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+ - Startup kick-starting a high-bandwidth Software Defined Radio (SDR) peripheral 2

Submitted by TwineLogic
TwineLogic (1679802) writes "Many Slashdot readers have been enjoying the availability of $20 USB radios which can tune in the range of 50MHz-2GHz. These devices, while cheap, have limited bandwidth (about 2MHz) and minimal resolution (8-bit).

Nuand, a new start-up from Santa Clara, wants to improve on that. Their Kickstarter proposal for bladeRF, a Software Defined Radio transceiver, will support 20MHz bandwidth and 12-bit samples. The frequency range to be covered is planned as 300MHz-3.6Ghz. In addition to the extended spectrum coverage, higher bandwidth, and increased resolution, the bladeRF will have an on-board FPGA capable of performing signal processing and an Altera processor as well.

SDR hobbyists have been using the inexpensive receivers to decode airplane data transmission giving locations and mechanical condition, GPS signals, and many other digital signals travelling through the air around us. This new device would extend the range of inexpensive SDRs beyond the spectrum of 2.4GHz Wi-Fi. In addition, the peripheral includes a low-power transmitter which the experimenter can use without needing a "Ham" license."
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Startup kick-starting a high-bandwidth Software Defined Radio (SDR) peripheral

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  • I wanted to correct my submission by adding: the actual bandwidth (amount of spectrum which can be processed at any one instant) is 28MHz, not 20.

    The 40 M samples per second are quadrature samples, allowing 40 MHz bandwidth within the Nyquist limit, and there are internal low-pass filters limiting the bandwidth to 28MHz. Not pushing the sampling to the limit of Nyquist is a good thing -- the signals which are passed will be sufficiently sampled that none can slip by undetected.

    With this large bandwidth
  • We at Nuand are very excited to have made it here on Slashdot! We just wanted to post up a comment that we also left on the Kickstarter page addressing the concerns of those interested in frequencies under 300mhz: The usable frequency range of the bladeRF does indeed start at 300MHz but goes up to 3.8GHz. Having one (or even two) front-ends spanning this many octaves is a challenge, however the bladeRF performs exceptionally well over the entire range. That however may not have been the case had we include

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