This is a WebSDR receiver, located in Athens, GR It is operated by SV1BTL, e-mail: sv1btl@otenet.gr
The receiver is Airspy HF Discovery. Antenna: Multiband End Fed Half Wave Antenna MyAntennas EFHW-8010, Preselector by SV1AFN. Precious help from SV2AMK. (read the tutorial)
More information about the WebSDR project can be found on http://www.websdr.org.
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.

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
b: change band


This SV1BTL WebSDR  is currently being used by ? user(s) simultaneously:      Mobile Version           

Frequency:   kHz.    Mode: ?
Please enter the frequency above.
Or tune by clicking/dragging/scrollwheel on the frequency scale.


Admin
Ham. Bands
Other non Ham Bands
Radio Bands

Switch to another websdr server
Memories:
Memories are stored as cookies on your computer, not on the server.
Bandwidth:
? kHz @ -6dB; ? kHz @ -60dB.

IF filter shift:
Or drag the passband edges on the frequency scale.
Waterfall view:
Or use scroll wheel and dragging on waterfall.
Speed':
Sizes:  
View:  

[scale]
[scale]
   S? dBm    Peak ? dBm

Mute Squelch High Boost
Autonotch Notch1 Notch2
Volume:
 DSP NR: More info here
Audio buffering:

Gain control: AGC on Manual
Gain:

Signal strength plot:



Logbook:

Call of station that you hear:


Comments:
Note: time, frequency, your name/call,
and DXCC information are added automatically.
View the last 20 lines of the logbook,
or the entire logbook.


Callsign lookup by     qrz.com:    
Callsign lookup by qrzcq.com:    
QTH locator by QTH-Locator:   


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: