[Premium-Rx] Antenna question
John Wilson
johnwilson at freezone.co.uk
Tue Nov 13 17:24:31 EST 2012
Hello Michael,
Are you surprised that I am still here? And still compos mentis?
John W.
G3PCY
-----Original Message-----
From: Michael O'Beirne [mailto:michaelob666 at ntlworld.com]
Sent: 13 November 2012 22:13
To: PREMIUM-RX
Cc: johnwilson at freezone.co.uk
Subject: Re: [Premium-Rx] Antenna question
Gents
A propos John's offering tonight, I have a Wellbrook Loop mounted three
floors up on the roof and I can attest to its excellence right down to VLF.
If it does intermodulate, it certainly does not show it.
By way of example the strongest station here on LW is Radio 4 on 198 kHz
which booms in at around 10 - 15mV PD, and Radio 5 Live is a litle stronger
on 909kHz, yet weak signals just 9kHz away are not affected.
It picks up less absolute RF than a long wire but a hell of a lot less
noise, so the S+n/n is excellent.
The Loop also exhibits about 30dB directivity when exactly broadside and
that is useful if you mount it on a rotator.
73s
Michael
G8MOB
----- Original Message -----
From: "John Wilson" <johnwilson at freezone.co.uk>
To: "'Al Klase'" <ark at ar88.net>; <premium-rx at mailman.qth.net>
Sent: Tuesday, November 13, 2012 7:23 PM
Subject: Re: [Premium-Rx] Antenna question
> Well said, see my articles on the Wellbrook loop antenna. Out-performs any
> long wires.
> John Wilson
> G3PCY
>
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