by svarc_admin | Aug 10, 2026
A very common type of cable used to connect radios and antennas. It contains a center conductor surrounded by insulation, shielding, and an outer jacket.Different types of coax have different amounts of signal loss, particularly as frequency and cable length...
by svarc_admin | Aug 10, 2026
The basic radio-frequency signal that can be changed, or modulated, to carry voice, data, or other information.You usually do not need to think much about carriers during everyday operation, but the term appears frequently when learning how radio works.
by svarc_admin | Aug 10, 2026
The amount of frequency space occupied by a radio signal. Different modes use different amounts of bandwidth; a voice transmission, for example, generally occupies more spectrum than a narrow CW signal.
by svarc_admin | Aug 10, 2026
A range of radio frequencies grouped together for a particular type of use.Ham radio operators commonly refer to bands by approximate wavelength rather than frequency, such as the 2-meter, 70-centimeter, 40-meter, or 20-meter bands.
by svarc_admin | Aug 10, 2026
A device used to help a transmitter work properly with an antenna system by matching the electrical impedance seen by the radio.Despite the name, it does not physically change the antenna or make an inefficient antenna magically efficient. It changes the electrical...
