GNU AIS - Automatic Identification System for Linux.
The Comprehensive GNU Radio Archive Network (CGRAN) SDR Tube - Education and Entertainment. Rtl_fm Guide: The long lost documentation. Updates for rtl_fm overhaul Rtl_fm is a little utility I wrote for the rtl-sdr project.
The program was made to fill a gap in software defined radio: all the computers weaker than a Pentium 4. Basically, an Atom processor processor does not have enough oomph to demodulate something as simple as narrow band FM using the standard tools. (Recently a high performance FM demodulator was released, Simple FM but it works only passably on newer Atoms.) So rtl_fm was written with one goal, efficiency, in mind. The very first version ran with plenty of cycles to space. Rtl_fm is a general purpose analog demodulator. Throughout this guide, I'll be using Sox's play command to play the audio. Before starting, make sure your dongle works.rtl_test should return a list of supported gain values and not produce error messages. It is also very important to always make sure rtl_fm and Sox are both set to use the same data rate. Music on the Radio This will tune to a broadcast FM station. Police Scanner. Rtl_fm Guide: The long lost documentation. Software Defined Radio.
SDR-RADIO.com is a Windows console for Software Defined Radio (SDR) receivers and transceivers. Designed for the commercial, government, amateur radio and short-wave listener communities, the software provides a powerful interface for all SDR users. SDR-RADIO.com GmbH is working very closely with RFspace Inc. of Atlanta, Georgia, USA to bring you the best SDR experience available today. Gnuradio吧. HamTestOnline™ Note: In 2007 the FCC eliminated the Morse code requirement for all classes of amateur radio licenses. Of course, while there are no more Morse code exams , l ots of ham radio operators still use Morse code, and you're free to join in. Read reviews on eHam of various Morse code tutoring programs (including some excellent free ones). Once you've learned the code, a great way to improve your speed is to practice by contacting other newbies. There's always someone calling a slow CQ in the Novice segments, and they're as eager to practice as you are.
I say it doesn't matter how fast you copied the code when you took your amateur radio exam — what matters is how often you use it today. 聯絡資料 - 中華業餘無線電研究會. RTL-SDR. RTL-SDR community on Reddit. A subreddit dedicated to the RTL-SDR project , which can make certain cheap Realtek RTL2832U based USB TV tuners function as general purpose software defined radio (SDR) receivers.
Feel free to ask questions, start discussions or post news, articles, etc. (Subscribe via the link above, and post via the link lower down) Frequency range 1 : 22 - 2200 MHz (max) Sample rate: 3.2 MS/s (max) Resolution: 8 bits/sample Noise figure 1 : < 4.5 dB Software support: GNU Radio, Winrad, HDSDR, etc. Receivers implemented: AM/FM, GSM, P25, ADS-B, TETRA, GMR, GPS, etc. GNU Radio. GNU Radio Project members: Zhifeng Chen, Ke-yu Chen Advisor: Prof.
Dapeng Oliver Wu || Introduction || Background || Result || Download || Related Work || Useful Links || Introduction. Rtl-sdr on Ubuntu. It was recently discovered that several cheap DVB-T usb dongles could be configured to be used as cheap ham radio receivers. Follow along with the discussions here: or find some of the useful software here: I picked up one of the compatible receivers from ali-express:
Dump1090 program. R820T Archives. Over on the SDRSharp Yahoo group, HB9AJG has posted an interesting report in a PDF file containing some measurements (Note you will need to be a member of the group to download the file titled “Some Measurements on E4000 and R820 Tuners.pdf”.
Here is a Direct Mirror of the file.) quantifying the performance of both the E4000 and R820T RTL-SDR DVB-T dongles. See the discussion in the Yahoo group here. These results confirm the feeling that many RTL-SDR users have had: that the E4000 is more sensitive in the lower frequencies, and that the R820T is more sensitive in the higher frequencies, which is why it is recommended for ADS-B.
The results also show that the R820T is better in terms of Image Rejection and Internal Signal Birdies. Image Rejection Because the E4000 is a Direct Conversion Receiver, it has an Image Rejection problem. EarToEarOak/RTLSDR-Scanner. YouTube. Welcome to JoshKnows.com. 哈罗CQ火腿社区 - Powered by phpwind. GNSS-SDR - An Open Source Global Navigation Satellite System Software Defined Receiver.
Sdr-radio-com : SDR-RADIO.com. How To Build an FM Receiver with the USRP in Less Than 10 Minutes. Guruofquality/grextras. TerraTec Cinergy T Stick+ An DVB-T USB stick from TerraTec.
The TerraTec Cinergy TStick+ 0ccd:00d7 is supported under Linux since kernel 3.7 (source Antti Palosaari) Overview/Features USB interface Inputs: Antenna (Coaxial), Infrared Remote Components Used Other Images TerraTec Cinergy TStick+ box.jpgTerraTec Cinergy TStick+ box TerraTec Cinergy TStick+ antenna.jpgTerraTec Cinergy TStick+ antenna Identification Making it Work In case you have an earlier kernel version than 3.7, you might build the module as follow: First check that you have the right device.
GNSS-SDR - An Open Source Global Navigation Satellite System Software Defined Receiver. Introduction This article describes what is probably one of the cheapest ways for experimenting with real-life signals and GNSS-SDR.
This is product from a combined effort of many people, so let us only mention (to our knowledge) the very original source, the V4L/DVB kernel developer Antti Palosaari, who discovered an undocumented operation mode for some USB DVB-T dongles based on the Realtek RTL2832U chipset, enabling them to be used as a cheap Software Defined Radio (SDR) front-end. The key feature is that the chip allows transferring raw I/Q samples to the host, that in principle is the responsible for DAB/DVB+/FM demodulation. This is great news for a GNSS software receiver, since it covers the targeted frequency bands.
The RTL2832U outputs 8-bit I/Q-samples with a baseband sample-rate up to 3.2 MSPS, according to the specifications. The GNSS Galileo E1 and GPS L1 links are centered at 1575.42 MHz, and this band is covered by the E4000 tuner IC. OsmoSDR driver support Bibliography. Kochmorse - Koch Morse Tutor for Linux. KochMorse is a easy to use morse tutor (trainer) for Linux using the Koch-mehtod.
It provides a clean and modern graphical interface. The current release (version 0.99.x) is full featured and stable. I've tested it under Fedora and Ubuntu and it works well. TV28Tv2DVB-T(R820T)国産水晶振動子( Xtal MADE IN JAPAN)交換のススメ 周波数のズレ大幅に改善！ : KG-ACARS HFDL VDL MCAに感謝 受信方法 受信記録のブログ. You can see the difference by comparing the substrate is the difference between a USB TV tuner E4000 R820T crystal oscillator mounting method. (TV28Tv2DVB-T is recommended solder fix) Blog: Thanks receiving method receiving record in KG-ACARS HFDL VDL MCA. I tried to replace USB TV tuner TV28Tv2DVB-T (R820T) MCX (J) → BNC to (J). : The blog of appreciation reception reception method recorded in the KG-ACARS HFDL VDL MCA. RTL2832 Software Defined Radio. Updated 04/12/2014 Software defined radio (SDR) hardware is becoming smaller AND more capable.
For many years, the king of small SDRs was the Softrock Radio. With a combination of surface mount and conventional discrete components, it offered high performance and small size. Miniaturization took a large leap ahead in mid 2010 when the Funcube Dongle was introduced. It incorporated more functions onto a single chip than the Softrocks and hinted at the possibilities in a coming wave of USB based digital television and radio tuners. Gr-air-modes – The Comprehensive GNU Radio Archive Network (CGRAN) Bistromath/gr-air-modes. 哈罗CQ火腿社区 - 卫星和空间通信 - 教程来了-rtl-sdr,RTL2832+E4k tuner电视棒跟踪飞机轨迹(1090MHz ADS-B/TCAS/SSR信号) - Powered by phpwind.
详细教程在这个帖子 32楼! Phasor - Phased Array Processing for Software Defined Radio. ATPDEC Home Page. Software-defined Radio on a Shoestring. Software-defined radio (SDR) holds incredible promise for the future of communications: from reducing the bill of materials and enabling software upgrade of equipment, to cognitive radio systems that bring unprecedented efficiency in managing access to scarce spectrum resource. However, most hardware platforms that enable SDR experimentation are expensive or else limited to some specific use. But this is no longer the case and due to a neat hack it's possible to re-purpose hardware that can be had for less than £20, to provide an RF front-end that can be tuned from 64-1700 MHz and to provide sample rates of up to 2.8 MS/s. Firstly, it's important to note that if you require a system with high resolution ADCs or one that supports transmit as well as receive, this may not be what you're looking for. But if you have basic Linux skills and would like to gain hands on experience with SDR for minimal outlay, this provides incredible value for money.
Index. WRPLUS. HDSDR Homepage. RTLSDR: My First SDR! « AndrewNohawk. A few weeks ago (I’ve been meaning to do this post for ages, few weeks ago is give or take 2 months) there was a post on reddit regarding a new software defined radio that cost around $20. After reading a few topics on the discussion (now all avail at now ) my interest was peaked. RF was a whole new world of WTF for me. I think it offers the same awe and wonder that I had putting a tape into my very first tape into my vomit brown fischer-price tape player: The basic gist of how it all works is as follows: * There is a common chip found in video cards known as an RTL2832U * This chip is commonly used for specific frequencies used for Television signals (and then software decodes this so you could watch TV on your pc) * A bunch of cool guys ™ found a way to read the data coming into the card directly with drivers * These cards also offered some tuners that allowed tuning beyond the basic TV ranges.
GNU Radio Blog. One of the great advantages of software defined radio receivers is that tuning receiver settings is a matter of adjusting software parameters.
Gqrx is no different here and has optimal settings built in for weather satellite reception. This tutorial describes how to receive automatic picture transmissions (APT) from NOAA weather satellites using Gqrx SDR , record them to a WAV file, and finally decode the images using the free and open source Atpdec decoder. Simple DVB with Gstreamer and GNU Radio - MyLabWiki. From MyLabWiki This article describes a simple video broadcasting setup based on Gstreamer , GNU Radio and the Universal Software Radio Peripheral (USRP) . It does not (yet) provide any DVB-T or DVB-S compatible system — just a simple way to get your webcam on the air!
Overview The objective is to create a simple digital video broadcasting setup using easily available components as illustrated on the figure below. The long term goal is to get a similar setup up to near space and LEO . UVC Webcam. Connecting a world of audio. Linux Software [rtlsdr.org wiki] Realtek. Osmocom.org git repositories. Software Defined Radio (SDR) on the EzTV645 w/ RTL2382U and FC0013. Due to much of my own issues with setting this USB dongle up, I thought it should take the time and write my own version of the installation. Take note that this installation is for Windows 7, and not linux (if that wasn’t already apparent). I will also list all of my references below, which may end up solving some problems people were having. First find a place to order the dongle at a reasonable price. I got mine from DealExtreme at a price of just shy under $20. Shipping time wasn’t the best since it’s from overseas, but this was a side project and didn’t really matter much to me.
The first thing you want to do is to check the chipset in your device. A few things you need to download prior to starting: Zadig So if Windows installed some of it’s own drivers in one of the previous steps, that is OK as we are going to replace them right now. Click the “Replace Driver” button. Note that if you insert the dongle into a different USB port you may have to use Zadig again. GNSS SDR Toolkit for MATLAB® Www.sbrac.org/files/build-gnuradio. BasicExam. Amateur Radio Exam Generator - Spectrum Management and Telecommunications. ExHAMiner. RTL2832U - SpenchWiki. SDR-J. RTL-SDR - thecraag.com. YouTube. Upconverter - opendous - MF/HF Converter for Receivers - Open Hardware designs and related works by Opendous Inc.
Ghpsdr3 SDR project. Homepage. REDHAWK. How to Make a $19 Police Radio Scanner. GRC Examples. Adding ADS-B, ACARS, and ATC Audio to PlanePlotter Using Multiple RTL2832U Sticks. PlanePlotter from COAA. Rtl1090.web99.de. Skykooler/radiobird. Hacking the Raspberry Pi: Wearable computer and software defined radio. GNU Radio - GNURadioCompanion - gnuradio.org. RTL2832 / RTL2838 DVB-T. Linux: Multimon Radio Transmission Decoder. PWN SDR: RTL-SDR for Pwn Plug. Embrtlsdr. OpenLTE / Home / Home. GNU Radio Projects. GNU Radio Blog. Csete/gqrx. Software radio. Gr-osmosdr - Gnuradio block to work with OsmoSDR and rtl-sdr. RealTek RTL2832U. Free software downloads. GNSS-SDR: gnss-sdr-developers. RDS reception using SDR. Flightradar24.com - Live flight tracker! How to Make a $19 Police Scanner. Search - #gnuradio. Rtl-sdr – OsmoSDR. RTL2832U _淘寶搜索.
The ultimate software for your SDR station. Untitled Document. Software Defined Radio Resources. Research - Products. Balint256/gr-rds. RTL2832U - SpenchWiki. Gr-baz - SpenchWiki. Raspberry Pi as Remote Server for RTL2832u SDR. GNU Radio working - finally. GNU Radio - WikiStart - gnuradio.org. Pinkavaj/rtl-sdr. RTL-SDR monitors ADS-B with ADSB# and adsbScope.