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LF: Re: 136kHz ferrite rod antenna test

To: <[email protected]>
Subject: LF: Re: 136kHz ferrite rod antenna test
From: "James Moritz" <[email protected]>
Date: Tue, 23 Aug 2011 23:17:14 +0100
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Dear Stefan, LF Group,

This is the schematic of the rod antenna and preamp I am using. The output transistor runs at quite high bias current, so it can drive a number of receivers in parallel - to save some battery drain for use /P, the 2 x 220R emmiter resistor and series choke could be replaced with a single 270R resistor.

Cheers, Jim Moritz
73 de M0BMU

Attachment: Ferrite_ant.png
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