Feltkildeudstyr

Feltkildeudstyr, literally “field source equipment,” refers to the ensemble of devices that generate, process, and transmit audio signals for live performances and events outside conventional studio settings. The term is most commonly used in Danish-speaking regions of Scandinavia and covers both wired and wireless systems designed to meet the demands of concert venues, conferences, churches, and temporary stages.

Typical feltkildeudstyr includes microphones, preamplifiers, digital signal processors (DSPs), mixing consoles, audio interfaces, and wireless transmitters/receivers. In a wireless configuration, a microphone or instrument input is coupled to an encoder that sends a radio frequency (RF) signal to a receiver placed near the stage or on a boom. This eliminates cabling and allows performers greater mobility. Wired systems, on the other hand, rely on XLR or TRS cables to carry analog or digital audio signals from the source to the amplifier or loudspeaker system.

Modern feltkildeudstyr often incorporates error‑correction protocols, low‑latency switching, and power‑over‑Ethernet (PoE) capabilities for convenience. Many manufacturers offer modular solutions where users can add or remove components—such as additional wireless channels, on‑board effects units, or integrated speakers—according to the specific requirements of a gig or venue.

Regulatory compliance is a key consideration. In Europe, RF transmitters used in feltkildeudstyr must obtain authorization from national telecom authorities and adhere to frequency allocation rules defined by the European Telecommunications Standards Institute (ETSI). Power output limits and interference avoidance procedures are enforced to protect other radio services.

Use of feltkildeudstyr has grown with the rise of small independent artists and event production companies that demand reliable, portable audio setups. Continued advancements in digital audio coding and low‑power RF technology are expanding the reach and flexibility of field source equipment, making it a vital component of contemporary live sound production.