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Two Transducers with Garmin 7612xsv

Old 02-23-2015, 02:23 AM
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Default Two Transducers with Garmin 7612xsv

Just to be clear (manual is not clear on port configuration at all), there are two transducer ports on the new 7612xsv, one 8 pin and one 12 pin? So it is possible to use the GT51 combo transducer and also use a conventional CHIRP like a PM265LH at the same time connected to the same display unit?
Old 02-23-2015, 04:13 AM
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Originally Posted by Nomans View Post
Just to be clear (manual is not clear on port configuration at all), there are two transducer ports on the new 7612xsv, one 8 pin and one 12 pin? So it is possible to use the GT51 combo transducer and also use a conventional CHIRP like a PM265LH at the same time connected to the same display unit?
No, you can only use single band CHIRP transducers like the TM150M, B150M, B175H, M, L, HW, B75H, M, and L while using the GT51. The GT51 uses the 12 pin port, and so will the dual band transducers like the PM265.
Old 02-23-2015, 04:32 AM
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If your running a new garmin network is there any advantage to getting a gsd 26 with a b275 or stick with the built in on the 7612 (2 8215 and a 7612)?
Old 02-23-2015, 04:55 AM
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Originally Posted by fishbone24 View Post
If your running a new garmin network is there any advantage to getting a gsd 26 with a b275 or stick with the built in on the 7612 (2 8215 and a 7612)?
Stick with the built in on the 7612. The GSD26 should only come into play with the bigger 16 and 25 element transducers.
Old 02-23-2015, 05:20 AM
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Originally Posted by stiletto View Post
No, you can only use single band CHIRP transducers like the TM150M, B150M, B175H, M, L, HW, B75H, M, and L while using the GT51. The GT51 uses the 12 pin port, and so will the dual band transducers like the PM265.
Thanks. Out of curiosity, where did you find information on ports? I looked through owner and installation manuals and there isn't even a diagram of back of unit.
Old 02-23-2015, 05:21 AM
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I will post a diagram of the back of the unit later today for you.
Old 02-23-2015, 05:43 AM
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Originally Posted by Nomans View Post
Thanks. Out of curiosity, where did you find information on ports? I looked through owner and installation manuals and there isn't even a diagram of back of unit.
Probably on here or Garmin product announcements. Not sure, but the 12 pin and 8 pin ports have been discussed and what they can accept transducer wise.
Old 02-23-2015, 06:14 AM
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Default Flush mount

Thanks for all your help,

I decided that the 7612 is what I will need.I hope they will be shipped by early March as advertised!
Which of those single band chirps would you recommend if it needs to be a flush mount(dry stack), most likely less than 200 ft of fishing?
If I run transom mount gt51, do I need two mounts, one for port and one for starboard if I have a 27 ft gamefish cc with twin yammys?
If I will need two transducers on the transom (GT51) to accomplish side views, will there be enough ports? Can I use a Y converter cord?

Thanks again.
Old 02-23-2015, 06:19 AM
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Originally Posted by tridogs View Post
Thanks for all your help,

I decided that the 7612 is what I will need.I hope they will be shipped by early March as advertised!
Which of those single band chirps would you recommend if it needs to be a flush mount(dry stack), most likely less than 200 ft of fishing?
If I run transom mount gt51, do I need two mounts, one for port and one for starboard if I have a 27 ft gamefish cc with twin yammys?
If I will need two transducers on the transom (GT51) to accomplish side views, will there be enough ports? Can I use a Y converter cord?

Thanks again.
All depends on your fishing. You might be able to get away with one GT51 between the two engines, not sure how much blockage there might be on that boat. The GT50 is better if you are usually in less than 100', mostly more than 100' the GT51 is a better choice. You might not need an additional single band transducer. I would go with the GT and see if you like it. If you find it doesn't suite your needs you can always add a transducer. And yes, the GT50 and GT51 can run dual with a Y cable.
Old 02-23-2015, 06:27 AM
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Fwiw I have the 7610xsv coming in. Already have the gt51tm. Planning on installs the gt51 low and next to side of plug. My understanding is this would suffice with a single transducer. Can't do the keel.
Old 02-23-2015, 08:59 AM
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Isn't the Garmin b260 1kw dual frequency and its 8pin?

On my new build we were planning on going with
Dual 7612xsv's with an airmar b265 and gt51m-thp for Downvu and sidevu.

But from what I've seen in this thread it doesn't look like it's going to work.

Last edited by DanFleener; 02-23-2015 at 09:30 AM. Reason: Spelling
Old 02-23-2015, 09:54 AM
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Originally Posted by DanFleener View Post
Isn't the Garmin b260 1kw dual frequency and its 8pin?

On my new build we were planning on going with
Dual 7612xsv's with an airmar b265 and gt51m-thp for Downvu and sidevu.

But from what I've seen in this thread it doesn't look like it's going to work.
The B260 is two fixed frequencies diplexed over a single signal line that goes into the 8 pin connector. The B265 has two independent signal lines and has a 12 pin connector (or it will anyways). In order to have B265 with GT51, you will need either a GSD26, GSD25 or two XSV displays.
Old 02-23-2015, 01:38 PM
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I spoke with a garmin rep who said "the 7600 series will only give standard sonar, not chirp, the down vu/side vu is chirp, u need the gsd 26 to get the full chirp out of the b275"?
Originally Posted by stiletto View Post
Stick with the built in on the 7612. The GSD26 should only come into play with the bigger 16 and 25 element transducers.
Old 02-23-2015, 02:10 PM
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Originally Posted by fishbone24 View Post
I spoke with a garmin rep who said "the 7600 series will only give standard sonar, not chirp, the down vu/side vu is chirp, u need the gsd 26 to get the full chirp out of the b275"?
Either the Garmin rep was just flat out wrong, or you misunderstood his answer, or you asked the question differently. Definitely a CHIRP sonar in there. You can hook up a non-CHIRP transducer like the B260 and operate it non-CHIRP.

Last edited by stiletto; 02-23-2015 at 04:29 PM.
Old 02-23-2015, 03:33 PM
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Originally Posted by fishbone24 View Post
I spoke with a garmin rep who said "the 7600 series will only give standard sonar, not chirp, the down vu/side vu is chirp, u need the gsd 26 to get the full chirp out of the b275"?
I bet he was just back from Happy Hour.....


As stilleto mentioned.....the 76XX xsv units are all with built dual band CHIRP... built in CHIRP Side and Down Vu.


https://buy.garmin.com/en-US/US/on-t...rod169210.html

12-inch Multi-touch Widescreen Chartplotter/Sonar Combo
12-inch multi-touch widescreen display (1280 x 800 WXGA) preloaded with both BlueChart® g2 U.S. coastal and LakeVü™ HD maps
Built-in dual CHIRP sonar plus CHIRP DownVü and CHIRP SideVü scanning sonar with the clearest images on the water (transducer sold separately)
High-sensitivity internal 10 Hz GPS/GLONASS
Fully network capable for Garmin Marine Network and NMEA 2000®, plus NMEA 0183 support
Supports GSD™ 26 professional sonar module




Last edited by semperfifishing; 09-12-2016 at 07:25 PM.
Old 02-23-2015, 04:09 PM
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Originally Posted by Nomans View Post
Just to be clear (manual is not clear on port configuration at all), there are two transducer ports on the new 7612xsv, one 8 pin and one 12 pin? So it is possible to use the GT51 combo transducer and also use a conventional CHIRP like a PM265LH at the same time connected to the same display unit?
Thinking of going to the darkside Fred? Garmin for even you?
Old 02-23-2015, 05:08 PM
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Here is a drawing of the rear of the unit. I believe someone here asked for it.

Old 02-23-2015, 05:36 PM
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It sounds like you are more knowledgeable than him! Actually I was pretty clear, so to get it right... There would be no distinct advantage to get a gsd 26 (with a b275) , assuming money is no option. Just want to be crystal clear as I build the new boat. Thx

Originally Posted by stiletto View Post
Either the Garmin rep was just flat out wrong, or you misunderstood his answer, or you asked the question differently. Definitely a CHIRP sonar in there. You can hook up a non-CHIRP transducer like the B260 and operate it non-CHIRP.
Old 02-23-2015, 05:50 PM
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Originally Posted by fishbone24 View Post
It sounds like you are more knowledgeable than him! Actually I was pretty clear, so to get it right... There would be no distinct advantage to get a gsd 26 (with a b275) , assuming money is no option. Just want to be crystal clear as I build the new boat. Thx
There can be many explanations, so I'll go with you two just didn't communicate clearly together.

The GSD25 should (not on the market yet, so should is as far as we can go) perform equally with the GSD26 when using a B275. The GSD25 is the same sonar built into the 76xx XSV series. So if I were building a boat, and money were no object, the only reason I would get a GSD26 over a GSD25 would be if I had ideas of putting one of the huge 16 or 25 element transducers in my boat to see fish at depths greater than 1000' and bottom down to 10000'. Otherwise I am going with a GSD25 or the built in sonar of the XSV without a doubt.
Old 02-23-2015, 06:01 PM
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Great info! Thanks for posting.

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