A swimming pool, RFI and a lightning strike: My SWLing Story

by Troy Riedel

New readers will not recognize my name.

Longtime readers may not recognize my name, but chances are you may remember my story.

I once contributed posts to this Blog … until … ‘the swimming pool’. During COVID, my wife decided she wanted an in-ground swimming pool. The construction started in May 2020 and was completed in May 2022 (note: my pool contractor is now out of business; he ruined another company’s business as a ‘partner’, has many lawsuits filed against him, and I know he’s served time in jail under work release – all subsequent to our project).

No exaggeration.

If you’re interested in reading the entire story of my problem, I’ll refer you to my last two posts here:

For those who don’t have time to catch up, here’s an overview:

Late in the pool construction after the bonding was installed and the concrete deck was poured, I turned on my collection of portable shortwave radios, and I experienced the worst, most horrendous EMI/RFI imaginable. Nothing – and I mean nothing – on the shortwaves was intelligible. 100% uninterrupted static.

The SWLing Post Nation was great. I must have had three dozen? … four dozen? … people comment and offer advice (both on and off the Blog). And I received very detailed opinions, suggestions, and analyses via my personal email. Unfortunately, nothing mitigated my problem. My actions:

  • I hired an independent electrician at an hourly rate to check the pool & the entire house – he could not find the problem.
  • I called the power company (Dominion). To Dominion’s credit, they dispatched an expert and a ladder truck, but they confirmed the source was not from the main power line nor from their transformers.

So approximately 5-years ago, I was forced to abandon the SWLing hobby. Early on, I’d turn on my radios every two months to see if my issue abated. After a while, I checked quarterly. Then semi-annually. In the last year or two, I’ve turned on my radios every winter to check and every time, I still had the horrendous and almost incomprehensible EMI/RFI issue rendering my SW radios as paperweights.

Fast forward to recent history.

In late June 2026, my house suffered a direct lightning strike. The bolt struck the metal chimney cap. My wife & I were sitting in the room with the fireplace and the entire room glowed! There was no fire, but I had a hole in the siding. One of my six security cameras was blown off the side of the house. Flames literally shot out of one electrical outlet on the opposite side of my house. In total, I suffered over $13,900 in damage (thank you, Allstate Insurance).

The pool suffered two damaged items: an outdoor ground fault outlet and the pool light were both fried (the light and the connected transformer for the light both connect to the ground fault circuit outlet).

One of the SWLing Nation friends that I made five years ago is Ken English. Every so often he’ll send me a text message, and we’ll have a friendly chat. Last Saturday Night, he reached out and we text chatted. During the chat I mentioned the lightning strike. He replied, ‘Did it [the lightning strike] change your interference problem?’

Hmm, great question. Did it? How could it? But wait, maybe somehow it did!

I turned on my radios and guess what? The interference is gone! And I now know the source of this five-year problem that knocked me off the shortwaves. The pool light!

The pool light is underwater. The power cord to the light runs underground for 80-feet where it connects to the transformer, which is on the ‘outdoor power panel’ that runs the pool electronics and equipment. I had a professional replace the light and transformer which required snaking 80’ of power cord out and replacing it with a new 80’ power line.

I’m not an electrician. I can’t explain the dynamics behind it. But a direct lightning strike that caused over $13,900 of damage has me back on the shortwaves!

Thank you, lightning. And thank you, Ken, because without your Saturday Night text, I would not have discovered that my 5-year problem was mitigated until – probably – some cold, cloudy December night.

Carlos’ Illustrated Radio Listening Report and Recording of ZP-30 & NHK (August 3, 2026)

Many thanks to SWLing Post contributor and noted political cartoonist Carlos Latuff, who shares the following illustrated radio listening report.


Carlos notes:

Earthquake/dangerous hot weather in Japan, heavy rain in China – NHK (Japan) ZP-30 (Paraguay)+radiofax

Click here to view on YouTube.

Typhoon Dolphin, radiofax from Japan Meteorological Agency, Aug 3, 19h10 UTC

KBS World Radio Invites Listeners to Take Its 2026 Survey

Many thanks to SWLing Post contributor Paul Jamet, who notes that KBS World Radio is inviting listeners to participate in its 2026 listener survey.

The survey asks about your listening habits, interests, and experiences with KBS World Radio. It’s also an opportunity to share your thoughts on the programming and let KBS know what you’d like to hear in the future.

And there’s an added incentive: survey participants have a chance to win a prize!

If you listen to KBS World Radio—whether via shortwave, online streaming, or another platform—consider taking a few minutes to complete the survey and share your feedback.

Take the KBS World Radio 2026 Survey

Radio Prague: “Microphones against tanks”

Radio Prague editors in 1968. Photo: Radio Prague International

Many thanks to SWLing Post contributor David Iurescia for sharing the latest installment in Radio Prague International’s fascinating series on the history of Czechoslovak broadcasting. This continuation of the series, “Microphones against tanks: The voice of freedom on the airwaves and the invasion meant to silence it,” explores how Czechoslovak Radio evolved during the political thaw of the 1960s—and how that newly independent voice was confronted by the Soviet-led invasion of 1968. It’s another fascinating look at the important role radio played during one of the most turbulent periods in Czechoslovak history.

Read the full article at Radio Prague International: https://english.radio.cz/microphones-against-tanks-voice-freedom-airwaves-and-invasion-meant-silence-it-3-8889748

BBC Radio 5 Live Closing More AM Transmitters

Many thanks to SWLing Post contributor Majid Hussain, who points us to this RadioToday report on the BBC’s continuing reduction of its mediumwave footprint.

The BBC has begun the phased closure of some BBC Radio 5 Live AM transmitters, with the first two transmitters scheduled to close at the end of July. The move is part of the BBC’s broader transition toward FM, DAB, television, and online listening, and marks another significant step in the gradual decline of AM broadcasting in the UK.

Click here to read the full article.

RTI’s August Direct Transmissions: New Frequency and Special QSL

Many thanks to SWLing Post contributor Paul Jamet for noting that Radio Taiwan International (RTI) is changing one of its frequencies for its French-language broadcasts to Europe and North Africa during August 2026.

RTI will be conducting direct transmissions from its Tamsui transmission center in northern Taiwan every Friday, Saturday, and Sunday from August 7 through August 30, 2026.

The revised schedule is:

  • 15145 kHz: 17:00–17:30 UTC
  • 11850 kHz: 17:30–18:00 UTC

The second frequency represents a change from RTI’s previously announced schedule. According to RTI, listeners reported recurring interference on 11995 kHz during the German service broadcasts in July. As a result, the French service will use 11850 kHz instead. RTI thanked listeners who helped test the new frequency over the past several days.

RTI is also offering a special QSL card to listeners who submit reception reports for these broadcasts. Reports can be sent by email to [email protected].

Paul also shared a scan of the special QSL card he received (above) after participating in RTI’s frequency tests last June.

This should provide an excellent opportunity for European and North African listeners to put both frequencies to the test—and perhaps add a special RTI QSL to their collections in the process.

Carlos’ Illustrated Radio Listening Report and Recording of BBC and CRI (July 29, 2026)

Many thanks to SWLing Post contributor and noted political cartoonist Carlos Latuff, who shares the following illustrated radio listening report.


Carlos notes:

Wildfires, via Radio Nacional Argentina, BBC and China Radio International

Click here to view on YouTube.