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Frequently, the argument was to bypass wired local loops in order to save money or backup weak copper cables. In 1987, Microwave Bypass modified a high-frequency licensed microwave radio (23GHz) and developed the first 802.3 wireless interface, dubbed the EtherWave Transceiver. The result was the first (FCC licensed) point-to-point microwave ...
For analog audio and analog video these functions are all represented in a single signal specification like NTSC or the direct speaker-driving signal of analog audio. Physical characteristics of the electrical or optical equipment include the types and numbers of wires required, voltages, frequencies, optical intensity, and the physical design ...
DECT Interface Unit (DIU) This is a 1000 line exchange provides E1 interface to the PSTN. This can cater up to 20 base stations. These base stations are interfaced through ISDN link which carries signals and power feed for the base stations even up to 3 km. Compact Base Station (CBS) This is the radio fixed part of the DECT wireless local loop.
The term "local loop" is sometimes used for any "last mile" connection to the customer, regardless of technology or intended purpose. Local loop interrelations in this sense include: Electric power lines. Cable connections used with television, internet and telephone. Wireless signals or local loop (WLL): LMDS, WiMAX, GPRS, HSDPA, DECT
Balanced audio is a method of interconnecting audio equipment using balanced interfaces. This type of connection is very important in sound recording and production because it allows the use of long cables while reducing susceptibility to external noise caused by electromagnetic interference.
An audio interface is a piece of computer hardware that allows the input and output of audio signals to and from a host computer or recording device. Audio interfaces are closely related to computer sound cards , but whereas sound cards are optimized for audio playback an audio interface is primarily intended to provide low-latency analog-to ...