Message-ID: <3.0.6.32.20011022144356.00997ae0@pop.saunalahti.fi>
Date: Mon, 22 Oct 2001 14:43:56 +0300
To: rsgb_lf_group@blacksheep.org
From: =?iso-8859-1?Q?V=E4in=F6_Lehtoranta?= <vaiski@dlc.fi>
Subject: LF: OH1TN transmissions (see RadCom Nov 2001)
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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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