BigWhoop: Global Spectrum Monitoring Network with RTL-SDR Dongles
The American space agency NASA runs a yearly challenge called the “International Space Apps Challenge”. The challenge encourages global collaboration in solving several space and Earth related...
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Review of Adam 9A4QV’s Folded Monopole ADS-B Antenna
Recently we bought and tested one of Adam 9A4Qv’s ADS-B folded monopole antennas. This is a well thought out 50 ohm antenna designed for receiving ADS-B signals between 1030 and 1090 MHz. It has an...
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A self contained ADS-B Receiver using a Raspberry Pi and RTL-SDR
Over on the Raspberry Pi Reddit discussion board user spfoamer has posted about his Raspberry Pi + RTL-SDR based outdoor ADS-B receiver. ADS-B stands for Automatic Dependent Surveillance Broadcast and...
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ADSBox: New ADS-B Decoding Software for Linux
Recently Roman, a programmer and reader of RTL-SDR.com wrote in to let us know about his ADSBox software which is a free opensource Linux based ADS-B decoder (page in Russian, use Google Translate)...
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dump978: UAT Decoder for the RTL-SDR + FlightAware App now supports UAT
In most of the world aircraft use the ADS-B standard for location tracking which transmits at a frequency of 1090 MHz. However, in the USA there is the option for aircraft to instead use the Universal...
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Sigimira Decoder now supports the RTL-SDR Directly
Sigmira is a popular free Windows software program which supports decoding of radio modes such as PSK31, RTTY, CW, STANAG 4285, Japanese Slot Machine, FSK, HFDL and M141 as well as standard modes such...
View ArticleAISRec for Android: New AIS Decoder
Back in December last year we posted about Jane feverlay’s work on his software called AISRec, which was a Windows AIS decoder for the RTL-SDR that he had developed. AIS is an acronym for Automatic...
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Remote RTL_UDP: RTL-SDR Remote Control Android App
Over the past few weeks programmer MichelinoK has been working on an Android app that allows the RTL-SDR to be listened to and controlled remotely. The app is called “Remote RTL_UDP” and allows you to...
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RTL_Power Frequency Display Software
Programmer MichelinoK has recently posted about another piece of RTL-SDR related software that he has just released. His latest software is called RTL_POWER Display and is a Windows programs that...
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A Crude Skew Planar Wheel Antenna for Receiving GPS L1 with an RTL-SDR
Over on his blog /dev/thrash RTL-SDR experimenter Elia has been attempting to build an antenna to receive Global Positioning System (GPS) signals with his RTL-SDR. After doing some research he decided...
View ArticleSDRRecorder – A Linux Script for Recording an IQ Stream at a given Date and Time
Programmer MichelinoK has just released another one of his projects. This one is called SDRRecorder and is a Linux bash script that can be used to automatically record an IQ stream of any frequency and...
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Hooking up an Si5351A Voltage Controlled Oscillator to the Local Oscillator...
With most low cost RTL-SDRs the provided 28.8 MHz local oscillator is of low quality and will often have a sizeable frequency offset and temperature drift. To fix this the oscillator can be replaced...
View ArticleBuilding a 145 MHz Low Loss Helical Bandpass Filter
Over on YouTube user Mile Kokotov has uploaded a video showing his home made low loss helical bandpass filter for 145 MHz, but also tunable from 110 MHz to 160 MHz. Bandpass filters are useful for the...
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Tutorial on using Modesdeco2 for ADS-B with the RTL-SDR
Over on the SonicGoose.com blog, the author has recently created a tutorial showing how to use Modesdeco which is a multi platform command line ADS-B decoding software application. ADS-B stands for...
View ArticleSetting up the Linrad waterfall with high sensitivity for weak signals
Leif, the programmer of Linrad has uploaded a video on YouTube showing how to set up it’s waterfall for very high sensitivity reception of extremely weak signals. Linrad is an SDR GUI receiver software...
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New ADS-B Android App for North America
Previously we posted about Android programmer Tosis Nikolaos’s last app which was called “Track your flight Europe”. The app allows you to view aircraft tracked via ADS-B received by an RTL-SDR on an...
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OpenWebRX: An Multi-User RTL-SDR Receiver with Web Interface
From Reddit we’ve learned of a new web based SDR receiver software for the RTL-SDR called OpenWebRX. This python based software allows you to run a web server that allows multiple users to connect to...
View ArticleBigWhoop now a finalist in the NASA Global People’s Choice Award
Previously we posted about BigWhoop which is a project entry into the NASA International Space Apps Challenge. The BigWhoop team aim to create a networked system where RTL-SDR’s are used around the...
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Reverse Engineering a Radio Weather Station with an RTL-SDR
On his blog Josef Gajdysek has posted about his experience with using an RTL-SDR to reverse engineer the radio protocol used by his home weather station. Josef’s weather station is an ISM band device...
View ArticleA 1961 Drake 2B Receiver using an RTL-SDR as a Panadapter
The Drake 2B is an old analogue tube based radio from 1961. Although it is so old it is still considered a decent shortwave receiver. Over on YouTube user M0HBR decided to bring his Drake into the...
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