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 […]
An Amateur Radio Blog by DX Engineering Search Results for: ferrite
Technical Articles
Technical Articles
Troubleshooting Hum, Buzz, Crosstalk, and RF Pickup
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 […]
Clifton Labs
Designing an Easy Broadband RF Transformer
(Editor’s Note: The following article is from the archives of experimenter, inventor, friend of the Ham Radio community, and founder of Clifton Laboratories, Jack Smith, K8ZOA (SK).) In working on an […]
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! […]
Clifton Labs
Inductor Selection for an AM Band Reject Filter
(Editor’s Note: The following article is from the archives of experimenter, inventor, friend of the Ham Radio community, and founder of Clifton Laboratories, Jack Smith, K8ZOA (SK).) One project I’ve been […]
Clifton Labs
Non-Linear Xformer Behavior
(Editor’s Note: The following article is from the archives of experimenter, inventor, friend of the Ham Radio community, and founder of Clifton Laboratories, Jack Smith, K8ZOA (SK).) I’ve written about linear […]
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 […]
Clifton Labs / Technical Articles
Audio Transformer Measurements and Modeling
(Editor’s Note: The following article is from the archives of experimenter, inventor, friend of the Ham Radio community, and founder of Clifton Laboratories, Jack Smith, K8ZOA (SK).) This page presents […]
Antenna Tech / Technical Articles
Setting Up Multiple Antennas? 4 Tips on Avoiding Interference
Whether you’re operating at Field Day or a multi/multi contest station, one of the biggest problems is too many stations in a small area. So how do you control interference […]
