Pulsars don’t have a single “pulsar frequency” the way spectral lines do.
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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…
2025
Ted Cline’s Python command to set up basic tools for RA on Linux
sudo apt install git cmake build-essential gqrx-sdr cubicsdr libsoapysdr-dev soapysdr-tools gr-osmosdr uhd-soapysdr
Description of SAWBird H1+ LNA from Nooelec’s own website 23/11/2025
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…
What’s Different Between different Nooelec versions of the RTL-SDR device?
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 Linux Ubuntu when error comes up to say Snap can’t update as it is currently running?
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…
How to Run a Shell Script in Linux
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,…
Ubuntu setup for USRP B210 from SumanSynth/ubuntusetupfor-b210 (Public Github Site 23/11/2025)
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
HamGeek B210 VS HamGeek B210 PRO USRP B210 Software-Defined Radio Devices
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…
Specifications of HamGeek AD9361 RF 70MHz-6GHz SDR Software Defined Radio USB3.0 Compatible with ETTUS USRP B210
From https://www.hgeek.com/products/hamgeek-ad9361-rf-70mhz-6ghz-sdr-software-defined-radio-usb3-0-compatible-with-ettus-usrp-b210 This gives an idea of specifications of USRP B210 systems Description:The USRP B210 provides a fully integrated, single-board, Universal Software Radio Peripheral (USRP™) platform with continuous frequency coverage…