SCP calculation

bart_ghz <shf2@...>


During the last contest i made some RS qqso's on 10 GHz.
I had internet acces and had pictures of the rain radar on my pc.
But some station asked to make qso via a SCP.
How do they calculate the scp point?Is it experiance or just logic
thinking or do they have a locator overlay over those rain radar

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