Nareszcie po ponad 7 miesiącach przerwy pojawił się troposferyczny dukt z prawdziwego zdarzenia, nie licząc słabych sygnałów z dalszej Danii w lutym. Jeżeli chodzi o odległości to tym razem jednak bez zbyt imponujących wyników, ale siła propagacji – wysoka. Mocno podwyższone warunki zauważyłem po włączeniu radia wieczorem około 22. Zresztą to nie była jedyna atrakcja tego dnia, ponieważ wcześniej nad Czechami i Słowacją rozszalała się jonosfera i MUF osiągnął grubo ponad 144MHz. Odebrałem dzięki temu wiele bałkańskich stacji, w tym także premierowy sygnał z Bośni!

tropo Read more / Czytaj dalej →

Yesterday I noticed a very weak station on 91.2 and after a while I realised it is a Swedish voice. However the antenna direction was wrong, it was heading Lithuania, Latvia and Estonia. Well… everything was clear – finally first reception via auroral propagation for me! The best signal strength was around 16 UTC with an antenna aimed at 0-30° azimuth.
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I have recently bought a portable radio receiver called Dual DAB 4. It supports DAB (MP2), DAB+ (AAC) and the analog FM. It is equipped with a monophonic speaker and a telescopic antenna (although it is too short for the FM reception). Frontier Silicon Verona FS2052 tuner module contains Apollo 2 RF front-end IC and Kino 3 DSP. It is possible to use an included external 7.5V switching power supply or 6x AA batteries.  Read more / Czytaj dalej →

Once you listen to any Czech FM broadcast channel, you can always recognize their modulation. Why? Czech Republic is using the loudest audio processing in this part of Europe. However, each FM broadcast must comply the ITU-R BS.412-9 recommendation till the end of this year, including both public and commercial programs. What does it mean? The average deviation will be greatly decreased. Some stations are already broadcasting using new standard, some not.
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I’ve been asked by our fellow Polish DXer to comment a little on his reception of a distant Ukrainian station in OIRT band. So, this time it’s not my DX, but someone elses. Alan’s report went unnoticed on Radiopolska Forum, but there’s a chance it will contribute the history of Polish FM DXing. That’s the reason to give it some attention here… Read more / Czytaj dalej →

I’ve been watching live propagation maps for few days. The upcoming tropo was staying somewhere between UK/Ireland and Austria, without any signs at my QTH. Finally on 15th November interesting conditions reached Poland, too. In the evening, stations appeared from Teutoburger Wald, Kreuzberg and Hoher Meißner, but with poor signal levels. Well… something is always better than no reception at all! ;-) The next day was much better  – I got Ederkopf, Ahrweiler (!) and Olsberg in the morning. As usually when the tropo starts I must go out. Anyway, remote tuner controlling via internet is really a brilliant thing. Read more / Czytaj dalej →