|Subject:||Re: VLF: here no results from DK7FC's 8th experiment|
|From:||Daniele Tincani <[email protected]>|
|Date:||Sat, 23 Oct 2010 10:37:32 -0700 (PDT)|
|Dkim-signature:||v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1287855453; bh=riR+hrTMQwDvCxy+ZbebDWEPYGba+8KZOXEWA3X8fh8=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=lLZhDfvYVCG8ELTC46/Z/Rx/mvZGxFBJIz2BNxho+SduX9DgGuu4TkAXrqpJ884Ct93o102Z7ZconIE/MUukTrlwQ5SH3ausx20dGbr3FqgtjmKGtjF1My9pn6SHhzkawAYyFabdEPD8KOb/scLAFRDwKMN7KV6zXx/16WEHxcU=|
|Domainkey-signature:||a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=29FNtQgKY34Bjwf2WoxQdhYFe6OkmXOXVUm+C/BTanV6mH4nlXVoqGzBBWLzUBRLr7AH8LqalASJN2ti4+q28irM7jnaNQ5b4CkMEZ0mg8buux4OM5JYsprNKwG/HD6vws3UgZnCLb3gBQcDKvnPzlNYG0a99rge8MoE0Dk//nw=;|
|References:||<[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>, <[email protected]> <[email protected]>|
Hello Horst, I live in a very noisy sub-urban area too (in JN53EM). Lots of power lines, a motorway, a railway and tens of small factories are around here just within a few hundreds meters. I attach a broadband capture I did some days ago over > 12 hours just to give you an idea of the hum level at my QTH :-)
Nevertheless, I managed to have a fairly good reception of first Stefan's 8970Hz tx today. For this reception I used a very simple-to-build loop design from Renato Romero and Marco Bruno (http://www.vlf.it/easyloop/_easyloop.htm). Please consider that my loop sits simply on my balcony on the 5th floor of a 6-floors tall building, with a nicely open view towards the sea, from south-west to north. It is only a few meters from home mains, PC, TV, etc..
I think that some hum reduction (which happens in the morning), great quality of Stefan's signal and digital processing in SpecLab all play a decisive role. For SpecLab, I attach here the USR files that I used today for 8970 and 6470, they were kindly sent to me by Stefan and I found there has been a great improvement in signal readability at 8970, compared with my previous reception (during 7th experiment) in fairly similar conditions.
With my best whishes for a good reception on next trasmission experiment :-)
From: Horst Stöcker <[email protected]>
To: [email protected]
Sent: Sat, October 23, 2010 7:11:21 PM
Subject: VLF: here no results from DK7FC's 8th experiment
Hello all, congrats to Stefan and all who had success in receiving his signals.
I had no success in receiving Stefans tests. This time I used a mini whip with my IBM laptop soundcard. Normally this is a real step forward in my RX setup for VLF. The one I got from Roloef (many thanks) is optimized for VLF reception. Much better than any antenna I tested before. All three Alphas are well vissible. But obviously the noise level is to high here at my home QTH, indeed. I supposed that before. Now I know.
I do not think that I can find a better position for the antenna. It's now about 8 m above ground, mounted in a 2m PVC tube on an old chimney.
So I can find just one conclusion: All of you who could reveive Stefans transmissions must be living more or less on the countryside. Or should it be that I have the pity to live in such a noisy urban environment?
Next time I will have to go to the countryside, too.
Looking forward to SAQ tomorrow. I received SAQ many times and this time with the mini whip it will be easyer then ever.
vy73 Horst DO1KHS/DI2AN
|<Prev in Thread]||Current Thread||[Next in Thread>|
|Previous by Date:||VLF: here no results from DK7FC's 8th experiment, Horst_St=C3=B6cker|
|Next by Date:||Re: VLF: here no results from DK7FC's 8th experiment, Paul-Henrik|
|Previous by Thread:||VLF: here no results from DK7FC's 8th experiment, Horst_St=C3=B6cker|
|Next by Thread:||Re: VLF: here no results from DK7FC's 8th experiment, Horst_St=C3=B6cker|
|Indexes:||[Date] [Thread] [Top] [All Lists]|