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tech / sci.electronics.design / What sits inside of fish finder sonar for personal use ?

SubjectAuthor
* What sits inside of fish finder sonar for personal use ?a a
+* Re: What sits inside of fish finder sonar for personal use ?Ricky
|`* Re: What sits inside of fish finder sonar for personal use ?TTman
| +* Re: What sits inside of fish finder sonar for personal use ?a a
| |+- Re: What sits inside of fish finder sonar for personal use ?a a
| |`- Re: What sits inside of fish finder sonar for personal use ?Fred Bloggs
| `* Re: What sits inside of fish finder sonar for personal use ?Ricky
|  `* Re: What sits inside of fish finder sonar for personal use ?TTman
|   `* Re: What sits inside of fish finder sonar for personal use ?Ricky
|    `* Re: What sits inside of fish finder sonar for personal use ?Chris
|     `- Re: What sits inside of fish finder sonar for personal use ?Ricky
+- What sits inside of fish finder sonar for personal use ?a a
`- Re: What sits inside of fish finder sonar for personal use ?Fred Bloggs

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What sits inside of fish finder sonar for personal use ?

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Subject: What sits inside of fish finder sonar for personal use ?
From: manta1...@gmail.com (a a)
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 by: a a - Tue, 23 May 2023 00:54 UTC

I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.

https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0

Re: What sits inside of fish finder sonar for personal use ?

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Subject: Re: What sits inside of fish finder sonar for personal use ?
From: gnuarm.d...@gmail.com (Ricky)
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 by: Ricky - Tue, 23 May 2023 01:41 UTC

On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
>
>
> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0

What is your criteria for the "right choice"?

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209

What sits inside of fish finder sonar for personal use ?

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From: manta1...@gmail.com (a a)
Subject: What sits inside of fish finder sonar for personal use ?
Newsgroups: sci.electronics.design
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 by: a a - Tue, 23 May 2023 02:13 UTC

>

Darius the Dumb has posted yet one more #veryStupidByLowIQaa article.

Re: What sits inside of fish finder sonar for personal use ?

<a45edfc4-d130-42e0-ad32-061da7c4e770n@googlegroups.com>

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Subject: Re: What sits inside of fish finder sonar for personal use ?
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Tue, 23 May 2023 15:49 UTC

On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
>
>
> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0

Furuno has a 18 chapter course on the topic. They've been working the technology for 75 years and therefore know quite a bit about it.

https://www.furuno.com/special/en/fishfinder/index.html

Re: What sits inside of fish finder sonar for personal use ?

<u4jbo7$2mk64$2@dont-email.me>

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From: kraken.s...@gmail.com (TTman)
Newsgroups: sci.electronics.design
Subject: Re: What sits inside of fish finder sonar for personal use ?
Date: Tue, 23 May 2023 22:38:14 +0100
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 by: TTman - Tue, 23 May 2023 21:38 UTC

On 23/05/2023 02:41, Ricky wrote:
> On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
>> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
>>
>>
>> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0
>
> What is your criteria for the "right choice"?
>
When you see 'nice ones'for a few hundred pounds/dollars, one has to
wonder how good is one going to be that is <<£$100 ?

--
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Re: What sits inside of fish finder sonar for personal use ?

<3b33e6b5-131d-47c0-b4ba-21c9a649751en@googlegroups.com>

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Subject: Re: What sits inside of fish finder sonar for personal use ?
From: manta1...@gmail.com (a a)
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 by: a a - Tue, 23 May 2023 22:06 UTC

On Tuesday, 23 May 2023 at 23:39:37 UTC+2, TTman wrote:
> On 23/05/2023 02:41, Ricky wrote:
> > On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
> >> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
> >>
> >>
> >> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0
> >
> > What is your criteria for the "right choice"?
> >
> When you see 'nice ones'for a few hundred pounds/dollars, one has to
> wonder how good is one going to be that is <<£$100 ?
>

I exactly need to know what sits inside of the ball, number of transmitters, if rotated or not, number of beams, resolution and more what is a standard in USG devices.

This week I plan to get $10 car parking ultrasonic device made of 4 outdoor sensors, small computer and small LED display for distance data and insert a single sensor into water to learn what response can I get.

I love history of development of fish sonars but what if offered at Aliexpress are modern stand-alone fish finder products
starting as low as at $20 (from the link above).

I still hope to get images of the broken fish finder opened (ball) and dismantled into pieces.

Tried hard to get such broken device locally but none offered yet.

Re: What sits inside of fish finder sonar for personal use ?

<6faeb1fb-9542-45f2-a5fe-fd78fea7cc8dn@googlegroups.com>

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Subject: Re: What sits inside of fish finder sonar for personal use ?
From: gnuarm.d...@gmail.com (Ricky)
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 by: Ricky - Tue, 23 May 2023 22:20 UTC

On Tuesday, May 23, 2023 at 5:39:37 PM UTC-4, TTman wrote:
> On 23/05/2023 02:41, Ricky wrote:
> > On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
> >> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
> >>
> >>
> >> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0
> >
> > What is your criteria for the "right choice"?
> >
> When you see 'nice ones'for a few hundred pounds/dollars, one has to
> wonder how good is one going to be that is <<£$100 ?

What is your definition of "nice ones"?

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209

Re: What sits inside of fish finder sonar for personal use ?

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From: manta1...@gmail.com (a a)
Subject: Re: What sits inside of fish finder sonar for personal use ?
Newsgroups: sci.electronics.design
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 by: a a - Wed, 24 May 2023 00:56 UTC

>

Darius the Dumb has posted yet one more #veryStupidByLowIQaa article.

Re: What sits inside of fish finder sonar for personal use ?

<u4m19o$33o25$1@dont-email.me>

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From: kraken.s...@gmail.com (TTman)
Newsgroups: sci.electronics.design
Subject: Re: What sits inside of fish finder sonar for personal use ?
Date: Wed, 24 May 2023 22:58:16 +0100
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 by: TTman - Wed, 24 May 2023 21:58 UTC

On 23/05/2023 23:20, Ricky wrote:
> On Tuesday, May 23, 2023 at 5:39:37 PM UTC-4, TTman wrote:
>> On 23/05/2023 02:41, Ricky wrote:
>>> On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
>>>> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
>>>>
>>>>
>>>> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0
>>>
>>> What is your criteria for the "right choice"?
>>>
>> When you see 'nice ones'for a few hundred pounds/dollars, one has to
>> wonder how good is one going to be that is <<£$100 ?
>
> What is your definition of "nice ones"?
>
Those that will work 'properly' and identify shoals of fish that are
really there..

--
This email has been checked for viruses by Avast antivirus software.
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Re: What sits inside of fish finder sonar for personal use ?

<4110d72e-c05a-44f7-9cc2-73a47a59f8a7n@googlegroups.com>

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Subject: Re: What sits inside of fish finder sonar for personal use ?
From: gnuarm.d...@gmail.com (Ricky)
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 by: Ricky - Thu, 25 May 2023 00:28 UTC

On Wednesday, May 24, 2023 at 5:58:24 PM UTC-4, TTman wrote:
> On 23/05/2023 23:20, Ricky wrote:
> > On Tuesday, May 23, 2023 at 5:39:37 PM UTC-4, TTman wrote:
> >> On 23/05/2023 02:41, Ricky wrote:
> >>> On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
> >>>> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
> >>>>
> >>>>
> >>>> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0
> >>>
> >>> What is your criteria for the "right choice"?
> >>>
> >> When you see 'nice ones'for a few hundred pounds/dollars, one has to
> >> wonder how good is one going to be that is <<£$100 ?
> >
> > What is your definition of "nice ones"?
> >
> Those that will work 'properly' and identify shoals of fish that are
> really there..
> --
> This email has been checked for viruses by Avast antivirus software.
> www.avast.com

Again, define "properly". You keep using undefined terms. BTW, I think you mean "schools", not "shoals" of fish.

How do you know which ones work "properly" and which don't, other than to buy them and test?

This seems to be a circular idea. First, know what is inside, so they can be bought, to see what is inside.

--

Rick C.

-- Get 1,000 miles of free Supercharging
-- Tesla referral code - https://ts.la/richard11209

Re: What sits inside of fish finder sonar for personal use ?

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Subject: Re: What sits inside of fish finder sonar for personal use ?
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Thu, 25 May 2023 16:56 UTC

On Tuesday, May 23, 2023 at 6:06:51 PM UTC-4, a a wrote:
> On Tuesday, 23 May 2023 at 23:39:37 UTC+2, TTman wrote:
> > On 23/05/2023 02:41, Ricky wrote:
> > > On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
> > >> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
> > >>
> > >>
> > >> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0
> > >
> > > What is your criteria for the "right choice"?
> > >
> > When you see 'nice ones'for a few hundred pounds/dollars, one has to
> > wonder how good is one going to be that is <<£$100 ?
> >
> I exactly need to know what sits inside of the ball, number of transmitters, if rotated or not, number of beams, resolution and more what is a standard in USG devices.
>
> This week I plan to get $10 car parking ultrasonic device made of 4 outdoor sensors, small computer and small LED display for distance data and insert a single sensor into water to learn what response can I get.
>
> I love history of development of fish sonars but what if offered at Aliexpress are modern stand-alone fish finder products
> starting as low as at $20 (from the link above).
>
> I still hope to get images of the broken fish finder opened (ball) and dismantled into pieces.
>
> Tried hard to get such broken device locally but none offered yet.

The distance meter and fish finder transducers are completely different. Speed of sound in water is a little less than 5x that in air, and of course water is much denser. It's usually just a rigid planar surface. The air transducer is more like a piezo speaker, and won't work very well submerged in water.

Re: What sits inside of fish finder sonar for personal use ?

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Subject: Re: What sits inside of fish finder sonar for personal use ?
From: chris....@live.com (Chris)
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 by: Chris - Thu, 25 May 2023 22:29 UTC

On Thursday, 25 May 2023 at 10:28:59 UTC+10, Ricky wrote:
> On Wednesday, May 24, 2023 at 5:58:24 PM UTC-4, TTman wrote:
> > On 23/05/2023 23:20, Ricky wrote:
> > > On Tuesday, May 23, 2023 at 5:39:37 PM UTC-4, TTman wrote:
> > >> On 23/05/2023 02:41, Ricky wrote:
> > >>> On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
> > >>>> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
> > >>>>
> > >>>>
> > >>>> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home.1000002.0
> > >>>
> > >>> What is your criteria for the "right choice"?
> > >>>
> > >> When you see 'nice ones'for a few hundred pounds/dollars, one has to
> > >> wonder how good is one going to be that is <<£$100 ?
> > >
> > > What is your definition of "nice ones"?
> > >
> > Those that will work 'properly' and identify shoals of fish that are
> > really there..
> > --
> > This email has been checked for viruses by Avast antivirus software.
> > www.avast.com
> Again, define "properly". You keep using undefined terms. BTW, I think you mean "schools", not "shoals" of fish.
>
> How do you know which ones work "properly" and which don't, other than to buy them and test?
>
> This seems to be a circular idea. First, know what is inside, so they can be bought, to see what is inside.
>
> --
>
> Rick C.
>
> -- Get 1,000 miles of free Supercharging
> -- Tesla referral code - https://ts.la/richard11209

https://tinyurl.com/yc3s368c

Bit parochial, aren't we?

--
Cheers,
Chris.

Re: What sits inside of fish finder sonar for personal use ?

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Subject: Re: What sits inside of fish finder sonar for personal use ?
From: gnuarm.d...@gmail.com (Ricky)
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 by: Ricky - Fri, 26 May 2023 01:49 UTC

On Thursday, May 25, 2023 at 6:30:03 PM UTC-4, Chris wrote:
> On Thursday, 25 May 2023 at 10:28:59 UTC+10, Ricky wrote:
> > On Wednesday, May 24, 2023 at 5:58:24 PM UTC-4, TTman wrote:
> > > On 23/05/2023 23:20, Ricky wrote:
> > > > On Tuesday, May 23, 2023 at 5:39:37 PM UTC-4, TTman wrote:
> > > >> On 23/05/2023 02:41, Ricky wrote:
> > > >>> On Monday, May 22, 2023 at 8:54:38 PM UTC-4, a a wrote:
> > > >>>> I need to get one for tests but there is a lot number of such devices offered on Aliexpress, so I need to know what sits inside to make the right choice.
> > > >>>>
> > > >>>>
> > > >>>> https://www.aliexpress.com/w/wholesale-fish-sonar.html?catId=0&initiative_id=SB_20230522025314&SearchText=fish+sonar&spm=a2g0o.home..1000002.0
> > > >>>
> > > >>> What is your criteria for the "right choice"?
> > > >>>
> > > >> When you see 'nice ones'for a few hundred pounds/dollars, one has to
> > > >> wonder how good is one going to be that is <<£$100 ?
> > > >
> > > > What is your definition of "nice ones"?
> > > >
> > > Those that will work 'properly' and identify shoals of fish that are
> > > really there..
> > > --
> > > This email has been checked for viruses by Avast antivirus software.
> > > www.avast.com
> > Again, define "properly". You keep using undefined terms. BTW, I think you mean "schools", not "shoals" of fish.
> >
> > How do you know which ones work "properly" and which don't, other than to buy them and test?
> >
> > This seems to be a circular idea. First, know what is inside, so they can be bought, to see what is inside.
> >
> > --
> >
> > Rick C.
> >
> > -- Get 1,000 miles of free Supercharging
> > -- Tesla referral code - https://ts.la/richard11209
> https://tinyurl.com/yc3s368c
>
> Bit parochial, aren't we?

It's not my ideas. I'm just trying to understand what they are asking for.

--

Rick C.

-+ Get 1,000 miles of free Supercharging
-+ Tesla referral code - https://ts.la/richard11209

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