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[aprssig] 400 Mhz Radiosondes

Jason Winningham jdw at eng.uah.edu
Thu Sep 13 18:22:30 UTC 2007

On Sep 13, 2007, at 12:24 PM, Tim Smith wrote:

> Bob:
> What is the modulation scheme?  AFSK on FM, FSK, etc.?

IIRC, the 400MHz sondes flown around here are 300 baud AFSK on wide FM.


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