Tuesday, February 21, 2017

Radio Oomrang special transmission on 21st Feb 2017

Radio Oomrang annual transmission

1600-1659 UTC on 15215 kHz via ISS 500 kW / 300 deg to E/NAm Frisian dialect, German & English on Tuesday, February 21, 2017.

Radio Oomrang broadcasts once in a year on shortwave in lower German language via facilities of Media Broadcast in Germany. Radio Oomrang announces as "The Free Voice of Frisian People from Amrum island in Germany". Station ID is in english.

About Oomrang :

AirSpy HF+ specs unveiled...

This will be a game-changer from Youssef (Airspy, SDR#), outstanding performance at a low price. SDR Console support – of course.

Preliminary specs:

RX range: 0 .. 30 MHz (HF) and 60 - 270 MHz (+)
Architecture: Hybrid (Direct conversion + DDC) using 2 x sigma delta ADC's @ 36 MSPS
Front end: Tracking Filters (all bands), High Dynamic Range LNA's and Mixers
AGC: Smart AGC controlled by the DSP
DSP: CIC, CFIR and a final (programmable) channel FIR - 18bit resolution
Final bandwidth/resolution after DDC: 18bit @ 600kHz - Scaled and streamed as 16bit
Image rejection: better than 120dBc
Blocking DR: 108 dB
Separate HF and VHF RF inputs - with option to use one multiplexed input if desired
USB 2.0 with Plug and play - No drivers needed
The RF section resides inside a metal shield
Aluminium enclosure about 60 x 100 x 15 mm^3

Basically, this addresses the lack of affordable and good performing receivers for HF and VHF.

Target price  < $200

Simon Brown, G4ELI

(Via sdr-radio.com list)

2 x 36MSPS IQ (equivalent to direct sampling at 72 MSPS) gives roughly 36 MHz of bandwidth, however the ADC's used are sigma-delta with intrinsic anti-alias filtering.

We start with 16bit IQ at 36MSPS then it is frequency translated and decimated to 744.192 ksps 18bit IQ with a bit more than 600 kHz bandwidth plus the digital filter roll off. Given the very nature of sigma delta ADC's, the pressure on the front-end filtering is relaxed and the tracking filters are even more effective.

The image rejection is performed using a newly designed algorithm that matches the performance of the hardware.

All the decimation number crunching happens in the device like in most high end DDC receivers, so we only need a small USB throughput in the end (~23Mbps), and the CPU usage in the PC is very low.

Performance wise, the result is comparable to things like Perseus, RFSPACE, Elad, etc. but with a more modern full CMOS sensitive front end and at a fraction of the price.

Hopefully, this will redefine the word "performance" for most Hams and SWLs ;-)

(Youssef via sdr-radio.com list )

Days of the radio

Nostalgia' is probably the first word we associate with 'radio'. A 5-minute break from the hassles of Friday traffic, a request show and a song for your lover, or that catchy jingle simply refusing to erase itself from memory – these are what make radio, RADIO!

So tune in and stay tuned...the transmission begins now...

(The Daily Star, Bangladesh)

RTÉ longwave 252 set to continue until at least 2019 after positive talks

RTÉ are set to continue transmitting their longwave 252 service until at least 2019 after positive talks took place at a consultative meeting in London.

Full story at :

Wednesday, February 15, 2017

Loving radio in the internet age

Paul Fernandes| TNN | Updated: Feb 13, 2017, 02.24 PM IST

A few radio enthusiasts nostalgic about the glorious days when their short-wave radio sets shaped their lives debated at an interactive session on myriad ways to revive the medium. "Radio programmes can be aired to listeners at Goa's bus stands, markets, parks and beaches. Educational institutions and NGOs can use radio to highlight social issues," Roland Martins, coordinator of Friday Balcao, the fortnightly discussion event said.

Full story at :

Radio rules imagination !

Celebrating World Radio Day 2017 -by F.Sheheryar, DG,AIR

When Neil Diamond crooned "reaching out, touching me, touching you" in that iconic song Sweet Caroline, he could as well be singing about radio. Radio, which reaches out across seemingly insurmountable geographical divides, touches countless lives and yet remains in the background. 

It was to honour this radio that the United Nations proclaimed 13 February as World Radio Day in 2011, with the vision of celebrating how it helps shape our lives.

Read the full article at :

The Magic of Radio

Fifty-six AIR FM transmitters to be upgraded in 12th Plan

NEW DELHI: With All India Radio putting all its important channels on FM to make them more accessible, a total of fifty-six FM transmitters are to be upgraded to ensure better reception covering a larger area.

Minister of State for Information and Broadcasting Rajyavardhan Rathore has told Parliament that the upgradation of these transmitters has been approved under the Twelfth Plan.

Source/Full story at :

Thursday, February 09, 2017

Radio Pulpit 657AM releases results of its digital trial

Radio Pulpit 657 AM, which began its trial of Digital Radio Mondiale (DRM30) medium wave (digital radio) in 2014, has released its results on broadcast quality.

The station made history by leading the South African radio broadcasting industry into the digital era with the first live digital medium wave broadcast. It transmitted the DRM30 trial broadcast from Pretoria during the period September 2014 up to October 2015, with support from Broadcom International and Sentech. DRM30 measurements were conducted successfully on 1440 kHz, using a 10 kW DRM30 transmitter with the purpose of presenting test results to ICASA.

More info about trials at : http://www.drmsa.org/index.php/about/trials

Thursday, February 02, 2017

Hyundai Mobis & NXP India Deploy DRM Chips and Receivers Designed in India

The development and deployment, showcased at a DRM Round Table conference on January 31, was made possible by a regional collaboration between All India Radio, NXP Semiconductors, Hyundai Mobis, and the DRM Consortium.

NXP Semiconductors, the world's largest supplier of automotive semiconductors and Hyundai Mobis, the world's leading tier-1 automotive supplier, have announced the successful completion of field trials of MOBIS DRM receivers and NXP chips designed in India. The chips and DRM receivers are now deployed in DRM-fitted car infotainment receivers in a newly launched vehicle in India by a leading carmaker.

Read the full story at :

Norway: Initial Listener Reactions to FM Shutdown Aren't Positive

But dyed-in-the-wool FM holdouts have quite a few options for tuning in to FM radio

Read more at :

Wednesday, February 01, 2017

Nautel to Provide 30 FM Transmitters to Turkey

January 17, 2017 – Nautel Limited has announced that it will supply thirty 5 kW NVLT FM transmitters to Turkish Radio-Television Corporation (TRT) over the coming months, with an option to purchase 9 additional transmitters if needed. The transmitters will be deployed at key locations throughout Turkey.

Based in Ankara, TRT provides one local, five regional and four national radio services as well as 6 AM Radio broadcasts. Additionally, Voice of Turkey provides shortwave programming in 32 languages. TRT radio is available on internet, satellite and cable as well as terrestrial services.

The Nautel NVLT transmitters incorporate the company's field-proven, high-power architecture into a compact footprint. With 72% typical efficiency, NVLT transmitters incorporate Nautel's award winning Advanced User Interface (AUI) as well as a suite of operational features including onboard direct-to-channel digital exciter, IP and streaming audio input ability, advanced scheduling capabilities, instrument-grade spectrum analyzer, optional onboard Orban processing and more..

"Turkey's radio infrastructure is already one of the best in the world, and we selected Nautel for this project because they have the tools we need to further enhance our broadcast capabilities," said Yuksel Solyu, Procurement Manager at TRT. "The ease of remote management via the Nautel AUI, which will be done from our headquarters in Ankara, coupled with the transmitters' high efficiency and reputation for reliability, will help TRT keep operating costs at a minimum while providing the coverage we desire."

Nautel has worked closely with TRT over the years on Turkey's Radio broadcast infrastructure. In 2009, Nautel was awarded a tender for 133 FM transmitters ranging from 1 kW to 20 kW. Nautel also supplied three 300kW MW transmitters to TRT in 2008-2009. The 136 digital-capable transmitters were used to modernize a large portion of Turkey's national FM Radio infrastructure.

"We are honored that TRT has again chosen Nautel for a high-profile project," said Wendell Lonergan, Head of Broadcast Sales at Nautel. "We are pleased to partner with TRT as they continue modernizing their infrastructure."

Nautel will demonstrate its industry-leading innovations including FM transmitters at CABSAT in Dubai, Stand A1-42, in March 2017 and at NAB, Booth N8324 in April.

About Nautel
Nautel is one of the world's largest manufacturers of broadcast transmitters. With more than 14,000 transmitters deployed in over 177 countries since 1970 and more than 6,500 deployments of AUI-enabled transmitters, Nautel continues to lead the way in providing valuable new solutions for digital broadcasting and other applications.

(Press Release)

Voice of America Celebrates 75 Years

WASHINGTON D.C., February 1, 2017 -- Today the Voice of America (VOA) celebrates 75 years on the air.  From its first 15-minute radio broadcast in German in 1942, VOA has grown into a multimedia international broadcast service providing programming and content in 47 languages on multiple platforms, including radio, television, and mobile.

On that first broadcast, announcer William Harlan Hale set the standard for all future VOA programs when he told his audience: "We bring you Voices from America. Today, and daily from now on, we shall speak to you about America and the war. The news may be good for us. The news may be bad. But we shall tell you the truth."

Today those words carry the weight of the VOA Charter that requires VOA, by law, to "serve as a consistently reliable and authoritative source of news." What's more, VOA news must "be accurate, objective, and comprehensive."

"It's been 75 years since we first began broadcasting objective news and information around the world," said VOA Director Amanda Bennett. "And now, I think what we do here is more important than ever."

Over the years, VOA correspondents and freelance reporters in many parts of the world have been on the scene to cover major world events. In 1989, VOA East European correspondent Jolyon Naegele reported on demonstrations in Czechoslovakia and the fall of the communist government. That same year on the other side of the world, VOA increased programming and added staff to its Beijing bureau, to cover the demonstrations in Tiananmen Square. VOA Beijing Bureau Chief Al Pessin was expelled from China for his reporting.

Today VOA broadcasters use television and radio studios at its headquarters in Washington, D.C. to broadcast news and other programming through 2,500 television and radio affiliate stations around the world. At the same time, they provide content for mobile devices and interact with their audiences through social media. In 2016, the Voice of America's weekly audience across all platforms averaged more than 236 million people worldwide. Click here for more information on Voice of America's 75 years of history and here for a short video on its history.

VOA reaches a global weekly audience of more than 236 million people in over 40 languages. VOA programs are delivered on satellite, cable, shortwave, FM, medium wave, streaming audio and video on more than 2,500 media outlets worldwide. It is funded by the U.S. Congress through the Broadcasting Board of Governors.

(Press Release)

Tuesday, January 31, 2017

Digital Radio Technology empowers listeners with wide range of services:Shri Venkaiah Naidu

Digital Radio platform to promote Digital and Connectivity revolution in the Country 
Minister Inaugurates Digital Radio Round Table Conference

Shri M Venkaiah Naidu, Minister for Information & Broadcasting has said that Digital Radio provided a unique opportunity for all the stakeholders both public and private broadcasters to carry forward the vision of Hon'ble Prime Minister to achieve Digital and Connectivity Revolution in the Country. Digital Radio technology would provide listeners with significantly improved audio quality and service reliability at an affordable price. The Minister mentioned this during his address at the Digital Radio for All Round Table Conference organised by Digital Radio Mondiale (DRM) along with Broadcast Engineering Consultants India Limited (BECIL) here today.

Elaborating further, Shri Naidu said that it was an opportune moment for automotive manufacturers and retailers to incorporate Digital Radio systems in vehicles that provided consumers with significantly improved audio quality and service reliability at an affordable price. This would enable the scaling up and adoption of this new Digital Technology. The Digital Radio provides benefits to
all the stakeholders, including Listeners, Manufacturers, Broadcasters and Regulators.
Regarding achievements of All India Radio in adopting Digital Radio Technology, Shri Naidu mentioned that All India Radio has already completed the technical installation and upgradation of 37 powerful transmitters in the first phase of Digitization of Radio Broadcast, a project unparalleled in the world today. This would ensure reduced electric power consumption for all digital transmissions, saving All India Radio and taxpayers significant transmission cost in the future. He added that All India Radio has re-invented itself through its Digital Transmitters based on the International ITU standard Digital Radio Mondiale (DRM).

Emphasizing on the need for the Traffic advisory services on National Highways, Shri Naidu said that the next phase of this service through AIR FM Transmitters needs to be digitised based on the ITU standards to exploit its full potential. The service would offer multiple radio program, detailed and multi-lingual on-demand traffic and travel information and emergency warning services.

From the Listeners perspective the Digital Transmission would provide Crystal clear and better-than-FM sound quality, enhanced program choice, free access to textual news, sports, travel and weather
information from the Internet in many languages simultaneously and would enable the transmission of emergency warning for immediately alerting the population in case of pending disasters.

From a commercial perspective, the system provides audiences with receivers at an affordable price as well as an attractive package of benefits which include wider range of services, easier tuning and selection of programming, improved stereo and surround sound in cars amongst others.
From a technical perspective, a key and a revolutionary feature of DRM is the ability to select from a range of Transmission Modes. This allows the Broadcaster to balance or exchange bit-rate capacity, signal robustness, transmission power and coverage. The DRM broadcasting system is specifically designed to allow the new digital transmission to co-exist with the current analogue broadcasts.

Key Benefits of DRM

· Excellent quality sound in stereo
· Data such as text and pictures
· Easy tuning on station name

· Replace receivers with new digital receivers
· Increase the market potential
· Increase possibilities for new areas of interest and content

· Multilingual Program
· Reduced power consumption of upto 40-50%
· Increased opportunity for revenue generation streams

· Uses less spectrum
· An International standard
· Green Broadcasting- Low power cost
· Emergency warning alert

Press Information Bureau
Government of India
Ministry of Information &amp; Broadcasting
31-January-2017 12:43 IST

Monday, January 30, 2017

Radio Pakistan starts work on converting transmission to DRM+ technology

Radio Pakistan has started work on converting its transmission to state-of- the art DRM Plus technology to make its broadcasts clearer and cost-effective.

Director General, Radio Pakistan Khurshid Malik visited the project at Broadcasting House in Islamabad today where he was briefed about progress on introducing DRM Plus technology.
He was informed that this technology enhances quality of broadcasts to perfection.

The present AM and FM transmitters of Radio Pakistan can be made compatible to this technology with little amendment.

Under this technology, three channels can be aired from a single transmitter, which will prove cost-effective. This technology enables listeners to get access to text services as well. Khurshid Malik emphasized the need of improving contents of programmes besides introducing modern technology to cater the need of all segments of society.

(Press Release)