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325 MHz – 3.8 GHz (70 MHz – 6 GHz with software modification [16]) 20 MHz (streaming may be less due to USB 2.0) 12 12 Yes 61.44 MSPS 1/1 USB 2.0, Ethernet & WLAN with USB-OTG adapter Yes Yes Yes Xilinx Zynq Z-7010 AFEDRI SDR [17] Pre-built Active 30 kHz – 35 MHz, 35 MHz – 1700 MHz 2.3 MHz 12 No 80 MSPS 0/2 USB 2.0, 10/100 Ethernet
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]
The OpenHPSDR (High Performance Software Defined Radio) project dates from 2005 when Phil Covington, Phil Harman, and Bill Tracey combined their separate projects to form the HPSDR group. [1] It is built around a modular concept which encourages experimentation with new techniques and devices (e.g. SDR , Envelope Elimination and Restoration ...
A software GNSS receiver is a Global Navigation Satellite System (GNSS) receiver that has been designed and implemented using software-defined radio.. A GNSS receiver, in general, is an electronic device that receives and digitally processes the signals from a navigation satellite constellation in order to provide position, velocity and time (of the receiver).
Free firmware [note 2] License Development Free software [note 3] ath [69] [70] Atheros AR5211/ AR5212/ AR5213/ AR5214 Integrated with Solaris Nevada build 29 No firmware required [3] Dual GPL/BSD with proprietary HAL Port of Madwifi No ipw: Intel PRO/Wireless 2100 Community project No BSD: Ported from OpenBSD: Yes iwi: Intel PRO/Wireless ...
The program was initially written by Joe Taylor, K1JT, but is now open source and is developed by a small team. The digital signal processing techniques in WSJT-X make it substantially easier for amateur radio operators to employ esoteric propagation modes, such as high-speed meteor scatter and moonbounce . [ 2 ]
There are potential weaknesses in the implementation of the protocol between the dongle and the copy-controlled software. For example, a simple implementation might define a function to check for the dongle's presence, returning "true" or "false" accordingly, but the dongle requirement can be easily circumvented by modifying the software to always answer "true".
DV-Dongle: The dongle is a USB device with the AMBE codec built in. Amateurs can use this with a personal computer's audio system to communicate over the D-STAR network. This is an option for using D-STAR if there is not a local D-STAR repeater or if there is a repeater but it is not associated with an Internet gateway. [ 36 ]