Search Results for: ferrite

wire wrapped ferrite choke
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 […]

a ferrite choke on a usb cord
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 […]

assortment of ferrite chokes
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 […]

DX Engineering ferrite noise cores
Products & Product Reviews

DX Engineering Expands Its Lineup of Color-Coded Ferrite RF Noise Reduction Kits

DX Engineering now offers Color-Coded Ferrite RF Noise Reduction Kits covering a wider range of uses. Kits contain toroids and snap-on beads for specific RF suppression applications (linear amplifiers, AM […]

Events

Clipperton Island 2024, TX5S, is in the Books. DX Engineering-Sponsored Activation Nets 113,000+ QSOs.

After a windswept stay in January, the 16-operator TX5S team left the French overseas state private property of Clipperton Island (IOTA NA-011) with an impressive 113,738 QSOs in their logbook […]

Technical Articles

Types of Feed Line Chokes

A feed line RF choke creates a high impedance in the path of RF common-mode current on the outside surface of a coaxial cable shield. The choke doesn’t affect currents […]

dx engineering pixel loop antenna radiation pattern
Antennas and Tuners

Ham Radio Tech: Simple Low-Band Receiving Antennas

The receiving antennas covered in this article are small enough to fit on residential lots or to use with a portable station. They are not transmitting antennas! Most are relatively […]

Grounding and Bonding for the Radio Amateur Book
Technical Articles

Ham Radio Grounding and Bonding and RFI

Over the past few years, a lot of attention has been developed regarding grounding and bonding. I am pleased that my ARRL book Grounding and Bonding for the Radio Amateur […]

Amateur Radio News

OnAllBands Year in Review: The Ham Radio Year That Was…and Some of Our Favorite Blog Posts from 2023

Another busy year in amateur radio is almost history—and what a year it was! OnAllBands was excited to bear witness to all the hamfests, DXpeditions, contests, and new products that […]

Events

It’s All in the Cards! QSL Cards from Clipperton Island

Clipperton Island QRV in January OnAllBands is excited to kick off 2024’s QSL card posts by featuring the long-anticipated TX5S DXpedition t0 Clipperton Island. Per its website, the TX5S team […]