Olfs
05-21-2000, 03:15 PM
I use a Pinpoint 7520 and 7500 graph and it seems like I have been getting much more interference than when I was first running it in March. I have to turn the sesetivity down to about 40 percent on both, the distortion is differnt than the usual it looks almost more like fish arches up high when the sensentivity is turned up and it all is in the upper half of the water column. I was wondering if this could be alge or something because the inland lakes here in Michigan warmed up pretty fast and then cooled down cosiderably. Any input would be appreciated.