View Full Version : Scanning Sonar

Ian McColgin
10-17-2011, 11:23 AM
Iím finally going to make sure I have a working depth sounder and a log. While a quantum leap in cost, I am thinking of the Interphase Color Twinscope SE, seemingly much improved after 2009. This is the cheapest and only scanning unit I can even consider. Anyone got experience with it?

10-17-2011, 06:22 PM
Not a bit. My depthsounder still goes around and flashes near the depth. But I do think those newfangled ones are cool.

10-17-2011, 06:38 PM
I can't speak to the newer, "much improved" version, but I have quite a bit of experience with one from about 2005 or so. To be honest, it never worked very well for us in this particular install. I can not say that it was a fault with the unit, but no matter how much I futzed with it, including a few grounding schemes and noise filter applications, it always had a lot of noise and it was very hard to discern a hazard from the background noise. We did four trips up and back the inside passage and fished it for a few seasons, and as much as we'd try to identify what it was telling us, we never got to a point where we trusted it. There were two other depth instruments on board, and although they weren't side scan, we had much more confidence in the data we got from them.

In theory, these would be a wonderful tool for poking into tight spots and watching for trouble, so I do have hope for them. Good luck.

10-17-2011, 06:49 PM

Ben Ellison (the guy behind Panbo) is right on top of marine electronics and very accessible: http://www.panbo.com/about.html

10-17-2011, 07:02 PM
I have been told the Hummingbird depthsounder/fishfinders are good and at under $200 for a monochrome the price is right as well.

10-17-2011, 07:39 PM
Ummm, I just run aground myself (the cheap version).