This is the 800kHz DownScan screenshot.
I know I'm becoming a bit of a pain CDK, but I find this all very interesting. Please have a look at this screenshot of the same tree, taken at...
Thanks for the reply CDK. Your posts certainly make one think.
Here is a screenshot taken from my HDS with a 200kHz standard skimmer...
And you get a 'cleaner' flow under the transducer.
A very interesting read indeed. What is your take on Broadband Sonar?