Bruce Perens K6BP and Chris Testa KD4BMH update their work on a multi-digital mode radio… what went wrong, and what happens next.
This video shows how easy is is to set up an end-fed HF antenna and a fiberglass pole, even in non-ideal weather. Sorry for the water on the lens; the... Read more
Description: This 10-80 Meter Multiband FEA (Field Expedient Antenna) Kit enables you to customize your Alpha Multiband HF Antenna. The kit can then b... Read more
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These tests show that the signal strength of a local station can be many tens of decibels weaker than from a DX station. For the last several years I... Read more
The new version of the well known Shared Apex Loop Array, the SAL-30 Mark II is here. The four vertical sides of the loops have been replaced by a sin... Read more
DXplorer™ is a unique web-based system providing facilities for on-air antenna system testing and comparison as well as real-time HF propagation analy... Read more
Simulation table Eznec, gain and F / B in free space and real space at a wavelength from the ground Technical specifications DOWNLOAD HERE THE of the... Read more