[amsat-bb] Another mailing list?

[Stephen DeVience]

I'm trying to figure out what satellite antennas I should build next, so I
ran some simulations of signal strengths for various ground station and
satellite antenna combinations, given a tumbling satellite like the foxes.
It turns out a dipole or whip antenna on the satellite is not so good,
because some fraction of the time is spent in its null (when the long axis
of the antenna is pointed toward ground). It's more reliable to have an
omnidirectional, circularly polarized antenna on the bird, which is why
things like this exist:

https://gomspace.com/shop/subsystems/communication-systems/nanocom-ant430.aspx

It's similar to the design on Lilacsat-2. It would also make your
Lindenblad very happy.

I'll have to write something up for the Journal.

-Stephen, N8URE