Here are few web based software which I use for Amateur Radio.
QRZ help to search call-sign and info
SUWS Farnham WebSDR
APRS Online APRS Map
DXSummit DX spotting
AMSAT Amateur Radio Satellite
adsbexchange ADS-B aircraft tracker
QRZ help to search call-sign and info
SUWS Farnham WebSDR
APRS Online APRS Map
DXSummit DX spotting
AMSAT Amateur Radio Satellite
adsbexchange ADS-B aircraft tracker