Just a question
Submitted by mr_meks on Mon, 2012-10-29 09:59
This photo is from Luke R's for sale post. My question is, that sustantial school showing on the lowrance, why does it look much less impressive on the furuno? I would have figured the furuno being on low freq / wider cone, should have the fish in the beam for longer and would show more streaks that the hds has. Is it because the page advance is halved?
Starbug
Posts: 563
Date Joined: 27/08/09
The lowrance is on 200khz,
The lowrance is on 200khz, the Furuno is on 50khz. You will get better resoution at the higher frequency.
mr_meks
Posts: 189
Date Joined: 11/02/11
So a FCV-585 wont even show a
So a FCV-585 wont even show a good school of sambos(im guessing) 80m down on low frequency?
I'm not trying to knock furuno, just trying to figure out whats going on in this photo.
southcity104
Posts: 1659
Date Joined: 27/01/09
depends on gain settings
...
"Its a life style job"
Georgejungle
Posts: 354
Date Joined: 25/03/09
Personally i think the furuno
Personally i think the furuno is showing a better picture.It is not just a big lit up mass but it is detecting singular fish and showing them up individually. As has been said turn the gain up to 10 and the furuno will be a red mass .It will be a red mass of fuck all though
mr_meks
Posts: 189
Date Joined: 11/02/11
OK I guess the gain is just
OK I guess the gain is just lower than what I would use.
*It is not just a big lit up mass but it is detecting singular fish and showing them up individually* < That doesn't really make sense to me because as I understand it if a fish with a strong echo stays in the beam swimming up and down for 15 seconds there will be a line going across the screen up and down 15 seconds long, not a single blob. (unless you're running down scan imaging).
Georgejungle
Posts: 354
Date Joined: 25/03/09
If you can keep a fish that
If you can keep a fish that is swimming (obviously) under your moving boats sonar image for 15 seconds your doing better than most . Less time reading and more time looking at the sounder is the only way to interpret sounder screens. They all read different from model to model and brand to brand . Position of transducers and if they are wetfaced or shoot through also affect readings. Swell ,sea state ,wind, current.... need i go on, it truely is an art to be mastered.
Rob H
Posts: 5745
Date Joined: 18/01/12
george is right there-after
george is right there-after many years of commercial/charter fishing there is still much to learn about sounders for me.
One thing many dont understand is that looking at a single image of a sounder picture is EXACTLY the same as looking at a single frame of a movie and trying to tell the the whole story plot.
There are so many variables between 2 sounders side by side that a meaningful comparison is impossible unless maybe operated by a person who has PRACTICAL experience with both brands.
Personally to me, the Furuno picture looks more interesting but then I have used Furuno almost exclusively, plus use bottom lock alot especially up north.
Give a man a mask, and he'll show you his true face...
The older you get the more you realize that no one has a f++king clue what they're doing.
Everyone's just winging it.