![Cheap and Easy Hydrogen Line Radio Astronomy with an RTL-SDR, WiFi Parabolic Grid Dish, LNA and SDRSharp Cheap and Easy Hydrogen Line Radio Astronomy with an RTL-SDR, WiFi Parabolic Grid Dish, LNA and SDRSharp](https://www.rtl-sdr.com/wp-content/uploads/2020/01/Wifi_grid_photo_ra2.jpg)
Cheap and Easy Hydrogen Line Radio Astronomy with an RTL-SDR, WiFi Parabolic Grid Dish, LNA and SDRSharp
![Rtl-sdr V3 R820t2 Rtl2832u 1ppm Tcxo Sma Hf Bias Tee Software Defined Radio With Antennas Kit - Buy Rtl-sdr V3,Rtl-sdr V3 Sdr Product on Alibaba.com Rtl-sdr V3 R820t2 Rtl2832u 1ppm Tcxo Sma Hf Bias Tee Software Defined Radio With Antennas Kit - Buy Rtl-sdr V3,Rtl-sdr V3 Sdr Product on Alibaba.com](https://sc02.alicdn.com/kf/H09aa0432acf84458ad08b35a34c0b2194/230923493/H09aa0432acf84458ad08b35a34c0b2194.jpg_.webp)
Rtl-sdr V3 R820t2 Rtl2832u 1ppm Tcxo Sma Hf Bias Tee Software Defined Radio With Antennas Kit - Buy Rtl-sdr V3,Rtl-sdr V3 Sdr Product on Alibaba.com
![rtl-sdr.com al Twitter: "Building a Motorized Hydrogen Line Radio Telescope with a DIY Horn Antenna, Drill Motor and RTL-SDR https://t.co/0ua0mfKjcN https://t.co/E22M6RXEE2" / Twitter rtl-sdr.com al Twitter: "Building a Motorized Hydrogen Line Radio Telescope with a DIY Horn Antenna, Drill Motor and RTL-SDR https://t.co/0ua0mfKjcN https://t.co/E22M6RXEE2" / Twitter](https://pbs.twimg.com/media/EZGL5loVAAIywMe.jpg)
rtl-sdr.com al Twitter: "Building a Motorized Hydrogen Line Radio Telescope with a DIY Horn Antenna, Drill Motor and RTL-SDR https://t.co/0ua0mfKjcN https://t.co/E22M6RXEE2" / Twitter
![Cheap and Easy Hydrogen Line Radio Astronomy with an RTL-SDR, WiFi Parabolic Grid Dish, LNA and SDRSharp Cheap and Easy Hydrogen Line Radio Astronomy with an RTL-SDR, WiFi Parabolic Grid Dish, LNA and SDRSharp](https://www.rtl-sdr.com/wp-content/uploads/2020/01/milky_way_rtl_sawb.jpg)