[amsat-bb] Re: S band and Eagle: an appeal for a higher leveldiscussion
bruninga at usna.edu
Mon Sep 11 06:52:47 PDT 2006
> Mode B suffers from a worse problem than the S-band noise:
> physics. The Mode B receive antennas need to be phyiscally
> large, and putting up large antennas is becomming a problem
> more rapidly than overcoming noise on 2.4.
Lets preserve 2m downlinks for OMNI directional downlinks to
Mobiles and handhelds where the 19" mobile whip OMNI has
a 9 dB advantage over 70cm and a 24 dB advantage over 2.4 GHz.
We can easily close the link to mobiles and handhelds with
Omni antennas with 2 meter downlinks from space. I hope we
Continue to develop this mobile satellite capability.
PCSAT and ARISS packet system demonstrate this easily.
De WB4APR, Bob
More information about the AMSAT-BB