AT&T Long Lines Technology and Equipment

Switching

Analog Frequency Division Multiplexing

Frequency Control

Microwave Radio

General Information

Transmitter-Receivers

Data Transmission

Alarm and Control

Antenna Systems

Delay Lens Antennas

Horn-Reflector Antennas

Systems Combining Networks

Waveguide

Towers

Coaxial Cable

Alarm, Control, Testing and Monitoring

The L4 Remote Control Center

Maintenance, Repairs and Emergency Restoration

Communications Satellites

The Testboard

The Power Room

Wire-Pair (non-coaxial) Carrier Systems

Local Loop (Exchange) Plant

Related Technologies

Support Systems

Mobile Communications

The Picturephone

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Updated on April 15, 2014 at 08:47 by Albert LaFrance