Stefan Schäfer pisze: Wow! Dear VLF, This was very nice to read. So many messages and so many positive receptions. I am really impressed! *Many thanks to you all* who have been active on this day, wa
Stefan Schäfer pisze: Piotr, I just saw that i misunderstood something: I do not need to include the reduced antenna efficiency since it is already included, since the calculation is for 1 A Antenna
Tony pisze: Hello group. Has anyone any experience with this SDR ? It looks interesting and I'm a bit tempted, especially as it works full spec down to 500 Hz and "usable" to 100 Hz. But as I have ne
Dave Pick pisze: Dear all. I've had a query from an amateur who is studying the Russian Alpha transmissions. He would like to contact others who are using software to get a positional fix by comparin
John GM4SLV pisze: Wow! I know people are using some pretty high SHF frequencies these days, but to call 10GHz "LF".... ;-) Hi John, well, if the modulated carrier is a laser (make it a red pointer p
Roger Lapthorn pisze: https://dl.dropbox.com/u/15047843/xbm0001.jpg is running and looking for G3XIZ's test on 8.9719kHz. It updates every few minutes. Grabber is 34km east of Chris. For some reason
Hello LF, yesterday, abt 2200UTC i could see a letter "Y" transmitted on 136.177 khz in DFCW : http://www.toya.net.pl/~mlynarski/ any suggestions about the callsign? 73, Piotr, sq7mpj qth: Lodz /jo91
Stefan Schäfer pisze: Hello Piotr, Nice to see that you enjoy the LF receptions :-) Generally its nice to see new upcoming stations and a never ending interest in LF operation. Soon, i will be one of
Wow! what a night for me :) half hour ago i 've reported my reception of Markus "NM" now ( see attachment) Gus, "BHZ" appeared at 136.178kHz one night two stations ! ... Piotr, sq7mpj qth: Lodz /jo91
Piotr Mlynarski pisze: you must write the following line: *capture("c:\sheep\dream.jpg")* well, i wanted to put the line in a boldface style but i can see it with "stars" so Roger , the line should l
Stefan Schäfer pisze: Sorry Piotr, I just discovered your locator in the capture text field. 73, Stefan Hi Stefan, yes , the locator was there but tha capture field is a small one so you are right -
Markus Vester pisze: Thanks a lot, those are the best captures so far this season. Also Dex in North Carolina received good traces from Ossi's "5" and my "NM". Going to longer symbols (actually 82 s
Andy Talbot pisze: A warning to anyone contemplating making power amps - especially class E types. Don't even think about using the small high voltage ceramic caps availalble at low cost from the sup
Andy Talbot pisze: Hindsight suggests we should all have normalised to 1Hz, quoting S/N in this width, but what's a constant 34dB offset amongst friends :-) Ok Andy yours, piotr, sq7mpj
mal hamilton pisze: vlf As a guide for those interested in VLF 9 Khz it would be useful if each station could use the Alpha station on 11905 Khz as a benchmark for quality of reception. and let us al
Markus Vester pisze: Great, thanks Laurence! The beacon has come on air at 21:11 with approximately 0.9 W ERP. Hope that others may decide to join in... 73, Markus Hi Markus, LF, i've switched on my
Andy Talbot pisze: Looking at the WSPR database, F6CNI is decoding me consistently in the 0dB S/N region. At 391km this can't be realistic, and most likely comes from using a narrow filter - sub 200H
Andy Talbot pisze: 300Hz wide CW filters made a fraction of a dB difference, compared with an SSB filter used as a reference; well, indeed , in my free time i have to look inside the wspr code .. i j
[email protected] pisze: Very strong signal here. Also beautiful reception of SAQ in JO91RS (along with rsdn20 stns) 60cm loop + SRD-IQ 73,Piotr, sq7mpj qth: Lodz /jo91rs/ JPEG image
Markus Vester pisze: ..... Canadian Spiderman CFH is pounding in here hour after hour, so TA conditions can't be bad - guess I'll try to emit a few more "NM"s on said QRG. Hi Markus, yesterday , abt
