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Ideal Transducer for Offshore Fishing

Old 09-11-2019, 01:44 PM
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Location: Silver Spring, MD, USA
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Default Ideal Transducer for Offshore Fishing

I plan to replace the electronics package on my boat this winter. The transducer will be upgraded. I am leaning toward Garmin components.

What is the ideal transducer setup for fishing offshore out of MD? We do fish deep and I'd like to be able to red bottom out beyond the shelf. I tile fish in 300 - 800 feet of water. It would be great to be able to mark bigeye or swords down deep during the day. I'd like to be able to read bottom at speed and be able to read bottom in 1000 fathoms.

Obviously I'd like to be able to mark game fish and bait in the upper water column as well while trolling for tuna, marlin etc.

I'm not opposed to installing multiple transducers if that is the best solution. What are the big boats running?

I've read the furuno and garmin transducer guide but they didn't help much.

Thanks.
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Old 09-11-2019, 02:45 PM
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Try posting this in the Electronics section for more responses.

You want a 3kw chirp transducer if fishing that deep with the low and medium frequencies (R599LM) paired with a B175HW (1kw high wide frequency) for trolling and marking pelagics in the upper water column. You will need to pair the two transducers with the Garmin GSD 26 black box sonar module to feed the Garmin MFDs. This is the best two transducer set up out there. You do not really need higher than a 1kw for the upper water column since you are not trying to penetrate that deep. The 3kw should read bottom in 1,500 feet at speed and will read bottom in 3,500 feet moving slowly. With these two transducers you have the entire frequency spectrum covered. The wide allows for the most coverage under the boat down to about 500 feet at the highest level of detail. The lower the frequency the lower the detail.

Furuno makes a good product and is what most of the top billfish tournament teams are running. Their electronics setups are crazy expensive ($100k+) and are in a league of their own... but they are the best and some of the team have it dialed in.

B175HW - AIRMAR
R599LM - https://www.gemeco.com/transducer-de...ansducer=R599C
GSD 26 - https://buy.garmin.com/en-US/US/p/86234
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Old 09-11-2019, 06:08 PM
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I run a closet set up. 2 Old Furuno MFD 12 displays DFF1-UHD and a B275LHW. Outstanding and marks everything. Then networked it to a Garmin 7612xsv pulling information from a GSD 26 powering a 599lm. The Garmin also drives my garmin auto pilot. Outstanding setup in 200ft chasing tuna on the flats or in deep water in the canyons. Go to manual range 300 for the 275HW. Run the 599lm in med on troll. Deep dropping split frequencies
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Old 09-12-2019, 06:27 AM
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I went with the B265LH instead of the B275LHW and have been happy with it.
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