Max Bandwidth: 3.2 MHz / 2.4 or 2.8 MHz max stable. 24 MHz – 1766 MHz (below 24 MHz available on V3 dongles) R820T RTL2832U a.k.a RTL-SDRįrequency Range: approx. We define general use SDRs as ones with a wide frequency range and with no focus on any specific frequency band. Preselectors: Analogue filters on the front end to help reduce out of band interference and imaging. RX/TX: Can the radio receive and/or transmit. Instantaneous Bandwidth: The size of the real time RF chunk available. Some SDR’s give their resolution in ENOB which stands for effective number of bits. More resolution means more dynamic range, less signal imaging, a lower noise floor, more sensitivity when strong signals are present and better ability to discern weak signals. New software defined radio (SDRs) products are popping up every few months these days so we thought we’d compile a big list of available SDRs as there are a few people who were bitten by the RTL-SDR bug and are now looking to upgrade.įor each SDR we compare the cost, frequency range, ADC resolution, maximum instantaneous bandwidth, whether or not it can TX and if it has any pre selectors built in. Here is a quick guide to what some of these metrics mean.įrequency Range: The range of frequencies the SDR can tune to.ĪDC Resolution: Higher is better.
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