Humminbird Side Imaging Forums
General => General Discussion => Topic started by: capttater on August 29, 2014, 12:12:02 PM
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Hey guys, I was one of the very early (first month) users of the sideimaging with the 987c. I left it with my last boat I sold and the new one had Raymarine but I bought a 998c SI to put on it.
I just can't get the same picture quality. I know the 987c was a 1KW transducer and they added DI over time and such. I could see clear bottom out to 2000' of water.
The 998c I turned off all the sharpening and such and go the SI view good but the down imaging is a mess and color view is like made from legos.
OLD
(http://i6.photobucket.com/albums/y207/khannah2/SideScan/Barge.jpg) (http://s6.photobucket.com/user/khannah2/media/SideScan/Barge.jpg.html)
(http://i6.photobucket.com/albums/y207/khannah2/SideScan/ledge.jpg) (http://s6.photobucket.com/user/khannah2/media/SideScan/ledge.jpg.html)
(http://i6.photobucket.com/albums/y207/khannah2/SideScan/hump.jpg) (http://s6.photobucket.com/user/khannah2/media/SideScan/hump.jpg.html)
(http://i6.photobucket.com/albums/y207/khannah2/SideScan/BAITCLOUD.jpg) (http://s6.photobucket.com/user/khannah2/media/SideScan/BAITCLOUD.jpg.html)
(http://i6.photobucket.com/albums/y207/khannah2/SideScan/BoatinInlet.jpg) (http://s6.photobucket.com/user/khannah2/media/SideScan/BoatinInlet.jpg.html)
This is the new one.. BEST I can get.. I'll go pull my SD card but it's just sometimes good, sometimes horrible. I try all sorts of frequency for side and down and my raymarine shows stuff the humminbird never sees. Used to be the other way.
(http://i6.photobucket.com/albums/y207/khannah2/SideScan/20140425_193914.jpg) (http://s6.photobucket.com/user/khannah2/media/SideScan/20140425_193914.jpg.html)
of course about 600' is all I can get but I understand the lower power.
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Welcome to the Humminbird Side Imaging Forums capttater.
On the 987 unit were you viewing the 200kHz sonar, the 50kHz sonar or a combination of both?
What 2D frequency 9or frequencies) are you using on the 998 unit?
From the cell phone picture you posted, it looks like there is a lot of interference in the 2D sonar. Was the Raymarine unit on at the same time?
Does the 2D sonar always show those vertical lines?
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I've tried it with the raymarine off and on.. The raymarine has a big 2kw transducer but it doesn't seem to interfere. The only thing near it electrically is a VHF which is about 2' away as well. The HB is in the electronics box while the raymarine down below. The do share a cable run but to the transducers but again off or on with the raymarine makes no difference.