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Message-ID: <5.0.2.1.2.20010809190216.00a0cec0@mail.pncl.co.uk>
Date: Thu, 09 Aug 2001 21:16:52 +0100
To: rsgb_lf_group@blacksheep.org
From: "Walter Blanchard" <blanch@pncl.co.uk>
Subject: LF: ZL tx
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If you boys in ZL can't hear the German commercial monster Europe 1 on 183 
kHz (2 megawatts erp) there doesn't seem much chance we'll hear you. All 
the integration in the world isn't going to recover 63 dB  (assuming it's a 
reciprocal path of course).  Working to VE7/W7 it is different - the 
approximately north/south darkness path for you means daylight in our half 
of the globe so Europe 1 shouldn't propagate around to VE7 and jam you 
although it's only half as far away.  It has to go over the Polar Cap so 
add 20 db to the usual figures.

And vice-versa. Until you hear DBF39 you won't hear us on 136. And even 
then we would have to make up about 37 dB.  It might be a good idea if 
somebody in ZL could organise an automated watch on DBF for the next six 
months to see if anything is heard (seen?).  Shouldn't be too hard to do 
with Argo, Speclab, or similar.

Walter G3JKV.