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An interesting RTL-SDR direct sampling modification
Over on the Reddit RTL-SDR discussion board user pksato has posted an image of his direct sampling modified RTL-SDR dongle. His mod includes a simple common base amplifier with 9dB gain, an impedance...
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Adding a Low Pass Filter to an External Local Oscillator Source for the RTL-SDR
At the end of last month we posted about Milan’s work on using an Si535A voltage controlled oscillator with breakout board as a stable replacement for the default RTL-SDR’s low quality 28.8 MHz local...
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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 ArticleYouTube video showing Meteor-M2 being decoded in real time
Yesterday we posted about a tutorial showing how to decode Meteor-M2 LRPT weather satellite images in real time with a new QPSK decoder plugin for SDR# and a modified version of Lrptdecoder. Over on...
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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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 ArticleList of all SDRSharp Plugins from rtl-sdr.ru
Vasilli, an SDR# plugins programmer has released a list of all his available SDR# plugins on his website rtl-sdr.ru (in Russian, use Google translate). Some even which were missing from our own list....
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RTL-SDR vs. AIRSPY on ADS-B Reception: Round 2
A few days ago we posted about Anthony Stirk’s comparison between the RTL-SDR and the Airspy on receiving ADS-B signals. In his first test Anthony used an E4000 dongle, which is known to have inferior...
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New ADS-B Filter with Built in Bias Tee Available
Adam who is the manufacturer of the popular LNA4ALL low noise amplifier (LNA) that is commonly used with the RTL-SDR has come out with a new product for ADS-B enthusiasts. The product is an ADS-B...
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...
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Review of Nobu’s HF Upconverter, Galvanic Isolator and 14 MHz Low Pass Filter
Back in April we posted about some new products made by Japanese RTL-SDR experimenter and product manufacturer Nobu. Nobu’s new products were a 1:1 galvanic isolator and a low pass filter. The galvanic...
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LightSail now active and transmitting data
The LightSail is a solar sailing spacecraft that has been launched by the planetary society. It is based on the “solar sail” concept, which uses a large reflective foil to harness the suns energy as a...
View ArticleHow coax cable loss affects ADS-B reception
Over on YouTube user Adam Alicajic has uploaded a video showing how coax cable loss affects the frame rate when receiving ADS-B. To do this test Adam uses a precision attenuator in between his ADS-B...
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New method for generating wideband spectograph’s with Radio-Sky and an RTL-SDR
Radio-Sky Spectrograph is a software application that is designed to produce waterfall displays similar to other software, but with a focus on observing radio astronomy phenomena. Radio-Sky...
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Monitoring FBI Surveillance Aircraft with ADS-B and an RTL-SDR
After reading an article by the Washington Post about FBI surveillance aircraft spotted in the air after the West Balimore riots, John Wiseman decided to look for more information about these aircraft....
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Testing the RTL-SDR on Windows 10
RTL-SDR.com reader Marty Wittrock has written in to let us know that he has been successful in getting his HF modified “KN0CK” RTL-SDRs (and by extension standard RTL-SDRs) to work with Zadig and HDSDR...
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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 ArticleTutorial on using an RTL-SDR for ADS-B on a BeagleBone Black from Make Magazine
Make magazine has recently released a tutorial and uploaded a video showing a nice overview on how to get an RTL-SDR set up for ADS-B decoding on a BeagleBone Black embedded Linux computer. In the...
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Some new RF filters from Adam 9A4QV
Adam 9A4QAV is mostly known as the manufacturer of the popular LNA4ALL, a low cost low noise amplifier which is often used together with the RTL-SDR to improve reception of weak signals. He also sells...
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