Posts: 2752
Location: Mauston, Wisconsin | Sure its just a bible camp.....
http://www.lakeellencamp.com/lazy_e_ranch.html
There's a home on SE end that looks like it could have horses, e.g., using google Earth.
There's also a good chance its on private property...lots of horse lovers out there, even in the Yooper. Also electric dog fences, etc. I'm not a DNR fishery survey team member, so I wouldn't expect them to be experts in electromagnetic or radio frequency interference. Your sonar uses 50kHz to +200kHz. Depending on the settings and also depending on the harmonics involved, you are getting periodic pings from an interference source. Just for grins try a AM radio and see if you can hear the clicking. Just pretend you are in the Navy submarine service and the enemy's sonar is pinging you, your challenge is to identify the source and get rid of it!
You can easily see submerged steel structures with Humminbirds, its not a big lump of iron or copper ore. If it was, it wouldn't be periodic. Try changing the Bird transducer frequency settings also.
But, you may have stumbled into the Twilight Zone also, because your screenshot GPS coords put you on Lake Lenexa in Kansas. Did you see Toto too?
Have fun!
Al
|
