clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=149
clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=148
clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=145
clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=134
clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=163
clicktag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=143
  New Posts New Posts RSS Feed - Lowrance Downscan (DSi) Sounder Shots
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Lowrance Downscan (DSi) Sounder Shots

 Post Reply Post Reply
Author
flyfisher View Drop Down
Titanium
Titanium
Avatar

Joined: 06 Apr 2006
Location: Wellington
Status: Offline
Points: 4563
Post Options Post Options   Thanks (0) Thanks(0)   Quote flyfisher Quote  Post ReplyReply Direct Link To This Post Topic: Lowrance Downscan (DSi) Sounder Shots
    Posted: 07 Jul 2012 at 7:45pm
Installed this last night (just the el-cheapo Elite 5x DSi) to see how it would go locally, despite looking very cheaply made, it performed well. I was under the impression these we're moreso for finding structure and NOT fish, but it showed fish very well, especially Tarakihi which really surprised me.

Here is a Wellington harbour wreck called the South Sea, it's a minesweeper than was rammed by the interisland ferry in 1942 and is intact apart from the superstructure which was removed during salvage atempts - you can clearly make out the hull. and where she's lying.

The South Sea:



Bow below, lying on it's side - loads of sediment to the hull sides.



The stern section from above.



The complete boat, shows alongside a traditional 2D sonar which shows little info on what it is.



Bait schooling over the rear of the hull. You can see how much sediment and debris has built up to the sides here due to tidal effects.



This is a kelp forest, amazing detail of individual stems and bases.



This is schooling Tarakihi.



The results from above!...



Great wee bit of kit and works very well next to traditional sonar, it showed fish more as actual size dots and lines not so much arches, also picked up thermoclines really well. Can't wait to get out and play with it again!









Back to Top
stilltrying View Drop Down
Silver
Silver
Avatar

Joined: 07 Feb 2011
Status: Offline
Points: 215
Post Options Post Options   Thanks (0) Thanks(0)   Quote stilltrying Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jul 2012 at 8:24pm
Cry i want one too      im looking at upgrading my old finder to a dsi the shots looks good can one adjust the pic quality or is standerd (dont know much about finders) and was it easy to install
KING SMURFIX
Back to Top
flyfisher View Drop Down
Titanium
Titanium
Avatar

Joined: 06 Apr 2006
Location: Wellington
Status: Offline
Points: 4563
Post Options Post Options   Thanks (0) Thanks(0)   Quote flyfisher Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jul 2012 at 8:49pm
Peace of cake to install. There is very limited options on it, it does not even do traditional 2D sonar only the 3D stuff, there isn't even a gain adjustment! Pixel count is pretty good at 480 x 480. I'd like to try side scan, but for my fishing I thing this basic structure scan will be great - certainly won't replace my main unit, but looks to be invaluable running alongside it. I saw stuff today I never knew existed!

The small vertical specs you see are my other sounder running alongside and causing interference, much cleaner when turned off. I picked it up for $700, which is pretty good, I think Marine deals has them for $999?
Back to Top
stilltrying View Drop Down
Silver
Silver
Avatar

Joined: 07 Feb 2011
Status: Offline
Points: 215
Post Options Post Options   Thanks (0) Thanks(0)   Quote stilltrying Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jul 2012 at 9:28pm
what do you think of the hummingbird 597 di unit it cost more but it a combo unit do you get the water temp as well
KING SMURFIX
Back to Top
flyfisher View Drop Down
Titanium
Titanium
Avatar

Joined: 06 Apr 2006
Location: Wellington
Status: Offline
Points: 4563
Post Options Post Options   Thanks (0) Thanks(0)   Quote flyfisher Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jul 2012 at 9:39pm
Looks good on paper, it has a higher res screen at 640 x 480 pixels and more power but smaller screen. The Lowrance DSi does do water temp. Humminbird's have the most problematic transducers of any fish finder brand, that's one thing that put's me off them, mind you, Lowrance aint much better!
Back to Top
Mullins View Drop Down
Titanium
Titanium


Joined: 19 Aug 2004
Status: Offline
Points: 5553
Post Options Post Options   Thanks (0) Thanks(0)   Quote Mullins Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jul 2012 at 11:15pm
Is it limited to quite shallow water Flyfisher? Guess it must be with such high frequency.
Back to Top
flyfisher View Drop Down
Titanium
Titanium
Avatar

Joined: 06 Apr 2006
Location: Wellington
Status: Offline
Points: 4563
Post Options Post Options   Thanks (0) Thanks(0)   Quote flyfisher Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jul 2012 at 11:59pm
Yeah limited to about 75m Mullins, had no issues in up to 30m today. Have you dived the South Sea out of interest? Be a walk in the park for you, would love to see some underwater pics of it, was thinking of lowering the GoPro down on the burley bucket. Apparently a very intact hull dive.
Back to Top
Davo View Drop Down
Platinum
Platinum
Avatar

Joined: 23 Jan 2003
Status: Offline
Points: 2938
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davo Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2012 at 5:59am
Cool pix FF. i tried using it on holmes rock yesterday but it just didnt have the grunt to cope with that depth.
Back to Top
flyfisher View Drop Down
Titanium
Titanium
Avatar

Joined: 06 Apr 2006
Location: Wellington
Status: Offline
Points: 4563
Post Options Post Options   Thanks (0) Thanks(0)   Quote flyfisher Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2012 at 2:07pm
Yeah, even with that beast HDS10 of yours, still limited to the 75m thing, such is the limits of ultra-high frequency Dave. I'm thinking of an HDS8 to run alongside the 750's already... never been a fan of Lowrance but yesterday changed my mind somewhat, I can see structure scan being very important for under 50m which is 80% of my fishing.

IMO nothing holds a candle to Garmin's charting as yet though, the bathmetry contour info is simply unbeatable and far more valuable than Navionics charting. Anyone wanna buy a new, used once Elite 5x DSI?!
Back to Top
kaveman View Drop Down
Forum Sponsor
Forum Sponsor
Avatar

Joined: 18 Oct 2004
Location: Whangamata
Status: Offline
Points: 7182
Post Options Post Options   Thanks (0) Thanks(0)   Quote kaveman Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2012 at 2:55pm
Andrew, great writeups on sounders etcThumbs Up

have you seen or played with a "chirp" unit yet? These are supposed to be "out of this world" compared to conventional sounders.
www.kavemantackle.co.nz
Back to Top
Catchelot View Drop Down
Titanium
Titanium
Avatar

Joined: 07 Oct 2008
Status: Offline
Points: 14561
Post Options Post Options   Thanks (0) Thanks(0)   Quote Catchelot Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2012 at 3:13pm
Good stuff what freq is the downscan run on 455khz? and any pics of the trasducer setup?
Ka pu te ruha, Ka hao te rangatahi
Back to Top
flyfisher View Drop Down
Titanium
Titanium
Avatar

Joined: 06 Apr 2006
Location: Wellington
Status: Offline
Points: 4563
Post Options Post Options   Thanks (0) Thanks(0)   Quote flyfisher Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2012 at 3:23pm
Have not played with Chip yet Kaveman, but it's surely the way forward, have a mate in aussie with one hooked up to his Garmin who was getting a good bottom reading in well over 1000m incl, fish sign, even a 2kw tdx would likely struggle at that depth!

They run at 800khz and 455khz Catchelot, will post a pic later, the transducer of the structure scan is a very small cylinder, about the size of a Vivid Marker, very streamlined and kicks up no spray despite a deep mounting depth, looks flimsy as hell though so longevity is doubtable?! 

One really interesting thing I found yesterday as that this unit would  not pick up the burley bucket at all! It had no issue with fish under it, but could not pick up the 3kg lead and pot weight hanging straight down 3m off the bottom, sometimes on 455khz it would show as the thinnest hairline horizontal mark (you can JUST make it out in the bottom pic at 11.5m down). This does not concern me as who needs to see it - only the fish around it. Never seen this before.

I found yesterday that under 15m the 800khz gave best results, over that - the 455khz had better detail and penetration. Here's another pic of individual fish from yesterday.





Back to Top
blackboat View Drop Down
Titanium
Titanium
Avatar

Joined: 30 Sep 2008
Location: nelson
Status: Offline
Points: 3219
Post Options Post Options   Thanks (0) Thanks(0)   Quote blackboat Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2012 at 3:30pm
this is my mates unit in action ,have seen it work in 70mtrs sweet as ,i been a furuno person myself but just now added the hds10 gen2 and i find the sonar picture and detail outstanding when on the hunt for fish


Back to Top
NZTurtle View Drop Down
Platinum
Platinum
Avatar

Joined: 19 Aug 2006
Location: Whangarei
Status: Offline
Points: 2746
Post Options Post Options   Thanks (0) Thanks(0)   Quote NZTurtle Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2012 at 5:23pm
Was getting the bottom @ 120m today on down scan/HDS V1 @ 455khz. Not great but was good to see. Did not see fish with it though. Was not getting anything on sidescan.
For under 50m on the bottom and finding schools out to your side, the sidescan is the ducks nuts.
Back to Top
Davo View Drop Down
Platinum
Platinum
Avatar

Joined: 23 Jan 2003
Status: Offline
Points: 2938
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davo Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2012 at 6:13pm
Yeah anything under 50 m and the ss delivers the goods in terms of detail. I can see single fish easy - made a big difference for me targetting snaps in the harbour. I may be wrong here but i think the hds units use a type of chirp system. I recall reading some techo guys talkin about it in the hull truth (i think). They even explained how it all works...pretty incredible stuff really.
Back to Top
flyfisher View Drop Down
Titanium
Titanium
Avatar

Joined: 06 Apr 2006
Location: Wellington
Status: Offline
Points: 4563
Post Options Post Options   Thanks (0) Thanks(0)   Quote flyfisher Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jul 2012 at 12:26am
This is the piddly little transducer Catchelot, the sidescan models have a long flat protrusion. This thing is tiny!



Back to Top
Busted! View Drop Down
Platinum
Platinum


Joined: 15 Nov 2008
Status: Offline
Points: 2421
Post Options Post Options   Thanks (0) Thanks(0)   Quote Busted! Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jul 2012 at 7:38am
If you seperated this one either side of the hull would it reduce interference from the sound generating cycle?
Back to Top
flyfisher View Drop Down
Titanium
Titanium
Avatar

Joined: 06 Apr 2006
Location: Wellington
Status: Offline
Points: 4563
Post Options Post Options   Thanks (0) Thanks(0)   Quote flyfisher Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jul 2012 at 8:16am
Will probably try that, but as the Garmin has different frequencies 200 / 50 kHz and the Lowrance 455 / 800khz they should have no effect on each other while in use, it's pretty minor interference. 
Back to Top
Busted! View Drop Down
Platinum
Platinum


Joined: 15 Nov 2008
Status: Offline
Points: 2421
Post Options Post Options   Thanks (0) Thanks(0)   Quote Busted! Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jul 2012 at 9:35am
Yeah, been through that one before and found that greater seperation between the ducers fixed it.  Dunno why, as I thought the same - different frequencies should not have an effect on the other but for some reason it did....
Back to Top
Jet_ski_fisher View Drop Down
Titanium
Titanium
Avatar

Joined: 08 Dec 2008
Location: Whakatane
Status: Offline
Points: 0
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jet_ski_fisher Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jul 2012 at 3:42pm
Mount it to the left side and you will be away laughing 
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.477 seconds.
clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=86
clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=13
clicktag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=266
clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=219
clicktag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=283
clickTag=http://www.fishing.net.nz/x/modules/redirect.cfm?bid=251
All Information © 2014 The Fishing Website | Terms & Conditions