Communications devices, equipment, and systems transmit data in electronic form using either cabling or radio signals.
Automated Voice Answering Systems (102 suppliers)
Automated voice answering systems are used to take messages and to provide automated information retrieval requests.
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Fax Machines (17 suppliers)
Fax machines are used to send and receive documents that are transmitted as a stream of audio data over a telephone line.
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GPS Instruments and Devices (347 suppliers)
Global positioning system (GPS) instruments and GPS devices are radio-navigational devices that provide accurate position information about objects on Earth, based on information from orbiting satellites.
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Intercoms (265 suppliers)
Intercoms are an electronic communications system generally composed of fixed microphone/speaker units connected to a central control device.
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Magnetic Receivers (5 suppliers)
Magnetic receivers use the electromagnetic principle to receive and analyze signals. The simplest of these devices is the telephone.
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Navigational Instruments (203 suppliers)
Navigational instruments include products such as distance meters, range finders and mapping systems.
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Pagers (49 suppliers)
Pagers are electronic communications devices that are used to notify or alert a user about an event. They beep, vibrate, flash, display text, and use other alerts or methods of notification.
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Phone Switchboards (64 suppliers)
Phone switchboards are used for routing telephone calls and adding advanced features to telephone systems.
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Radar Systems and Products (170 suppliers)
Radar systems and radar products have synchronized transmitters and receivers that send radio waves and detect their reflections from objects, surfaces or sub-surface structures.
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Radios (399 suppliers)
Radios are communication systems that send and/or receive electromagnetic waves. Devices such as citizens’ band (CB) radios, walkie-talkies, and handie-talkies are two-way radios that can be used for interpersonal communications.
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Telephone Components and Accessories (502 suppliers)
Telephone components and telephone accessories are used in telephone systems.
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Telephones and Cellular Phones (582 suppliers)
Telephones and cellular phones convert voice or other sound signals into a form that can be transmitted to another device that receives and reconverts the waves back into sound.
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