blueroomelectronics
Well-Known Member
I'm not aware of 5MHz bats either, they can go as high as 150KHz.
https://hypertextbook.com/facts/1998/JuanCancel.shtml
I wonder if the OP can fine tune quartz crystals with sandpaper. A 32KHz watch crystal could become a 5MHz one.
https://hypertextbook.com/facts/1998/JuanCancel.shtml
I wonder if the OP can fine tune quartz crystals with sandpaper. A 32KHz watch crystal could become a 5MHz one.