Search Results for: ferrite

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Don’t Forget the Band Pass Filters on Field Day

ARRL Field Day (June 27-28, 2020) can be a challenge if you’re not properly prepared. One of the biggest obstacles to a successful Field Day can be setting up multiple […]

dx engineering grounding plate under a ham radio
Technical Articles

Staying at Home? Turn Your Attention to Troubleshooting and Upgrading Your Amateur Radio Station

While you’re home, now’s a good time to start thinking about nagging station issues you’ve never had the time to resolve. You could also venture outside (practicing prescribed social distancing, […]

DX engineering maxi-core balun
Products & Product Reviews

Maxi-Core® 20 Baluns and Feedline Chokes Usher in New Era of RF Performance

Maxi-Core® 20 Baluns and Feedline Chokes reduce or eliminate currents on the outside of your feedline allowing you to hear and to be heard much better. They keep more RFI/BCI […]

DX Engineering Maxi Core Balun
Technical Articles

Baluns vs. Impedance Transformers

There is a lot of confusion about baluns—where you need to use one, what the balun is supposed to accomplish, and even what a balun really is! The term “balun” […]

ham plus antenna selector switch box
Technical Articles

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 […]

audio noise isolator adapter
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 […]

homemade ferrite core transformer
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! […]

Band Reject filter circuit board
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 […]