The answer isn’t “magic DSP.” It’s architecture. And a bit of ruthless engineering discipline. Modern SDRs don’t actually have “less noise” in the physics sense — they have more stable,…
This is one of those things that feels mystical until you unpack it — then it’s just physics quietly doing its thing. Short answer:There isn’t really a “mutual ground level”…
Absolute workhorse of RF switching. WHAT IS A PIN DIODE? A PIN diode is a semiconductor diode with three layers: The middle layer is a thick, undoped (intrinsic) region. That…
WHAT IS A DICKE SWITCH? A Dicke switch is a rapid RF switch used in radio astronomy to reduce receiver gain drift. It switches quickly between: This technique was invented…
Professional radio astronomy dishes are engineered for electrical reflectivity, structural rigidity, thermal stability, and low weight. The exact construction depends on frequency range (long-wavelength vs millimetre work), but most large…
Hook-Up Wire: Technical Reference Guide Hook-up wire is a single-conductor insulated wire used for internal electrical connections within electronic and electrical equipment. It is most commonly applied in low-voltage systems…
Download ezPlotly files here: https://www.astronomy.me.uk/wp-content/uploads/2026/02/ezPlotly260214b.zip Hi Andy, Maybe try this. I attach 2 new programs, ezCon260214a.py ezPlotly260214b.py Very rough hacks but fun. Run something like, py ..\ezRA\ezCon260214a.py data -ezCon087Csv 4…
If the horizontal speed in Spectrum Lab isn’t changing on the scrolling plot, it’s usually because the display timing is controlled somewhere else. In Spectrum Lab, the time axis speed…
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