Quote Originally Posted by ctf58 View Post
Thanks rnvinc,

I saw your photos from an earlier post after callen pointed me in the right direction. Are the pictures of the same thing, just one if SI and the other DI? Also I see that the SI at 800kHz seems brighter.

Would you recommend running at 433 or 800 on KY most of the time. I'm new to decent electronics. I just replaced the 3" humminbird that was the fishfinder on the boat when I got it with 2 Elite7's. One has CHIRP. I'm trying to learn as best I can but I only get to go fishing 2-5 times a year so on the water time is limited.
Yes the top 2 snapshots are SI (left image at 455kHz-right image at 800kHz)...

The bottom snapshot is DI of the same structure....

Your idea to scan a known structure is the best tool for learning how different settings in your unit affect the image...(the metal pole in the paddleboat area makes it very easy to scan the same track over the structure each time)...

In most situations...(in SI units and DI units)...:

*The 455kHz will be brighter....but fuzzier...
*The 800kHz will be darker .....but clearer...

Rickie