У вашего броузера проблема в совместимости с HTML5
Raw and uncut recording of my vintage Yaesu receiving and transmitting on 80, 40, 20M amateur bands. Transceiver powered up on my workbench in the ham shack. All stations received on a resonant 40m dipole. All transmit testing done into a Bird dummy load. Power output monitored via a Wavenode WN-2 meter.