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Re: LF: TA 24 JAN 06

To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: TA 24 JAN 06
From: "Mike Dennison" <mike.dennison@ntlworld.com>
Date: Tue, 24 Jan 2006 14:33:08 -0000
Delivery-date: Tue, 24 Jan 2006 14:34:33 +0000
Envelope-to: dave@picks.force9.co.uk
In-reply-to: <001101c620e3$1dffb480$6401a8c0@JAYTERMINAL>
Reply-to: rsgb_lf_group@blacksheep.org
Sender: owner-rsgb_lf_group@blacksheep.org
Glad to be your first W reception and best DX. While CT1DRP was strong
early his signal was noticeably weaker the rest of the night. On a
better night your signal would have painted solid white lines.
What are you running for power and antenna?
Jay, W1VD
I am running about 200-250mW ERP. Tx is a Decca currently at 500W 
output. The ant is an inverted-L Marconi with 16m vertical and three 
18m horizontal wires in parallel 1m apart (short garden). About 70% 
of the inductive loading is at the top of the vertical section and 
the other 30% at the bottom. I have recently tidied up the three top 
wires so they are neater and better engineered, giving me more top 
capacitance, allowing me to reduce the bottom loading and gaining 
more current (2.5A now). Both loading coils (and a small variometer 
for tuning) are wound with Litz wire. Earthing is four 1m stakes. See 
http://lf.apersonalguide.co.uk/antenna.htm for a drawing of the 
antenna set-up.
There is scope for increasing the Tx output and slightly increasing 
the spacing of the top wires. I estimate I could eventually approach 
500mW ERP before I run out of ideas, but that will take some time.
I estimate the distance between us as 5433km - my locator is IO91VT.

Thanks, again.

73 de Mike, G3XDV
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