The NOAA-15 Weather Satellite May be Failing
Over the last few days the NOAA-15 APT weather satellite has begun to show signs of failure with people receiving corrupted images. NOAA 15, 18 and 19 are weather satellites that can be easily received...
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Investigating the Adjustable IF Bandwidth on the R820T Chip
Over on his blog, Thierry Leconte has been writing about some IF bandwidth experiments that he's performed on the R820T2 chip. This is the tuner chip that is used in most RTL-SDR dongles, and well as...
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New GUI and Info on Outernet’s moRFeus Wideband Signal Generator
Back in March we posted about the release of Outernet's moRFeus device which is a low cost wideband RF signal generator. Since then we've received a few emails from two readers who've received their...
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QuestaSDR: New RTL-SDR Software for Android
Last year we posted about QuestaSDR, which is a simple SDR multi-mode GUI that is compatible with the RTL-SDR. Since then QuestaSDR has evolved, and is now available on Android devices as well. It...
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Testing the Airspy with the New And Improved Version of ADSBSpy
Airspy have recently released an update to their ADSBspy decoder, which is an Airspy One/R2 compatible decoder for 1090 MHZ ADS-B signals. According to 'prog', the software developer of ADSBSpy, his...
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The Lego Pi RTL-SDR FM Radio
Thank you to RTL-SDR.com reader 'JJ' for writing in with a submission for his Lego Pi Radio. JJ's Lego Pi Radio consists of a Raspberry Pi and RTL-SDR and is designed to be an FM Radio, MP3 and...
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OH2BNF’s Plan for a Large Scale Raspberry SDR (LSR-SDR) Based on RTL-SDR Dongles
Thanks to OH2BNF for writing in and sharing his plan to build a "Large Scale Raspberry SDR" (LSR-SDR), which will be based on RTL-SDR dongles. To create the LSR-SDR he plans to take a 19" rack which...
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Part III of Calibrating your RTL-SDR with QIRX SDR Now Uploaded
Earlier in the month we posted about Clem's three part series on how his QIRX SDR software can be used to accurately calibrate an RTL-SDR using DAB signals. Back then only parts I and II had been...
View ArticleTysonpower Reviews our Triple Filter ADS-B LNA
Thank you to YouTuber 'Tysonpower' who is known for making various RF related videos as he has recently reviewed our Triple Filtered ADS-B LNA on his blog and on YouTube. Note that his video is in...
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Osmo-FL2K: A TX-Only SDR Hacked From Commodity $5 USB to VGA Adapters – Demos...
Osmocom are some of the people behind the original discovery and development of the RTL-SDR (in particular Steve M), and today it looks like they have done it again by releasing exciting news of a way...
View ArticleThomas N1SPY Demonstrates Receiving SSTV Images from the ISS
Earlier in the month the International Space Station (ISS) was transmitting SSTV images down to the earth for anyone to receive an decode. The ISS does this several times a year to commemorate special...
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GUI for Controlling the R820T2 Filters and Registers
Recently a program called R820T2Tweak_Patched was released which is a GUI for GQRX that allows you to manually control not only the three RF gain settings on R820T2 RTL-SDRs, but also the four filter...
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Creating a High Altitude Balloon Telemetry System with Raspberry Pi, RPiTX...
The 2M TX Filter by ZR6AIC Over on his blog ZR6AIC explains how he's created a full HAB (high altitude balloon) telemetry transmit and receive system using RPiTX and an RTL-SDR dongle running on a...
View ArticleGetting the V3 Bias Tee to Activate on PiAware ADS-B Images
A few owners of our RTL-SDR V3 and/or our Triple Filtered ADS-B LNA (or other bias tee powered LNAs) have been having trouble getting the V3 bias tee to activate on the FlightAware PiAware Raspberry Pi...
View ArticleVideo Demonstrating the iBiquity HD Radio Decoder
Over on YouTube user Rob Fissel has uploaded a nice video that demonstrates the iBiquity HD Radio decoder working with an RTL-SDR. HD Radio is a terrestrial digital broadcast signal that is only used...
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Another GUI for Outernet’s Wideband Signal Generator moRFeus
Thanks to Ohan Smit for submitting news of his newly released GUI for Outernet's moRFeus wideband signal generator. Ohan's GUI works in both Linux and Windows. The Windows release can be downloaded...
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Setting up and Testing Osmo-FL2K
A few days ago we posted about Osmo-FL2K, which is a newly released piece of software by Steve M from Osmocom that turns a common $5-$15 USB to VGA adapter into a transmit only capable SDR. It is very...
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Steve M’s Video Presentation about Osmo-FL2K Released
Recently we've been posting about the release of Osmo-FL2K which is a software hack that allows cheap $5-$15 USB 3.0 to VGA adapters to be used as a transmit-only capable SDR. It is an excellent...
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Reprogramming Vaisala RS-41 Radiosondes to Transmit APRS, RTTY, CW in the Ham...
Radiosondes are light weight sensor packages that are attached to weather balloons. They transmit live RF weather telemetry down to earth as they rise. With an RTL-SDR and appropriate antenna it can be...
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New RTL-SDR Receiver App for iOS Released
SDR Receiver on iOS Screenshot A new RTL-SDR compatible app for Apple iOS (iPhone, iPad) has recently been released on the Apple App store. The app is called "SDR Receiver", costs US$9.99, and is used...
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