... rethinking after sending, I may have mixed up Doppler shift signs. A falling pattern (ie. HF to LF stripes) would be spectral components closing in on one another, meaning increasing delay, negative Doppler and upward movement of the reflector before midnight. Still, the mystery about the long delay and the fast Doppler remains.
73 de Markus, DF6NM
In einer eMail vom 11.02.2006 22:46:39 Westeuropäische Normalzeit schreibt [email protected]:
Perhaps even more stunning is the fact that the pattern has a frequency dependence, with the falling slope indicating a periodicity of ~100 Hz. Interpreted as multipath, this would be a 10 ms delay, with a Doppler shift changing from +0.2 Hz to +0.03 Hz...
|
