A short summary of OH1TN signal F-s measurements:
Ground distance = 152 km, but the 'loose' soil
above the base rock = mostly few metres only.
Daytime ground wave F-s during 2000 & 2001 = 18 dB(uV/m).
No notable changes due to antenna config alterations.
During October 2001 daytime F-s variation up to 5 dB
observed e.g. on 9th & 10th but during most days
variation can be less than 1/2 dB.
The observed absolute Min & Max during evening and nite:
Min = 5 dB(uV/m), Max = 24 dB(uV/m)
The greatest observed variation during the dark hours:
8 dB during less than ten minutes.
My best regards to all Vaino, OH2LX
PS MANY THANKS for the special postcard sent to me
by the LF-group from the Windsor HFC 2001 !!
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