BEACONCLUSTER

www. gooddx.net/

www. dxinfocentre.com/tropo/

www. newsvhf.com/beacons/

www.data.dcc. rsgb.org/

www. vhfdx.net/beacons/

www. vklogger.com/

TEMPERATURE INVERSION

3D picture (use red/green glasses)

TOTAL SOLAR ECLIPSE UMBRA