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RTL-SDR V3 Receiver Dongle (hardware modded R820T2/RTL2838U DVB-T Tuner Dongles) [94] Pre-built and pre-modded with custom driver 0.5 – 1766 MHz (mod: RTL2832U Q-branch pins soldered to antenna port) [95] Matches sampling rate, but with filter roll-off 8 No 2.4 MHz (can go up to 3.2 MHz but drops samples) 1 ? USB Yes Yes Yes SDRplay: RSP1A [96]
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]
HackRF One is a wide band software defined radio (SDR) half-duplex transceiver created and manufactured by Great Scott Gadgets. It is able to send and receive signals. Its principal designer, Michael Ossmann, launched a successful Kickstarter campaign in 2014 with a first run of the project called HackRF. [1]
Used in some DVB-T USB dongle TV receivers, namely the RTL-SDR ones used for software-defined radio. UART clock allows integer division to common baud rates up to 14,400(×16×125) or 28,800(×8×125). 29.4912 921600 UART clock allows integer division to common baud rates up to 921,600(×16×2). 29.50 SDTV
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.
A cognitive radio (CR) is a radio that can be programmed and configured dynamically to use the best channels in its vicinity to avoid user interference and congestion. Such a radio automatically detects available channels, then accordingly changes its transmission or reception parameters to allow more concurrent wireless communications in a given band at one location.
A direct-conversion receiver (DCR), also known as a homodyne, synchrodyne, zero intermediate frequency or zero-IF receiver, is a radio receiver design that demodulates the incoming radio signal using synchronous detection driven by a local oscillator whose frequency is identical to, or very close to the carrier frequency of the intended signal.
Techniques known since the 1940s and used in military communication systems since the 1950s "spread" a radio signal over a wide frequency range several magnitudes higher than minimum requirement. The core principle of spread spectrum is the use of noise-like carrier waves, and, as the name implies, bandwidths much wider than that required for ...