Skip to content

KM1NDY

  • Home
  • About My Secret Little Radio Blog
  • Adventure
  • Radio

KM1NDY

A Secret Little Adventure Ham Radio Blog

Category: Radio

Singing Me And Georgie Down By The Seashore

April 7, 2024 by KM1NDY

Stole the OM’s radio, grabbed the puppy, and went to make a qso or two for the CQWW SSB contest down on the seawall at Castle Island. That is the Elecraft KX2 with the AX1 antenna. I only managed a single contact…but it was to Slovenia. I think it counts. KM1NDY

Continue Reading

Koolertron For The Win, Or How My Cruddy Understanding Of Signal Generators And Oscilloscopes Led Me To Believe Mine Was Messed Up…

March 31, 2024 by KM1NDY

The mark of an expert is knowing not simply what you know, but knowing what you don’t know. There are things in life I am truly an expert in. Electricity is decidedly not one of those things. For every new tidbit I learn, a door opens to reveal a seemingly infinite number of topics I …

Continue Reading

Generating Bad Signals And The Story Of The Poorly Tested Butterworth Bandpass Filter

March 31, 2024 by KM1NDY

(New follow-up post here!) How hard could it be to construct a little band pass filter, throw a signal through it, and see if it properly attenuates? A breadboard, a small handful of components, an online filter design tool. Fifteen minutes, tops? I was longing for the pleasurable jolt of satisfaction that one only gets …

Continue Reading

Five Years Of Electromagnetic Bliss! Happy Ham Birthday To Me!!

February 20, 2024 by KM1NDY

Sending out a flurry of sinusoidal waves to those important people who share this lovely day with me! Love you guys!

Continue Reading

Thirteen Points: Tecumseh

February 11, 2024 by KM1NDY

Solidly in the back nine now…

Continue Reading

How To Analyze A 49:1 Impedance Transformer (Unun) Using A NanoVNA For An End-Fed Halfwave (EFHW) Antenna Build

February 7, 2024 by KM1NDY

Along my journey on understanding radio, electronics, and in particular, the magic of baluns, ununs, and other transformers, I came across this helpful video on how to analyze a 49:1 unun with a NanoVNA. I replicated it with the the “Alleyway Antenna” transformer. This one below…unfortunately I did not take a lot of pictures of …

Continue Reading

Another Girls Getaway – The ARRL SSB Sweepstakes!

December 11, 2023 by KM1NDY

Well it wasn’t the CQWW SSB, but it was another girls getaway nonetheless. Though this time, it was without my beloved sweet pup Nellie, who passed away last spring. Georgia, who does her very best to constantly remind me she’s not Nellie, and I gathered up our gear and headed off to the Salisbury Beach …

Continue Reading

Alleyway Antenna Analysis: The Ever-Present Trials Of The Urban Ham

December 11, 2023 by KM1NDY

It certainly feels a bit like I am going back to my roots lately with scrappy little antenna projects strung up along the fence in my alley. Yup, that is a giant trash barrel I am using as a table top. A lady ham’s gotta do what she’s gotta do, ya know? If you are …

Continue Reading

I’ve Never Been So Excited About Regulations! DIY DC-to-DC Voltage Converter Made By Certainly No Expert…

October 8, 2023 by KM1NDY

It was only a few short years ago that I texted a friend of mine in a panic because I had chipped the corner of a ceramic capacitor (probably a 103 or something like that). I had spread its little wire legs too far apart while trying to put a through hole CW transceiver kit …

Continue Reading

Attempting To Build An AM Radio Receiver With One Transistor And A LM386 Audio Amplifier

October 3, 2023 by KM1NDY

One of the best parts for me about maintaining this blog is being able to see my own progression within the amateur radio (and electronics) hobby. About a year and a half ago, I published my first attempt to breadboard a receiver (here). It is rather painful to look at. And it did not work. …

Continue Reading

Posts pagination

  • Previous
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • …
  • 22
  • Next
© 2025 KM1NDY | WordPress Theme by Superbthemes