Station Improvements: Inside During the Winter
Station repairs and upgrades can take place all year round, inside and out. That said, Hams who live where the chilly winds blow and the snow flies during the winter […]
Station repairs and upgrades can take place all year round, inside and out. That said, Hams who live where the chilly winds blow and the snow flies during the winter […]
Learning Morse code for CW operation has many similarities to learning how to play a musical instrument. Modulating the musician’s maxim about achieving success, “How do you get to the […]
Hams are typically less precise in their use of technical terms than are professional engineers and technicians. Nowhere is this more true than in descriptions of signals contaminated with unwanted […]
Contests come in a lot of shapes and sizes, from domestic sprints lasting a few hours to weekend-long, 48-hour worldwide DX contests. The difference can be as great as between […]
So you have a station, you’re operating in the contests, and looking to move up the score listings— excellent! But what to do? Is there a BNR (Big New Radio) […]
If you purchase ferrite components from most manufacturers, you’ll find that they all look pretty much alike: dark grey beads and toroids and rods without markings or other identification. This […]
Amateurs have long used the Amidon (www.amidoncorp.com) part numbering system for ferrite and powdered iron toroid cores. For powdered iron cores, the Amidon part number begins with a T and […]
When you start designing your own circuits, one of the biggest challenges is not obtaining component values, but choosing from many different types of components all having the same value! […]
It is often effective to use copper tubing as single-turn winding on a binocular-core transformer. The tubing has extremely low losses and minimizes leakage inductance which extends the transformer’s high […]
Since the article was written in 2008, other types of ferrite material have been introduced with different characteristics over the MF and HF frequency ranges. Type 31 has become popular […]