> From: [email protected]
> To: [email protected]
> Date: Tue, 3 Jan 2012 16:06:52 +0000
> Subject: RE: LF: Antennas
>
> Don't forget, Mal still uses cats whiskers and coherers - that's why he
> needs large antennas and keeps on asking everyone to use QRO amplifiers and
> antennas that need 2 acres of ground space because he cannot hear them :-)
> But more seriously, I rather agree with Andy, unless you need fancy
> directional processing for the rx side you only need to be external noise
> limited - all the naval systems (that I've dealt with...) use active rx
> antennas and serious multicouplers. Tx uses as much metalwork as they can
> get up there, generally whips. Subs also use active antenna probes and loops
> for vlf (rather a critical area you might think....) - rather less
> interested in transmitting though:-)
> But it would be nice to have the space and low noise level that Mal seems to
> have........
>
> Paul G8GJA
> -----Original Message-----
> From: Dexter McIntyre W4DEX [mailto:[email protected]]
> Sent: 03 January 2012 15:02
> To: [email protected]
> Subject: Re: LF: Antennas
>
> What commercial two way LF stations still exist? All that I know of just
> transmit. Way back when there was two way LF traffic a high level receive
> signal was needed for the cat whisker detector to work :)
>
> Dex
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