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| To: | [email protected] |
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| Subject: | Re: LF: New LF grabber for very slow modes up to QRSS 240 |
| From: | Stefan Schäfer <[email protected]> |
| Date: | Fri, 03 Sep 2010 09:56:07 +0200 |
| In-reply-to: | <1728872565.4697864.1283496012139.JavaMail.fmail@mwmweb079> |
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Hello Horst,It is a homemade RX that downconverts 137 kHz to 12 kHz by using a BF862, a BF981 and another BF981 at the output. The 125 kHz signal for downconverting is achieved by using a 1 MHz crystal oszillator, divided by 8 by 2 CMOS 4013 stages... If the circuit is finished, i will publish it. But today it works very fine! Yesterday the QRN was high on all grabbers (in DL) ;-) 73, Stefan PS: Nw hr qrt, going to France now! Am 03.09.2010 08:40, schrieb Horst Stöcker: Hello Stefan what RX do you use at for your grabber? Just as a matter of interest. vy73 Horst DO1KHS/DI2AN ___________________________________________________________ GRATIS für alle WEB.DE Nutzer: Die maxdome Movie-FLAT! Jetzt freischalten unter http://movieflat.web.de |
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