What is difference between balanced and unbalanced on microphone input?
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This is one of those things that sounds boring until it suddenly explains all your noise problems. Alright — let’s break it down in human terms. 🎙️ Unbalanced microphone input…
2026
How to restore a Veeam server-led Linux backup (Agent managed by Backup & Replication) as a bare-metal / full image restore
To restore a Veeam server-led Linux backup (Agent managed by Backup & Replication) as a bare-metal / full image restore, you must use Veeam Recovery Media — not just file-level…
How does a modern software defined radio attain an less erratic noise floor than older amateur radio sets?
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,…
How does a mutual ground level form between receiver and transmitter at distance from each other? And how does this apply to radio astronomy?
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”…
What is a Pin Diode?
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 in radio astronomy?
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…
What are professional radio astronomy dishes made of?
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: 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…
ezPlotly software to create 3D rotatable webpage plot from ezRA data
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…