Disadvantages of videotapes include the fact that they are not interactive. In addition, they wear out with continual use and can be costly to send via the mail. When using videotapes for instruction, be sure to record them using the best equipment available. If possible, employ professional videographers and editors to achieve professional quality. Interactions through voicemail, e-mail, fax, or other means should also be encouraged.
Satellite transmission is one of the oldest, most established techniques for videoconferencing.
Two sets of equipment are needed for satellite systems. Configuration for satellite videoconferences. When satellite videoconferences are used for distance learning, a studio classroom must be properly wired for the lighting, microphones, and cameras needed to produce an acceptable lesson. The cameras are usually connected to a control room, where one or more technicians control the signals. The resulting television signal is then sent to the uplink transmitter.