Propagation depends on lots of variables. the number of hops, what the
conditions are on the first hop from the xmiting station. The xmiting station
can
have a different number of hops than the receiving station, some signals can
bounce around in between layers before being dumped out. I think there is a
multitude of reasons. we experienced the phenomenon on some of our Teletype
links in the service (Signal Corp 1954-55).
ED K8OT
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