Short answer: the most expensive single-component front-end parts used for 1.420 GHz (H-line) work are cryogenic HEMT/InP LNAs and the associated cryogenic front-end systems (LNA + cryostat + cryocooler). Top…
Pulsars don’t have a single “pulsar frequency” the way spectral lines do — instead they emit broadband radio noise with periodic pulses, and what we observe are: Here are the…
sudo apt install git cmake build-essential gqrx-sdr cubicsdr libsoapysdr-dev soapysdr-tools gr-osmosdr uhd-soapysdr
This might be of interest to folks interested in amateur hydrogen line radio astronomy – it is the description of the SAWBird H1 directly from Nooelec’s website today 23/11/2025: https://www.nooelec.com/store/sawbird-h1.html…
There are quite a few different Nooelec RTL-SDR dongle versions, and the differences mostly come down to tuner chip, frequency range, stability / oscillator, size, and extra features like bias-tee.…
How to run snap update on Ubuntu when says can’t update it as running? Quick answer – summary of discussion below: Use a Loop to Stop All Snap Apps in…
From https://www.geeksforgeeks.org/linux-unix/how-to-run-shell-script-in-linux/ (23/11/2025) How to Execute Shell Script in Linux? A shell script is a text file containing a series of commands written for a shell, such as Bash, Zsh,…
This is a copy of the repository found 23/11/2025 on https://github.com/SumanSynth/ubuntusetupfor-b210 Download ZIP file below: https://www.astronomy.me.uk/wp-content/uploads/2025/11/ubuntusetupfor-b210-master.zip
From https://www.hgeek.com/products/hamgeek-b210-b210-pro-70mhz-6ghz-sdr-transceiver-software-defined-radio-replacement-for-usrp-b210?variant=45979339554981 (23/11/2025) HamGeek B210 VS HamGeek B210 PRO:1. The HamGeek B210 PRO, the newer version, consumes slightly more power than the previous HamGeek B210. However, when an external power…
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