This is a WebSDR receiver, located in Silec, Poland, QTH KO04SD. Photos available here -- yes, highly experimental design. It is operated by Argon. More information about the WebSDR project can be found on http://www.websdr.org.

Note: for listening to UVB-76 / UZB-76 / МДЖБ / ЖУОЗ / Buzzer, please try the stream: http://streams.printf.cc:8000/buzzer.ogg. It could help saving some bandwidth.

*** Chrome developers decided to disable audio playback on http pages, then Firefox devs followed the lead. "For your safety" apparently, hence the button at the start. Not sure if mobile page is working.

If you find this SDR useful you might consider supporting us Become a Patron!
Special thanks to:
Caladan, Remco, HA621N, BigOS, EC120, 777, dmhz, Martin, RustedDucksDesign

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Since Java version 7u51, Java needs to be enabled separately for each website; see http://websdr.org/java.html for instructions.
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View:
Allow keyboard:
j k ← →: freq down/up (+shift/ctrl/alt faster)
u l c a f: USB, LSB, CW, AM, FM
z Z: center/zoom waterfall
g: enter frequency



Frequency: kHz

Or tune by clicking/dragging/scrollwheel on the frequency scale.
Memories:
Bandwidth:
? kHz @ -6dB; ? kHz @ -60dB.
Or drag the passband edges on the frequency scale.
Waterfall view:
Or use scroll wheel and dragging on waterfall.
Speed:
Size:
View:


[scale]
? dB; peak ? dB;
mute squelch autonotch
Volume:
Gain control: automatic manual
Gain:
Signal strength plot:
Logbook:
Call of station that you hear:
Comments, if any:
Note: time, frequency, your name/call, and DXCC information are added automatically.
View the last 20 lines of the logbook, or the entire logbook (ctrl-click for new tab/window).

This WebSDR is currently being used by ? user(s) simultaneously:      compact view

Chatbox:
This chatbox is intended to discuss the operation of the WebSDR.
The operators of this site disclaim any responsibility for text appearing in this chatbox.



Statistics: