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Logging Meteor Scatter Observations Online
Thank you to Florent for submitting his website which contains a live log of his meteor scatter observations. Meteor scatter occurs when radio signals reflect off the ionized trail left behind by...
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Vela Pulsar Glitch Detected with RTL-SDR Based Radio Telescope
On February 1st 2019 the HawkRAO amateur radio telescope detected a "glitch" during it's observations of the Vela Pulsar. A pulsar is a rotating neutron star that emits a beam of electromagnetic...
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PICTOR: An Open Source Low Cost Radio Telescope based on RTL-SDR
PICTOR is an open source and open hardware radio telescope that aims to promote radio astronomy on a budget. It consists of a 1.5 meter parabolic dish antenna, 1420 MHz feedhorn, a two stage low noise...
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New LNA + Filter for Radio Astronomy Hydrogen Line Observations Released by...
NooElec have recently released a new LNA + filter combo called the "SAWbird+ H1 Barebones" which significantly lowers the entry bar for new amateur radio astronomers. It's designed to be used with...
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Building An Open Source SDR Based Hydrogen Line Radio Telescope
Over on Reddit we've seen a post by u/ArtichokeHeartAttack who has been working on a hydrogen line radio telescope, based on an RTL-SDR dongle and horn antenna designs by the DSPIRA program, and the...
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Updates on the PICTOR Low Cost Open Source Radio Telescope Based on RTL-SDR
Back in July we posted about PICTOR, an open source and RTL-SDR based radio telescope project. The owner of the project recently wrote in and wanted to share some updates. His text is below: A few...
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A Motorized Backyard Radio Astronomy Telescope made with an RTL-SDR
A Geostationary Satellite Imaged with the RTL-SDR Based Mini Radio Telescope Just a few days we posted an update on the PICTOR open source radio telescope project. That project makes use of an RTL-SDR...
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Creating a 21cm Galactic Sky Map with an Airspy and 1.8m Dish
Marcus Leech from ccera.ca is a pioneer in using low cost software defined radios for observing the sky with amateur radio telescopes. In the past he's shown us how to receive things like the hydrogen...
View ArticleAstrophiz Podcast Interviews Steve Olney: Capturing the 2019 Vela Pulsar...
Back in May 2019 we posted about Steve Olney's HawkRAO amateur radio astronomy station which was the only station in the world to capture the 2019 Vela Pulsar "glitch" which he did so using his RTL-SDR...
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A Hydrogen Line Telescope Made from Cereal Boxes and an RTL-SDR
SpaceAustralia.com have recently been hosting a community science project that involves encouraging teams to build backyard radio telescopes that can detect the arms of our Milky Way Galaxy by...
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Cheap and Easy Hydrogen Line Radio Astronomy with an RTL-SDR, WiFi Parabolic...
We've recently been testing methods to help budding amateur radio astronomers get into the hobby cheaply and easily. We have found that a low cost 2.4 GHz 100 cm x 60 cm parabolic WiFi grid antenna,...
View ArticleStarlink Doppler Reflections Caught with an RTL-SDR
Over on YouTube William IU2EFA has been uploading multiple short "meteor scatter" videos. This involves using an RTL-SDR to briefly receive distant radio stations via the RF signal reflecting off the...
View ArticleRadwave Updates: Browse SETI Spectrum Data on your Android Device
Back in February 2019 we first posted about Radwave, an Android SDR App for RTL-SDR dongles. It has some interesting features not found in other Apps like the ability to easily zoom, pause and rewind...
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CygnusRFI: New RFI Analysis Tool for Ground Stations and Radio Telescopes
Thank you to Apostolos for submitting information about his new open source program called "CygnusRFI". CygnusRFI is a tool designed for analyzing radio frequency interference (RFI) with a focus on how...
View ArticleYouTube Video Replicates our Galactic Hydrogen Line Detection Tutorial
Earlier in the year we posted a tutorial showing how to detect the Galactic Hydrogen Line at home with less than $200 in components. All that is really needed is a 2.4 GHz WiFi dish, an RTL-SDR and an...
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A Hydrogen Line Radio Telescope made from a Homemade Helical Antenna and RTL-SDR
Thank you to Geoff for submitting his experience with creating a hydrogen line radio telescope out of an easy to build helical antenna, Raspberry Pi, LNA and an RTL-SDR. The Hydrogen Line is an...
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Building a Motorized Hydrogen Line Radio Telescope with a DIY Horn Antenna,...
Just on the back of yesterday's post about a helical antenna Hydrogen line radio telescope, we have another submission. This telescope is a bit more advanced as it consists of a large motorized horn...
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Imaging the Milky Way in Neutral Hydrogen with an RTL-SDR
Over on Facebook Job Geheniau has recently been sharing how he's taken an image of our galaxy (the Milky Way) with a radio telescope consisting of a 1.5 meter dish, RTL-SDR and a few filters and LNAs....
View ArticleA Talk on 21cm Hydrogen Line Amateur Radio Astronomy
The Amateur Radio Experimenters Group (AREG) recently held an online talk with guest speakers Phil Lock and Bill Cowley, talking about amateur radio astronomy. In the talk they note how they use an...
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Imaging the Milky Way in Neutral Hydrogen with an RTL-SDR Part 2
Last month we shared information about Job Geheniau's success with using an RTL-SDR dongle to image our galaxy in neutral Hydrogen. Our galaxy is full of neutral Hydrogen, and lots of neutral Hydrogen...
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