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Old 19 January 2004, 04:30   #11
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Mine works not too badly at speed, the problem I have with my Garmin is that the bottom definition is none too clear and it sometimes does't pick up the bottom at trolling speed or in shallow water. I have improved it a fair amount from the original install by moving the transducer around (it was installed exactly as instructions originally) but it is still far from perfect.
I have only had it since November but given the choice again I wouldn't buy another Garmin sounder. I am very pleased with the Garmin plotter though.
I would probably go for a Lowrance, had good results in the past from them.
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Old 19 January 2004, 16:29   #12
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Hi ya Simmo,

Had a brill day on the last day of LBS and also bought Silva S10 and Garmin GPS. It also leaves me to purchase a FF.

Just to be safe I'd keep clear of Garmin for FF's (too much negative feedback man), and choose a different MNFR's. My fav's are Humminbird, Navman, Lowrance and Eagle.

Navman is the best spec.ed, with Log/speed and water temp at quite a resonable price.

I am attracted to the cheap Humminbirds and Lowrance's range though, but I'll make my desision based on the physical size on the unit as I've not a lot of room to fit one.

As for a depth sounder working at speed (over 20knts), I think if you are wrorried about depth and need useful info over this speed then your going too dam fast!!!

Keep me updated on your FF purchase though

Andy G
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Old 19 January 2004, 16:34   #13
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OOh, fill me in, How much did you pay for the Silva s10?

And which plotter did you go for? How much? and did you buy any bluechart chips with it?

thanks.
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Old 19 January 2004, 16:40   #14
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I'll PM you Simmo as I wouldn't want to shock "the community" in how cheap I got them
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Old 19 January 2004, 17:00   #15
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How is the s10 as this is the one I am thinking of getting Graham
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Old 19 January 2004, 17:12   #16
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Just for info i had a Navamn FF which i had a little trouble getting to read well.

I'm still having trouble with the Garmin.

I've never had trouble with Eagle or Lowrance.

Just observations!

I stand by the need to know the depth at all speeds, i like going at 25knts+ and i like 'exploring' new areas, sometimes at these speeds, and i can stop quite quickly, so if it's 25ft deep and drops to 20 then to 15 i'll slow down very quickly. I don't have the data to do this with my current Garmin unit at these speeds.

--edit--

However i do appreciate what Kevin is saying about this not being what they are designed for. Does anyone know if a 'depth sounder' that JUST reads numbers is more reliable at doing so? Does a fishfinder do some maths on the (large amount) of returned data hence more likely to loose a depth reading?
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Old 20 January 2004, 19:22   #17
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My 160 Blue loses signal at c12kts - even Ageing Youth could not make a case that that is high speed. However the culprit may be the Airmar transducer rather than the sounder itself. See the thread below "Garmin 160 Blue and Alternatives" (last post 5 Jan) for more info, incl a link on thro-hull mounting.

Once the signal is lost on the 160 the only way to get it back is to slow to a halt. If you want to spend your day stopping and starting get a 160, if you want to avoid problems get something else.

Mike.
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Old 21 January 2004, 03:50   #18
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Anyone tried the depth sounder option on the Optimax instruments? Apparently it just requires a transducer so I'm going to give it a go - just got to build the boat first!
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Old 21 January 2004, 04:19   #19
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It's an airmar transducer which is the same as garmin. I've only go the waterspeed / temp one, i'll be interested how you get on but i decided the display would not be that big.
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Old 21 January 2004, 04:24   #20
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Normally Airmar has various options of transducers pending on the speed your boat is doing (low speed and high speed version) and it would be good idea contact them direct in the USA or their European office in Denmark. They are normally very helpful.
www.airmar.com
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