This is a WebSDR receiver, located in IJsselstein, the Netherlands. It is operated by the PI1UTR repeater group, and is located on the Gerbrandy Tower at 220m AGL.
The receiver consists of three RTL2838U sticks with R820T2 tuner and a splitter and bandpass filter in front. Antenna on 70cm is a Procom CXL 70-5C/l, on 23cm an 8-slot waveguide (horizontal polarization).
For more information about the site and repeaters, please visit and More information about the WebSDR project can be found 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

Frequency: kHz

Or tune by clicking/dragging/scrollwheel on the frequency scale.

? kHz @ -6dB; ? kHz @ -60dB.
Or drag the passband edges on the frequency scale.
Waterfall view:
Or use scroll wheel and dragging on waterfall.

? dB; peak ? dB;
mute squelch autonotch
Signal strength plot:
Call of station that you hear (NOT your own call!):
Comments, if any:
Note: time, frequency, your name/call, and DXCC information are added automatically.
View the last 20 lines of the logbook, or the entire logbook (ctrl-click for new tab/window).

This WebSDR is currently being used by ? user(s) simultaneously:      compact view