Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: First shots with new unit

  1. #1
    Join Date
    Jun 2010
    Location
    Mechanicsville, VA
    Posts
    427

    Default First shots with new unit

    Finally picked up a new 899ci HD SI and was able to get out Saturday for a little testing/playing, so I figuerd I'd add a litle life to this board and post a few shots. I still need to do a little tweaking, I think I'm getting some sonar reflection from the boat/ jackplate causing a line in the SI screen. The Humviewer software really amplifies it, so I need to play with that a little more also..

    barge

    wing dam across from Osborne

    screenshot from the unit
    </div>

  2. #2
    Join Date
    Mar 2009
    Location
    Blacksburg, VA (for now)
    Posts
    3,057

    Default

    Nice, Andy! You're gonna love the detail and resolution in that new HB.

  3. #3
    Join Date
    Jan 2010
    Posts
    3,186

    Default

    I'm so far behind the times...

  4. #4
    Join Date
    Aug 2011
    Location
    Charlottesville
    Posts
    198

    Default

    The blurry line on both sides comes from aerated water coming off the hull. The distinct lines on the left side are jackplate echos. Your transducer is on the right side of the jackplate.

    You can prevent the jackplate echos by installing a holeshot plate so the sonar pulses will not be reflected by the inside of the left side of the jackplate.
    The alternative to just adding a hotshot plate is to attach the transducer to the center of the bottom of the holeshot plate to get better coverage on both sides.

    Humminbird's Side Imaging covers from the water's surface to past vertical on both sides.

    The recordings are raw data to the adjusted by the software that is processing it-either the unit or Humviewer.

  5. #5
    Join Date
    Aug 2011
    Location
    Charlottesville
    Posts
    198

    Default

    BTW, did you exchange the included Compact SI transducer for the HDSI version that will produce sharper images?

  6. #6
    Join Date
    Jun 2010
    Location
    Mechanicsville, VA
    Posts
    427

    Default

    Thanks Wayne! I'm going to add the holeshot plate this week and had already thought about mounting the xdcr to it. Hopefully as you said it'll eliminate that reflection. I hope the turbulence is a little less in that location also.

    I did not exchange the xdcr for the HDSI one, I'm using the compact version
    </div>

  7. #7
    Join Date
    Aug 2011
    Location
    Charlottesville
    Posts
    198

    Default

    Quote Originally Posted by Stratos976 View Post
    Thanks Wayne! I'm going to add the holeshot plate this week and had already thought about mounting the xdcr to it. Hopefully as you said it'll eliminate that reflection. I hope the turbulence is a little less in that location also.

    I did not exchange the xdcr for the HDSI one, I'm using the compact version
    You will need the wedge to go with that application if you use the Transducer Shield and Saver TM-Csi mount.

    The turbulence will be the same. That is determined by your boat speed and the distance between the transducer and hull bottom----slower=less aerated water.

    A trolling motor mounted SI transducer does not get the aerated water passing over it to be recorded:


  8. #8
    Join Date
    Jun 2010
    Location
    Mechanicsville, VA
    Posts
    427

    Default

    So it's fairly typical to have some aeration on a transom mounted transducer, just an effect of the install. I don't want to try and acheieve results that just aren't typical

    thats a nice image, I assume an example of A TM mounted transducer.
    </div>

  9. #9
    Join Date
    Aug 2011
    Location
    Charlottesville
    Posts
    198

    Default

    Quote Originally Posted by Stratos976 View Post
    So it's fairly typical to have some aeration on a transom mounted transducer, just an effect of the install. I don't want to try and acheieve results that just aren't typical

    thats a nice image, I assume an example of A TM mounted transducer.
    Yep, as long as the boat is moving, you will have water filling in behind the boat where the hull was.

    Yes, that is a TM mounted SI transducer. I use SI on both ends of the boat.

  10. #10
    Join Date
    Aug 2011
    Location
    Charlottesville
    Posts
    198

    Default

    One more tip, you can use 800 kHz if you want a little less coverage, less depth capability, but somewhat better images.

    You can change the Connected Transducer to Hi-Def Sidescan to get the added 800 kHz. It doesn't affect the 455 kHz performance when you choose that in the Imaging Frequency setting.

Page 1 of 2 12 LastLast

Similar Threads

  1. North Anna Unit one refueling
    By TYM2FSH in forum General Board
    Replies: 0
    Last Post: 03-08-2015, 02:25 PM
  2. Lower Unit Mercury 125
    By Catfish Melvin in forum Mercury Outboards
    Replies: 3
    Last Post: 05-29-2013, 07:59 AM
  3. Mercury Parts and lower unit
    By DucknFish in forum VA Outdoors Fishing / Hunting Classifieds
    Replies: 2
    Last Post: 04-09-2013, 09:06 AM
  4. down scan unit any advice.
    By crankem in forum Electronics, Trolling Motors and More...
    Replies: 3
    Last Post: 03-15-2013, 10:00 PM
  5. unit number 2 down for a few days
    By g3mike in forum Lake Anna Fishing Report
    Replies: 4
    Last Post: 12-11-2009, 02:49 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •