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How good an antenna is ? - How good is an antenna? Four figures describe how good an antenna is compared to the required performance, swr directivity gain and bandwidth

Measuring antenna gain - The gain of an antenna is measured in relation to the gain of another further specified antenna through a comparison measurement.

Inside The Drake TR-7 - The intent of this article is to help the semi-non-technical person understand what is inside the Drake TR-7(A) Transceiver, how it works, and discusses simple adjustment and modifications the end-user can perform

FT-857 hidden menu - Yaesu FT-857 offers an availability of changing parameters through the hidden menu.

Baofeng UV-3R Menus - Video on Baofeng uv-3r menus