Fri, 2014-06-06 12:17

Go Lower!

I only have P66 600W and have it as low as it can go and get a clear reading to 30knots. It was originally mounted outside of the trim tab and I was getting an ordinary reading there so i moved it inside of the tab which is probably a bit too close to the prop according to Airmars specs but i couldnt be happier with the reading.

big blue's picture

Posts: 57

Date Joined: 25/03/10

got the same TD in shoot thru

Sat, 2014-06-07 18:20

got the same TD in shoot thru set up ..... looses bottom anything over 15-16kts sometimes will hang on to it up to 20 but needs to be really good day
considering upgrading to 3kw TD set up later this year myself
hope that helps