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| To: | [email protected] |
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| Subject: | Re: LF: Re: VLF/LF-Preamp |
| From: | Chris Dillon <[email protected]> |
| Date: | Wed, 30 May 2012 12:13:12 +0100 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]> <003a01cd3cee$0e74a1a0$1502a8c0@Clemens04> <[email protected]> <[email protected]> <[email protected]> |
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Hi PeterSorry I missed your earlier posts in the change to Yahoo Groups. I'd like to try a balanced probe - are you using the same circuit (with INA111) as on the www.vlf.it site or have you modified it? 73 Chris G3WCD On 29/05/2012 20:39, pws wrote: Moin Stefan, You wrote:...How sensitive is the balanced probe to shielding effects (trees, houses)?Don't know yet. But see those screenshots. There are much less local interference lines visible.Any difference to the E field probe?This IS an e-field probe, but a balanced one. Got the idea from there: http://www.vlf.it/immagine/minimal_E.html (tnx)Where do you have the INA111 from?From Farnell, the TLE2426 voltage splitter too.What are the differences on 137 kHz? Is there a significant S/N improvement?Not tested yet. But as I wrote it should work. Peter, df3lp |
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