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

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Subject:	Re: LF: Noise cancelling by using optic transmission of RX signals
From:	Alberto di Bene <[email protected]>
Date:	Wed, 16 Dec 2009 22:51:59 +0100
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Roelof Bakker wrote:

Hello Stefan,

This sounds quite interesting.
An other option is to use a twisted pair of CAT5 network cable and  
rf-isolation transformers at the antenne and receiver end.
The power for the active antenna can be fed over a second twisted pair.
I have used this in a few stubborn cases.

I used a couple of these ununs, galvanically isolated, at the two ends of the coax.
It helps a lot. The core was a very high permeability one.

73 Alberto I2PHD

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