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Old 18th Jul 2017, 10:24 am   #42
G8HQP Dave
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Join Date: Sep 2008
Location: Solihull, West Midlands, UK.
Posts: 4,872
Default Re: Off Air Frequency Standards....

For off-air reception the issue is not how stable is the standard but how stable is the ionosphere. I vaguely recall seeing some discussion of that some years ago, but I can't remember where.
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