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Re: LF: M0BMU small antenna test beacon

from [Chris McCarthy] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: M0BMU small antenna test beacon
From: Chris McCarthy <[email protected]>
Date: Tue, 9 Jun 2009 22:33:01 +0100
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In-reply-to: <C10E0C39C85E4C0583562B56DB0056DE@JimPC>
References: <C10E0C39C85E4C0583562B56DB0056DE@JimPC>
Reply-to: [email protected]
Sender: [email protected]
Jim,

I can hear the first 4 signal levels consistently. On 100mW I would say you are peaking about RST 5 7 9 .

Chris, G3XVL
Ipswich, Suffolk (JO02NB)

RX Icom 706
 Ant:inverted L at 10 mtrs.


2009/6/9 James Moritz <[email protected]>
Dear LF Group,

As art of continuing investigations into antennas, grounds, etc., I am running a beacon at the moment on 503.5kHz - I am testing a small "/P" antenna similar to what G3CWI proposed to use a couple of weeks back. It is a 9m high "umbrella" with 4 x 5m long top loading wires sloping at about 45degrees. Ground system is 4 x 20m radial wires.

The beacon is transmitting an 8wpm CW identifier, followed by five 5 second dashes at reducing power levels in steps of 6dB. The maximum ERP is somewhere in the region of 100mW ERP. The sequence repeats every 2 mins roughly.

I'll leave it running until after dark at least - any reports would be very welcome.

Cheers, Jim Moritz
73 de M0BMU


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