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LF: Re: Re: Active Antenna Preamp of Bernd/DF8ZR

To: <[email protected]>
Subject: LF: Re: Re: Active Antenna Preamp of Bernd/DF8ZR
From: "Chris Trask" <[email protected]>
Date: Fri, 4 Dec 2009 15:52:16 -0700
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References: <38A51B74B884D74083D7950AD0DD85E828AB4A@File-Server-HST.hst.e-technik.tu-darmstadt.de> <E4F8850ABFC54E2EAB598BB328AD7DA7@TraceyPC>
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>
> >  Now, Bernd has posted the circuit of his preamp for active antennas: 
> >
> > http://www.mydarc.de/df8zr/lf-active-antenna.pdf 
> >
> >  It's nothing fundamental new. But it's just working very fine, with an
> > overvoltage shielded input. DLF (153kHz) gets attenuated by abt 40dB,
> > compared to the sigs in the wanted frequency range. Gain is abt 23dB.
> > It was published in summer 2003 in the CQDL. 
>
> The URL is an invalid one
>

    Works okay here.

Chris



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