Editing Remote broadcast (section)

==Radio==
In [[radio]], remotes are often used for special events, such as concerts or sporting events, where either the entire event or advertisements for the event are broadcast on location. The cost of personnel and equipment is usually paid for by the host at each performance. However, if the event is recurring, such as a weekly broadcast from a [[nightclub]], then dedicated lines are usually installed by the local telephone company in order to save on costs. With low range radio stations, and at events with no telephone lines, several radio stations will call into the studio request line with a cell phone and microphone setup. From there, another DJ in the studio will put them on-location live on the air via the studio request line. Some stations use this method when doing live broadcasts in areas where the signal is weak.

Originally, [[analog audio]] broadcasts were sent through [[telephone hybrid]]s, which, although low quality, were found to be acceptable for voice broadcasts. Later, [[frequency extender]]s were developed that used additional lines, shifting higher [[Treble (sound)|treble]] [[audio frequencies]] down on one end and back up on the other, providing a reasonable reproduction of the original [[sound]]. Currently, digital lines, such as [[ISDN]] or [[DSL]], are used to send [[audio data compression|compressed]] [[digital audio]] back to the studio.  In addition, modern remote pickup units have become extremely portable and can transmit single-channel [[monaural|monophonic]] [[FM broadcasting|FM]]-quality audio over regular telephone lines using built-in modems and advanced compression algorithms ([[MPEG-4]], etc.).  See [[POTS codec]].