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Are Transducers Interchangeable?

Old 04-17-2019, 10:44 AM
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Default Are Transducers Interchangeable?

Hello all,

I purchased a 21í Hydra Sports DC with a garmin GPSMap 188 already installed. I also recently purchased a SIMRAD NSS9 with a totalscan transducer.

My my problem is that the boat is already in the water for the season... for now, would I be able to hook up the SIMRAD to the Garminís transducer thatís already in there?

thanks in advance...

Last edited by CRSO; 04-17-2019 at 07:31 PM.
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Old 04-17-2019, 07:31 PM
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Old 04-17-2019, 08:02 PM
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They will not be able to share sonar/transducer. If you’re replacing the Garmin, The transducer can most likley be adapted (wiring harness) to work with the Simrad.

Aimar has many different in-hull transducers that can be installed while the boat is in the water. They will all be much better than what is currently installed with the Garmin.
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Old 04-18-2019, 06:30 AM
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Originally Posted by davidwademarine View Post
They will not be able to share sonar/transducer. If youíre replacing the Garmin, The transducer can most likley be adapted (wiring harness) to work with the Simrad.

Aimar has many different in-hull transducers that can be installed while the boat is in the water. They will all be much better than what is currently installed with the Garmin.
yes thatís the plan; I want to use the transducer thatís there with the SIMRAD and disconnect the Garmin until I figure a way out to install the Totalscan Transducer.

Iíd need an adapter?
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Old 04-18-2019, 07:22 AM
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If the transducer is An airman transducer - you can probably get an adapter cable to get it to work. If itís a transducer exclusive to Garmin, it may be more problematic.

I think you need need to identify what kind of transducer you have and want to deal over before anyone can give you any advice.
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Old 04-18-2019, 08:07 AM
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Originally Posted by CRSO View Post
Hello all,

I purchased a 21’ Hydra Sports DC with a garmin GPSMap 188 already installed. I also recently purchased a SIMRAD NSS9 with a totalscan transducer.

My my problem is that the boat is already in the water for the season... for now, would I be able to hook up the SIMRAD to the Garmin’s transducer that’s already in there?

thanks in advance...

the transducer supplied with the GPSMAP 188 is a very marginal 500 watt unit...I think it was designed for rain puddles and or hot tub use...

To get you by for the rest of the season you can install a Airmar P75C-M-9N ...CHIRP shoot thru....that will give you very good results for targets down to about 500' and bottom tracking much deeper.

For a non CHIRP......you can use the 50/200 kHz P79-MM-9N


both of these are an easy install..while your boat is still on the water.
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Old 04-19-2019, 04:21 PM
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Originally Posted by semperfifishing View Post
the transducer supplied with the GPSMAP 188 is a very marginal 500 watt unit...I think it was designed for rain puddles and or hot tub use...

To get you by for the rest of the season you can install a Airmar P75C-M-9N ...CHIRP shoot thru....that will give you very good results for targets down to about 500' and bottom tracking much deeper.

For a non CHIRP......you can use the 50/200 kHz P79-MM-9N


both of these are an easy install..while your boat is still on the water.
Thank you very much for the reply but Iíd rather not purchase one if i donít have to. i recently purchased a totalscan transducer. Can I install this while in the water?
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Old 04-19-2019, 06:05 PM
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The total scan is a transom mount...so you may get a little wet.. as you said your boat is in the water for the season........but no harm trying.

Last edited by semperfifishing; 04-19-2019 at 06:21 PM.
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Old 06-12-2019, 06:30 PM
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Default Transducer

here is the end of the transducer cable that plugs into the Garmin.

Anybody know off hand if they make an adapter from this to the SIMRAD?

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Old 06-13-2019, 04:47 AM
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Contact Gemeco (owned by Airmar). If there is an adapter cable they will have it. Note that although an adapter may be available the actual transducer may or may not be compatible. Gemeco may have a cross reference chart or be able to assist you on the phone.
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