This article is intended to introduce the beginner to the interesting and challenging art of high frequency radio design. It is also intended to entice the seasoned professional to take a deeper look ...

Fully assembled and tested in the USA by K9DP. This is the Male/Female BNC connector version. Connect the filter directly to your QRP radio without adapters! Designed to help HF radios and receivers ...

As discussed in Part 1 of this series, as the frequency of a single or coupled tuned circuits is increased, the selectivity decreases to the point that there may be insufficient selectivity at the ...

We will have all at some point seen a fascinating project online, only to find not enough information to really appreciate and understand it. Such a project came [Bill Meara]’s way over at the ...

There are two ways to deal with improving ham radio receivers, or — for that matter — any sort of receiver. You can filter and modify the radio frequency including the radio’s intermediate frequency, ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Amateurs began making home radios to ...

Radio receiver company C. Crane has introduced the CCRadio-2, a battery-operable AM/FM/Weather receiver with a twist: a ham band. During emergencies, it is not unusual for local and regional amateur ...

ST LOUIS, Feb. 24, 2025 /PRNewswire/ -- Reticulate Micro, Inc. (OTCQB: RMXI) ("Reticulate Micro," "we," or the "Company"), a software products company specializing in advanced video compression and ...

Although Digital Radio Mondiale (DRM) services have been broadcast since 2003, it is only recently that domestic portable receivers have entered the market. The senstivity of this early equipment has ...

The Australian Defence Force is trialling wideband high frequency radio technology for IP data transfers of voice, messaging, photos and videos, as a backup for its existing narrowband satellite ...