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…
You are probably thinking of Louis Slotin. On 21 May 1946 at Los Alamos Laboratory, Slotin was demonstrating a criticality experiment using a plutonium core later nicknamed the “Demon Core.”…
Admin