Thanks Dave for this info!! Unfortunately nothing heard here in Berlin. But one hour ago there wasn't even anything audible from DI2AM, which is Now, one and a half hour later, 22:40Z, propagation do
Hi! After coming back home, RX quickly rewired to 600m-operation, and then I enjoyed signals on 500kHz :) -- QTH Berlin city JO62RM RX homemade simple superhet IF-bandwidth abt. 150Hz or abt. 2,5kHz
Hi Lubos! Great! Hope to hear from You / Your beacon soon :) vy73 Dennis Berlin city -- Original-Nachricht -- -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3 - sicherer, s
Hi Laurence! Many thanks for these interesting insider storys :) Quite distant, so the fieldstrengh transmitting with "amateur power" into antennas directly supported by trees will be clearely higher
Hi everybody! Some weeks ago there was a request about 500kHz ceramic resonators through this LF list. I'm going to order some parts for my tinkering soon. There are CSB500 at http://www.reichelt.de/
Hi! For some hours now I'm sitting in front of the computer, modelling a new and of course much much nicer :) preselector-filter for 500kHz. With a 3-inductor nodal capacitor-coupled bandpass, a 12kH
Hi! Thank You all for the many answers :) Amazing to learn more about the 500kHz-Experiment in USA! Dave, I'm not an hf-engineer. So, at first, it's my plain curiosity to sit some hours and model and
Hi Mike, this is a really amazing statement! I'm going to investigate this somewhere in the nature, kilometres away from cities and villages! Yes, the tree obviousely will act as a "black body radia
Hi David, Jim! Thanks for Your answers! Yes, Jim, but a 3-resonator-filter seems to be the best tradeoff beetween selectivity, and my ability to tune it. Don't have any special measurement gear... ..
Hi Dave! Did not know that, thanks! Yes, one single noise source I was able to track down was the energy saving bulb of my neighbours bedroom. Another source is my own Nokia cellphone charger But the
Gus, thank You very much for the offer :) I heard You several times and the signal will be nice, for sure. My primary hope was/is to receive a signal from the west, e.g. England. Thanks again vy73 De
Hi Dave! Thanks a lot for the infos and the link to your website. I'm reading your 500kHz pages now - interesting to know facts about the history of this slice of the spectrum. So I was not that very
Hi! My first ever WSPR receptions - by ear... :) Whoever it was, thanks for this experience! Anyway, here are your reports: 13.XI.2009 22:00:00Z - 22:01:55Z 503,9.. RST559 22:06:00Z - 22:07:55Z 503,9
Who started transmitting on 503.92 at exactly 22:00Z? Nice signal in Berlin! vy73 Dennis DL6NVC -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3 - sicherer, schneller und e
Hi! After some tinkering I'm surprised: The usual QRM is much lower tonight on 500kHz, DI2AM loud and clear by ear. I don't like to discuss pro&contra WSPR, but for today, I do not have any WSPR capa
Hi! At 21:00:00Z a 559 signal started. As far as I can say, using a free running & open air VFO and a low-cost-counter, qrg seems to be 503.98kHz. Gus, is it You? :) vy73 Dennis DL6NVC Berlin JO62RM
Hi Gary, thanks for this info about the G4JNT beacon! Have been overlooking this opportunity, somehow. Nice to have a signal to listen to. :) vy73 Dennis Berlin JO62RM -- Original-Nachricht -- -- GRA
Okay better to say: One cycle seemed to be 4min, divided into abt. 115sec TX and 125sec no TX, maybe RX? The beginning of the received transmissions were always well within half a second around even
Hi Rik, thanks for sharing this observation. Very interesting! 73 Dennis DL6NVC -- Neu: GMX DSL bis 50.000 kBit/s und 200,- Euro Startguthaben! http://portal.gmx.net/de/go/dsl02
Many thanks Markus for this neat explanation, and many thanks Edgar for asking that question! :) Especially that somehow twisted loops will not loose their nulls is a good message to me. ;) Greetings
