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This is a multiband WebSDR, located in Strasbourg JN38un and using some Redpitaya or Airspy receivers.
More information about the WebSDR project can be found on Many thanks to Pieter-Tjerk de Boer, PA3FWM, for his nice tool.
It is operated by RadioClub F4KJI (sysop F4HTB, F4ILW, F6BZG unfortunately SK) and hosted by BATIMA Electronic Company ( ).

  Waiting for connection to chat... Click to hide/show. Filter by band.

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.

View FT8/WSPR/FST4W/APRS live spots decoding... Click to connect and hide/show.

Find automatics spots from F4KJI on PSKREPORTER.INFO for all bands
Find automatics spots from F4KJI on WSPRNET.ORG or
Find automatics spots calibration indication from F4KJI on
See bether map on
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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

Click to start sound!
This WebSDR is currently being used by ? simultaneously:      compact view


Signal? dBm; Peak? dBm;
Noise? dBm; SNR? dB;

mute squelch autonotch automatic gain control
Frequency (in kHz):

Mode Bandwidth: ? kHz @ -6dB;? kHz @ -60dB.
Waterfall view:
Or use scroll wheel and dragging on waterfall.
View: Speed:

Floor level:

Scale level:

Frq position:



Signal strength plot: Select one to hide/show
Load CW decoder" adapted from @ Stephen C Phillips... Click to hide/show.
22-09-2023 20:25:07 UTC Redpitaya 1 : 54.63°C Redpitaya 2 : 56.47°C Server : 52°C Station : 31.12°C
By F4HTB, F6BZG ©F4KJI Copyright 2016-2023 /// WebSDR Copyright 2007-2014, P.T. de Boer,

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