My shack layout 2015

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My shack layout 2015

March 05, 2015

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5 March 2015

12 October 2012

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Boden Fortress - A long time secret place in Sweden

During the first world war the secret Boden Fortress was completed with its five very huge forts blasted into mountains surrounding Boden city in northern Sweden. They all were abunded as late as in 1998. The Rödberget fort is now a major tourist attraction in Boden. Björn, SM0YUZ knows a lot of these places and he took me on a guided tour to some of them. Many photos can be seen here (sorry text in Swedish) and here you can read the fascinating story of Boden Fortress. Björn, SM0YUZ standing in front of the huge Stora Åberget fort. The ugly Radiobunkern in Boden Fortress is a historical site as it was from here in 1921 the first public broadcast programmes in Sweden were transmitted. Link to an article in a Swedish newspaper.

Receivers at IFA 2009 in Berlin

In 1992, when the HD-Divine project showed the first digital terrestrial transmissions in Europe at IBC in Amsterdam, the HDTV receiver was really huge. It consisted of a couple of fully loaded 19" racks and consumed some kilowatts. Some people argued with Östen Mäkitalo , the project leader, that it would not be possible to shrink down the receiver to an acceptable size. The cool answer from Östen was: According to Moore´s law it is possible. And so it became. For some years DVB-T receivers in USB sticks and as well as complete handheld receivers are on the market. At IFA several companies showed small DVB-T receivers. The Asuka SK700 dual tuner diversity DVB-T receiver, see photo above, has a 7" touch (!) screen and can record (PVR) on memory cards. The Egoman company sells a 3.5" screen diversity receiver, MT801RSTX-43. This very small handheld receiver has PVR functions and DAB receiving capability! The Asuka company showed a DVB-T car receiver module w

Receiving Japan on 50 MHz

On June 22, 2018 06:39 UTC SM2EKM (in KP05uw) was heard by JA6JWJ calling CQDX on 50.099 MHz. I live nearby (KP05vs) SM2EKM and in the video clip you can se the announcement on DX.Heat.com and hear him calling CQ. I could not hear any JA station. My receiving antenna is a military surplus vertical antenna 30-60 MHz. Receiver is the Icom IC-7610 transceiver. Received JA-stations with WSJT FT8 software. Interface IC-7610 loudspeaker >>> PC microphone.

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