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| To: | <[email protected]> |
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| 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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| Sender: | [email protected] |
> > > 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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