Video Introduction to Scattering Parameters with Animated Examples

From www.rtl-sdr.com 1 year ago in Blogs

Thank you to Apostolos for sharing with us his educational video that introduces "scattering parameters" (aka S-Parameters), and how these parameters relate to antennas and RF networks. S-Parameters are a matrix of values that can be used to describe an electrical network. Apostolos' video explains these parameters in detail, giving...

Articles from RTL-SDR

TXAdvance: An RF Transmitter Manager Android App that uses RTL-SDR

From www.rtl-sdr.com 6 days ago in Blogs

Recently we came across a new RTL-SDR app on the Google Play store called TXAdvance which appears to be designed for professional sound engineers working in TV/film/stage/music production industry. The app uses an RTL-SDR to display the RF spectrum, helping...

Building a 315 MHz Jammer with an Arduino

From www.rtl-sdr.com 6 days ago in Blogs

Over on YouTube CiferTech has uploaded a video showing how to create a low cost 315 MHz jammer using an Arduino and a cheap 315 MHz transmitter circuit. The 315 MHz band is used in some countries by short range...

Receiving TPMS Tire Pressure Data from a Mazda CX 5 with an RTL-SDR

From www.rtl-sdr.com 6 days ago in Blogs

Over on YouTube Robert from the Robert Research Radios channel has uplaoded a video showing how he has been using an RTL-SDR and rtl_433 to measure his Mazda CX5's wireless tire pressure sensors. The Mazda CX5 comes with TPMS tire...

TechMinds: Reviewing the ANTSDR E200

From www.rtl-sdr.com 2 weeks ago in Blogs

A few days ago we posted about the upcoming crowdfunding campaign of the MicroPhase AntSDR E200, an SDR that is very similar to the PlutoSDR, but with a much larger FPGA and more stable TCXO. One interesting feature is that...

An OpenWebRX fork with additional built in decoders

From www.rtl-sdr.com 2 weeks ago in Blogs

Thank you to Stefan for letting us know about a relatively modern OpenWebRX fork by luarvique that comes with additional built in decoders and features, such as SSTV, AIS, CW, RTTY, an MP3 recorder and SSTV image browser. OpenWebRX is...

Open Source Close Call Monitor for RTL-SDR

From www.rtl-sdr.com 3 weeks ago in Blogs

Thank you to Fabian for writing in and sharing with us his newly released RTL-SDR close call monitoring software called "rtl-sdr-close-call-monitor". The software is open source and written in Python. It's main purpose is to log any signal peaks that...

Hunting for Space Radio Pirates on the US Military Fleet Satcom Satellites

From www.rtl-sdr.com 3 weeks ago in Blogs

In the 70's and 80's the US government launched a fleet of satellites called "FLTSATCOM", which were simple radio repeaters up in geostationary orbit. This allowed the US military to easily communicate with each other all over the world. However,...

ANTSDR E200 set to begin Crowdfunding on CrowdSupply soon

From www.rtl-sdr.com 3 weeks ago in Blogs

The AntSDR E200 is a software defined radio from Microphase which will come in two flavors. The first is the 'AD9363" version with 2x2 RX/TX and a 325 - 3.8 GHz tuning range, 20 MHz bandwidth and 12-bit ADC. The...

Receiving Russian Satellite TV from the Express AM8 Satellite and watching the Hacking and Jamming Attempts

From www.rtl-sdr.com 3 weeks ago in Blogs

Since the Russian invasion of Ukraine, the EU has banned the broadcast of Russian TV channels. This is caused Russia to move their satellite broadcasts from internationally owned satellites, to their own "Express AM8" geostationary satellite. The Russian satellite can...

Visualizing RF Fields in Augmented Reality with a tinySA-Ultra or RTL-SDR and Android Smartphone

From www.rtl-sdr.com 3 weeks ago in Blogs

The tinySA-Ultra is an affordable handheld spectrum analyzer that can be purchased for around US$130 on Aliexpress and authorized resellers such as R&L Electronics in the USA. Recently on YouTube Manahiyo has used his tinySA-Ultra, and combined it with an...