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Old 09-09-2017, 10:02
Anthony Pearson's Avatar
Anthony Pearson Anthony Pearson is offline
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Default Deeper Smart Sonar Pro Plus

The new Pro Plus has a mapping facility due to it's GPS function. Has anyone used one of these to map a river bed and if so, how accurate have you found it to be? I've heard that they can't map anything under about 2-3 feet depth so they have limitations. Also, what are they like for showing underwater snags?

If you are against the use of this technology, I can understand to a point. However, I'm doing 150 mile round trip to the river I fish, so anything that can save me time leading around may be worth the investment. A day spent mapping stretches might be very fruitful in terms of feature-finding and obviously my future sorties wouldn't involve any spooking of the fish whilst trying to locate such features.

I'd be interested to hear from anyone about this model or the others in the range if you've used them.
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Old 09-09-2017, 21:46
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Judging by the response, very few anglers on here are using these on rivers. I've been trawling through the various sites and came across this review:

Really nifty piece of kit, have tried it out on three different sets of ponds mainly using it as a base mapper for decorative lakes in gardens. Wi-fi connected well with tablet. Instructions basic but adequate. From my point of view a few minor issues have been noted:
1) in theory measures down to 0.5-0.6m depth, but in practice won't measure less than 0.7-0.8m
2) In the Cotswolds the GPS is variable, and would not connect at one site
3) The app noted a handful of 'fish' (including one large one) in a series of new ponds where I know there are no fish, so false positives will occur if you are actually looking for fish
4) Possibly as it measures from the very surface, the temperature reading from the device reads a few degrees above the water temperature measured by me at a few inches depth.


The variable GPS connection is something that hadn't crossed my mind and the 'ghost fish' are a little worrying for those who rely on this feature (not my cup of tea). The accuracy of the system (that is identifying the precise location you are standing) is only to within about fifteen metres, but if you are mapping from a single point, this shouldn't cause too many issues.

I'm waiting for a response from the company regarding the depth contour intervals that appear on the bathymetric maps. I suspect that these are not in one foot intervals and if that is the case, they would be pretty useless on all but the biggest of our rivers.

If I hear anything, I'll post it on here.
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Old 09-09-2017, 23:05
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Jon Frisby Jon Frisby is offline
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I have had a fish finder for over 5 years and it sounds like yours has the same niggles as mine. However I have turned it into positives. I don't bother with rivers 2 to 3 foot deep. I can generally see the bottom and spot gradients by sight. I don't look for fish either as on a big river, you can't really prove either way. The plus is using it for the depths and the river contours this is the money winner and from what I have seen yours will be fine. Use the data that s relevant.
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Old 10-09-2017, 15:49
Michael Foster Michael Foster is offline
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Very useful pieces of kit. Can save hours of casting a lead around.
Used an old smartcast to map a length of the Thames below Oxford just before the start of the season. Found two drop offs to 19ft that we never new existed. Ran it over a couple of prebaited swims to give ourselves an idea of what was happening down there, quite interesting.
Few years ago used a similar device on a local pit, found a distant deep drop off and gulley in no time, again saved a lot of time splashing around with a lead. Proved to be a very good Tench swim.
Would consider getting the Pro Plus myself, If I can get one of my tight mates to cough up half!
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Old 10-09-2017, 16:47
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Am personly against these gadgets for finding fish. I feel it takes all the fun and skill in Angling. But what you are using is for is a great idea. You may have slightly changed my mind on the use of these things.
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Old 11-09-2017, 15:02
Chris Guy Chris Guy is offline
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I've got an app for that.
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Old 11-09-2017, 17:29
Neil Smart Neil Smart is offline
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Quote:
Originally Posted by Iain Tutt View Post
Am personly against these gadgets for finding fish. I feel it takes all the fun and skill in Angling. But what you are using is for is a great idea. You may have slightly changed my mind on the use of these things.
Nooooooooo, what next a bait boat?
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Old 11-09-2017, 22:18
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Anthony Pearson Anthony Pearson is offline
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Yep...and he can fit the sonar to the boat!
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Old 11-09-2017, 22:32
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Just checked my emails and got this reply:

Thank you for contacting us

Yes, those are 1-meter intervals, thus, the colors with 1-meter increments are changed. However, on the phone, you can click on the specific place on the map and you will get the exact depth of the specific coordinates.

Hope this helps. Please let us know if there is anything else we could help you with.

Now this to me makes the mapping function very limited for many rivers and lakes in the UK and France. A metre interval isn't going to show much detail. Yes you can cast click over a map and get the exact depth, but unless you do this everywhere, some of the smaller features could be missed.

Rather disappointing and consequently I'll not be rushing out for the Pro+ model.
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Old 11-09-2017, 23:02
Chris Guy Chris Guy is offline
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Jeez..
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