picture of the antenna 70cm and 23cm EME signals recorded using the 25 m dish in Dwingeloo.

Currently, there is no live EME reception. Instead, we're playing a recording made during the EME activation of the 300m Arecibo dish during the Echoes of Apollo project. This recording was made on April 17, 2010, around 19:00 UTC, on 70 cm.

We're also playing a recording made during the 2009 EoA project. This recording (made on 23 cm) includes a QSO between PI9CAM (that's the callsign we use at the Dwingeloo dish when transmitting) and HB9MOON, around 1296.040 MHz.

Next live EME operation: JOTA weekend on October 21-22, 2017. We hope to have the dish running on Saturday between 08:00 and 16:00 UTC, and on Sunday between 09:00 and 11:00 UTC.

2m receiver for meteor echoes

The 2 m band receiver uses a 5-element yagi antenna bearing south, 10 m above ground in the radio quiet zone near the radio telescope. Its aim is to listen for meteor echoes from the Graves radar system in France.

6m receiver for meteor echoes

The 6 m band receiver uses an HB9CV antenna bearing south, in the radio quiet zone near the radio telescope. Its aim is to listen for meteor echoes from the Belgian beacons (Dourbes and Ieper).

More WebSDR receivers for other bands can be found via

It seems you are using a mobile device; click here to switch to the mobile version of this site.
It seems Java is not installed or disabled on your computer. You need to install and/or enable it for this website to work properly.
Since Java version 7u51, Java needs to be enabled separately for each website; see for instructions.
Your browser does not seem to support HTML5 WebAudio; please try a recent version of Firefox, Chrome, Opera or Safari; or switch to Java.

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:
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

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.