As the 7-mm secondary focus
receiver will be installed
for test purposes in the optical centre of the focus, there has been
made
a test observation at the end of January 1998 in order to have the
"status
quo" before changing the receiver position.
The observation made by E.
Fürst showed a
good aggreement with observations made by W.J.Altenhoff (in 1997).
Click
here to see the complete report (in german) !
The main
results are:
The half power
beamwidth 18
to 21 "
(depending
on elevation).
The
antenna-efficiency is about
15 %.
First sidelobes
are 10 dB beneath
main beam, which is slightly elliptical.
