the icast show looked like a blast, some of my facebook friends posted pics and i wish it was open to the public. I noticed some of the pics were 200 khz and some were 455, and looked pretty good to me, does it have the 800khz also
Year before last I was in Orlando for a different show and the iCast was going on. They let me sneak in for a few minutes... it was amazing what little I got to see.
200kHz is one of the 2D Sonar Frequencies. You can use 200kHz, 83 kHz or Combo for 2D Sonar. For Imaging you can use 455khz or 800kHz. 800kHz is smaller coverage area for Side Imaging. 360 Imaging is 455kHz only.