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Software-defined radio (SDR) is a radio communication system where components that conventionally have been implemented in analog hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a computer or embedded system. [1]
Universal Software Radio Peripheral (USRP) is a range of software-defined radios designed and sold by Ettus Research and its parent company, National Instruments. Developed by a team led by Matt Ettus , the USRP product family is commonly used by research labs, universities, and hobbyists.
SmartDraw image file format, with file extension .sdr; Software-defined radio, enabling computers to tune a wide spectrum of radio frequencies, using software instead of hardware for modulation and demodulation; Sony Dream Robot, later dubbed QRIO; Sparse distributed representation, in machine intelligence; Standard dimension ratio in pipe ...
Elektor SDR [38] Bare PCB and pre-built 150 kHz – 30 MHz ? No Soundcard ADC: 48, 96, and 192 kHz 0/1 USB Yes Yes Yes Elektor AVR SDR [39] Kit and pre-built up to 1 MHz in undersampling ? up to 15 kS/s 0/1 UART via RS2-232 converter or USB bridge Yes Yes Yes ELAD FDM-S1 [40] Pre-built 20 kHz – 30 MHz, up to 200 MHz in undersampling
A 'talkgroup' is an assigned logical group of users on a trunked radio system. Unlike a conventional radio which assigns users a certain frequency, a trunk system uses a number of frequencies allocated to the entire system.
The SCA is published by the Joint Tactical Networking Center (JTNC). This architecture was developed to assist in the development of Software Defined Radio (SDR) communication systems, capturing the benefits of recent technology advances which are expected to greatly enhance interoperability of communication systems and reduce development and deployment costs.
A short-range device (SRD), described by ECC Recommendation 70-03, is a radio-frequency transmitter device used in telecommunication that has little capability of causing harmful interference to other radio equipment.
Despite being able to transmit and receive data, the whole unit is colloquially referred to as a "receiver". On a mobile telephone or other radiotelephone, the entire unit is a transceiver for both audio and radio. A cordless telephone uses an audio and radio transceiver for the handset, and a radio transceiver for the base station.