What A Tease! Flirting With A New Hobby…
Hint: The transmission gets built tomorrow!
KM1NDY
A Secret Little Adventure Ham Radio Blog
Third Annual W1 SOTA 2024 Winter Bonus Event On Mount Sunapee: A Study In Peer Pressure And A Bothy Bag Gear Test
If my friends jumped off a bridge would I? Well, this is such a nuanced question. First, how high is the bridge? Next, what is under the bridge? Third, who was going to go first? And when someone declares a Summits-On-The-Air “Winter Bonus and Summit-to-Summit Weekend Event” as Bob AC1Z has now done for three …
Cutting All Ties, Or How The DIY Isolation Transformer Enables Oscilloscope Probing of Bridge Diode And Other Rectifiers (This One Is A Doozy!!!)
Having accomplished my stated goal of eating my way through Thanksgiving, now thoroughly satiated, I am finding myself eager to get back to this blog post. One of the first things that comes to mind is why am I bothering with any of this? Oh, don’t get me wrong, I immensely enjoy the subject matter …
JFET Common Source Amplifier Circuit Analysis Laboratory (Nothing More Than A Mental Exercise)
Much like many items on this secret little site, there is no particular purpose to writing this laboratory report. Often these posts are simply mental exercises, helping me work through concepts, ideas, and projects. This website exists exclusively for my own pleasure. The ability to construct words on a page, arrange photographs at will, and …
Hey Good Lookin’! 20 Meter Propagation To Europe For CQWW SSB Ham Radio Contest
Hoping my radio waves make the most of the salt water tomorrow on their way off to foreign lands. I’ve heard the sun may be coughing up a fireball (a.k.a. a coronal mass ejection). This picture shows the stations receiving my 200mW 20M WSPR signal from my home QTH from 1:00 to 4:00 UTC (9pm …
Hobo Ham Radio: Trashing Up The Airwaves
I lost my Nellie eighteen months ago. We had our secret spot along a tidal river. Perhaps you remember some of the old stories I told? Nellie learned a lot about life on these banks. And so did I. My new canine pal came into our life very shortly after the passing of Nellie. A …
Catching The Full Wave: Bridge Rectifier On The Oscilloscope
As my ham radio journey takes me on a more formal study of electricity, my home laboratory grows. I remember purchasing the Tektronix 2465 a few years back on a suggestion of a friend, not having a clue what I was doing with it. I just knew that real electronics enthusiasts had an oscilloscope. Now …
…And Now The Little Ham Radio Workshop Is Starting To Become An Electronics/RF Lab…
From Top to Bottom: Not shown are my RigExpert VNAs, the NanoVNA, the Koolertron 60MHz function generator, the Tacklife 30V 5A variable DC power supply, and handheld digital multi- and LCR meters. On the bench is the Weller WE1010NA soldering station. Oh yeah, and my Elegoo 3D printer. I think its turning into a proper …
¡Holy Tamale! This DIY Breadboard AM Radio Receiver Actually Works…(Video)
It was not all that long ago that I tried unsuccessfully once again to make an AM radio receiver from discreet components and an LM386 low voltage power amplifier. Well, apparently the fifth time is a charm…because THIS ONE WORKS!!! As you can see in the video and pics below, there are only really a …
