Wide-band WebSDR in Enschede, the Netherlands
On this page you can listen to and control a short-wave receiver located at the amateur radio club
ETGD at the
University of Twente.
In contrast to other web-controlled receivers, this receiver can be tuned by multiple
users simultaneously, thanks to the use of Software-Defined Radio.
If you're new to WebSDRs, have a look at the quick start guide written by G0POT.
This site, which in 2008 was the very first WebSDR site ever,
was finally reactivated in July 2012 after an interruption of more than 1.5 years;
read also the old news since then.
[picture of the SDR hardware]
The system is currently composed of a "Mini-Whip" antenna,
a homebuilt SDR board (as pictured; see
here for background)
which samples the entire shortwave spectrum and sends all of this via
a gigabit ethernet link to a PC, where a special version of the
WebSDR server software processes it.
The Mini-Whip is based on a design from PA0RDT (google finds it); see
here and some older pictures
here.
The active receiving element is about 5 by 10 cm large.
Such an antenna only works well with a
good grounding;
ours is on top of a 20m high building, the upper part of which is all metal.
Other services available on this system:
Entire day waterfall display
Questions and remarks about this WebSDR can be sent to the developer
and maintainer:
pa3fwm@websdr.org
(but please check the
FAQ first).