by svarc_admin | Aug 10, 2026
A term that can mean several different things in radio and electronics depending on context.It may refer to an electrical safety ground, an RF ground, the common reference point in a circuit, or part of a lightning-protection system. These are related concepts, but...
by svarc_admin | Aug 10, 2026
A way of describing how effectively an antenna concentrates radio energy in particular directions compared with a reference antenna.More antenna gain does not mean the antenna creates extra power. It means more of the available energy is directed where the antenna is...
by svarc_admin | Aug 10, 2026
The specific location within the radio spectrum where a signal is transmitted or received.Frequency is measured in hertz, although amateur radio frequencies are normally expressed in kHz, MHz, or GHz. An example is 146.520 MHz.
by svarc_admin | Aug 10, 2026
The cable or transmission line connecting a radio to an antenna. Coaxial cable is the most familiar type, although other kinds of feed line are also used.
by svarc_admin | Aug 10, 2026
The part of a radio system that sends radio-frequency energy into the air when transmitting and receives radio signals when listening.Antennas come in many shapes and sizes because different designs work better for different frequencies and purposes.
