lunedì 28 Settembre 2020
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A New Era Begins for Brazilian Radio Broadcasting

A new era begins for Brazilian radio broadcasting with the arrival and installation of a first shortwave digital radio DRM transmitter developed and manufactured in the city of Porto Alegre by BT Transmitters. The transmitter will be sited at the public broadcaster (EBC) Rodeador Park, near the capital Brasilia, to be connected to one of the huge HF antennas of …

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Brazil: EBC to Install Shortwave DRM Transmitter

Empresa Brasil de Comunicação (EBC) has just added a shortwave DRM-capable transmitter to its Rodeador transmission park near Brasilia, the country’s capital. The public broadcaster will soon begin testing the 2.5 kW transmitter, designed and manufactured by BT Transmitters in Porto Alegre. According to the DRM consortium, the Brazilian-made sender will connect to one of EBC’s HF antennas to broadcast …

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New AIR DRM frequencies from tomorrow

With effect from tomorrow 1st Sept ’20 the AIR DRM stations on MW will operate in both Simulcast & Pure DRM mode on the same frequency ie – 9 kHz from the AM frequency. (At present DRM transmission in Simulcast mode is on +9 kHz and Pure DRM txn on same freq as AM.) Updated list MW frequency wise is …

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AIR changes DRM frequencies on MW

With effect from 1st Sept ’20, for the AIR stations listed in the attachment below (and others), DRM txns in both simulcast & pure drm mode will be on same frequency, – 9 kHz from the AM freq. At present DRM txn in simulcast mode is on +9 kHz and pure DRM txn on same freq as AM. Updated list …

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DRM Schedule of AIR Bengaluru

The new DRM test transmission schedule of AIR Bengaluru from 23 July 2020 is follows: 1000-1010 UTC 15410 kHz 1015-1025 UTC 15030 kHz 1030-1040 UTC 7550 kHz Reception reports to: copy to: (Thanks to Dr. DrThamminana Krushna Rao, Visakhapatnam) — Jose Jacob, VU2JOS

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Shortwave Radiogram, 28-31 May 2020: Olivia modes – slowest, slower, slow

I am not sure if I saw any advantage in last weekend’s Thor22 over our usual MFSK32, and not much over the much faster MFSK64. On my PC, the Thor22 performed poorly via WINB, but well via WRMI. There is something peculiar about WINB’s audio. The RSID’s don’t work (for me, anyway) and now the Thor22 doesn’t, either. But, via …

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Encompass Digital Media will be broadcasting the following special DRM transmissions on Thursday 13th February: (all times GMT) 11:00 – 12:00 Ascension to South America – 15580 kHz 12:00 – 13:00 Ascension to West Africa – 15400 kHz 14:00 – 15:00 Singapore to South Asia – 11895 kHz 15:30 – 16:30 Woofferton to Europe – 5790 kHz Programming will be …

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DRM Christmas specials on KTWR

We will be broadcasting DRM Christmas specials on Monday, Tuesday, and Wednesday, 23 to 25 December. There are five fifteen minute programs. All are in English. The programs will be as follows each day: 1024-1055 13800 kHz 1228-1243 7500 kHz May God bless you and give you peace this Christmas season! Steve Brunson KTWR Chief Engineer Agana, Guam”

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DAB digital radio sales reach 82 million worldwide

WorldDAB’s latest market report reveals that by the end of Q2 2019, over 82 million consumer and automotive DAB/DAB+ receivers had been sold in Europe and Asia Pacific – up from 71 million one year earlier.   Available to download as an infographic here, the new data published by WorldDAB gives a comprehensive overview of DAB receiver sales, road and population …

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Shortwave Radiogram, 28 November-1 December 2019

Last weekend’s experiment with Persian text was interesting and mostly successful. You can see a near perfect decode via an SDR in Kuwait (close to Iran) during the Sunday 2330-2400 UTC broadcast, 7780 kHz from WRMI Florida (12000 km). You can see Fldigi prints out the Persian right-to-left text by decoding from the videos and audio listed in the next …

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Shortwave Radiogram, 21-24 November 2019: Persian text via shortwave

Thanks to those you who participated in last weekend’s test of the low-but-robust modes Olivia 32-2000 and MFSk16. There were some examples of those two modes providing good decodes when the faster MFSK32 and MFSK64 showed errors. With the internet shutdown in Iran is in the news, this weekend Shortwave Radiogram will transmit an excerpt of Persian text, from a …

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Shortwave Radiogram, 14-17 November 2019

In the past few weeks, reception of Shortwave Radiogram has been challenging during some of the transmission in some parts of the world. For this reason, we will add two slow-but-robust modes — Olivia 32-2000 and MFSK16 — to our usual MFSK32 and MFSK64 for this weekend. Each will begin with the RSID more the mode, so make sure your …

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