Post #4202281
2026-07-29 14:44 UTC
@davep@infosec.exchange @dtl@8bitorbust.info @a2es@mstdn.social 400Mhz is probably at the low end of its working range so may spread a little. I'm sure somewhere there is a gain figure for the dish (probably for higher frequencies) DTL is probably more of an expert here than me.
Replies (1)
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@davep@infosec.exchange 2026-07-29 14:56
@Extelec@mstdn.social @dtl@8bitorbust.info @a2es@mstdn.social Here's an example on Wikipedia "A 28.5 meter parabolic satellite communications antenna at Erdfunkstelle Raisting (Raisting Earth Station), Bavaria, Germany, the biggest facility for satellite communication in the world. It has a Cassegrain-type feed, transmits at 6 Ghz and receives at 4 Ghz with a gain of 64.2 dB" Which is pretty spectacular. https://en.wikipedia.org/wiki/Parabolic_antenna