It uses only 2 transistors and few passive components which makes is very easy to be constructed. Although the circuit is very simple, it functions very well without external antenna or ground ...

It used to be homebrew ham gear meant something simple. A couple of active devices that could send CW. Maybe a receiver with a ... audio board that makes it easy to connect audio inputs and ...

The bandwidth and thus audio quality at these frequencies puts them at a disadvantage against FM and internet streamed services, and the long-distance advantage of HF has been reduced by easy ...

A typical portable receiver uses a ferrite rod antenna for LF/MF reception, and a telescopic whip for HF. The HF whip may drive an untuned low-noise amplifier. This paper shows how to calculate ...

Also to be discussed are Boeing 787 HF receiver issues, the European VHF Data Link Mode 2 (VDL Mode 2) infrastructure and global aircraft tracking. Ahead of the conference, Avionics caught up with ...