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WebSDR

12

A WebSDR is a Software-Defined Radio receiver connected to the internet, allowing many listeners to listen and tune it simultaneously. SDR technology makes it possible that all listeners tune independently, and thus listen to different signals; this is in contrast to the many classical receivers that are already available via the internet.

More background information is available here. Questions and comments can be sent to PA3FWM, the author of the WebSDR software and maintainer of this site.

WebSDR servers can register themselves automatically on this site, leading to the following list of currently active WebSDR servers:

 

Location and URL Frequency range Antenna  
 
W4AX Softrock 160, 80, 40, 20. Atlanta, GA, USA
http://W4AX.com/
EM74uc; 17 users
1.799 - 1.991 MHz Inverted L at 100 ft.
3.549 - 3.741 MHz Clifton Labs Active Antenna and Norton Preamp
7.018 - 7.210 MHz
14.046 - 14.238 MHz
 
OE4RLC, OE3DUS, AMRS Testreceiver, Markt Allhau, SE Austria
http://www.websdr.at/
JN87bh; 9 users
14.126 - 14.318 MHz Two Element 80m Optibeam, 30m above ground
 
W4MQ RemoteBase in Reston, VA
http://w4mq.no-ip.com:8901/
FM18hw; 7 users
1.794 - 1.890 MHz Small Loop
7.117 - 7.309 MHz Dipole
14.053 - 14.245 MHz
 
3 Softrock Lite II Receivers located in Bucharest, Romania.
http://yo3ggx.1p.ro:8765/
KN34BK ; 3 users
3.590 - 3.782 MHz LW (6m) N-S oriented
7.007 - 7.103 MHz
13.995 - 14.091 MHz
 
S59DJR test receiver in Novo mesto, Slovenia.
http://websdr.sc-nm.si/
JN75NT; 6 users
3.566 - 3.614 MHz dipole @12m
6.950 - 7.142 MHz
 
HB9FX Remote Site Hochwacht
http://194.29.11.10/
JN37XH; 1 user
1.812 - 2.003 MHz 160m full size groundplane
10368.052 - 10368.148 MHz 16dB unidirectional test setup
 
Receiver at K7UEB, Walla Walla University.
http://outside.wallawalla.edu:8901/
DN06tb; 1 user
7.007 - 7.103 MHz 4BTV vertical on the roof (30 feet)
13.999 - 14.095 MHz Hustler 4BTV Vertical
14.102 - 14.198 MHz
 
Second receiver at University of Eindhoven, NL by Maxwell Stichting.
http://susanne.esrac.ele.tue.nl:8901/
JO21rl; 1 user
6.980 - 7.172 MHz multiband verticale
 
  websdr.pa3weg.nl at Delfi-C3 groundstation
http://websdr.pa3weg.nl/
JO21ex; 0 users
-0.024 - 0.024 MHz Nordholt active antenna
0.476 - 0.524 MHz
 
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