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SDR software defined radio

Saturday, 03 May 2014 12:43
Software-defined radio - Wikipedia - what was once hardware; is now software.
DVB-T - Wikipedia
Welcome to the rtlsdr.org wiki! [rtlsdr.org wiki]

Software Defined Ham Radio: A Quick little riff on how SDR works
RealTek RTL2832U - LinuxTVWiki - indicates ubuntu dvd-usb-rtl28xxu driver comes out of the box.

blogs, websites, and other SDR resources

Tylerwatt12.com | Blog of Tyler Watthanaphand RTL-SDR - YouTube
Michele's GNSS blog
Computer Radio RF Tech - have your babelfish handy... Try to direct sampling receiver using the front-end board - Computer Radio RF Tech
A very inexpensive Software Defined Radio based on the RTL2832U | The SWLing Post
rtl-sdr.com - A blog about RTL-SDR (RTL2832U) and cheap software defined radio
rtl-sdr and GNU Radio w/Realtek RTL2832U, E4000 and R820T - includes tear downs of many popular sdr's available for purchase on the interwebs.
Software Defined Radio for Mariners
GNSS-SDRLIB: Real Time GPS Positioning with RTL-SDR - rtl-sdr.com
RTLSDR: My First SDR! « AndrewNohawk

comparisions: RTL2832U R820T vs FC0013 vs E4000

More RTL2832U Tuners: Full-Size FC0013, Mid-Size R820T | Gough's Tech Zone
About RTL-SDR - rtl-sdr.com - R820T also is generally regarded as having better performance and sensitivity for most interesting frequencies.

SDR chip datasheets from manufacturers

Realtek RTL2832U - DVB-T COFDM Demodulator + USB 2.0, 2K or 8K mode with 6, 7, and 8MHz bandwidth. FM/DAB/DAB+ Radio Support. 48-pin QFN (6x6 mm2) 3.3V, eight general purpose I/O ports, infra-red port for remote control
Rafael micro R820T - Terrestrial DTV TV Silicon tuner 24-pin 4x4 QFN 3.3V I2C DVB-T, ATSC, DTMB, IRIB and ISDB-T
R820T use ~300mA of 5v USB power while the E4000 devices use only ~170mA.
elonics E4000 - MULTI-STANDARD CMOS TERRESTRIAL RF TUNER QFN32 5x5mm operates at 1.5V tolerates 3.3V I2C

SDR software libraries and software packages

rtl-sdr – OsmoSDR - git clone git://git.osmocom.org/rtl-sdr.git , includes OsmoSDR :: KnownApps
How to build RTL-SDR on Windows x64 | Alessandro Staniscia
Linrad home page. Download Linrad or update Linrad here.
SDR# - Software Defined Radio List of SDRSharp Plugins - rtl-sdr.com
Zadig - USB driver installation made easy
HDSDR Homepage - HDSDR is a freeware Windows application. Radio listening, Ham Radio, SWL, Radio Astronomy, NDB-hunting and Spectrum analysis. HDSDR (former WinradHD) is an advanced version of Winrad
SpenchWiki USRP Interfaces - SpenchWiki-USRP_Interfaces
Software Defined Radio Resources | Ham Radio Science
UHD Start - uhd - Ettus Research LLC - software component that interacts directly with the USRP device is UHD. UHD enables you to deploy software radios on Windows, Linux, or MacOS. Various software frameworks, such as GNU Radio, LabVIEW, MATLAB, and Simulink use the UHD driver to access to USRP device.

Applications of SDR

GNSS-SDRLIB: Real Time GPS Positioning with RTL-SDR - rtl-sdr.com
kevinmehall/rtlsdr-433m-sensor - Decoding Oregon Scientific wireless sensor data with RTL-SDR and GNU Radio
ADS-B with RTL-2832 based USB TV dongles made easy! | Gough's Tech Zone - 1090Mhz Planes equipped with ADS-B emit their position, velocity, time, heading, climb, registration, airframe number, altitude on a regular basis – normally every few seconds.
Hacking fixed key remotes « AndrewNohawk replay/bruteforce attack RTL-SDR, audacity and rfcat - RF ChipCon-based Attack Toolset - Google Project Hosting

SDR as entropy source || atmospheric radio noise for crypto numbers

If you're serious about the cryptographic security of your entropy source, you should probably short, or put a 50 Ohm load on the antenna port, and put the whole assembly in a shielded box. Then you're getting entropy from the thermal noise of the amplifiers which is much harder to interfere with than atmospheric radio.

Both of these are analog entropy sources.
Not Just AstLinux Stuff: High Quality Entropy - rtl_entropy uses atmospheric radio noise from an RTL-SDR dongle to generate entropy. Because the RTL-SDR hardware is able to sample about 3.2 MS/S this translates into about 3.4Mbits/s of entropy.
Comparison of hardware random number generators - Wikipedia
pwarren/rtl-entropy - An entropy generator using SDR peripherals, including rtl-sdr and BladeRF

Amateur Radio - Dave Horner's Website

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Last Updated on Friday, 15 August 2014 20:44