#gnuradio

[andmaybegayer]

oh no I just realized I can build guitar pedal-y audio modulators in gnuradio. There goes my evening.

[jayakody2000lk]

RDS Data Extraction with RFtap and Wireshark

RDS (Radio Data System) is a communication protocol standard used for embedding small amounts of digital information in traditional FM radio broadcasts. It enables radio stations to transmit data such as station identification, program information, and traffic updates. 

To capture and decode RDS data, one method involves using a Software Defined Radio (SDR) along with GNU Radio and RFtap. GNU Radio provides a framework for creating software radios, while RFtap acts as a bridge between GNU Radio and conventional network monitoring and packet analysis tools like Wireshark.

Unfortunately, as of the time of writing, RFtap is no longer being maintained and does not work with the latest version of GNU Radio (version 3.10.10). This post offers guidelines for rebuild and using RFtap with the new GNU Radio release.

This post assumes that the reader has access to DVB-T dongles based on the Realtek RTL2832U and a PC running Ubuntu or Debian Linux. For this, I used an RTL dongle with Rafael Micro R820T tuner and Ubuntu 24.04 LTS release.

As the first step install the following GNU Radio build dependencies into the OS:

sudo apt-get install cmake libboost-all-dev \ liblog4cpp5-dev qtcreator qtbase5-dev \ qt5-qmake python3-cheetah python3-numpy \ python3-pygtk python3-gi python3-gi-cairo \ gir1.2-gtk-4.0

sudo apt install git g++ libgmp-dev swig \ python3-mako python3-sphinx python3-lxml \ doxygen libfftw3-dev libsdl1.2-dev \ libgsl-dev libqwt-qt5-dev libqt5opengl5-dev \ python3-pyqt5 liblog4cpp5-dev libzmq3-dev \ python3-yaml python3-click \ python3-click-plugins python3-zmq python3-scipy \ libcodec2-dev libgsm1-dev libusb-1.0-0 \ libusb-1.0-0-dev libudev-dev \ python3-setuptools

sudo apt install pybind11-dev python3-matplotlib \ libsndfile1-dev libsoapysdr-dev soapysdr-tools \ python3-pygccxml python3-pyqtgraph

sudo apt install libiio-dev libad9361-dev \ libspdlog-dev python3-packaging python3-jsonschema \ python3-qtpy

sudo apt remove swig

Next, clone and build Volk (Vector-Optimized Library of Kernels)

mkdir ~/rf cd rf git clone --recursive https://github.com/gnuradio/volk.git cd volk mkdir build cd build cmake -DCMAKE_BUILD_TYPE=Release -DPYTHON_EXECUTABLE=/usr/bin/python3 ../ make sudo make install sudo ldconfig

After installing the Volk library, we can proceed to build GNU Radio.

cd ~/rf wget https://github.com/gnuradio/gnuradio/archive/refs/tags/v3.10.10.0.tar.gz tar -xvf ./v3.10.10.0.tar.gz cd gnuradio-3.10.10.0 mkdir build cd build cmake -DCMAKE_BUILD_TYPE=Release -DPYTHON_EXECUTABLE=/usr/bin/python3 ../ make -j8 make test sudo make install sudo ldconfig

Now GNU Radio is installed with all necessary components. To enable RTL SDR support, we must build and install Osmocom RTL SDR libraries and SDR components.

cd ~/rf git clone https://gitea.osmocom.org/sdr/rtl-sdr.git cd rtl-sdr mkdir build cd build cmake ../ -DINSTALL_UDEV_RULES=ON make sudo make install sudo ldconfig

cd ~/rf git clone https://gitea.osmocom.org/sdr/gr-osmosdr cd gr-osmosdr mkdir build cd build cmake ../ make sudo make install sudo ldconfig

Before plugging in the RTL-SDR dongle, we need to prevent the kernel modules for the RTL-SDR USB device from being loaded into the kernel and taking ownership of the device. To do this, simply navigate to the /etc/modprobe.d directory and create a file called rtl-sdr-blacklist.conf with the following content:

# This system has librtlsdr0 installed in order to # use digital video broadcast receivers as generic # software defined radios. blacklist dvb_usb_rtl28xxu blacklist e4000 blacklist rtl2832 blacklist rtl2830 blacklist rtl2838

Next, you should clone and build the FM RDS/TMC transceiver module for GNU Radio.

cd ~/rf wget https://github.com/bastibl/gr-rds/archive/refs/tags/v3.10.tar.gz tar -xvf ./gr-rds\ -v3.10.tar.gz cd gr-rds-3.10 mkdir build cd build cmake .. make sudo make install sudo ldconfig

For the next steps, we need to have Wireshark and RFTap. Wireshark can be installed using a package manager.

sudo apt-get install wireshark

To run Wireshark without requiring root user permissions, use the following set of commands:

sudo dpkg-reconfigure wireshark-common sudo usermod -a -G wireshark $USER newgrp wireshark

A message may be prompted in the first step above and proceed by selecting the "Yes" option.

Now restart the OS and continue with the RFTap installation.

The official RFTap repository is no longer being maintained and is not compatible with newer versions of GNU Radio. For this step, please use the RFTap fork available in my GitHub repository. This version has been successfully tested with GNU Radio 3.10.10 and Wireshark 4.2.2.

cd ~/rf git clone https://github.com/dilshan/gr-rftap.git cd gr-rftap mkdir build cd build cmake .. make sudo make install sudo ldconfig

Now get the modifier version of rds_rx_rftap.grc from the above repository.

The Wireshark Dissector file for RDS data is also available in the repository. Copy it to the ~/.config/wireshark/plugins directory. Create the directories if they do not exist.

Launch Wireshark and monitor the loopback (lo) adapter. Start GNU Radio and execute the rds_rx.grc file, which was downloaded in the above step.

If all the steps are performed correctly, the RDS data should appear in the packet list pane as UDP messages. The dissected messages can be observed through the packet bytes pane.

[codehunter]

How do I use installed packages in PyCharm?

In PyCharm, I've added the Python environment /usr/bin/python. However,

from gnuradio import gr

fails as an undefined reference. However, it works fine in the Python interpreter from the command line.

GNURadio works fine with python outside of Pycharm. Everything is installed and configured how I want it.

Gnuradio is located at /usr/local/lib/python2.7/site-packages/gnuradio

Also:

PYTHONPATH=/usr/local/lib/python2.7/site-packages:/usr/local/lib/python2.7/site-packages/gnuradio

https://codehunter.cc/a/python/how-do-i-use-installed-packages-in-pycharm

[ttrftech]

GNU Radioの入門に是非！解説記事をRFワールドNo44特集「GRCで広がるSDRの世界」に寄稿しました

CQ出版社の季刊誌「RFワールド」最新刊No.44に、特集記事を寄稿させていただきました。GNU Radioの解説記事「GRCで広がるSDRの世界」です。計85ページもの分量です。

GRCとはgnuradio-companionのことです。グラフィカルなパッチプログラミングにより、お手軽にSDR信号処理の実験や実装が可能です。

GNU Radioについては、こちらでも少し紹介しています。ただ、日本語によるまとまった解説が、Webや雑誌を含め存在しないことを残念に思っていました。どこかで紹介や解説を書かせていただければなー、と思っていました。そんなところに、あのRFワールド誌からお声がけをいただき、O編集長のご尽力により、このような形で記事にしていただくことができました。

SDRのフロントエンドも安価なものが入手しやすくなっています。今回はいろいろ比較した結果、HackRF Oneを使うことにしました。性能のバランスもよく、���月で購入可能で入手性も良く、オススメです。

特集記事の内容はGNU Radio入門ということで、アマチュア無線にお馴染みのアナログ方式についての変復調をメインに取り上げました。それから、ちょっとだけデジタルもということで、ワンセグの受信とデコードをGNU RadioとRTLドングルで行う方法を紹介しています。GNU Radioはソフトウェアフレームワークなので、ちょっとだけPythonコードの雰囲気や、ブロックの開発についても紹介しています。

あのカンガルー先輩の挿絵も入っていますよ! 

電波の扱いにはくれぐれもご留意ください。

発売は2018/10/29です。ぜひお手にとってご高覧いただければ幸いです。

コメントは是非Amazonレビューにお願いします。

RFワールド No.44 http://www.rf-world.jp/bn/RFW44/RFW44A.shtml

CQ出版社販売ページ https://shop.cqpub.co.jp/hanbai/books/MTR/MTRZ201811.html

Amazon https://amzn.to/2RiOqyS

[orestz]

TELIVE - Decodificação Tetra

TELIVE - Decodificação Tetra Saiba como xeretar comunicações de serviços oficiais, como Policias Civil, Militar, Federal, Ministério da Defesa, Metrô, etc.

Os tranceivers de Rádio Definido por Software (SDR) tornaram-se populares, e eu tenho a preferência pelo que se pode fazer com eles usando o Linux.

Este post é um tutorial de instalação dos componentes para decodificação TETRA usando o Gnuradio no Ubuntu 19.04 como plataforma e um RTL2832u que custa algo em torno de R$100,00.

Não entrarei em detalhes sobre o Gnuradio, pois a instalação é simples…

[netshadestuff]

GNURADIO Tutorial 7 [ PSK Modulator ]

[iandroideu]

Pulling Data From News Feed Telemetry #Audio #DigitalAudioHacks #GnuRadio #telemetry https://t.co/o08sREdSUN http://twitter.com/iandroideu1/status/1267403213046603778

Pulling Data From News Feed Telemetry #Audio #DigitalAudioHacks #GnuRadio #telemetry https://t.co/o08sREdSUN

— iAndroid.eu (@iandroideu1) June 1, 2020

[hackernewsrobot]

GNU Radio

https://github.com/gnuradio/gnuradio Comments

[switchdoc]

Making progress already! First picture is the short little 433mHz signal (line on the waterfall picture). Second picture is a #LoRa packet for SolarMAX with a lot more data than the other signal. This is a software defined radio and I’m using a #raspberrypi to scan and interpret 433mHz signals using ASK ( Amplitude Shift Keying). Next I will decode the ASK signal using GNURadio. 🤓. We will then build this receiver into a new board. Exciting #engineering. This a pretty standard inexpensive SDR. #switchdoclabs #weather #science #wireless #makersgonnamake https://www.instagram.com/p/B7MuBnsHZUc/?igshid=k57nq92y4iwj

[luv-engineering]

'Too Much Sugar For A Dime' or... this is all you'll need to enter into SDR This book is a compilation of current data in the up and coming world of Software Defined Radio. If there is any doubt in you mind as to the future of SDR, this book quickly displays the possibilities of the science and gets your attention. Go to Amazon

The Missing RTL-SDR Manual I think this book should be called “The Missing RTL-SDR Manual.” It explained everything I needed to know in order to make my SDR dongle work, and this was especially important because the dongle came with absolutely no instructions. After covering the basics with detailed but simple written directions, screenshots, and a troubleshooting section (which I needed), the book goes into more advanced topics such as receiving digital communications from airplanes, tracking aircraft, displaying live images from NOAA weather satellites, using the Orbitron satellite tracker program, receiving images from the Meteor-M N2 polar orbiting Russian weather satellite, receiving and decoding weather balloon radiosondes, etc., etc. There is an antenna guide, an audio piping guide, a general frequency guide, a section for radio astronomy enthusiasts... The list goes on and on. If there were a Pulitzer Prize for easy-to-understand, useful, and complete instruction manuals covering a wide range of topics for beginners, I think this remarkable book would win it. The author, Carl Laufer, is to be commended for his truly excellent work!—Joe Benson Go to Amazon

Nice compilation of articles It was a compilation of many articles that I found over the internet in doing research into the topic. It was nice to have all the details in one location but not a lot of new content. Was worth the money to anyone who just got a RTL-SDR dongle and wants a single place to to read how to use it rather than search around for the information via search engines. I noted that a lot of people got the dongles for the RTL-SDR purpose and were frustrated in figuring how to use it. This book is for them. Go to Amazon

Excellent Hobbyest Guide! This book IS the encyclopedia of the RTL-SDR USB Dongle Radio's! Very well written and positively overflowing with information, useage ideas, and other interesting suggestions! Great Read!!! Go to Amazon

The title says it all I have to give the book three stars and myself one for buying it: It is strictly a Hobbyist's Guide. It tells you which software to download from where to receive basically everything that can be received with the RTL-SDR. It even tells you how to install the various (often commercial) pieces of software and where to click to make it all run. If there is more than one choice, it even tells you what - in the author's opinion- is the best choice. If, however, you wanted to LEARN anything about what modulation and encoding techniques are used for the different services that can be received or what signal processing the SDR needs to perform to decode it all, you've come to the wrong place. Grudgingly, I would have given the book even more stars, if it were not for the shoddy editing (I got the print edition with lots of erroneous word repetitions, "that" instead of "than" and other typing errors) and the lack of a keyword index at the end. What mislead me was the mentioning of GNURadio (which uses signal processing building blocks for everything) in the table of contents - it is mentioned as a tool, but not used for anything after that. So again, this book may be exactly what you are looking for (except for the bad editing and the lack of an index), but it is definitely not even close to a textbook or manual for engineers that would teach any underlying concepts whatsoever. Go to Amazon

Impressive new technology, excellent information. Lots of detailed work put into this book. I have only been 25% through it, but so far it is excellent. I have been in the radio biz for 40 yr and I can honestly say SDR tech is revolutionary to say the least. The geek factor will be high for those without experience, but the only way to get experience is to jump in and get your feet wet. There is much to explore over time in this book. Go to Amazon

Excellent reference This book will tell you all you need to know to get started with an RTL-SDR system. In addition, it covers a number of issues in detail, provides links to online sources for hardware and software. Finally, there is a list of projects to try with your new SDR. If you're getting started, this book will get you well and truly on the way. The only thing lacking is a decent tutorial in installing GNU Radio, which can be a daunting task. Go to Amazon

Very nice book. Easy to understand and informative as well Very nice book. Easy to understand and informative as well. Good to have a quick jump and start doing stuff. If you are c Moletelt clueless and want something to actually teach you more about the things used or some of the other topics. Then you might wanna buy something else. But, overall this is a rather decent book to enjoy reading and learning from and also doing something practical. Go to Amazon

A definitive guide to SDR Want to get started with SDR? Read this! One Star Five Stars Excellent INtroduction and Guide to Software Defined Radio Applications Excellent resource Five Stars Highly Recommended, even for those who don't have an SDR--yet Five Stars Coopa gobba gooba gobba

[ttrftech]

LimeSDRをGQRXで使ってみる

キャンペーンは昨年の4月でした。デリバリは11月予定だったはずなのでちょっと遅れたというところです。

2016/4/29 キャンペーン開始

2016/4/29 さっそくBackする

2016/6/22 ファンディング成功

2016/7/29 コネクタをMicro-Bに変更

2017/1/27 出荷

2017/2/5 受領

箱は黒いスリーブにレーザカッターでロゴが抜かれて内箱の緑が見えています。添付はUSB micro-Bのケーブルのみです。電源補助用のAプラグが二股になっています。

内側には携帯やWiFiなどのバンド番号と周波数(DL/UL)の表が書かれています。地味に有り難いです。

基板は小さく密度は高いです。購入時にUSBコネクタを選べますが、USB micro-Bにしました。他にUSB Aプラグタイプが選択肢にあります。

裏面にも部品が詰まっています。プラの6角スタッドが足として付いています。おぉっと思ったのは、おなじみのSi5351が使われています(AではなくC)。

bladeRFとくらべるとかなり小さいです。bladeRFは部品の配置に余裕があり、さらに拡張コネクタも装備されていました(結局使いませんでしたが)。それに対してLimeSDRは部品の密度も高く、拡張コネクタもFPGAから出ている10ピンのGPIOのみです(JTAGと同じコネクタ形状)。

肝心のRFコネクタですが、なんとU.FL(IPX)でごく小さいのです。TX,RXともに2チャネルずつ用意され、さらにTXはチャネル毎に2つ、RXもチャネル毎に3つコネクタが装備されているので、合計2x2+3x2=10個もあります。このようにポート数がとても多いため、SMAではスペースが確保できずU.FLを選択したのだと思われますが、ちょっとやり過ぎの感も否めません。U.FLは機械的強度がとても弱いので、何度も付け外しを繰り返すことができません。早急にケースに入れてケーブルを固定してしまうことが必須だと思われます。今回は仮にUFLのついたケーブルを机にテープで仮止めして外れないようにしています。

ソフトウェアは、例によってmacosにセットアップします。こ���を機会にようやくsierra(10.12)にバージョンアップしました。

LimeSDR用にLimeSuiteとしてツールがいくつか用意されています。これも公式ページに従ってbrewでインストールしておきます。

$ brew tap pothosware/homebrew-pothos $ brew update $ brew install limesuite

コマンドラインツールのLimeUtilでボードが認識できたら、さっそくファームウェアをアップデートしておきます。

$ LimeUtil -info $ LimeUtil -update

LimeSuiteGUIというグラフィカルツールも用意されています。ボードに載っている各デバイスを細かくコントロールできるようです。動作させるためには、メニューのOptionsからConnection Setupでまずは接続を行う必要があるようです。ちょっとまごつきます。

SDRソフトウェアとしてgqrxをlimesdrで動作させることができるようです。そのためにはソースからビルドする必要があるため、各種ツールキットをインストールします。下記はbrewであっさりとインストール可能です。soapysdrは、SDR関連のライブラリやツールをまとめたSuiteとのことです。

gnuradio

soapysdr

下記はコードからビルド必要でしたが、今回brewのFormulaを用意/アップデートしました。githubに上げてありますので、brew tap ttrftech/gqrxで利用可能です。

gr-iqbal

gr-osmosdr

gqrx

インストールに成功したら、gqrxを起動します。LimeSDRはsoapyというインターフェースで使用する必要があるので、デバイス設定として、

driver=lime,soapy=0

を指定します。起動がうまくいかないことがたまにありますが、もう一度実行するとOKだったりします。Input rateは8000000(8Msps)から55000000(55Msps)程度が指定可能でした。仕様上は上限60Mspsだったはずですが、これを指定すると起動できませんでした。

50Mspsの指定で動作させてみます。RTLドングルに付属していたアンテナをU.FLコネクタに接続します。最初は何も受信できずに焦りました。

設定が2箇所必要でした。まずアンテナポートを選択する必要があります。デフォルトではNONEになっているので何も受かりません。アンテナを接続したポートをプルダウンメニューで選択します。LNAH,LNAL,LNAWがRX1-H,L,Wにそれぞれ対応しているようです。RX2には未対応のようです。

そしてもう一つは、ゲイン設定を上げる必要があります。必須なのはLNAでこれは最大にします。他の設定ではレベルは変化しますが、NFは変化しないようです。適宜設定します。

そうすると受信できるようになりました。この画面では地上デジタルTVの3波がわずかの隙間を空けて並んでいるのが見えています。

ちょっと周波数を上げるとこちらも地デジが1チャネル分の隙間を空けて並んでいます。サンプリングレートが高いので、50MHzの帯域を一度に見ることができます。

もっと周波数を上げると携帯の周波数が見えてきます。 4つの帯の左からKDDIのLTE, 3G, Docomoの3G,LTEのDL(Down Link)です。

1.5G帯にも携帯の太い帯が見えています。

2.4Gでは室内の通信が見えています。一瞬出る横幅の太い線はWiFi(11gの20MHz幅)。点々と散らばっているのはおそらくBluetoothの周波数ホッピング(FH)です。

とりあえず、受信機として正常に使えているようです。

LimeSDRは0.1〜3800MHzというとても広い帯域に対応していることが謳われていました。気になる低い周波数ですが、300MHz以下を受信可能なことは一応確認しました。しかし顕著に感度は下がって行くようです。特にHF帯ではちょっと実用性は無さそうな感じです。資料を読むと30MHz以下の低い周波数の対応は、チューナではなく信号処理段で特別な処理を行うようですので、もしかすると使い方が足りていないか、まだ対応がされていない可能性もあります。

もう一つ気になることは、300MHz以下ではイメージが顕著に出ることです。例えば180MHzにチューニングすると明らかに地デジの帯が出てきます。右には違う周波数帯の携帯も見えています。チューニングをず��すとばらばらにズレていきます。このチップ(LMS7002)のチューニングスキームを理解できていませんが、300MHz以下の受信をしたい場合には、広帯域信号では不都合があります。適当なLPFで帯域を絞った信号を入れる必要があるようです。

使っているとチューナチップとFPGAどちらも結構発熱します。USBからは7〜800mA消費しているようです。

gqrxでの受信を試してみた印象ですが、300MHz以上の周波数帯では感度も良く、快適に使えそうです。元来WiFiやBluletoothの実験に供することを主眼に設計されているようですので、当然かもしれません。一方、低い周波数での応用は、特に無線用途では難しいと思われます。謳われているスペックを鵜呑みにするとがっかりすることになると思います。

さて、LimeSDRは受信だけでなく、信号生成機能もあります。bladerfではコマンドを使ってデータストリームを送受できたのですが、limesdrでは見当たりません。おそらくgnuradioを使うことで利用できるのではと思うのですが、こちらはまた探ってみたいと思います。

リファレンス

クラウドファンディングサイト CrowdSupplyでのLimeSDRキャンペーン https://www.crowdsupply.com/lime-micro/limesdr

LimeSDR公式 https://wiki.myriadrf.org/LimeSDR

ユーザガイド https://wiki.myriadrf.org/LimeSDR-USB_User_Guide

クイックスタートガイド https://wiki.myriadrf.org/LimeSDR_Quick_Start

LMS7002 Datasheet (wiki) https://wiki.myriadrf.org/LimeMicro:LMS7002M_Datasheet

公式のLimeSuiteインストール手順 https://wiki.myriadrf.org/Lime_Suite#OSX_homebrew

Gqrx http://gqrx.dk/

参考にした先人のgqrx構築手順 https://discourse.myriadrf.org/t/anyone-been-successful-in-getting-limesdr-osx-gqrx-working/657/14

今回作成してみたHomebrewのFormula https://github.com/ttrftech/homebrew-gqrx

[orestz]

Analisador de Espectro de Banda Larga com um RTL-SDR

Para a maioria dos utilizadores do RTL-SDR, a cascata (waterfall) é o auge do software de rádio. Mas há alguns problemas que me incomodam.

     – Exibição de frequência limitada. Normalmente, não pode fazer mais do que a largura de banda nativa do seu SDR permite.

     – Exibição por tempo limitado. Ela simplesmente rola da borda para o vazio.

     – Blocos (bins) de FFT limitados.…

[netshadestuff]

GNURADIO Tutorial 6 [ FM, interpolation, NBFM Trasmit]

[hoory]

RT @edy555: GNURadioでワンセグのデコードに成功した https://t.co/lje6Es4NoY

[cryptobrief]

One of the key benefits of using Blockstream Satellite is the reduction in costs for participating in the Bitcoin network. Through the Satellite service, more people can benefit from the security of both holding their own Bitcoin keys and running their own Bitcoin full node.

While Blockstream Satellite is intended to broaden participation in the Bitcoin network, the equipment normally required to receive data from space can pose some cost issues, which meant we had to get a little creative to reduce the amount of hardware required.

Who Needs Hardware When You Have Software?

One of the main ways that we keep costs down is through the use of Software-defined radio (SDR). Professional satellite equipment can cost into the thousands of dollars, and performs all signal processing on dedicated circuitry. By using SDR, these hardware processes are handled by software instead. All a user needs is a USB SDR dongle, which can be picked up for less than 25 dollars.

A closeup of an SDR in action

How it works is the SDR performs analog to digital conversion of the signal received from the Blockstream Satellite and feeds the digital signal into the computer over USB. With the SDR providing a digital signal to the host computer, processing is then handled in software on the host computer using GNU Radio, a programming system specialized for this purpose.

The signal-processing demands on a CPU are moderately heavy, with minimum specifications being a 2GHz 2-core Intel i5 or equivalent - possible with a previous generation laptop, NUC, or desktop - but still quite a bit higher than the minimum CPU requirements for running a full node.

In the video below, Blockstream’s signal processing specialist, Igor Friere, explains how GNU Radio-based signal processing is handled within the Blockstream Satellite software. Caution: this one’s technical!

The Benefits of Blockstream Satellite

While we’re here, it’s probably a good idea to remind readers of the major advantages of using Blockstream Satellite to run a Bitcoin full node:

Global Accessibility

As mentioned in the article above, the cost of Bitcoin network participation is a barrier to entry for many emerging markets users, who often have strong use cases for adopting Bitcoin (e.g. economic challenges and inflationary currencies).

Bitcoin full node bandwidth requirements can exceed 10GB/month, even with measures taken to minimise bandwidth, like disabling relaying, or running in blocks-only mode. This is already in excess of many ISP bandwidth caps and even if not, bandwidth can be more expensive in many emerging markets than in developed countries, putting participation in the Bitcoin network out of economic reach for many potential Bitcoin users.

Privacy and Security

As Blockstream Satellite data is broadcast and read-only, you obtain privacy as your ISP and other users on the Bitcoin P2P network are unable to discover you are using Bitcoin. You are protected from often unforeseen risks, such as attackers using full node IP addresses to geo-locate Bitcoin users’ homes and then physically targeting them for burglary and theft.

Resiliency

For individuals and businesses alike - being on the wrong side of a Bitcoin network split due to an internet disruption can be a serious security risk when accepting high value transactions in Bitcoin. Blockstream Satellite can act as a secondary independent connection, in addition to regular internet, to mitigate this risk.

New Infrastructure

There are a number of projects working on extending Bitcoin access in emerging markets and remote locations via wifi hotspots, mesh-networks, and LoRa, further reducing costs by sharing Blockstream Satellite access and an internet connection to send transactions to the network.

How to Set Up Your Own Satellite Node

To get connected to the Blockstream Satellite network, head to our GitHub for official instructions. Following that, you may also want to check out our colleague’s excellent guide on setting up his own Satellite node in North America.