Receive
Radio control: none (VOX)
Waterfall
Audio frequency increases from left to right. The newest row is at the top, with a new row every 0.16 s. Brighter means a stronger signal. Horizontal lines mark the start of each 15 s slot. Each decoded signal is labelled with its message, and the red mark on the top edge is your transmit frequency.
Scroll or pinch to zoom the frequency axis; Alt+scroll (Option+scroll on a Mac) zooms the time axis. Drag sideways to move along the frequency axis, or drag up to see earlier slots. Double-click to reset the view.
Band activity
dB: signal-to-noise ratio (approximate). DT: time offset of the signal in seconds, positive means late. Freq: audio frequency of the signal's lowest tone, in Hz.
| UTC | dB | DT | Freq | Message |
|---|
No messages decoded yet. Messages appear at the end of each 15 s slot.
Click or tap a message to select the station that sent it, then press Answer; or double-click it to answer that station straight away.
Transmit
Not in a QSO
Log
| UTC | Call | Grid | Sent | Rcvd | Dial frequency |
|---|
No QSOs yet. Completed QSOs are listed here.
The log is cleared when you close or reload the page.
My station
Messages to your callsign are marked "To you". Your call and grid are saved in this browser only.