80 meter problem is NOT Steppir’s fault!
At the beginning of February my Steppir Biggir with 80m coil kit failed again. That was the bad news. The good news is that we can learn from failure. I now believe that I...
Category: Radio Theory
“The Future” of Experimental Radio
Do you remember a few times in your life thinking that someone might be thinking what your are thinking? Though we are at the bottom of the worst sunspot cycle in my life (6...
RF Connectors; what frequency range for connector type?
Starting a new project and you are wondering what RF connector would be most appropriate? Found an interesting webpage that has a simple, quick, clear, chart which shows us the maximum frequency range for...
Fixture idea for measuring capacitors
I just ran across this article on E.D.N. for a simple, easy, fast, home-made fixture for measuring your capacitors. https://www.edn.com/electronics-blogs/all-aboard-/4460638/Solder-wick-trick-characterizes-bypass-caps
Another possible cause of T.V.I. ?
“T V I” means Tele Vision Interference. The most common causes of TVI are bad powerline insulators, poorly designed LED bulb circuits, poorly designed transmitters. And, sometimes, the receiver is just overloaded by a...
How to select the proper fuse for your circuit
Found a good article on selecting fuses for your project on a website called “Power Electronics” Here is a snippet from that article, listing the design factors explained in the article. Proper selection of...
Video: How to solder a PL-259
Oldy, but a goody, if you have trouble soldering your PL259 UHF connectors. This is a .wmv video, so it should play well in windows medial player, etc. How to solder a PL259_0001 (2017_02_06...
The Incorrect Application of the Concept of Average Current.
Our grade school and high school teachers try to teach us that 20 amp for 1/2 of a second out of each second is the same as 10 amps continuosly for 1 second. Well…....
The Case of the Low Power (Only) Antenna
The goal was to home-brew the most efficient multi-band antenna possible for my aging aluminum bodied motorhome. But the result was an antenna that worked well with 1 milliwatt and refused to work with...
John Northern Solves Zeno’s Paradox
For nearly 2500 years, scientists, mathematicians and philosophers have worked to solve Zeno’s paradox. Finally, John Northern, scientist and philosopher, has found the answer to the conundrum.