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Furuno TVG settings

Submitted by Gunner966 on Fri, 2014-03-14 07:49

 Hi all,

I run my TVG high on as suggested by Greg Lampret from Wicked Fishing. I notice that some people here suggest that to run it on Medium. I tried that on that over the last few Days at Cervatnes and I didn't notice a lot of difference apart having the shift my gain from 2.4 in 60 - 70mtrs to 4+. What are the benefits in running your TVG on Meidum or even low?

Cheers Gunner

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DTrain

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Date Joined: 10/02/12

Turning up the TVG makes the

Fri, 2014-03-14 09:13

Turning up the TVG makes the signals near the surface weaker and the signals near the bottom stronger.

When you get deeper and have to crank the gain up a bit, then it can help to set the TVG higher in order to reduce surface clutter and increase the bottom signal. The surface clutter doesn't really make that much difference though because you usually just zoom in on the bottom anyway.

The disadvantage of having it set too high would be that you might miss fish that are near the surface or in shallow water.

 

JohnF

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 medium for all but deep

Mon, 2014-03-17 22:04

 medium for all but deep stuff (over 150 m), then go high. 

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Gunner966

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Date Joined: 23/04/13

Thanks guy's What is the

Mon, 2014-03-24 19:35

Thanks guy's
What is the theory behind Medium TVG in the shallower water John F?

JohnF

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Date Joined: 07/07/10

 dunno mate, it just

Mon, 2014-03-24 21:46

 dunno mate, it just works.....

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Boston Whaler 235 Conquest......getting the flogging it was built for.

Gunner966

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Date Joined: 23/04/13

 Thanks John.at least you are

Tue, 2014-03-25 20:27

 Thanks John.

at least you are honest. Lol

 

snappermiles

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time varied gain

Wed, 2014-03-26 02:58

the tvg function or time varied gain means as you go deeper the signals take longer to return to the transducer as these signals get longer the time varied gain increases! i run mine on medium too its just what is recommended! anything over 150 metres i set mine to high!

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Gunner966

Posts: 145

Date Joined: 23/04/13

Thanks guy's

Tue, 2014-04-01 11:13

Thanks guy's