Author Topic: Transducer Interference  (Read 176 times)

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Offline andrewg

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Transducer Interference
« on: December 14, 2019, 02:59:37 AM »
Hello,
I was wondering if any has experience with placing 2 transducers belonging to 2 echo sounders would create any cross signals?
I am planning to place 2 tranducers on different positions on a boat. Probably about 2 meters apart. Each will be recording onto their own sounder unit. I plan to use this setup for a fast sea bottom survey of a lake. Having 2 transducers would create 2 dataset for every boat passage. Saves both time & the 2 dataset would complement each other for any skips in the data recordings.

I am just worried that signals from 1 transducer would be picked up by the other echo sounder and thus create a cross signal. Not really familiar with the science behind the technology. I just need to record correctly the depth from each transducer/sounder because the depth from each unit will have a corresponding XYZ value from it's corresponding GPS receiver.
Thank you.


Offline Rüdiger

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Re: Transducer Interference
« Reply #1 on: December 14, 2019, 03:53:09 AM »
Hi

When two tranducer are used at the same time, the signals actually overlap. In this case it is better to use different frequencies (200khz-80khz). However, there can also be dropouts.

mvh
Rüdiger
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English is not my first language !

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Offline andrewg

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Re: Transducer Interference
« Reply #2 on: December 14, 2019, 08:06:39 PM »
Thank you for the reply.
So if I set 1 echo sounder to 80khz & the other to 200khz, each sounder will only record its set frequency and won't record the other transducer's frequency? If that's the case then that is the setting that I need.
Regards.

Offline Rüdiger

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Re: Transducer Interference
« Reply #3 on: December 15, 2019, 04:18:17 AM »
Yes

80-200 for DI and 400-800 for SI

mvh
Rüdiger
Sorry
English is not my first language !

German Forum
http://suchen-orten-bergen.xobor.de/


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