At present, portable receivers generally use ferrite rod antennas for LF and MF (below 2 MHz), and whip antennas for HF (up to 30 MHz). Each type has proved effective in its particular application.

Could there be a worse fate for a guy with a Swiss accent than to be subjected to a clock that’s seconds or even – horrors! – minutes off the correct time? Indeed not, which is why [The Guy With the ...

The circuit is intended to produce a simple antenna that has the capability to be tuned at medium wave frequency which complements the antenna of a radio receiver, without having to use any external ...