(NOTE: Was found to be off the air Sept 26,Ģ014. It is unique in that it covers the CB band only.

CB WebSDR receiver - Bordeaux, France.

WebSDR de SK4KO located in Mora, Sweden (awaiting relocation to new QTH).

Ardam ham radio club WebSDR receiver, at Ordino, Principality of Andorra, located in the heart of Pyrenees, at an altitude of 1,400 M, in northern Spain, near the French border.

EME (Earth-Moon-Earth) 3cm signals using a 25 m dish in Dwingeloo, Drenthe, Netherlands.

PI4THT - 80m, 40m, 20m band signals from Amateur Radio Club of University Of Twente, Enschede, Netherlands.

Hack Green, England, now a working museum.

Stoke-on-Trent ARSHF WebSdr is located at the Nantwich Secret Nuclear Bunker, formerly R.A.F.W7RNA WebSDR is located in Sedona, AZ, USA (north of Phoenix).K3FEF & W3TKP WebSDR located in Milford, Pennsylvania - Northeastern USA.KFS WebSDR HF radio receiver system located six miles south of Half Moon Bay, California, USA.VE1BAS receiving station is located in Oromocto, New-Brunswick, Canada.Now there are 173 WebSDR servers in operation around the world (updated April 28, 2018). When I first posted this page, a few years back, there were only a few active WebSDR servers. There is an ever increasing number of servers being activated.

The software server lets many users simultaneously tune the SDR to different frequencies to listen to. WebSDR (Web Software Defined Radio Systems) was developed by PA3FWM. When thatīecomes the case, I will reactivate the links and you will have access Know that they might be reactivated by their respective owner.

The 'dead' links have been left in their inactive state to let you The list of modes is nearly endless because new ones are The 'live' links will let you hear ham radio operators usingĮvery imaginable mode of communication. To amateur radio communicating with each other around the world. The links below will actually take you to sites where you can listen In addition, Firefox is the most secure of all browsers. With its unrestricted autoplay of sound, it will let you listen to stations on a WebSDR system. This means that WebSDR sites are soundless on a Chrome browser! Please note: Google has decided to modify its Chrome browser - and Android devices - to *not* allow it to play sound automatically anymore.

What is rtty on ham radio