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.
Once you listen to any Czech FM broadcast channel, you can always recognize their modulation. Why? Czech Republic performs the loudest audio processing in this part of Europe. However, each FM broadcast in this country 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.
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…
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.
It is October 28. There is some snow outside and sub-zero temperature. Well, nothing indicates an upcoming Sporadic-E propagation… In the morning, few minutes before 9 UTC, I heard a foreign station on 93.9. I was not sure what’s going on, but after a short investigation I realized that CCIR band is really open to Tunisia and Italy via ionosphere – Es. Definitely rare thing at this time of year. Sporadic-E lasted for about 35 minutes and at ~10:20 everything faded away.
Autumn is well known as a perfect season for tropospheric ducting. First notable long-path ducting occurred this year on September 7, but it was just a short propagation. This time, good tropo conditions lasted much longer. Everything started in the evening on October 18 with strong tropo from Lithuania and Belarus. I also got some stations on OIRT band (66 – 74MHz) including Babrujsk (~650km, 73.01 stereo O=5-). Actually I don’t have any OIRT-dedicated antenna and my all receptions were made using Körner 19.3. Stations from Vilnius reached RDS & clear stereo signal (98.3, 102.6, 106.8). Although the distances were not so great, I have received some stations for the first time.