FT8—What Is It and How Can I Get Started?
I am guessing that most of you reading this have either heard about FT8 from fellow Hams or heard it on air as that strange repetitive buzzing sound between the […]
An Amateur Radio Blog by DX Engineering Technical Articles
FT8 / Technical Articles
Technical Articles
Guide to Contesting for Technicians
Contesting is one of Ham Radio’s most popular on-air activities. These are operating events with a time limit—anywhere from an hour or two to 48-hour events spanning an entire weekend. […]
Technical Articles
Energize! Power Options for Portable Ops
No matter where you operate, you’re going to need electricity. Some portable scenarios will allow you to use commercial power, of course, but for most situations, this means a battery. […]
Technical Articles
Video: Keyer Pad Basics
What are Iambic and single Lever paddles and how are they wired? In our latest Q&A Wednesday, we discussed the differences between Straight Keys and two types of Keyer Paddles […]
Technical Articles
Inductor Selection: Manufacturers Part Numbers
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 […]
Technical Articles
Inductor Selection: Design Sensitivities
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! […]
Antenna Tech / Technical Articles
Antennas 101: Do You Really Need an Antenna Tuner?
There is nothing more misunderstood or misrepresented in the world of ham radio than the antenna tuner. According to many, they’re an indispensable accessory for your ham shack and a […]
Clifton Labs / Technical Articles
Using Copper Tubing Windings on a Binocular-Core Transformer
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 […]
Clifton Labs / Technical Articles
Permeability and Ferrite Material
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 […]
Technical Articles
Tips for Battery Replacement in Computers, Radios, or Lab Equipment
Due to the lower cost and better performance of non-volatile memory, it is now a common feature of microcontrollers. This reduces the need for batteries to provide backup power to […]
