Re: LF: Re: Re: Noise cancelling by using optic transmission of RX signals

[Andy Talbot <andy.g4jnt@googlemail.com>]

Not true on HF Rx.

The UK Navy have used active whips on their ships for many years for
HF Receiving - the AVK is a long tried and tested unit.  A two-metre
long piece of scaffold pole forming the E-Field probe into a wide
dynamic range high input-Z, unity voltage-gain  buffer amp.  Specified
for 10kHz tto 50MHz

Metal hulled ships do have to advantage of giving a very good ground
connection, however, and paying proper attention to decoupling and
bonding prevents outside-braid induced interference from gettign
anywhere near teh antenna probe.

Andy
www.g4jnt.com

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> There is no substitute for a real resonant antenna at the working frequency.
> G3KEV
>