Note: you need both Java and JavaScript enabled for this page to work properly. If you don't hear anything, probably Java is disabled or its version is too old (i.e., pre-1.4.2).
It seems you are using a mobile device; click here to switch to the mobile version of this site.
It seems Java is not installed or disabled on your computer. You need to install and/or enable it for this website to work properly.
Since Java version 7u51, Java needs to be enabled separately for each website; see http://websdr.org/java.html for instructions.
Your browser does not seem to support HTML5 WebAudio; please try a recent version of Firefox, Chrome, Opera or Safari; or switch to Java.
Audio problems: If you are using Firefox go to "Edit" - "Privacy and Security" - "Permissions" - "Autoplay" - "Settings" and chage settings in "Default for all websites". If there is still problem with audio - please check other browser.
Nothing on waterfall - flush browser cache and delete cookies from domain so8oo.net
Pusto na waterfallu? - wyczyść pamięć podręczną przeglądarki i usuń ciasteczka z domeny so8oo.net
Something is not working? Send me a short message!

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

Display Controls:
rate: size: view:


[scale]
? dB; peak ? dB;
mute squelch

DSP New!

Notch1
Notch2
High Boost
Noise reduction
Volume:

Signal strength plot:
Bandwidth:
? kHz @ -6dB; ? kHz @ -60dB.
Or drag the passband edges on the frequency scale.
PassBand Tuning (PBT):

Frequency: kHz

Or tune by clicking/dragging/scrollwheel on the frequency scale.
Weather & Number stations:
Memories:
Image license and source: https://commons.wikimedia.org/wiki/File:Large_World_Topo_Map_2.png, greyline generated with linux app sunclock
Move mouse over image - it will refresh map. Yellow star points WebSDR QTH - KN09vw - southeastern Poland.
Waterfall view:
Or use scroll wheel and dragging on waterfall.
Speed:
Size:
View:
This WebSDR is currently being used by ? user(s) simultaneously:      compact view
Statistics: