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RadioDiscussions.com Discussion Boards>SPECIALTY>DX and Reception>Proportion between Frequency in kHz and Groundwave and Skywave distance?
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Author Topic: Proportion between Frequency in kHz and Groundwave and Skywave distance?  (Read 882 times)
Tom_
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Proportion between Frequency in kHz and Groundwave and Skywave distance?
« on: June 18, 2005, 01:38:53 AM »
As you go up the AM dial for a given frequency the groundwave gradually decreases while the skywave increases.

Is there a rough approximation of a formulae that calculates these relationships?

I see that stations in the X band of 1600-1710 kHz are limited to 10kW daytime and 1kW nightime.  

Is this limitation perhaps a result of the enhanced skywave and potential mightime interference in northern latitudes in winter on the X band?


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Edited by this Tom: on 06/18/05 06:45 AM.
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