Garmin GT15M-TM vs Airmar TM150M

[LWINCHESTER2]

Troy did a pretty comprehensive comparison of the GT8HW with the Airmar TM150.
http://www.bbcboards.net/showthread.php?t=684847

The GT52 has the same 2d element as the GT8. I can remember when the consensus was that if you wanted a really 1st class transducer, your only choice was Airmar. Not any more. No question. Garmin leads the pack. I use the little GT8 for all kinds of experiments; point it forward, to the side, behind the boat. Stellar performer.

I'm not kidding about Humminbird and Lowrance and splicing cables to use Garmin transducers. Here is how I do it. I don't cut the transducer cable. I've bought transducer extension cables for them. I do the cutting and splicing in the extension cables to give me the connectors I want on each end. It don't always work. It takes some time to get the pinouts, color coding and watts going to the xd. Airmar has warned me that I'm going to fry the electronics and xd. I've been doing it for years and so far I haven't.
To use the GT15 on off-brand units the transducer setting would be for the Airmar TM150.

[SHOTGUN RUSS]

Very close in both, I would give a very narrow edge to to TM150 with more detail, the GT15 seems slightly hotter in returns and loses a little definition (could be tweaked with gain?)

[csloftis]

Leonard, great information as always

Troy did a pretty comprehensive comparison of the GT8HW with the Airmar TM150.
http://www.bbcboards.net/showthread.php?t=684847

The GT52 has the same 2d element as the GT8. I can remember when the consensus was that if you wanted a really 1st class transducer, your only choice was Airmar. Not any more. No question. Garmin leads the pack. I use the little GT8 for all kinds of experiments; point it forward, to the side, behind the boat. Stellar performer.

I'm not kidding about Humminbird and Lowrance and splicing cables to use Garmin transducers. Here is how I do it. I don't cut the transducer cable. I've bought transducer extension cables for them. I do the cutting and splicing in the extension cables to give me the connectors I want on each end. It don't always work. It takes some time to get the pinouts, color coding and watts going to the xd. Airmar has warned me that I'm going to fry the electronics and xd. I've been doing it for years and so far I haven't.
To use the GT15 on off-brand units the transducer setting would be for the Airmar TM150.