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Re: VLF: here no results from DK7FC's 8th experiment

To: [email protected]
Subject: Re: VLF: here no results from DK7FC's 8th experiment
From: "Roelof Bakker" <[email protected]>
Date: Sun, 24 Oct 2010 18:08:31 +0200
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Hello Paul-Henrik,

I have build a special mini-whip for Michael Oexner, which uses CAT5 network cable for RF and DC feed. It is equipped with an isolating transformer in the mini-whip and antenna interface plus common mode chokes in the DC feedline. The isolating transformers are obsolete MCL type TT1-6's, which have a lower roll off of 4 kHz.

I had a limited supply of TT1-6's and have replaced them with a home made transformer wound on a Amidon BN-73-202 binocular core.
As far I can see the frequency response is the same.

Unfortunately I had to go out of town on Saturday and could not participate in the experiment.

73,
Roelof, pa0rdt


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