У вашего броузера проблема в совместимости с HTML5
Decoding a fax image on HF. The signal being decoded is the Northwood weather service found on 4.608MHz USB mode. The reciever used was an Elektor software defined receiver. The software used was HDSDR for running the receiver and JVComm 32 for decoding the fax image. Received using an Elektor software defined radio and HDSDR software