Topband: midnight peaks

K1FZ-Bruce k1fz at
Mon Sep 19 13:30:20 EDT 2016

I often get a peak from 11:30 to 12:30 from Europe
 Work F8IQS, G4ERZ, G3ROO, SV3RF, LY2OU, LA7THA, G4UFK, EA1VM and others
Even though its near midnight here, it is aproaching sunrise  there.73

On Mon, 19 Sep 2016 13:04:30 -0400, Carl Luetzelschwab  wrote:

       Over the years I have seen a few comments with respect to signal peaking
around local midnight. If you search on "midnight signal peaking" in the
topband archives, you should come up with four results. The one from DJ8WL
back in Nov 96 appears to be the only relevant one that I found. 

I don't know if this is somewhat consistent or just coincidental with the
variability of the ionosphere. Regardless, any physical explanation likely
involves D region chemistry. 

Carl K9LA
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