Result seems a bit high, when considering this following advice from ChatGPT: The resistance of aluminium window screen over 50 cm can vary enormously depending on how you measure it,…
This netting will extend perimeter by 40 or 50cm around the edge and help reduce ground noise (I hope). Am I doing anything wrong before I go further? Andy
For say a 10 inch telescope mirror what size dish would equal the same resolving power. And even more mind blowing A 60‑foot (18.3 m) radio dish at 21 cm has the…
I am hoping to perform this test on LRO-H4 in the next week if I can. The following shows the current elevation of the Sun from Lichfield UK so I…
Nooelec’s main RTL-SDR receiver families are: Here are Nooelec’s commonly sold software-defined radio (SDR) models and product lines (consumer/ham/RTL-based and more advanced units): Notes: For exact current model names, specifications,…
https://github.com/ericgibert/supersid
I have not been able to check the following method – so cannot guarantee that it works, nor that it won’t damage your device. If my SDR does not dry…
For a dish: F = (F/D) x D where: F = focal length (support length) F/D = focal ratio D = dish diameter Example for a 1.0 m dish: +———–+—————-+…
Yes—if you mean isotropic radiator, then an ideal, non-rotating black hole is about as close as nature gets to one. An isotropic radiator emits the same power in every direction.…
For 1420 MHz work, the advantage of a professionally manufactured WR-650 waveguide is usually much smaller than many people expect. Electrical performance A commercial WR-650 section will have: At 1420…
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