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| To: | [email protected] |
|---|---|
| Subject: | Re: Re: LF: LF activity today. |
| From: | [email protected] |
| Date: | Mon, 29 Apr 2002 17:22:05 EDT |
| Reply-to: | [email protected] |
| Sender: | <[email protected]> |
|
Hello Giulio and group,
Giulio wrote: > Well with I station all the three location are the same, but for the DX station there is big difference, for example with NM and WD in Hell, yesterday not a wisp from my home qth < Well, your TX signal from the "big" antenna has absolutely no problem to cross the Alps, I could *hear* your signal sometimes during last weekend. We already had a 'solid copy' QRSS qso (I think while we were waiting for RU6), with a bit of luck even a normal CW QSO could be possible. Did you consider to build a loop with adjustable 'elevation' ? A system of two orthogonal loops may be helpful in an experiment to find the elevation. Markus (NM) has a very interesting RX system for azimuth detection on a waterfall which may be modified to detect the elevation of a signal. I am planning to build such a system based on his plans (and software) as soon as possible. Good luck, Wolf DL4YHF / DF0WD (JO42fd). P.S.: About the crude Hell letters from DF0WD which looked a bit like "Lego blocks": I used a simple 'sequential single-tone' Hell signal, while Markus transmitted in Chirped Multi-Tone hell which gives a nicer spectrum and allows narrower bandwidth without smearing. But you need a quite linear TX for it, otherwise the important amplitude shape gets lost. |
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