When I configure the unit to use CHIRP 800Khz on the side scan, the right side of the image is dark, and that does not change for any water I am in, including turning around 180 degrees and back tracking over (thus flipping the bottom around). It seems like 455Khz is the default, but the unit does allow me to use 800Khz on the GT52hw for side scan. So I guess my question is, what could be causing this? SideVu with 455K seems to be work fine, DownVu with either 455 or 800 seems fine, etc. So I am hoping someone will tell me this is a software issue. I am in a kayak, the transducer is at least a few inches below the hull of the kayak, but the kayak is indeed to the right of the transducer, meaning transducer is mounted on the left side of the kayak.
So software issue, or any chance I have a defective GT52HW? I have babied this gear so nothing has been 'whacked'.
Also, even though I see the DownVu or SideVu to 800K, upon next power boot up, the unit will have have set back to 455K. Is this normal, or might this be a software issue? I'm not aware of any other software settings that default back to something other than what I have selected, upon a new power boot up.
Attached are two images of SideVU, one at 455K and the other at 800K.
10MAY20_1225_00.bmp
10MAY20_1247_00.bmp