CAMRAS

picture of the antenna
tracking:  
az.: ° el.: °

Explanation of the live streams of our WebSDR

The first two streams are connected to the 25m Radio Telescope.
Below the Telescope picture one can find the actual position of the beam. In case the EME group is active the Radio Telescope will track the moon. In such case you may find both 70cm and 23cm Moonbounced signals in these streams. When the group is not active the second stream will reflect the reception of the satellite band. When there is no EME activity, the Radio telecope may be in its 'showstand' (showing position) (30' Elevation and 30' alt-azimuth), or may be tracking astronomical objects. Occasional live terrestrial signals and even strong satellites can be heard in the side lobes of the beam even when the telescope is in the 30' 30' show position.

The other streams are generated from antennes located in the Radio Garden.
The third stream is connected to a broadband omnidirectional Discone antenna at 15m AGL. This stream can be used for the reception of 430 MHz thru 440 MHz amateur radio repeaters.
The fourth, fifth and sixth streams are connected to a 4 element 144MHz Yagi at 13m AGL. This antenna is facing South. Here one can receive the ISS and amateur LEO satellites. A seperate receiver shows the fifth stream for meteor scatter reflections of the French space radar GRAVES.The sixth stream shows a portion of the 120 MHz band and here the Eelde Approach(EHGG)communication between tower and aircraft can be heard.
The seventh stream is connected to a 4 element 70MHz Yagi facing South at 11m AGL. Here one can receive 4m radio amateurs.
The eighth stream is connected to a 3 element 50MHz Yagi facing South-West at 9m AGL.Here one can receive 6m radio amateurs.
The ninth stream is connected to a single turnstile like LOFAR LBA antenna. This antenna is oriented to the zenith. Here one can receive meteor scatter reflections of the Belgian Dourbes (BRAMS) beacon, the Belgian Ypres (IRIS) beacon and the RSGB/BAA (GB3MBA) beacon from the UK.
The tenth stream is connected to the 15m 'radio JOVE' antenna for the decametric radio emissions of the planet Jupiter in conjunction with one of its moons Io. However most of the time, when the ionosphere is to dense, only terrestrial signals can be heard like the 15m amateur band. The antenna is a double dipole phased array beaming South at 4.9m AGL.
The eleventh stream is connected to a single turnstile like LOFAR LBA antenna. This antenna is oriented to the zenith. This stream is for the reception of the 40m thru 60m band, Broadcast and radio amateurs.