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Hds-10 tm260

Old 02-15-2012, 06:31 AM
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Default Hds-10 tm260

Looking for advice on the TM260. I have a HDS-10 & 7 with the latest software installed. I’m using a B744 thru hull on the HDS-10 and the Lowrance 83/200 on the transom. My fishing platform is a 1983 GW trophy Pro single I/O. I fish from 30’ out to 150’. I primarily bottom fish around local wreck. Will the installation of the tm260 give me better definition of the wreck? Is it worth the investment?
If I make the purchase I would replace the Lowrance transducer.
Any thought’s would be appreciated
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Old 02-15-2012, 09:21 AM
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If you went to the Tm260 ( or a M260) I would still keep the B744 as it has excellent coverage at shallow depths. ( 45 / 12 cone.)

Concerning the Tm260 (or M260 )..it will increase your sensitivity 50 times over the B744.
That is because you are going from a single element to an 8 element transducer.
Bigger is better in transducers.
The key here is you will have far greater surface area with the 8 higher quality Tm260 elements. Keep in mind that a transducer is both a transmitter and a receive antenna. The larger the surface area of a receivers antenna the greater the resolution.

Compare the shot below of aTm260 vs a Lowrance skimmer a THT member posted earlier..


Size matters.


Yes, the Tm260 (Or M260) will give far greater definition to your target.
Below are two shots taken on the same boat and at the same time over the same area.

The HDS is running a P66 (Same element as the B744) and the Furuno is running a Tm260.



Shot at 2011-07-03



Shot at 2011-07-03





8 element TM260

Last edited by semperfifishing; 02-15-2012 at 09:48 AM.
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Old 02-15-2012, 09:48 AM
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My plan is to keep the B744 and replace the the lowrance T/D. Is there a switch available so I can switch between transducers?
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Old 02-15-2012, 10:01 AM
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Originally Posted by in2fishn View Post
My plan is to keep the B744 and replace the the lowrance T/D. Is there a switch available so I can switch between transducers?
Yes, there several ways to do that...good idea.
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Old 02-15-2012, 11:05 AM
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Originally Posted by semperfifishing View Post
If you went to the Tm260 ( or a M260) I would still keep the B744 as it has excellent coverage at shallow depths. ( 45 / 12 cone.)

Concerning the Tm260 (or M260 )..it will increase your sensitivity 50 times over the B744.
Since he will be fishing between 30 and 150' and would like to get better definition of the wrecks I assume he will be using 200kHz and thus gain 13x not 50x (as for 50kHz) increased sensitivity.

It seems for me as the HDS and Furuno above both are running at the same time, the HDS is showing typical interference. HDS is not intended to be operated simultaneously with another fishfinder operating at the same frequency due to the low transmit power and high sensitivity receiver.
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Old 02-15-2012, 12:55 PM
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Originally Posted by abbor View Post
Since he will be fishing between 30 and 150' and would like to get better definition of the wrecks I assume he will be using 200kHz and thus gain 13x not 50x (as for 50kHz) increased sensitivity.
The question was..will there better definition..and the simple answer is yes, and on either the 200k or 50 k side.
And that answer would be true with any level of transducer upgrade.
The B164, the Tm258 both would have a gain over any single element unit.


I personally like to use split screen when using a Tm260 as then I get the best of both paramaters.
And in shallow water, the 50 k side of the Tm260 is a real performer.


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Old 02-15-2012, 01:22 PM
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To study details of wreck at 150' the narrower beam is as important, if not more important, than the increased sensitivity when comparing B744V with TM260.

I prefer to use split screen with the full watercolumn in one window and a zoomed window of the depth interval of interest. I always use 200kHz for this, I sometimes run 83 or 50kHz on one of the other fishfinders.
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Old 02-15-2012, 02:51 PM
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Abbor,

In your area..you must have some WWII wrecks you fish?
Any screen shots of those.
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Old 02-15-2012, 03:26 PM
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Are you already using StructureScan on this boat? If you aren't then buy that before a TM260.
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Old 02-16-2012, 09:10 AM
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Jim
Thanks for the return call. I Do use the down scan for better detail when looking at the wreck. I have a attached a few pic for comparison. Will the detail be better with the TM260?
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Old 02-16-2012, 11:03 AM
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Originally Posted by yachtjim View Post
Are you already using StructureScan on this boat? If you aren't then buy that before a TM260.
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