This WebSDR (software defined radio) tunes and listens to radio frequencies 0.4-1300 MHz
through most Web browsers on Windows, Linux, Android and iOS devices. No client software is necessary.
The freeware OpenWebRX+ software runs on a Raspberry Pi 4 single board computer with an SDRplay RSP2 software defined radio.
Modes: FM, WFM, AM, LSB, USB, CW, with built-in demodulators for FreeDV, PSK31, FT8, JT65, WSPR, Packet and more.
Location: Amateur Radio Station KP4MD in Citrus Heights, California, near Sacramento.
As the SDRplay RSP2 displays up to 10 MHz of RF spectrum at one time, the WebSDR offers selectable band profiles ordered by increasing frequency. Click on the down arrow in the receiver panel to select one of 16 amateur radio band segments from 80m through 23cm or general coverage segments covering MF, HF, VHF and UHF from 400 kHz through 1300 MHz.
OpenWebRX can accommodate several listeners at a time, but the SDRplay receiver can only tune one band at a time. If the status box in the lower left corner shows "Clients " you alone are listening. If two or more clients are listening you are welcome to tune and listen within that band, but you should not change the band as that will interrupt the others' reception.
Distill:AM filter attenuation on AM broadcast band
Flamingo FM filter attenuation on FM broadcast band
The Radio Frequency Spectrum. This WebSDR receives from 400 kHz through 1300 MHz.