[Ground-station] Balloon Launch - experiments?

Phil Karn karn at ka9q.net
Mon Apr 23 10:46:34 PDT 2018


On 4/23/18 10:17, Michelle Thompson wrote:
> Five and Dime is where we're at. 
> 
> 5GHz up and 10GHz down. We have aspirations to move up, but our bread
> and butter is 5 and 10.

Then a surplus Omnitracs taco-shell antenna should do the trick for 10
GHz transmit (they're designed for Ku-band). We could avoid the need for
a directional receive antenna at 5 GHz by simply turning up the wick on
the ground (and using a directional antenna).

The antenna itself is metallized molded plastic. We'd have to extract
the motor and drive from a fairly heavy cast metal chassis. I haven't
looked at one of these things in a long time but I'm sure Kerry Banke
has a good stock of them.

Phil
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