Humminbird 987c SI Side Imaging GPS Wide Screen Fishing System -- Pickwick Sauger Fishing

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Subject: Humminbird 987c SI Side Imaging GPS Wide Screen Fishing System
Author: shilohred Author Host/IP: 72-161-65-67.dyn.centurytel.net/ 72.161.65.67	[ Next Thread \| Previous Thread \| Next Message \| Previous Message ] Date Posted: 21:58:39 02/07/06 Tue Here is a few pictures from screen shots on the depthfinder today and let me tell you its great. Pete [ Next Thread \| Previous Thread \| Next Message \| Previous Message ]

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Re: Humminbird 987c SI Side Imaging GPS Wide Screen Fishing System

Author:
fishboy73
Author Host/IP: NoHost/68.77.109.132
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Date Posted: 18:52:33 02/08/06 Wed

Most of the picture's on the web do look good, but a few of them are a little difficult to interpret. Do you personally feel like you can identify fish, creek beds, trees, brush piles, rocks, road beds, and other underwater structure with ease or is there a learning curve to understanding the screen? Does the image degrade with speed. I think you touched on this earlier, but practically, how fast can you go? thanks.

[> [> Subject: Re: Humminbird 987c SI Side Imaging GPS Wide Screen Fishing System

Author:
shilohred
Author Host/IP: 72-161-66-106.dyn.centurytel.net/72.161.66.106
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Date Posted: 19:27:22 02/08/06 Wed

The pictures are my fault. There not as good as what came off the screen.
Also yesterday was the first time to use one. And it was easy to figure out what suff is. bolders looked like big rocks. Also it show the creek creek channels and trees brush piles and even road beds. The dark places are the shaddow of what your seeing. just like eveything on earth throws a shadow also does the stuff under water.
I'm sure it will work better after a few more trips out . And playing with the settings.
Speed does kill. On sidescan from 2 MPh to around 6 or 7 MPh is about it. but then again you have an ideal where your going to look .
Also I covered 3 1/2 miles yesterday in around an hour.
Best i could get was 8 MPh and you started droping lines all over the screen. But then on the color depthfinder as fast as you can that is if you have it set up right.

Now as for seeing fish If I can that will be a bonus. As its for finding the cover . But lots of people have told me that they find lots of schools of fish with it. Fish will show as whtie spots for the most. But I bet if its a big fish it will be show as a fish.

Hope to run around savannah Tn river bridge and see all the steel from the old bridge laying there. Back around 1980 they blew the old metal bridge up and let it fall in the river .
Pete

[> [> [> Subject: Re: Humminbird 987c SI Side Imaging GPS Wide Screen Fishing System

Author:
fishboy73
Author Host/IP: rad-159-209.rad.msu.edu/35.8.159.209
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Date Posted: 14:29:06 02/11/06 Sat

Based on some of the images I have seen, the hummingbird 987 seems to be better for seeing things that "stick up" from the bottom (boulders, shipwrecks, tree stumps ect) as say things that "stick down" into the bottom (holes, creek channels, road beds, ect). Things that stick up would make an accoustic shadow on the sonar screen. Things that stick down into the bottom would not make a shadow and based on the angle may not receive the sonar beam at all. Still, if a hole received the sonar beam, than it would take longer for the signal to return to the transducer so the transducer should know a hole is there. I guess my question is, how well does the unit deal with identifying and displaying depressions in the bottom? Have you found this to be an issue? Also, what affect does bottom composition have on the image? Again, thanks for your help.

[> [> [> [> Subject: Re: Humminbird 987c SI Side Imaging GPS Wide Screen Fishing System

Author:
shilohred
Author Host/IP: 72-161-65-203.dyn.centurytel.net/72.161.65.203
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Date Posted: 20:36:40 02/15/06 Wed

Well I replyed to this the other night. but lost it some how.
I have a few pictures I will post when I get them worked out and sized.
You can see holes and stuff in the bottom of the river. Also today I got to see a few big balls of bait fish . And the big fish are around the bait fish. cool looking.
Also shooting under a dock the frount of the dock shows up in the picture and the spud poles also.
Then theres a big ball of bait showing under one side of the Dock, And then the shaddow shows.
Pete