Tohtsu CX-520D coaxial relay product info from DX Shop 3 December 2025
https://www.astronomy.me.uk/wp-content/uploads/2025/12/Tohtsu-CX-520D-product-info-from-DX-Shop-031225-reduced.pdf
https://www.astronomy.me.uk/wp-content/uploads/2025/12/Tohtsu-CX-520D-product-info-from-DX-Shop-031225-reduced.pdf
I have installed usbrelay softwate on Ubuntu for my 4 relay control board (which works on Windows). Running the command usbrelay detects device but can’t open it. If usbrelay sees…
REM Identify data folder structure. REM The folder structure should be LRO folder with sub-folder called data. Save .txt data files in data and any .ezb and .npz data files…
https://files.ad.thornett.net/astronet/BAA_H-Line_Meeting_011225.mp4
In most practical radio-astronomy and communication setups, a full-wavelength antenna is not inherently “better” than a half-wavelength one—they simply behave differently, and the choice depends on what pattern, impedance, and…
Short answer: the SAWbird H1’s gain is essentially fixed by its RF amplifier bias network and SAW filter — within the manufacturer’s recommended supply window (≈3.3–5.5 V) you should see…
Here’s what’s inside — i.e. the chips used: In short: R820T2 tuner + RTL2832U demodulator/ADC. Since you’re already familiar with SDR and radio-astronomy, here’s a summary of the key components…
You can add a folder shortcut to the Ubuntu desktop by holding down Ctrl + Shift while dragging the folder from the file manager to your desktop. Alternatively, you can…
To update a snap app, first completely close the app by using killall in the terminal. Then, use sudo snap refresh to update all snaps, or sudo snap refresh to…
Hi Andy, https://www.astronomy.me.uk/wp-content/uploads/2025/11/B210_stats.grc_.txt https://www.astronomy.me.uk/wp-content/uploads/2025/11/baa_seminar_USRP_IF_RF.grc_.txt The BAA seminar flowgraph won’t work without some further modules (created by Marcus Leech). I can explain this to you. The B210 fg is what I…