Not parabolic, spherical. There are some things you can do with spherical that you cannot do with parabolic, like steer them by moving the focus point around. I think Arecibo is spherical as well. Yeah, lotsa gain. If it was parabolic it would be about 70 dBi at 900 MHz.
From: Eric Kuhnke Sent: Sunday, May 22, 2016 6:30 PM To: [email protected] Subject: [AFMUG] Do you think it has enough gain? The 500 meter parabolicdish http://www.bbc.co.uk/news/resources/idt-0192822d-14f1-432b-bd25-92eab6466362
