Using USRP B210 SDR with GNU Radio Win10 revised 14/10/2025
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Collated document I have put together, which I think might tell people how to do this……no promises! I got it working once, but twice might be too much to ask!!…
2025
First output from SDRplay RSPduo GNU Radio based on modified DSPIRA GRC using small handheld Moxon aerial on aerial input 1 of 2 — 15/10/2025
This will not be Milky Way as inside and Doppler shift on the 1420 MHz line too big – about 190 km/s (calculated from the difference in frequency on plot…
Computer Monitors and 1420 MHz Radio Frequency Interference (RFI)
The short answer is: most computer monitors do not directly emit significant power at 1420 MHz, but they can produce harmonics, local oscillator leakage, or broadband RF noise that can…
How to install “.appimage” files in Linux Ubuntu
How to install “.appimage” files in Linux Ubuntu Yes, Linux; the Linux packages are distributed as an “.appimage” for 32-bit and 64-bit distributions, and should run across all major Linux…
Size of corner reflector and performance for hydrogen line observing
Good question, Andrew — short answer: yes, up to a point, a larger corner reflector will generally improve hydrogen line observing, but there are trade-offs. Here’s the breakdown: 1. Collecting…
Using RSPUno for interferometry
To use RSPUno for interferometry, you’ll need to understand both the hardware configuration and the software/data processing workflow. RSPUno is a system derived from the Radio-SkyPipe software but optimized for…
How to use 2 orthogonal monopoles with phasing cable on cantenna waveguide to improve signal reception
Two monopoles at 90 degrees in cantenna One connects to splitter immediately Two connects via coax either 1/4 wavelength or 5/4 wavelength (more practical length = 26.5cm x 66% (velocity…
High Z ant(enna) connector on SDRplay RSPduo.
From: A. C.Sent: 06 October 2025. Andrew, I was going to mention but I forgot, in the after RTOP meeting yesterday you asked what the High Z antenna connectors in…
How to install Linux Ubuntu from a bootable USB drive with disc image when no “Install Ubuntu” icon appears.
I have booted Ubuntu from USB drive and would like to permanently install it on the computer. No install button appears. That’s a common issue, and it’s usually easy to…
Working installation instructions for Andrew Sutkowski’s Linus Ubuntu disc image that includes GNU Radio, SDR drivers and GNU SDR modules including SDR Play 3 module for GNU Radio and other radio astronomy software pre-installed on image.
These instructions install the software directly onto an Intel PC rather than booting into Linux on to USB pendrive or SD card. These instructions use a paid-for piece of Windows…