Since 2002 every AM broadcaster in the United States is allowed to broadcast digitally by using HD Radio – a system that permits spreading to 3 thematic channels and provides services, such as the visualisation of songs’ or artists’ names (in addition to the analogue signal – still receivable by traditional receivers). However, this system can’t always be used; in fact, the digital signal occupies 40 kHz of the band – compared to the standard frequency range of 20 kHz – making digital broadcasting not possible if other radio stations are operatingon nearby frequencies.
Since listening to AM stations has become difficult due to the rising of radio electric interferences – caused by increasing proliferation of electronic devices- FCC is trying to promote and increase AM stations ratings by proposing broadcasters to switch to all digital broadcasting, meeting the standards set by the regulations (not exceeding 20 kHz) and thus minimising interferences. This is just one of the various initiatives taken by the American regulator almost one hundred years from the first radio transmission in the US: the Agency has also allowed the opening of some new broadcasting facilities.
Today, only one AM station is all digital
Today just one broadcaster in the US is allowed to operate all digital on AM. It is WWFD – a broadcaster from Frederick, Maryland (70 km from Washington). Since 16th July, 2019 this broadcaster – better known as The Gamut – transmits its digital-only AM signal on 820 kHz. Additionally, the station transmit its digital signal on 103.5 MHz in HD (a standard that allows to transmit up to four channels on the same frequency). Today -in the United States – 4,580 broadcaster are operating on AM and 10,850 on FM, divided in commercial (6,728) and non-commercial (4,122). In total there are 20,342 FM transmitters. You can find the complete list on FMList.
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With its 350 meters of height the Lotus Tower is the highest transmission structure in South Asia. The shape is inspired by the lotus flower, which in Sri Lankan culture symbolises purity: a thin, green stem with petals that change color thanks to a play of light. Under construction since 2012, it was opened on 16 September 2019 to ease a cost controversy ($ 104 million); the project was funded largely by the Chinese government within the scope of the Belt and Road project. The platform being 245 meters high, provides visitors with a panoramic view of the capital, Colombo.
Five floors of attractions and two of transmissions
The bud of the lotus flower conceals a seven-story structure: the first two host 35 FM radio stations, 50 TV stations broadcasting on DVB T2 and 20 telecommunication service providers. The other floors contain a museum, supermarkets, a revolving restaurant, banquet- & conference rooms and lastly a 1000-seat auditorium. The sixth floor is reserved for six exclusive suites.
Ransomware, a software that prevents the use of computers (by blocking them or encrypting files until you pay pirates a “ransom”), has paralysed the Cadena SER production system on November 4, 2019. To prevent risk of further infection, the computers connected to the network were turned off. However, since the Redacta platform (which assembles audio and text) could not be used, the journalists wrote the articles on sheets of paper or used word processing apps on their smartphones. Only after four days the 202 radio stations of the network were able to take up their work with their usual facilities again.
Services skipped, but no interruptions
Among the setbacks, the services on the MTV Awards, held in Seville the night before, were not broadcasted. On the other hand, radio hosts could provide a summary of an important electoral debate, by recording the audio from the TV (reduced quality). ‘El Confidential’ dedicated an extensive report on the emergency.
A restructuring plan “tears and blood” as announced by Deirdre Anne “Dee” Forbes, general director of the RTÉ (Raidió Teilifís Éireann). Over the next three years, cost-cuttings of up to 60 million euros are planned, including the stop of digital channel broadcasting only on DAB: RTÉ 2XM, RTÉ Pulse, RTÉ Gold, RTÉjr Radio and RTÉ Radio 1 Extra. The RTE director also called for legislative action to reduce the evasion of the radio and television license fee (estimated at 11%, with a loss of revenue of around 20 million euros). In recent years RTÉ had already reduced costs by 30%.
If the public radio will free the channels, there is a commercial radio enterprise looking to acquire them: According to Kevin Branigan, Chief executive officer of Radio Nova, they are interested in expanding coverage nationally. The Dublin broadcaster has a team of 40 people and is the only station of the capital, authorised to broadcast the signal within a radius of about 50 km to cover the country and the commuter belt.
The Malaysian Communications and Multimedia Commission, the Asian country’s media regulator, completed the switchover to digital terrestrial in October. In July, tests were carried out on the island of Langawki, in September it was the turn of the central and southern regions, followed by the northern and eastern regions mid-October while in Sabah and Sarawak the transition was completed on the 31st of October 2019.
15 TV and 6 Radio channels
On the myFreview Digital TV platform, 15 TV and six radio channels of Radio Televisyen Malaysia (RTM), Media Prima, TV AlHijrah and Bernama News Channel (BNC) are available. Malaysia is the third Asian country to have completed the transition to digital TV, after Singapore and Brunei.