Computers - Individual and networked computers are often used with an electronic delivery system. ITFS transmits both visual and sound components of a program directly to users. Specialized antennas or receivers collect the signals. Audio interactivity requires the use of telephones or fax. Like direct satellite broadcast, microwave transmission requires special transmitters and receivers.
Many microwave systems are capable of two-way audio and video transmission.
This allows immediate interactivity between sites. Telephone - Telephone lines can transmit voice, slow scan television and data signals and are an important part of many systems. Students at both origination and reception sites may receive university, high school, Applied Technology Center, AP, or concurrent enrollment credit. Inservice Workshops - Courses geared to working professionals are available for credit, professional development, or advancement. It can be used to observe a demonstration or practice situation.