Program links fall into three main categories as follows:
• Contribution links for sending news contributions and other remote production material to a network or studio center
• Network distribution links for distributing network program feeds to multiple locations around the country
• Studio-transmitter links (STLs) for connecting a station studio center to its transmitter site
Several types of links are used for each category for radio and television, based on different technologies. This gets to be a complex subject, so we will only deal with the main principles here.
Contribution Links for Radio
Standard telephone lines are probably the easiest links to set up, and therefore are often used for news reporting. ...