single-frequency device
81Multi-user MIMO — In radio, multi user MIMO (MU MIMO) is a set of advanced MIMO, multiple input and multiple output (pronounced mee moh or my moh), technologies that exploit the availability of multiple independent radio terminals in order to enhance the… …
82Channel (communications) — Old telephone wires are a challenging communications channel for modern digital communications. In telecommunications and computer networking, a communication channel, or channel, refers either to a physical transmission medium such as a wire, or …
83Terahertz radiation — Electromagnetic waves sent at terahertz frequencies, known as terahertz radiation, submillimeter radiation, terahertz waves, terahertz light, T rays, T light, T lux and THz, are in the region of the electromagnetic spectrum between 300 gigahertz… …
84Radar jamming and deception — is the intentional emission of radio frequency signals to interfere with the operation of a radar by saturating its receiver with noise or false information. There are two types of radar jamming: Mechanical and Electronic jamming . Mechanical… …
85Digital Signature Transponder — The Texas Instruments Digital Signature Transponder (DST) is a cryptographically enabled radio frequency identification (RFID) device used in a variety of wireless authentication applications. The largest deployments of the DST include the Exxon… …
86Power control — Power control, broadly speaking, is the intelligent selection of transmit power in a communication system to achieve good performance within the system. The notion of good performance can depend on context and may include optimizing metrics such… …
87Transverter — A transverter is a radio frequency device that consists of an upconverter and a downconverter in one unit. Transverters are used in conjunction with transceivers to change the range of frequencies over which the transceiver can… …
88Studio monitor — This article is about studio reference loudspeakers. For onstage monitor speakers for live performances, see foldback (sound engineering). Not to be confused with Broadcast reference monitor. Studio monitors, also called reference monitors, are… …
89Rotary dial — A German Fe TAp 615, (R g) a widespread rotary dial telephone of the 1960s to the 1980s The rotary dial is a device mounted on or in a telephone or switchboard that is designed to send electrical pulses, known as pulse dialing, corresponding to… …
90Spread spectrum — Passband modulation v · d · e Analog modulation AM · …
