The attached screen cuts are from my reception of Stefan's signal at 8970Hz from Livorno, Italy (JN53EM). Unfortunately I have had a damned blackout of AC mains here between 10:55 CET and 11:20 CET a
Hi VLF, any opinions about the Inspire VLF-3 receiver kit? http://theinspireproject.org/uploads/PDF/Theory_of_Operations.pdf Thank you in advance for your feedbacks. Regards Daniele
Hello Stefan, VLF, would a wide-band capture over 24 hours from my QTH/receiver be of some interest for you? If so, I think I could be able to send the results to you by the end of this week or so (h
Hello VLF, just to try to improve a bit my reception at < 9KHz, I'm looking for a easy-to-build E-probe design. Currently I'm using a very simple system (http://www.vlf.it/easyloop/_easyloop.htm) whi
Station on 18KHz could be Russian RDL (18.1KHz) which at times transmit CW messages like this one: "RDL RDL 85690 92256 85690 92256 85690 92256 K". Regards Daniele From: M0FMT <[email protected]> To:
Hi, glad that my rather imprecise reply helped you a bit. More details can be found here http://tech.dir.groups.yahoo.com/group/VLF_Group/message/14860 and a lot of info are available at this beatifu
Hi Alan, thank you for your help. Yes I know a bit about filtering facilities in SpecLab including the auto-notch filter, Paul Nicholson's filter, etc.. These help a lot indeed, but I would like to i
Could a very faint trace of a signal be found even in my attached capture? (very noisy location and very simple rx set, so little change it is a true signal). Regards Daniele From: Markus Vester <mar
Hi Stefan, VLF, I agree with you. With 60 seconds/plot I think > 12 hours are possible on my screen (1280 pixels max horizontal size, 1024 used normally). Say 5.00 UTC to 17.00 UTC for example. Pleas
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
I have some friends here in Italy who have been chasing a pseudo-regular signal around 8907Hz for months. I believe they have posted something about it in one of the VLF-related groups on yahoo. Rega
Hi Jim, I knew about your design, but after the explanation in your attached e-mail the differences w.r.t. the pre-amp I'm currently using.are much more clear. It looks like something I could try to
Hello Warren, yes, I see. However, I did not intend to use the VLF-3 for sub-9KHz ham radio listening, rather I'm looking for a VLF reception solution that I could possibly move away from domestic no
Hello Horst, what do you mean exactly with "a very high noise level"? Could you suggest to me (= dumb experimenter :-)) a good-enough measurement method, though simple in terms of required instrument
Stefan, "Each (personal, not relative to others!) record on that band or reception at all is a great feeling and tastes like the perfect combination of nostalgic radio and modern reception technics :
Hello Stefan, LF, VLF, now next questions: :-) 1) is the noise of the active antenna well below the typical band noise? 2) is the dynamic range large enough to manage the strongest hum levels at my l
Hello Stefan, LF, VLF, SS> So just look at 9 kHz without the generator and then increase the noise gernerator level so that the noise increases say 20 dB. DT> OK I started with the minimum adjustable
Hello Stefan, no detection of your signal here (though I did not expect to be able to receive it). Regards Daniele From: Stefan Schäfer <[email protected]> To: rsgb_lf_group@black
Stefan, the soundcard is a M-Audio Audiophile 2496 PCI. The sample rate is 48KHz at 24 bits/sample (as configured on SpecLab, but the same is reported by both Windows and M-Audio control panels). The
