Frequency adaptive communication systems (also known as "HF adaptive Systems") first appeared in the 1980s and have been developed because of the unique characteristics of HF communications and its ...

and the world of homebrew radio is forever producing new ideas. One such project came to our attention recently, the Minima, an all-band HF SSB transceiver. It’s an interesting device for ...

Abstract: The performance of systems using high frequency (HF) radio waves, such as over-the-horizon radars (OTHR), can be strongly affected by external interferers at great distances (thousands of ...

Abstract: Measurements have been made over a 255 km radio path between Durham and Leicester in the UK in order to investigate the potential applicability of multiple input multiple output (MIMO) ...

The code implements several functions for setting the transceiver's frequency to different bands, such as 80m, 60m, 40m, etc., within the limits of General Class ham radio operators. Functions connect ...

Or in the case of [MM0OPX] trying to find fly fishing reels that are suitable for his Adjustiwave multi-band VHF-HF ham radio antenna. HF radios allow intercontinental communication but ...

VHF stands for very high frequency, and it refers to the radio waves that range from 30 to 300 MHz. VHF radio is widely used for short-range communication between ships, coast stations, and aircraft.