During the first and last minutes of a pass over North America, AO-27 is in Digital Mode; all you will hear is packet. In-between is when the AO-27 is in Analog FM mode. Check out http://www.ao27.org for more information.
73, John W9EN DM13LE W9EN@AMSAT.ORG
On Aug 10, 2010, at 6:40 AM, Bob Schmidt wrote:
The last couple of passes that I have tried seemed to start well - I hear stations using the repeater - but then some sort of digital signal takes over and no other voice activity is heard. Is this some command work being done by the ground controllers?
Thanks
Bob, WA9JDR
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