Palomar Amateur Radio Club STEM Experimentation Lab


📡 OpenWebRX+ Audio and Digital Modes

Audio Mode Selections

  • FM - Narrowband Frequency Modulation
  • WFM - Wideband Frequency Modulation
  • AM - Amplitude Modulation
  • LSB - Lower Sideband (AM)
  • USB - Upper Sideband (AM)
  • CW - Morse Code
  • SAM - Synchronous Amplitude Modulation
  • M17 - New digital voice and data protocol
  • FreeDV - Free Digital Voice

Mode selections on the Receiver Panel
Yellow FM text indicates FM mode is selected.

Digital Mode Selections

  • BPSK-31 - PSK at 31 baud
  • BPSK-63 - PSK at 63 baud
  • FT8 - 4-GFSK
  • FT4 - 4-GFSK
  • JT65 - 65-tone FSK
  • JT9 - 9-FSK
  • WSPR - Weak Signal Propagation Reporter
  • FST4 - 4-GFSK
  • FST4W - 4-GFSK
  • Q65 - 65-tone FSK
  • Packet - PSK at 1200 baud
  • AIS - Automatic Identification System
  • CWDecoder - Morse code decoder
  • RTTY-170 - Teletype 170Hz shift
  • RTTY-140 - Teletype 140Hz shift
  • SSTV - Slow-Scan TV
  • FAX - Facsimile

Drop-down list is enabled when clicking the "DIG" button located on the Receiver Panel below the Audio Modes buttons.