Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
zachp

Humminbird fish graphability

Recommended Posts

zachp

I have a humminbird 797 and it doesn't graph fish very well if at all...I have a lowrance 334 on the bow and it shows almost perfect arcs that make distinguishing fish and rocks and weeds very easy. I ran a test by watching both units simultaneously at the same settings, the lowrance graphed fish with perfect arcs 6" to 2 feet off bottom, it showed a school of baitfish with small arcs by it which were smaller perch feeding, the humminbird was showing small straight lines which didn't look anything like fish, it looked more like a small clump of weeds, and it didn't graph the school of baitfish that the lowrance did either.

Any thoughts? I have the sensitivity all the way up and chart speed up around 80%. It seems that even though the sensitivity is all the way it could still go up more.

The lowrance unit appears to be much better at showing bottom definition and differentiating between structure, as well as the fish graphing thing.

Share this post


Link to post
Share on other sites
hitthebricks

Zach, I have the 979 and find that Huminbirds displays what is there alot different than my lowrance unit. I turned on the fish id to help with the learning curve and also sort through fish and random bottom debris. Their also is a forum on yahoo that is great for answering any questions you have about the Huminbird SI products. HTB

Share this post


Link to post
Share on other sites
Try Too Fish

I am not familiar with your unit, but I have a 997 and in my opinion and experience with using Lowrance for years I think my Hummingbird is better! I wonder if there is something wrong with your unit or transducer? Or maybe the transducer need to be adjusted. Transducer angle does affect fish arc display!

Maybe you should call Hummingbird customer service and see about sending it in. Especially if under warranty!

Good Luck!

Share this post


Link to post
Share on other sites
zachp

The transducer is mounted almost perfectly level on the transom, i checked it while snorkeling this summer. I might check with humminbird about sending it in, it seems to show very little of what is actually down there, it looks like the sensitivity isn't tuned right, with it turned all the way up i get no clutter, on the lowrance unit i can't go above 90% or i get way too much clutter. What are you humminbird users setting your sensitivity at? i know it varies from lake to lake, but i should be picking up more with it turned all the way up.

Share this post


Link to post
Share on other sites
Hookmaster

I've had a 777c2 for a little over a year and it marks arches fine when boat is moving. I think the Humminbird's have better sonar than Lowrance. Does the 797 have the same mount as others? Maybe you can try a different head unit to see if it is the head or the transducer.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  



  • Posts

    • leech~~
      I remember that video, pretty darn cool! 
    • leech~~
      Man you can really see the standards of this site of have dropped.  A few years ago we were talking over $80-$100 Thorne Brothers Custom made Ice Rods.  Now a $9.99 dollar rod is the talk for the forum!  We need to bring back the Rich folks!
    • slammer
      I think we should start a Go fund me for Cropduster to take his plane up and give us some pics. lol  He did it a few years ago but not lately.  Its pretty cool veiws from above when ice is forming.  I wonder if he is still lurking around here?
    • EyeChsr
      was out tonight, 6-8 in out from the dnr landing. wheelers and a couple perms out. still open water out in front of Peters resort on the south shore. It starts out a couple hundred yards from shore and runs to the north- northwest for a long ways. some of the spots that were open earlier this week have skimmed, be careful out there if you see different looking ice stop and check!!
    • JIvers
      Thanks for the report--about what I figured, which is why I stayed down here in Iowa this weekend. I am fairly optimistic about getting on the ice in southeast or south central Minnesota next weekend; whether I am on a lake around Faribault or Waseca, or one of my old backwater haunts on the Mississippi remains to be seen. Maybe Clear Lake, Iowa. Whatever I do I will post my results.
    • JerkinLips
      9-11am was best time both days.
    • littlebear
      If you are willing to go a little further into Canada, I would recommend Hollinshead Resort, a few hours north of Thunder Bay.  The resort is the only one on the lake, and in June offers excellent Walleye Fishing, as well as some dandy Northern Pike.  It's somewhere you can drive to as well. 
    • monstermoose78
      Caught 20-23 gills and 6 crappies. Fun day on the 10 inches of ice. The whole lake was close to the same where I cut all the holes out and around
    • Wanderer
      I’m still seeing very random thicknesses all over.  In the past few days I’ve been from St. Cloud to Winnie and have seen vehicles on the ice and open water on the same lake. I’m in Little Falls.  Tonight I checked 2 lakes NW of town.  Both had people fishing.  One looked to be safe for wheeler travel and the other, very near it, still had an open lead and you could see the difference between the first sheet of ice and the second. I hope it doesn’t get covered with snow anytime soon so we can still tell where the changes are. Be safe. Bring floatation and picks.  And don’t drive yet! Ruh ro....
    • Bigfatbert
        Nice fish , great pics ,, what times of the day were best for you ?