CZECH REPUBLIC 270 At 1011 UT March 1st still S=9+20dB in eastern Bavaria area near Nuremberg on the Czech-German border. But nothing heard now on 270 kHz anymore in all Germany, Switzerland, Italy, Poland and Ukraine. 73 wb
----- Original Message ----- From: "Kai Ludwig" <>
Sent: Saturday, March 01, 2014 11:09 AM Subject: [dxld] Technical changes at Topolná transmitter
The technical changes as announced on the press conference on 27 February http://www.digizone.cz/clanky/dlouhovlnny-vysilac-topolna-snizi-vyrazne-vykon-v-provozu-bude-jeste-dalsi-tri-roky/ have apparently been made already at or around this day. What has been announced as "changing the modulation parameters to save even more power" turns out as a now extremely hard dynamics compression. I already did not like the previous processing, which was essentially the same as in use on the mediumwave outlets, but what they now churn out really sounds like crap. And apparently the power has been considerably reduced. 50 km north of Dresden the signal is no longer usable, and an attempt at Dresden itself yielded little result in the noise floor of the big town at all. This provokes me to speculate if this is perhaps already no longer the DRV 750 gear but instead the announced 50 kW solid-state transmitter. One could think of a used transmitter that would fit, the one run from 1997 til 2000 at Burg (east of Magdeburg) on 261 kHz. This was a Transradio rig, this company already delivered Radiokomunikace with their TRAM series transmitters for smaller mediumwave outlets, thus this scenario does not appear to be far-fetched. One must raise the question what's the purpose of this modest power operation at all. On the press conference only parts of the Czech Republic itself have been mentioned as served areas anymore, even admitting that in western Bohemia the signal will already be pretty weak. But in this specified area there is no need for a longwave service at all. Radiozurnal has a full FM network, there are also no special broadcasts on 270 kHz whatsoever, it is merely the plain Radiozurnal feed from Astra 3B as also transmit on FM. At the press conference remarks had been made about the regulator not wanting to see the Czech Republic loosing this frequency. Thus I very much have the impression that the arrangement is not much more than a mere channel marker, by design of little real use. Kai
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