CW Contesting (Part 1): Getting Started
Most days, the CW bands are kind of quiet. But on certain days, suddenly there are stations tuning up, conducting short QSOs, and then at the top of an hour […]
An Amateur Radio Blog by DX Engineering Articles written by: Ward Silver, N0AX
Technical Articles
Technical Articles
Using Transformers for Impedance Matching vs. Isolation
Transformers for Impedance Matching One of a transformer’s important functions is impedance transformation. Impedance transformation is just changing the ratio of voltage-to-current in one winding to a different ratio of […]
Technical Articles
Guide to Low-Power Contesting (Part 2): Techniques and Tips on Making QSOs
In Part 1 of our series on low-powering contesting, we looked at the basic equipment you’ll need. Today, let’s touch on a few tips on competing, contest resources, and opportunities […]
Technical Articles
Guide to Low-Power Contesting (Part 1): Getting Started
Field Day was fun, wasn’t it? Maybe you’re thinking, “I can do that from home!” And so you can—this discussion is about how to have some success with a modest […]
Technical Articles
What To Look For in Your First Mobile Rig
After getting a license, there are so many things to learn! One of the biggest (and the most fun) is what you learn as you choose your radio. This article […]
Technical Articles
How to Put up a Field Day Tower Safely
Field Day (June 22and 23, 2019) is almost here and the planning is underway — for radios, tents, food, antennas—and how to keep them up! You may be lucky and […]
Technical Articles
Ferrite Chokes, What are They, Anyway?
In other OnAllBand entries, we’ve covered what ferrites are, how their behavior varies with frequency, and some of their applications in the ham station. This time, we’ll focus on their […]
Technical Articles
What is Ferrite Used For, Anyway (Part 2)
In the OnAllBands entry, “What is Ferrite, Anyway?” we discussed what ferrite is and what makes up a “mix.” We also explored how ferrite behaves at different frequencies. Ferrite has […]
Technical Articles
What is Ferrite, Anyway?
Ferrites are made from oxides of iron, cobalt (Co), barium (Ba), and strontium (Sr). The type of ferrite most useful to hams are soft ferrites. (The hard ferrites are good […]
