Tag Archives: RFI

Off the Shortwaves: Unhappy & Despondent

Guest Post by Troy Riedel

Every radio enthusiast or ham operator knows this definition – something we all dread.  Electromagnetic interference – also known as radio-frequency interference when in the radio frequency spectrum – is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction (Source: Wikipedia).

I’ve been “off the shortwaves” (in fact, off ALL bands!) for a few weeks (a reminder to those who do not remember – I’m an SWL’er, I’m not a ham operator so I’m a listener only).  Here’s my story:

My house was built in 2004 thus the home’s electrical is “modern era”.  I’ve never, ever had a significant problem with RFI … except when the dishwasher is running (if it’s running, I have ZERO reception).

I didn’t want this (I acquiesced only in an attempt to become grandfather of the year), but an in-ground (vinyl liner) pool has been installed in my backyard (yeah, I’ve probably lost everyone’s sympathy with this statement).  If it’s any consolation, construction started long before the summer and won’t be fully completed until [hopefully] next Spring (and what’s left of my yard is a disaster zone and something that will cost a fortune to mitigate – maybe I’ve gained back just a little bit of sympathy?).

Pools are required to be bonded (the process by which the electrical and metallic components of the pool are joined together with a wire to form a non-resistive path between the components. The goal of bonding is to connect, contain and prevent the transmission of any harmful electrical voltage to pool equipment, people and pets).

I’m not an electrician, but essentially the pool is grounded by a copper wire … and a copper wire “ring” encircles the pool (now covered by the concrete pool deck).  The copper wire runs underground and resurfaces where the pump & filter are installed.  That copper bonding/grounding connects to the remote master switch at the pump & filter (pictured here – note where the copper line connects to and grounds the unit):

Electrical power line(s) run underground from the pump/filter area until resurfacing just outside the garage wall where they enter my home’s main breaker box inside the garage.

There is an unfinished electrical component.  A conduit was installed to add a pool light when the project is completed next Spring (see below), but at this point there’s nothing connected thus a “pool light” is not yet present.

Throughout the dig, installation of the steel walls, pouring the concrete bottom & steps, liner installation, the bonding, and covering the bonding “ring” with the concrete pool deck – all of this had zero negative effects on my SWLing.

Once the pool electrician connected power (connected the pump/filter) to the house, ALL radio bands were knocked out due to very extreme RFI.  All bands – the complete spectrum (choose your letters … AM/MW, FM, SW, VHF, UHF – all bands).

I’ve easily spent double-digit hours trying to isolate the EMI.  This is what I’ve done & discovered:

(1) Disconnected the pool grounding: no effect.

(2) [Only] Powered-off the two main breakers for the pool pump & filter: no effect (the pool equipment was tested, then the pool was winterized so nothing has been running).

(3) We used a handheld EMI detector over every inch of the interior and exterior of the house.  Yes, there are sources but nothing to the level that should cause a radio blackout.

(4) Turned off the main breaker, all power to the house: this is the only thing that eliminated the EMI/RFI.

(5) Multiple times, I’ve painstakingly turned-on one breaker at a time (isolating each circuit, on/off then proceeding to the next breaker).  I’ve found that for whatever reason, extreme RFI returns (and is present) on these three circuits: (upstairs) Master Bedroom (my Listening Post), the other upstairs bedrooms (combined on another circuit), and the (downstairs) Family Room circuit.  Note: Even if everything is unplugged on one of these circuits, just turning on the breaker introduces the extreme RFI (thus it must be coming from the breaker & not introduced from a device plugged-in).  Ferrite chokes have been installed on nearly everything plugged-in to outlets on the three “trouble” circuits.  I’m not saying the house was an RFI-free zone before the pool – but these three circuits only produced light-to-manageable RFI prior to the pool equipment being connected to the house’s main breaker box.  After 6000+ days of living in this house with no significant RFI issues, I’ve been in a complete radio blackout with very extreme RFI since the moment the live electrical line was connected between my pool pump/filter and my main breaker box.

And before you ask: No, there have not been any new electronics, no new devices, no new appliances, no LED lights, and all big screen TVs and other notorious RFI unfriendly devices are unplugged – nothing new has been plugged-in or added to the household except for the pool equipment.  There have been no new utilities in my area that could have caused a coincidental problem (no DSL, no fiber optic – nothing).  I cannot see how this situ could be caused by a neighbor, because the problem ceases when my power is off.  And “no”, I can’t move my Listening Post because even though the majority of the RFI is introduced over those three circuits, the entire house is impacted and it’s a complete radio blackout.

To reiterate, I had no radio-related problems during the entire construction (I listened to my radios as I pleased) and the problem did not start until the pool’s electrical line was connected to the main breaker.

Could the new wiring – at/inside the breaker box – be improperly shielded?  Could something be touching(?) that shouldn’t be?  Could something be loose inside the breaker box?  The three circuit breakers that are introducing the extreme RFI are in close proximity to each other in the breaker box and in close proximity to the two new pool breakers – could there be contamination from one to another?

I don’t make it a habit to play with electricity.  The pool company could frankly care less about my radio woes (it’s my problem, not theirs).  My power company supposedly checked their utility line coming into my house (I didn’t see them here, but they said the problem is not on their end).   And local electricians all essentially say, “[from their prospective] EMI sources are hard – if not impossible – to find”.

I have an electrician lined-up but we both thought it might be best to “put this out there” because someone may have an idea that he hasn’t thought of. Thus far, I’ve done almost everything myself that they stated they would do (minus opening-up the breaker box).  I’m hoping to solicit ideas from the SWLing Post Nation before I put the electrician on the clock.  And on the clock = $$$.

Thanks in advance for your input.  If I can’t get this mitigated, a liquidation event may be in my future.

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Radio Waves: Broadcast v Ham Radio, Marjorie Stetson’s Secret Wartime Work, Czech Republic MW Switch-Off, and PV RFI

Radio Waves:  Stories Making Waves in the World of Radio

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!


Alike, but Not Alike: Broadcast vs. Ham Radio (Radio World)

Experience in amateur radio can be a boon to the radio engineer

Starting in the 1920s and through the ’60s, almost every broadcast engineer was a licensed amateur radio operator. That has changed a bit, but the importance of being a ham has not.

Both environments involve getting an RF signal from Point A to Point B. But it is interesting to note that radio broadcast and amateur radio are similar and yet so different.

For those who don’t know much about ham radio, I’ll tell you that communicating locally or internationally, via licensed amateur radio, can be a fascinating and challenging hobby. There are about 700,000 hams in the U.S. and an equal number worldwide.

Physics

Broadcast and amateur radio operate under the same laws of science. Transmitters, transmission lines, antennas and receivers make up an RF path to convey a message.

Broadcast engineers know that signal propagation on AM and FM bands is dramatically different. It is because our FM band is roughly 100 times the frequency and 1/100th the RF wavelength of that on the AM band. Engineers also know that 950 MHz STL signals are line-of-sight and roughly a 10-times jump in frequency from FM broadcast frequencies. Each band has its own challenges in getting a useable signal through. [Continue reading…]

A Canadian opens up about her secret wartime work — eavesdropping on Japan (CBC)

Retired sergeant remembers what it was like on the ‘front line of the radio war’

At age 97, Marjorie Stetson has never told anyone her secret code number — until now.

That’s the identity code — 225 — that she typed on every page of her highly classified work for the Canadian Armed Forces during the Second World War.

The retired sergeant’s wartime work was so covert, she said, she had to sign 15 separate copies of Canada’s Official Secrets Act.

“Nobody knew where I worked,” Stetson told CBC News from her home in Massachusetts ahead of Remembrance Day. “Nobody knew what we did. Even my parents never knew what I did in the service.”

Her husband, an American sailor she met at a celebration marking the end of the war, passed away a decade ago. She never told him what she really did during the war.

Today, Stetson herself is only now learning about the true scope of her role and the significance of all those sheets of white paper she filled with encrypted messages from Japan. [Continue reading…]

Czech Republic: MW Switch-Off by 2021 (Radio Reporter)

Czech public radio ‘?eský Rozhlas‘ is stepping up its information campaign for listeners receiving mediumwave programmes, ahead of the planned switch-off of transmitters by the end of 2021. Since 1 November, more announcements have been broadcast to warn users and a call centre has been set up to explain the possible listening alternatives (from FM to DAB). In the run-up to Christmas, public radio will launch an intensive advertising campaign in the print media and online magazines on 22 November to promote the purchase of digital DAB receivers to replace analogue radio. [Continue reading…]

The impact of photovoltaics (Southgate ARC)

Seamus Ei8EP reports on the IARU Region 1 website that the 358 page Final Report on the Study on the evaluation of the Electromagnetic Compatibility Directive has now been published.

It is publicly available, free of charge, from the Publications Office of the European Union. The Political Relations Committee of the IARU Region 1 responded recently to a European Commission Roadmap on the environmental impact of photovoltaics.

The radio spectrum is an important finite natural resource which must be protected. While PV technology of itself is to be welcomed, the IARU submission pointed out the inherent problems of non-compliant installations, particularly the installation or retro-fitting of optimisers which can produce significant spectrum pollution for very limited efficiency increase.


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Radio Waves: Extreme 2001 Geo Storm, Media Ownership Rules Loosened, Germany Bans RFI-Spewing Device, Blue Jays Radio, and L-Band Patch Antenna Review

Radio Waves:  Stories Making Waves in the World of Radio

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 Troy Riedel, Dave Zantow, NT, Wilbur Forcier, and Rob for the following tips:


20 Years Ago, An Extreme Geomagnetic Storm (Spaceweather.com)

Unlike today’s blank sun, the solar disk 20 years ago was peppered with sunspots, including a monster named “AR9393.” The biggest sunspot of Solar Cycle 23, AR9393 was a truly impressive sight, visible to the naked eye at sunset and crackling with X-class solar flares.

On March 29, 2001, AR9393 hurled a pair of CMEs directly toward Earth. The first one struck during the early hours of March 31, 2001. The leading edge of the shock front was dense (~150 protons/cc) and strongly magnetized — traits that give rise to powerful geomagnetic disturbances. Within hours, an extreme geomagnetic storm was underway, registering the maximum value of G5 on NOAA storm scales.

“I was fortunate to witness and photograph the event when I was just a teenager,” recalls Lukasz Gornisiewicz, who watched the show from Medicine Hat, Alberta:

In the hours that followed, Northern Lights spread as far south as Mexico. In 20 year old notes, Dr. Tony Phillips of Spaceweather.com describes “red and green auroras dancing for hours” over the Sierra Nevada mountains of California at latitude +37 degrees. Similar displays were seen in Houston, Texas; Denver Colorado; and San Diego, California.

“Here in Payson, Arizona, red curtains and green streamers were pulsating all across the sky,” wrote Dawn Schur when she submitted this picture to Spaceweather.com 20 years ago:

“We have seen some auroras here before, but this display was really special,” she wrote.

A second CME struck at ~2200 UT on March 31th. Instead of firing up the storm, however, the impact quenched it. When the CME passed Earth the interplanetary magnetic field surrounding our planet suddenly turned north — an unfavorable direction for geomagnetic activity.

Indeed, the quenching action of the second CME may have saved power grids and other technological systems from damage. The storm’s intensity (-Dst=367 nT) stopped just short of the famous March 14, 1989, event that caused the Quebec Blackout (-Dst=565 nT) and it was only a fraction of the powerful Carrington Event of 1859 (-Dst=~900 nT).

The whole episode lasted barely 24 hours, brief but intense. Visit Spaceweather.com archives for March 30, 31st and April 1, 2001, to re-live the event. Our photo gallery from 20 years ago is a must-see; almost all the pictures were taken on film! [Read more at Spaceweather.com…]

U.S. Supreme Court permits FCC to loosen media ownership rules (Reuters.com)

WASHINGTON (Reuters) -The U.S. Supreme Court on Thursday allowed the Federal Communication Commission to loosen local media ownership restrictions, handing a victory to broadcasters in a ruling that could facilitate industry consolidation as consumers increasingly move online.

In a 9-0 ruling authored by Justice Brett Kavanaugh, the justices overturned a lower court decision that had blocked the FCC’s repeal of some media ownership regulations in 2017 for failing to consider the effects on ownership by racial minorities and women. Critics of the industry have said further consolidation could limit media choices for consumers.

The justices acted in appeals by the FCC, companies including News Corp, Fox Corp and Sinclair Broadcast Group Inc and the National Association of Broadcasters.

The associations for other broadcast networks’ local affiliates, including ABC, NBC and CBS, backed the appeals, arguing that consolidation would help ensure the economic survival of local television amid heavy competition from internet companies that provide video content. Broadcast television stations have said they are increasingly losing advertising dollars to digital platforms.[]

Germany bans ‘water vitalizer’ over radio interference (AP News)

BERLIN (AP) — German authorities on Friday banned the sale and use of a New Age ‘water vitalizer’ device amid concerns that it is interfering with amateur radio signals.

The Federal Network Agency said it had received numerous reports that the device, sold by Swiss company Wassermatrix AG as a way to “activate” the body’s self-healing powers, was transmitting on the frequencies allocated for ham radio users.

The agency said owners of the 8,000-euro ($9,540) device, which has been sold more than 2,400 times in Germany, are allowed to keep but not use it.

Wassermatrix AG didn’t immediately respond to a request for comment.[]

Rush’s Geddy Lee is unhappy about lack of Blue Jays radio for 2021 (Yahoo Sports Canada)

Canadian rock star Geddy Lee is less than thrilled with Sportsnet’s decision to cut their dedicated radio broadcast of the Toronto Blue Jays for the 2021 season.

Sportsnet won’t directly broadcast a separate radio feed and will instead simulcast their television broadcast over the airwaves for the 2021 season, becoming the first MLB team to do so. The decision was made to minimize travel and closely adhere to team, league, and government protocols related to the pandemic, Sportsnet said in a press release.

Lee, the lead singer for Rush, spoke about the importance of preserving a radio feed during an interview earlier in March.

Lee has been avid Blue Jays fan for years, throwing out the first pitch during the 2013 Blue Jays opener, and was a regular attendee at home games for decades.

It would be easy enough to spin this into “old man yells at cloud” in defence of a slightly outdated medium, but the sports media business is tough enough as it is, and the radio broadcast does indeed have charms that television simply can’t replicate, which is especially important for the visually impaired.[]

L-Band Patch Antenna review (Frugal Radio via YouTube)


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Guest Post: Indoor Noise and Ferrites, Part1

Many thanks to SWLing Post contributor, TomL, who shares the following guest post:


Indoor Noise and Ferrites, Part 1

by TomL

My magnet wire loop antenna on the porch reminded me to revisit aspects about my noisy Condo that I still needed to understand.  Some RF noise I could control if I could find the right kind of information that is understandable to a non-engineer like me.  There is a lot written about the general problem of noise and radio listening, for instance this ARRL article with web links to research – www.arrl.org/radio-frequency-interference-rfi, but I needed to get more specific about my particular environment.

I had tried some common clamp-on TDK ferrites I had obtained from eBay a long time ago but they only seemed to work a little bit.  I have since found out these are probably the ones which are widely used on home stereo system connections used to reduce noise on those systems.  There must be a better way.

The more I researched topics, like a portable “Loop on Ground” antenna, or, using RF chokes on the magnet wire loop, it dawned on my feeble, misguided brain that I was wrongly thinking about how to use ferrite material.  For one thing, the material used to suppress RF noise is made with a certain “mix” of elements, like Manganese-Zinc, that electrically “resists” a specified frequency range.  Fair-Rite has a useful Material Data Sheets web page which lists the Types of ferrite material.  For dealing with noise (at the Source causing the problem), I needed to use the right kind of “Suppression” materials and proper placement.  So, it (partly) made sense why the TDK snap-on ferrites might not fully work to reduce certain noise coming from my computer screens, LED lights, USB devices, and cheap Chinese-made power adapters.

A very good  paper is by Jim Brown (K9YC) of Audio Systems Group entitled, “Understanding How Ferrites Can Prevent and Eliminate RF Interference to Audio Systems [PDF]”.  There is a longer paper speaking directly to Amateur Radio folks, but the Audio version is simpler and it uses some of the same  graphs and ideas.  I was drawn to the very detailed Impedance measurements of many different “Types” of ferrite material used for different noise mitigation.  I remember the traumatic pain of my college experience trying mightily to understand the Van Vlack Materials Science text book to no avail.  But Jim’s paper reminded me of the importance of using the correct type of ferrite material and in an optimal way that reacts favorably in the target frequency range to solve a particular noise problem.  So, what are my problem areas?

Shortwave Noise

Loop antennas have been what I have experimented with the most.  They do not pick up as much man-made noise (QRM) and they have a space saving footprint.  Fortunately, there is a wooden porch where these things have been tried.  I had successfully built a broadband amplified “ferrite sleeve loop” (FSL) in the past.  It was useful for a while but it fell into disrepair and also the Condo building has steadily increased in noise output.  The amplifier was just amplifying the noise after a while.  I also tried phasing two antennas but found the ever increasing noise cloud was coming from all directions and I could not null it out.  I even tried a “mini-whip” from eBay but that just produced a wall of noise.

I recently tested AirSpy’s YouLoop written about before, and the results were good.  However, it seemed obvious to me that it was too small as a passive loop to capture shortwave signals strongly enough without resorting to another amplifier attached at the antenna and would not improve the signal/noise ratio.  My current solution is a unamplified stealth magnet wire loop about 32 feet in circumference.  In that article, I mention things like common mode RF chokes at both ends of the antenna connection, horizontal polarization, and basically accepting that only the stronger shortwave signals will be received in a predictable manner.  I think for now, this is about all I can do for shortwave and mediumwave noise, as far as my own Condo-generated noise. Neighborhood noise is a different topic.

VHF Noise

I then started to isolate which devices caused which kind of noise when listening to my outside amplified antennas for FM/VHF and UHF-TV transmissions.  Many consumer Power adapters make a lot of noise from VLF up into UHF ranges.  One thing I did right was to try a 10 pack of these little miracle “Wall Wart” toroids from Palomar Engineers.  One by one, I put one of these small toroids (19mm inside diameter) on my home AC adapters as shown in the pictures, and the noises started disappearing.  It does not explicitly say, but I believe it is Type 75 material which suppresses the noise generating AC adapter (at very low frequencies) when wrapped 8 – 12 times.

Most egregious of these was my CCrane FM2 transmitter.  A strangled warbling sound kept emanating from the monitor closest to my laptop. Installing ferrites on the laptop and back of the monitor were not working.  I moved the FM Transmitter and noticed a reduction in noise.  So, I put one of these little toroids on the power input of the device and the noise disappeared.  Apparently, it was picking up noise from the monitor (as well as its own power adapter) and rebroadcasting it to all my other radios!  The strangled warbler is no more, I choked it (HaHa, sick bird joke).

While looking for the monitor noise, I put the eBay TDK ferrites on all the USB ports and HDMI ports.  This has helped greatly on VHF and confirms my suspicion that these cheap TDK ferrites are indeed a common type of ferrite material.  Some informative graphs can be seen in Jim Brown’s Audio paper mentioned before.  One example might be Figure 22, which shows the #61 Series Resistance which peaks around 100 MHz when using a toroid with three “Turns”.  More confused, I could not find a definition of a “Turn”.  Eventually, in his longer paper to Amateur Radio operators, he defines it, “…is one more than the number of turns external to the cores”.  Somewhere else he describes using many single snap-on ferrites being electrically equal to just one toroidal ferrite with multiple Turns.  And interestingly, more Turns shifts the peak impedance substantially lower in frequency.  So, using the graphs he supplies, one can target a noisy frequency range to try to suppress.

I then put 6 of the TDK ferrites on the VHF input to the AirSpy HF+.  Some FM grunge was reduced and was thankful for that.  The rest of the background noise truly seems to be coming from the outside picked up by the amplified antenna.

Also, I juggled a couple of the amplifiers around and now have separate VHF/FM and UHF/TV amplifiers which cleaned up the FM reception a little bit more – https://www.youtube.com/watch?v=zkDsy95et2w .

UHF TV Quality

On a whim, I put the balance of the TDK ferrites on the FM/TV splitter input cable, 10 in all.  The FM reception did not improve but the Over The Air UHF TV reception Quality improved noticeably.  My weakest TV station now has a stable Signal level and the Quality is pegged at 100%.  This is a nice surprise since it means that now all local TV stations on UHF will come in cleanly without dropouts and I can view all digital subchannels.  I was even able to rescan and added two more low-power stations never seen before. ?

LED lights

I have common LED lights hanging over a number of fish tanks and some grow lights over an indoor plant box and can hear this noise on upper shortwave and higher radio bands.  In a future article, I will explore RF noise from lights as its own special topic. For instance, why do some LED lights generate RFI and how to know before buying (I am using BR30 spot bulbs from name brands)?  Also, there is a new kind of LED “filament” light out now that uses much smaller LED’s on both sides of an aluminum strip, greatly reducing electromagnetic noise output (or do they??).  More questions than answers.

I will explore creating my own customized AC power cord attached to the AC power strips of the LED lights.  I will need to test this for safety and efficacy, so I will want to take some time to do this right.  The hope is that, using Jim’s info, I will be able to create a broad spectrum RFI suppression AC power cord and cost less than $30 each cord.  We’ll see.

Finally, I will look at “stacked” toroids using different mixes of ferrite Types, creating a custom RF suppression better than using just one Type of ferrite material, using AC cords as the main examples. For instance, the best set of graphs in Jim’s paper, in my opinion, are Figures 21 and 24 compared to each other.  Something I did not know before is that one can not only use multiple turns on a single toroid to get a lower, peaked frequency response, but also stack multiple toroids of the same Type to get a smoother frequency response.  Then on top of this, combine that set with other Types to create a customized frequency response curve.

Radios are quieter now.  Those pesky grow lights are still a problem as well as the upstairs neighbor’s lights which seem to be on a timer, making FM reception noisy again after 5pm!

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Jack finds that chokes have a huge impact on switching power supply noise

These “Wall Wart” type adapters can create a lot of RFI

Many thanks to SWLing Post contributor, Jack Dully, who writes:

I was putting some things in my radio junk parts box and came across some chokes. So I tried a test with my Tecsun PL-880 on battery and the Tecsun supplied switching AC adapter, with and without chokes on the adapter.

WOW!

I tuned to a vacant station on battery power with headphones on. Then on AC power, the hash and static were incredible. Putting one large choke on the adapter power cord, wrapped about four times and it decreased considerably. So I attached a second choke and once again the static & hash decreased even more, almost to the point of sounding like I was running just on battery power.

Those chokes really do work well.

Thank you for sharing this, Jack. I almost never operate my portables while connected to a power supply, so I often forget about the importance of using a choke with inexpensive, lightweight radio power supplies. Thing is, so many things in our houses and shacks are powered by these QRM generators. In the shack, I’ve added chokes I’ve picked up at hamfests to a number of various power supplies. It does certainly help decrease the noise level. I’ve even used them on power cords for other appliances in the house that tend to spew RFI.

If you ever find a deal on chokes at a hamfest or electronics store, grab some. They can be an affordable solution for those noisy power supplies we still rely on.

Thank you for the reminder and  tip, Jack!

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Lemons into Lemonade: Nick is taking advantage of Texas power outage to play radio

Many thanks to SWLing Post contributor, Nick Booras, who writes:

I am stuck in the house in Texas, bored and with no power. So I decided to make a couple videos with my phone. One nice thing about a power outage… no RFI [Radio Frequency Interference].

This Icom 705 is an awesome radio! Perhaps your viewers might like these.

Thank you for sharing these, Nick! Yes, as we’ve noted before, power outages are an ideal time to play radio and indulge in a low-noise environment! And I agree with you: the IC-705 is a superb shortwave broadcast receiver.

I hope our readers in Texas will have power restored soon–this has been a rough week for many.

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Radio Waves: RFI rebroadcasts halted in Taiwan, City Radio, Plans to Recover Titanic Radio On Hold, and Martin visits Radio Globo and Radio CBN Radio studios

Replica of the Titanic’s radio room at the Antique Wireless Museum (Source: Tripadvisor)

Radio Waves:  Stories Making Waves in the World of Radio

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 David Iurescia, Dan Robinson, Scott Gamble, and Martin Butera,  for the following tips:


Rebroadcasts of RFI programs halt over alleged “pro-China” stance (RTI)

Taiwan’s National Education Radio has decided to stop domestic rebroadcasts of Radio France Internationale’s programs. That’s after receiving listener complaints that the station’s news programs repeated Chinese talking points that praised Beijing, belittled Taiwan, and criticized the US.

National Education Radio had rebroadcast Radio France Internationale’s French and Chinese programs for Taiwanese audiences during two daily time slots under an agreement arranged by RTI.

During a meeting of the Legislature’s culture and education committee Wednesday, KMT lawmakers said that the education ministry should investigate whether the listener complaints were justified or not. They also expressed concern about what pulling the plug of the rebroadcasts might mean for freedom of speech and the press in Taiwan.

During the meeting, Education Minister Pan Wen-chung said that the rebroadcasting agreement had been intended to foster exchanges with France. Pan said the programs originally rebroadcast were mainly focused on educational and cultural topics. However, Pan said that RTI and National Education Radio have decided to temporarily stop the rebroadcasts, since the content of the re-broadcasted programs had begun to deviate from these non-political topics.

Pan said that he had not personally listened to the rebroadcast programs. He also said that the education ministry had not been informed about the decision to halt rebroadcasts until RTI and National Education Radio had already decided to do so among themselves. However, he said that the education ministry supports the decision.[]

Listen to radio stations from around the world with the push of a bright red button (Huckberry.com)

There’s one type of travel that’s always ready at the drop of a hat: mental vacations, or, travels of the mind. If that sounds pretty namby-pamby, wait until you see what we mean. Inside this handheld radio are 18 windows into the cityscapes of 18 international locations. Streaming live radio from whichever far-off locale you prefer, The CityRadio is a living, immediate connection to the authentic sounds, music, language, and culture of vibrant cities across the globe. Turn it on, tune in, and let your mind wander while your passport stays stowed in a drawer.

U.S. government tries to block Titanic expedition as archeologists say human remains could exist (Yahoo News)

A plan to retrieve the ocean liner’s radio received pushback as archaeologists say human remains could still be there.[]

 

Martin visits Radio Globo and Radio CBN Radio studios

I’m sending you a PDF about my visit to the Radio Globo and Radio CBN Radio studios, all with photos, video links, lots of texts, all very complete.

It also contains an interesting interview with a quite famous journalist, here in Brazil, creator of podcast content, who worked for 2 years in international Chinese radio and currently works in CBN Radio.

Click here to download (PDF 2.5MB).


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