Наиболее удачные публикации по радиолюбительской тематике во всём мире за неделю — в обзоре ТОП радиолюбительских ресурсов. Этот обзор полезных интернет ресурсов представлен как выпуск лучших радиолюбительских сайтов недели «Top Amateur Radio Websites – Issue 1814».
См. лучшие сайты радиолюбителей — Выпуск 1814:
A very efficient 80 meter Counterpoise antenna designed to reduce ground losses from inadequate radial systems beneath inverted L antennas, a project by DM2GM and DM4IM based on the original K2AV antenna concept.
The Hentenna is an Asymmetrical Double Rectangle (ADR) Loop Antenna originally designed by Japanese Hams operating on the 6 m Band in the 1970s.
A Home brew 3-500Z HF Linear Amplifier heavily based on the Ameritron AL-80B
UK ham radio website with info on a variety of things by M0TRJ
How to setup the Yaesu FT-847 along to the PSTRotator under Windows 10 PC with Omnirig.
An end-fed half wave antenna matching unit made of 3:24 turns ratio on a FT140-43 toroid with a 150pF capacitor across the input.
An interesting article about a homemade LiFePO4 battery pack for ham radio operations, a 10Ah LiFePO4 based on Headway 38120 Cells
Interfacing the Jabra 9450 flex wireless headset to the Icom IC 7300 ham radio transceiver.
HM-36 Modification to make it work with an IC-7200 and the IC-7600
A page with pictures of the Ameritron AL-80B Amplifier, including the inside box where is possible to see the 3-500ZG tube capable to provide 800W in CW.
Introduction to NVIS antenna and NVIS propagation. A simple NVIS antenna can be constructed as shown in this article
Inches and meters Javascript Wavelength Calculator allow to input a frequency in MHz and calculate wavelenght in several units considering also fractions of wavelenght and the velocity factor. Includes an usefull inch to meter converter
Batteries for portable radio operation are always an interesting subject for discussion. Review of some LiPo (Lithium-ion polymer ) batteries for amateur radio use.
