Furuno tvg

 Hi all I have a fcv 627 and on Sunday had a play with the TVG settings , normally don't use this function or have it on low but decided to have a play with very poor results .

Turnig the setting up to high or even med resulted in a screen full of vertical lines mainly yellow , this obviously didn't seem right so I turned the function off but in hindsight should have played with the clutter/colour erase or even the basic gain to see if I could dial it out .

Anyone have this setting sussed ??? Furuno market it as a special function so I presume there is some merit to it or they wouldn't have developed it . 

I presume the function applies to the bigger units aswell although I have noticed that the deep drop guys use it more so maybe it's a bigger unit/ power thing ???

Cheers for any info fishfish 


wangler's picture

Posts: 607

Date Joined: 26/04/08

How deep/shalow

Mon, 2013-06-17 19:14

 were you ?

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Want to make someone mad... tell a lie! Want to get the world upset... tell the TRUTH !

Dougie

JohnF's picture

Posts: 2836

Date Joined: 07/07/10

Tvg if used correctly will

Mon, 2013-06-17 19:15

Tvg if used correctly will transform your FCV from a mild mannered recreational sounder to a ball tearing semi pro unit.

Only use high tvg in deep water (plus 100m) and turn down gain a LONG way. In 400 m yesterday we were using only 2.1 gain with a 1 kW transducer and getting good fish shows. Only use the minimum colour and clutter erase you can.

Worth playing with.

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

Posts: 303

Date Joined: 01/09/09

Tvg

Mon, 2013-06-17 19:41

 Hhhhmmmm well this defiantly sounds like its worth playing with and I'm in love with the unit already so I can't wait . Thanks John for your tips and there was a deep drop photo I saw somewhere and the gain was unbelievably low but had a good showing... 

Dougie I can't remember exactly as I moved around from shallow ( 40m) to deep (90m) and back to shallow during the day but I want to say shallow ?? Pretty sure it was early in the morning when I was playing with it .. 

Cheers fishfish