Tag Archives: ABC

Radio Waves: Eugène Aisberg, Filter Design, ABC Workers Face Cuts, and Data via Web SDRs

Radio Waves: Stories Making Waves in the World of Broadcasting

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers. To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Paul, Marty, and Michael Bird for the following tips:

Eugène Aisberg, Radio Writer (OneTubeRadio.com)

After a wartime absence, the January 1946 issue of Radio Craft carried an article by writer Eugène Aisberg. While that name might not be familiar to American readers, Aisberg was a prolific author in the early days of radio, and wrote some of the best treatises on radio for the popular audience. He was fluent in French, Esperanto, German, Russian, and English.

Aisberg was born in Odessa, Ukraine, in 1905, and lived most of his life in France. He was the director of the French magazine Toute la Radio and a prolific author of a number of books. His most popular book, which is still in print, is La Radio? Mais c’est très simple (Radio? But It’s So Simple!) The book, currently in its 29th edition, an extremely solid background covering all aspects of electronics, and is written in a popular, easy-to-read style. While the book was ultimately translated into several languages, it was apparently never published in English.[…]

Filter Design Software (Nuts and Volts)

If you’ve ever lived close to an AM broadcast station, you probably experienced the phenomenon known as fundamental overload. It occurs when a receiving device is functioning entirely properly but unable to reject a strong signal. The receiver might be a wireless telephone, a scanner, or even a TV or radio receiver. The AM signal is completely legal but just too strong, disrupting the function of the receiver or overriding the desired programming.

[…]Hams often experience fundamental overload on the 160 meter band (1.8–2.0 MHz) which is adjacent to the AM broadcast (BC) band (550 kHz–1.7 MHz). Antennas for those frequencies pick up a lot of AM band RF, overloading the input circuits and creating distortion or false signals inside the receiver. The usual solution is to install a high-pass broadcast-reject filter at the receiver input, attenuating the unwanted AM signals below 1.6 MHz while passing the desired 160 meter signals with little attenuation.

So far, so good, but a filter that doesn’t attenuate signals very much above 1.8 MHz while attenuating them significantly in the adjacent broadcast band is not a simple thing to design. There are tables and equations, but they are tedious to work with. Practically, you’ll need to build the filter with standard-value components as well, and that will affect filter performance too. Sounds like a job for some filter design software, doesn’t it?

There are several filter design software packages ranging from simple calculators to sophisticated CAD programs. Luckily for hams and other experimenters, there are plenty of free or low-cost programs to try.[…]

ABC workers face anxious wait over job, program cuts (The Age)

David Anderson did not mince words at a Senate Estimates hearing last October. “There will be job losses,” ABC’s managing director warned. “It’s not something I can quantify at this point in time. There’s still more work to be done.”

Towards the end of March, Anderson will reveal a five-year plan for the national broadcaster. To the frustration of staff, it’s unlikely to specify which parts of the organisation will bear the brunt of these cuts or how many workers they might lose.

Several senior sources spoke about the situation at ABC on the condition of anonymity, given sensitive funding negotiations are yet to be finalised.

“All these media reports claiming the redundancy numbers will be finalised in March are just wrong,” says one ABC executive. “What we need is some clarity [about long-term resourcing] from the government.”[…]

Receiving Data With Web Based Shortwave Radios (Nuts and Volts)

Your computer and the Internet give you free access to over 100 web based shortwave receivers that you can use as if they were your own. Unfortunately, employing these radios to decode data transmissions can be very difficult or impossible — unless you know the secret. So, read on and we’ll guide you through the details of how to do it.

Web based shortwave radios are an amazing new implementation of software defined radios (SDR). These SDRs are free to use and widely available on the Internet. Even more remarkable is that they are located in countries all around the world.[…]

Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!

Spread the radio love

Radio Waves: RNZ Cuts Classical, Australian EmComm Plan, BBC Funding, and NHK Viewing Fees

1 Reply

Radio Waves: Stories Making Waves in the World of Broadcasting

Many thanks to SWLing Post contributors Troy Riedel and Michael Bird for the following tips:

RNZ set to cut back Concert and launch new youth service (Radio New Zealand)

In the biggest overhaul of its music services in years, RNZ is planning to cut back its classical music station RNZ Concert and replace it on FM radio with music for a younger audience as part of a new multimedia music brand. Mediawatch asks RNZ chief executive Paul Thompson and music content director Willy Macalister to explain the move.

The broadcaster is proposing to remove RNZ Concert from its FM frequencies and transform it into an automated non-stop music station which will stream online and play on AM radio.

It would be replaced on FM by a service aimed at a younger, more diverse audience as part of a new multimedia “music brand”.

RNZ Concert would be taken off FM radio on May 29 and the youth platform would be phased in ahead of its full launch on August 28.

RNZ’s music staff were informed about the proposed changes this morning in an emotional, occasionally heated meeting with the RNZ music content director Willy Macalister, head of radio and music David Allan, and chief executive Paul Thompson.[…]

[Australian] Senate to vote on National Emergency Communications Plan (ABC Friends)

Today Senators can vote to recognise and support ABC Emergency Broadcasting Services and start to plan for a National Emergency Communications Plan.

[…]The motion comes after ABC Friends surveyed bushfire affected communities, with 95% of the 750 respondents indicating that they wanted to see a national plan of additional essential communications infrastructure.

More information to come once the motion has been moved.[…]

UK government, at odds with media, eyes BBC funding change (AP)

LONDON (AP) — Britain’s government announced Wednesday it is considering a change in the way the BBC is funded that would severely dent the coffers of the nation’s public broadcaster.

Prime Minister Boris Johnson’s Conservative government — which is increasingly at odds with the country’s news media — said it would hold a “public consultation” on whether to stop charging people with a criminal offense if they don’t pay the annual levy that funds the BBC.

The broadcaster gets most of its money from a license fee paid by every television-owning household in the country, which currently stands at 154.50 pounds ($201) a year. Failing to pay can result in a fine or, in rare cases, a prison sentence.

In 2018, more than 121,000 people were convicted and fined for license fee evasion. Five people were imprisoned for not paying their fines.

The BBC is Britain’s largest media organization, producing news, sports and entertainment across multiple TV, radio and digital outlets. The BBC’s size and public funding annoy private-sector rivals, who argue the broadcaster has an unfair advantage.[…]

NHK Asked to Cut Viewing Fees Further (Jiji Press)

Tokyo, Feb. 5 (Jiji Press)–Japanese Internal Affairs and Communications Minister Sanae Takaichi asked Japan Broadcasting Corp. (NHK) on Wednesday to cut television-viewing fees further.
The request was included in a set of proposals compiled by Takaichi. The proposals were approved the same day at a meeting of the Radio Regulatory Council, which advises the minister.

After expected cabinet approval, the proposals will be submitted to the ongoing session of the Diet, Japan’s parliament, together with NHK’s fiscal 2020 draft budget.

The public broadcaster has already decided to cut viewing fees and expand the scope of fee exemptions by the end of fiscal 2020, in order to reduce viewers’ burdens by the equivalent of 6 pct of its fiscal 2018 fee revenue.[…]

Spread the radio love

Radio Waves: Sun Up-Close, Super NZ Public Broadcaster, One SDR, and ABC Emergency Broadcasting

Radio Waves: Stories Making Waves in the World of Radio

Many thanks to SWLing Post contributors, Paul Evans, Troy Riedel, Michael Bird, and Marty for the following tips:

Sun’s surface seen in remarkable new detail (BBC News)

Source: Daniel K Inouye Solar Telescope

Behold the Sun’s convulsing surface at a level of detail never seen before.

The Daniel K Inouye Solar Telescope on Hawaii has released pictures that show features as small as 30km across.

This is remarkable when set against the scale of our star, which has a diameter of about 1.4 million km (870,000 miles) and is 149 million km from Earth.

The cell-like structures are roughly the size of the US state of Texas. They are convecting masses of hot, excited gas, or plasma.

The bright centres are where this solar material is rising; the surrounding dark lanes are where plasma is cooling and sinking.[…]

The New Zealand Cabinet plans to create a new, super-sized public broadcaster (Asia-Pacific Broadcasting Union)

It is understood the NZ cabinet has signed off on a high-level decision to proceed and to commission a business case, after the Minister for Broadcasting, Kris Faafoi, presented a revised paper on Monday.

There was pushback from some senior Labour and New Zealand First ministers about the way the preferred option was landed on, the implications for public broadcasting if RNZ ceased to be a standalone company, and the speed at which it had been progressing.

The plan was to work towards having the new media company in place by about 2023 and that appears to still be the goal.

RNZ was told the amended proposal puts a specific emphasis on the fact the new company will be primarily a public service media outlet, and to ensure that is made crystal clear in any legislation, and through a charter.[…]

One SDR: A new website focusing on the basics of software defined radio

Good morning. I have been following SWLing over the years and it’s an amazing resource.

I’m writing from https://onesdr.com which is an Education website with articles that simplify Software-defined Radio. I write about practical aspects of SDR including associated components such as Low Noise Amplifiers, Filters, Bias Tees, etc. My goal is to demystify RF technology and make it more accessible to the growing community of SDR enthusiasts.

As well I have been contributing to several RF-related Wikipedia pages* to popularize RF and Wireless in general.

Interim Report of Survey of ABC Emergency Broadcasting in Bushfire Affected Communities (ABC Friends)

95% of respondents to ABC Friends’ Survey of ABC emergency broadcasting in bushfire affected communities believe there is a need for a national plan of additional essential communications infrastructure.

This devastating bushfire season attests to the ABC’s position as Australia’s pre-eminent emergency broadcaster. The number of ABC emergency broadcasts has risen from 256 in 2017-2018 to 371 in 2018-2019 to 673 to date this year (4 Jan). The ABC’s emergency broadcasts continue in the face of ongoing funding cuts and with no additional funding to cover the resources which have been poured into the effort.

On 3 January, via Facebook, ABC Friends National asked for feedback about the ABC’s emergency broadcasts from those affected by the bushfires. Whilst highly praised, there were reports that access to ABC broadcasts was sometimes a problem.

ABC Friends subsequent media release made an urgent call for the Federal Government to restore funding that guarantees infrastructure and transmission that is vital for emergency services broadcasting. It also advised of the launch of a survey (see appendix 1) to obtain more formal feedback about access to emergency broadcasts. This survey was delivered on 13 January via Facebook and via email through our membership and supporter base.

750 people responded to the survey.

91.1% of those surveyed said that the ABC local emergency broadcasts were important to them during the crisis.

96.1% of those surveyed said that ABC staff with local knowledge was important to them.

98.5% of those surveyed said that it was important to them that their local ABC outlet remain open and well-staffed.[…]

Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!

Spread the radio love

Now Unblocked: Watching the new Radio Australia documentary

2 Replies

Yesterday, we posted a note about the new documentary, “Australia Calling: 80 Years of International Broadcasting.” At the time, I mentioned that the video was geo-blocked–meaning, you could not watch the video outside Australia without using a VPN.

Many thanks to SWLing Post contributor, Peter Marks, who shares this great news:

I’ve corresponded with the iview team and they have un-geoblocked the video. It can be watched here:

https://iview.abc.net.au/show/australia-calling-80-years-of-international-broadcasting/video/NC1940H001S00

I tested it over a VPN to Singapore and it played for me.

Thanks so much, Peter! I’ve loaded the video with no problems here in North America.

Click here to watch “Australia Calling.”

Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!

Spread the radio love

Australia Calling: ABC documentary looking at the impact of Radio Australia

9 Replies

Many thanks to a number of SWLing Post contributors who contacted me about a new documentary focused on the impact of Radio Australia. Peter Marks writes:

The celebration of 80 years of international broadcasting from Australia continues. The ABC has published “Australia Calling: A look at 80 years of Radio Australia and ABC international broadcasting” today:

https://www.abc.net.au/news/2019-12-16/abc-celebrating-80-years-of-international-broadcasting/11783252

And tonight there’s a documentary being shown on TV.

There’s even a story about the making of that documentary here:

https://www.abc.net.au/news/about/backstory/news-coverage/2019-12-16/making-australia-calling-documentary/11795134

Thank you, Peter! I just started watching the documentary via ABC’s iView. ~~Note that the program is geo-blocked and not available outside of Australia (unless, like me, you have a good VPN).~~ [No longer geo-blocked! See update.]

Here’s a link to the documentary on iView:

https://iview.abc.net.au/show/australia-calling-80-years-of-international-broadcasting

Peter also shared a number of related stories–some of which we’ve published in the past:

Spread the radio love

ABC celebrates 80 years of international broadcasting

3 Replies

Geraldine Doogue (Photo by Peter Marks)

Many thanks to SWLing Post contributor, Peter Marks, who was recently invited to attend an ABC celebration. Peter wrote up a summary of the event on his blog:

80 years of international broadcasting by the ABC was celebrated this week at the headquarters in Ultimo, Sydney.

David Hua, ABC Head, International Strategy introduced the event.

Geraldine Doogue was the MC for the evening. She described the International division as “Taking Australian culture beyond its shores”. Doogue described ABC International as the very best of the ABC and said that the people who work in it have a sense of pride in Australia and work out how to present it to the world.

Ita Buttrose, ABC chair, said “The birth of Australia’s international broadcasting service came at a time of global upheaval, uncertainty and disruption. Australia seemed far removed from the epicentre of conflict in Europe, but the technology of cable and wireless brought the war in to living rooms across the country.”

As Ms Buttrose noted in her recent speech at the Lowy Institute, radio technology also gave Australia the opportunity to speak directly, for the first time, to its near neighbours, countering the propaganda and fake news of the day.

Click here to continue reading the full article on Peter’s blog.

Spread the radio love

New report: Review of Australian Broadcasting Services in the Asia Pacific

2 Replies

Many thanks to SWLing Post contributor, Peter Marks, who writes:

A report two years in the making has been released (actually it was a few days ago but there was no fanfare.

I’ve posted about it here: https://blog.marxy.org/2019/10/review-of-australian-broadcasting.html

An interesting conclusion in the report on page 128 is that the authors estimate that shortwave broadcasts to the Asia and Pacific by Australia have a net economic benefit since 2007-08 of $40.3 million.

Presumably this means it would make economic sense for Australia to get back in to Shortwave broadcasting like our clever Chinese neighbours.

Spread the radio love