Much work has been done on optimising feeds to illuminate a dish as efficiently as possible reducing spill over which on receive means the feed sees ground raising the system…
From Eduard Mol 17/6/2026: Keep in mind masers are variable, so any list will be more of an indication. W49 is the best one to start out with, because it’s…
This is built around an 140cm ex-communications radio dish which used to adorn the side of an university physics department. It is paired with a Discovery Hydrogen Line feed and…
Keep in mind masers are variable, so any list will be more of an indication. W49 is the best one to start out with, because it’s consistently very bright and…
Hello Andrew Sorry for the slow reply … lots going on here. Much work has been done on optimising feeds to illuminate a dish as efficiently as possible reducing spill…
With small diameter dishes, a beam-narrowing Feed Choke Ring is a bit large. It might be preferable to build a dish with an f/D ratio ~ 0.27 – 0.30 to…
This website agrees with the ISS tracker, but let’s you look for ISS, CSS, and Hubble, along with Starlink trains. You can look at the Sun, the Moon and the…
http://ukraa.com/muon
When reading this post, also consider the comment made by Alex Pettit at the bottom of the post. The link equation can be written as: where: In free space, the…
link equation In telecommunications, the link equation (or link budget) is a fundamental calculation used to determine whether a wireless signal will be received intelligibly. It evaluates signal strength by…
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