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[aprssig] 400 Mhz Radiosondes

Tim Smith tsmith_groups at mattapoisett.org
Thu Sep 13 17:24:02 UTC 2007


Bob:

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

Thanks,

Tim - N1TI

... the NWS launches them at the same
time every day...

400.250
400.625
401.000







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