[amsat-bb] Re: The Tragedy of the commons / split frequency working

Trevor m5aka at yahoo.co.uk
Tue Feb 24 12:46:33 PST 2009

While in theory anyone with a kilowatt output and good antenna system could control access to a single channel FM sat by instituting some form of net procedure in practise nobody has done so. 

What I beleive people want to have are random QSO's that they initiate themselves and that are aren't controlled by anybody else. 

If you get more than half a dozen Amateur operators active in the footprint of a single channel FM satellite they'll inevitably be congestion issues. 

We'll just have to live with that for those satellites that have already been designed, but for future designs a linear transponder seems the obvious choice. A 40 kHz linear transponder would allow for multiple SSB QSO's over areas with a high Amateur population but would still enable the use of FM in the many areas of the world where there are few Amateurs. 

73 Trevor M5AKA


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