There I was, minding my own business at Field Day, when I ended up in a conversation with The Matts (KF0RIG and KG0AT). They said something about being in the Brass Knuckle Gang, which I knew nothing about. One of the Matts said “it is kind of fun and kind of dumb.” I thought “this ... Read more

The post K0NR BKG114 appeared first on Above Average Terrain.

Show Notes

Featured Topic

• OscarWatch by Peter Goodhall (MM9SQL)
  • Source: https://lhs.fyi/LM (github)
  • GPredict: https://lhs.fyi/LR
  • SkyRoof: https://lhs.fyi/LS (The SDR Satellite Tracker I couldn’t remember)

Announcements & Feedback:

• Announcements:
  • Support the show!  
    • Support us via Patreon, Paypal, Merch, Sharing the Podcast via Social Media, and Rating Us in your Podcast Application!
  • We need your feedback!
    • Comments, Questions, Show Topic Ideas! Email us at [email protected]
  • Memorial Service for Russ, K5TUX
    • There will be a memorial service held for Russ at our home in Mt. Vernon, Missouri on November 1, 2026.  Everyone is welcome!  If you’d like to join us, please send an email to [email protected] and we’ll send you more info!
    • Facebook event page: https://lhs.fyi/mem
• Feedback:
  • YouTube Comment on Episode 620 from @TurtleWaxed
    • Thanks! I didnt know about meshyface..will have to check it out. LHS rocks! :)

Subscribers & Supporters:

• Mastodon
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• Live Show Participants
  • Tony - K4XSS
  • Mike - K6GTE
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In this episode, we join Martin Butler M1MRB, Chris Howard (M0TCH), Martin Rothwell (M0SGL), Frank Howell (K4FMH), Bill Barnes (WC3B) and Leslie Butterfields (G0CIB) to discuss the latest Amateur / Ham Radio news. Colin Butler (M6BOY) rounds up the news in brief, and the episode's feature is Windows 10 to Linux

We would like to thank Philip Heckingbottom (VK6ADF) and our and monthly and annual subscription donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

• Volunteers Wanted for Intruder Watch team
• Young Ham Radio Operator Supports the America250 Celebration
• Tour De France is a Tour De Callsigns
• Radio Has a "Senior Moment" to Remember
• New Annual Verification Process by RadioID.net
• 2026 AMSAT Space Symposium & Annual General Meeting
• New Technician Question Pool Takes Effect 1st July 2026
• WRTC 2026 Update

In this episode, we join Martin Butler M1MRB, Chris Howard (M0TCH), Martin Rothwell (M0SGL), Frank Howell (K4FMH), Bill Barnes (WC3B) and Leslie Butterfields (G0CIB) to discuss the latest Amateur / Ham Radio news. Colin Butler (M6BOY) rounds up the news in brief, and the episode's feature is Windows 10 to Linux

We would like to thank Philip Heckingbottom (VK6ADF) and our and monthly and annual subscription donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

• Volunteers Wanted for Intruder Watch team

• Young Ham Radio Operator Supports the America250 Celebration

• Tour De France is a Tour De Callsigns

• Radio Has a "Senior Moment" to Remember

• New Annual Verification Process by RadioID.net

• 2026 AMSAT Space Symposium & Annual General Meeting

• New Technician Question Pool Takes Effect 1st July 2026

• WRTC 2026 Update

Show Notes

Amateur Radio Topics:

• ARRL Field Day is happening June 27-28, 2026
  • Source: https://lhs.fyi/LH (ARRL)
• 13 Colonies Special Event 2026
  • Source: https://lhs.fyi/LI (13colonies)
• National Scout Jamboree 2026
  • Source: https://lhs.fyi/LP (scouting)

Open Source / Linux Topics:

• Ubuntu is adding AI-powered voice input to all text fields
  • Source: https://lhs.fyi/LJ (OMG Ubuntu)
• A pop of color is coming to LibreOffice
  • Source: https://lhs.fyi/LK (OMG Ubuntu)
• Linux 7.1 has changes galore…
  • Source: https://lhs.fyi/LL (OMG Ubuntu)

Linux in the Ham Shack Topics:

• N5SAC Ham Club to Keep Ham.Live Net Management Tool Running
  • Source: https://lhs.fyi/LN (Amateur Radio Daily)
  • Security Code Review:
    • Critical / High - 3
    • Medium - 4
    • Low / Informational - 4
• OscarWatch Tracker
  • Source: https://lhs.fyi/LM (github) (saw info on Amateur Radio Daily)
  • Security Code Review:
    • Critical / High - 0
    • Medium - 2
    • Low / Informational - 6
• Meshyface
  • Source: https://lhs.fyi/LO (github) (saw info on Amateur Radio Daily)
  • Security Code Review:
    • Critical / High - 2
    • Medium - 3
    • Low / Informational - 2

Announcements & Feedback:

• Announcements:
  • Support the show!  
    • Support us via Patreon, Paypal, Merch, Sharing the Podcast via Social Media, and Rating Us in your Podcast Application!
  • We need your feedback!
    • Comments, Questions, Show Topic Ideas! Email us at [email protected]
  • Repeater sold!  Thanks to everyone who inquired about it!
  • Memorial Service for Russ, K5TUX
    • There will be a memorial service held for Russ at our home in Mt. Vernon, Missouri on November 1, 2026.  Everyone is welcome!  If you’d like to join us, please send an email to [email protected] and we’ll send you more info!
    • Facebook event page: https://lhs.fyi/mem

Subscribers & Supporters:

• Free Patreons
  • Eggon
  • kev2600
• Paypal
  • Paul Mooney
  • Jeff Zimmerman
• X / Twitter
  • Em Unsupervised
  • clairre17
  • victoria
• Mastodon
  • Grant
• Discord
  • roddybandido
  • InsaneSplash
  • Joe N7AGV [G][VE]
• Live Show Participants
  • K4XSS (Tony)
  • K5FAZ (Tucker)
  • W4DPE

LED RFI

Where we live, I have a very quiet noise floor and have enjoyed it for years. Recently, however, while operating on 40 meters, I noticed an offending signal on the Icom IC-7610 waterfall display. The noise repeated approximately every 15 kHz. If a CW signal happened to fall within the hash, I was unable to hear it.

I tried using the radio's noise reduction feature, which reduced the interference somewhat. However, increasing the noise reduction too much tends to distort CW signals, so that was not a satisfactory solution. I also tried the noise blanker, but it had no effect on the noise.

I began to think about what had recently changed in our home. Sure enough, my wife had recently purchased an LED light for her sewing table. As a quick test, I turned off and unplugged the new light. Immediately, 40 meters returned to its normally quiet state. When I plugged the light back in and turned it on, the offending signal returned.

The new problem.

I had several Fair-Rite Mix 31 snap-on ferrites, so I installed them on the power cord near the wall wart and  where the cord connected to the light. This made only a very small difference. The LED light's wall wart was plugged into a power bar, so I also added ferrites to the power bar's 120-volt power cord. Again, there was little improvement.

Next, I dug out my trusty battery-powered Eton radio and tuned it to a quiet spot on the AM broadcast band. Extending the antenna, I began hunting for the source of the RFI. When I moved the antenna close to the LED light's wall wart, the radio burst into noise. 

I considered trying a different power supply, but the LED light required 24 volts DC and all the spare adapters I had were 12 volts. After doing some online research, I came across a Mean Well power supply that appeared to have excellent filtering specifications. I ordered the correct model from Mouser Canada and hoped it would solve the problem.

Offending wall wart.

A few days later, it arrived. I plugged it in and—wow—the offending noise was completely gone. I placed the AM radio right beside the new Mean Well adapter and found it to be very quiet. It was satisfying to track down the source of the interference and solve the problem.

The lesson learned was simple: not all power supplies are created equal. In this case, the inexpensive wall wart supplied with the LED light was generating significant RF noise, while the replacement Mean Well supply was virtually silent on the air.

40m back to normal

The new Mean Well