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Tutorial on Combining and Rebroadcasting ADS-B Feeds with ModeSMixer2
Last week we posted about how the author of the SonicGoose.com blog had written a tutorial on the use of ModeSDeco2 for decoding ADS-B with an RTL-SDR. Now the same author has continued his tutorial by...
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Listening to a Radio Amateur Stratosphere Balloon with an RTL-SDR
Over on YouTube user kpappa has uploaded a video showing his reception of the J43VHF radio amateur stratosphere balloon with an RTL-SDR dongle and discone antenna. On the 10th of May radio amateurs in...
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RTL-SDR Tutorial: Decoding Meteor-M2 Weather Satellite Images in Real-Time...
Back in September last year we posted a tutorial written by RTL-SDR.com reader Happysat which showed how to receive and decode high resolution Meteor-M2 LRPT satellite images. The tutorial required...
View ArticleReceiving SSTV from FleetSatcom Pirates
Radio pirates often make use of the Fleetsatcom satellites to send and receive slow scan television (SSTV) pictures over a wide distance. Fleetsatcom is a satellite communications system used by the US...
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Wireless Door Bell 433 MHz ASK Signal Analysis with a HackRF
Paul Rascagneres, an RF experimenter has recently uploaded a document detailing his efforts at reverse engineering a wireless doorbell (pdf file) with a 433 MHz Amplitude Shift Keyed (ASK) signal with...
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Determining the Radiant of Meteors using the Graves Radar
With an RTL-SDR or other radio it is possible to record the echoes of the 143.050 MHz Graves radar bouncing off the ionized trails of meteors. This is called meteor scatter and it is usually used to...
View ArticleNew EAS SAME Weather Alert Decoder
Over on Reddit and GitHub user cuppa-joe has released a Python based EAS SAME Alert message decoder called dsame which is compatible with the RTL-SDR. EAS is an acronym for Emergency Alert System and...
View ArticleMonitoring Drone FPV Frequency Usage with a USRP Software Defined Radio
Over on YouTube balint256 (Balint), a researcher at Ettus (creators of the USRP line of software defined radios) has uploaded a video showing how he is using his USRP to help with frequency management...
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Building a Passive Radar System with RTL-SDR Dongles
Back in 2013 we posted about Juha Vierinen’s project in which he created a passive radar system from two RTL-SDR dongles, two Yagi antennas, and some custom processing code. Passive radar can be used...
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Lantern: A New 925 MHz to 2175 MHz RTL2832U Based SDR for Satellite Reception
Over on Reddit we’ve seen news about a new 925 MHz to 2175 MHz RTL2832U based software defined radio which is currently under development. It is called the “Lantern” and is being developed for the...
View ArticleTrunking with the Latest DSD+ 1.08t Fast Lane Version
DSD+ stands for Digital Speech Decoder Plus and is a software program that can allow you to decode digital voice signals such as P25 and MotoTRBO/DMR. DSD+ is under continual development, and in their...
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Transmitting DATV DVB-S Video with the HackRF Blue
Simon (G0FCU) has been using his HackRF Blue to transmit DVB-S video captured from his video camcorder. In the ham radio hobby there is something called digital amateur television (DATV) in which...
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Stealing Encryption Keys from PCs using Software Defined Radio and...
Tel Alviv University researchers D. Genkin, L. Pachmanox, I. Pipman and E. Tromer have released a paper this year detailing their research on extracting encryption keys from PCs via their unintentional...
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RTL-SDR as a Hardware Random Number Generator with rtl_entropy
Over on his blog, Aaron Toponce has posted a tutorial that shows how to use the RTL-SDR app rtl_entropy. This app uses the RTL-SDR to create random numbers from the atmospheric noise that it receives...
View ArticleBuilding a 520 kHz High Pass Filter for the RTL-SDR
Over on YouTube user kugellagers has uploaded a video showing how he designs and builds a 520 kHz high pass filter for his RTL-SDR dongle + upconverter. In the video he explains how to design the...
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Using the RTL-SDR as a Transmitter
Back in July of last year we posted about a video from oh2ftg where he showed how he was able to get his RTL-SDR to act as a crude transmitter by using the RTL-SDR’s leaky oscillator. Now another...
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Two New SDR# Plugins for Passive Radar and IF Signal Averaging
Recently Dr. Daniel Kaminski wrote into RTL-SDR.com to let us know about two very interesting new SDR# plugins that he has developed to use with the RTL-SDR dongle. The first plugin is called “Passive...
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New RTL-SDR software: rtl_ais
Over on cruisersforum.com we’ve seen news of a user who has worked to combine rtl_fm and aisdecoder into a single command line program called rtl_ais. AIS stands for Automatic Identification System,...
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Optimizing Reception of VLF frequencies on an RTL-SDR Dongle
Over on his web site, Martin (G8JNJ) has uploaded a new article discussing how to optimize reception of VLF (<10 kHz) signals on a direct sampling modified RTL-SDR. He writes that the main problem...
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Using a direct sampling enabled Airspy as a Panadapter for a Yaesu FTDX-5000
Tim Havens is an avid CW operator on the ham bands and primarily uses his Yaesu FTDX-5000 transceiver for this purpose. At the same time he also uses a software defined radio coupled with an...
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