“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...
Author: SecondHandRadio
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...
Uranium from the Ocean ?
Very interesting….. the United States Department of Energy has sponsored research that has successfully ‘mined’ uranium from the ocean. Real world tests will begin soon. At first reading, this seems to me to be...
$2,800,000 fine for bogus “amateur radio” transmitters for drones
June 5, 2018, the FCC announced a $2.8 million fine against Hobby King for repeatedly selling mis-identified un-certified transmitters. The transmitters, mostly, were advertised for sending live video from unmanned aircraft back to the...
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
FCC confiscates equipment from N.Y. pirate broadcaster
WASHINGTON, May 15, 2018 Taking action against a pirate radio operator, Federal Communications Commission agents, in coordination with the U.S. Attorney’s Office for the Southern District of New York and the U.S. Marshals Service,...
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...
Largest FCC Fine Ever ! For spoofing robocalls
96,000,000 Robocalls ! WASHINGTON, May 10, 2018— The Federal Communications Commission today fined Adrian Abramovich $120 million for malicious spoofing that was part of his massive robocalling operation aimed at selling timeshares and other...
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...