Line of sight

I only had one QSO with speech and that was on a line-of-sight path. This was over about 11km to Bernie G4HJW/P. This was using homemade optical gear and optics. Both of us were /P.

With Fresnel lenses and higher power LEDs much greater distances should be possible..

The photo shows the homemade gear employed based on PVC drain pipes and Poundland magnifying glasses.

Simple AM TX