Greetings all, Just to inform you that a new station is active on LF: Michael, DB6NT, located in JO50 not far away from the OK-border. Some may know him from his microwave activities. I had a nice QS
Hi Warren, There is a quite recent screenshot of my VLF reception here: http://freenet-homepage.de/dl4yhf/t/vlf_experiments.htm Look for the "2008-07-31 Broadband VLF Spectrum". You can spot NAA as a
Greetings all, The Russian ZEVS transmitter is on air again, sending "QRSS"-like signals with 4-minute element lengths on 82 Hz (!). In western DL, the signal is clearly visible with an E-field anten
Hi Laurie and the group, Fortunately, there are alternatives to these new shiny TFT-colour-display-equipped "top class" radios: For weak signal modes, use software defined radios like SDR-IQ, Perseus
Hi John, Dave, and the group, Thanks for the report... Dave G3WCB schrieb: DK7SU (I'm nearly sure) heard this morning at 0835z on CW RST 349, by ear. DK4U calling CQ 136.7 RST 559 then in QSO 136.6 w
Hello John and group, That 'something else' was DK4U in QSO with DF6NM, shortly before qsy-ing to (137).400 kHz in PSK31 . Thanks for the QSO Chris and Markus; and hope to see you next weekend in CW
Hello Dave and the group, Thanks for the report - hope to catch you on LF as soon as your TX is finished. I am missing the former activity from the UK... now that the conditions are improving. The HE
Hi Peter, Or use DL4YHF's "complex calculating editor". It's a very simple nodepad-like editor, with one big exception: It can calculate complex numbers, formulas, etc. For example, you enter 1/ ( 0.
Hi Alan, Not really - but the program runs nicely under Linux (at least, Kubuntu) running Wine ;-) [for others: WINE, a linux "helper" application, allows running many apps originally written for win
Hello Nicolas and group, you wrote: Thanx dear Wolf for this first LF QSO with DK4U, i hope a second contact the next week. Many thanks as well, Nicolas. Your signal was easily readable this weekend
Hi Nicolas, I saw your CQ today (shortly before you worked F6BWO) but didn't manage to work you then. OK1DTN was also there, solid "O" copy here (actually audible, but I didn't have the elbug ready f
Hello Ed and group, Thanks for triggering this amount of activity, and -also to the othersfor the QSO. Your signal was, as usual, very strong here at times - even audible round midnight. Interesting
Jello Jim, Yes, definitely. Being quite close to DCF39, these sidebands are really annoying. Markus DF6NM had to switch in a noise canceller to eliminate some of the QRM from his colour-direction fin
Thanks for the report Dave. At the moment (10:38 UTC) I can see a 3rd stn transmitting WSPR on 137.517 (-ish), but still masked by a carrier here, so only visible but not decodable. If the sender is
John F5VLF ;o) Need a pretty decent antenna length for that, right ? And just consider the 1/f noise in the milliHertz receiver - use liquid helium cooling for the frontend ;-)
Hello Jean-Pierre, Uwe, and all; Jean-Pierre Méré (F1AFJ) schrieb: If I understand well , I am very favoured not to have a more local QRN ! for 9 months I systematically put at fault the jammer by ma
Thanks Victor, The signal on your screenshot with the strange "hook" at the beginning is DF0WD (operated by DL4YHF). Markus DF6NM noticed me in a PM about the effect. I don't know what causes it yet,
Hello Markus, Jim, and all, Yesterday I did basically the same experiment using an audio filter, and saw no difference at all in decoding ability between full SSB bandwidth and a 250 Hz filter. I con
Hi Jim, Confirming your QRO : at least 4 dB more SNR here, using indoor loop, same as last time. 2318 -12 1.1 0.137500 0 M0BMU IO91 27 Cheers, Wolf DL4YHF (possibly active from DK4U / DF0WD on 136 kH
