This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Transmission line ====== A **transmission line** carries radio-frequency energy between components. In an amateur radio station, the line connecting a transceiver and an antenna is commonly called the **feed line**. ===== Types ===== Coaxial cable is widely used because its shielding and routing are convenient. Balanced lines are another option. The suitable line depends on frequency, the installation and the equipment being connected. ===== System performance ===== Loss, characteristic impedance, connectors and weather protection affect the complete system. The length and condition of the line should be recorded when reporting antenna measurements. A low [[standing_wave_ratio|standing wave ratio]] is useful, but does not by itself establish antenna efficiency or low feed-line loss. ===== See also ===== * [[antenna|Antenna]] * [[amateur_radio_station|Amateur radio station]]
