Reflective properties of metals relevant to dishes
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From the book “Field Maxima Inside Habitable Structures Exposed to 2.45 GHz Plane Wave Radiation”:
June 2026
What do you call the 3 or 4 stalks which hold the feed in place on radio dish?
The three stalks that hold the feed assembly in front of a radio dish are usually called feed support struts or feed support legs. Other terms you may encounter are:…
Brightest masers for amateurs to observe
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…
LRO-H5: Introducing a new hydrogen line radio telescope at Lichfield Radio Observatory
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…
The brightest masers for amateur radio astronomers to observe
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…
Minimising spillover with small diameter dishes
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…
Website which let’s you look for ISS, CSS, and Hubble, along with Starlink trains
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…
Website for the UKRAA Central Server of PicoMuon data
http://ukraa.com/muon
What is the link equation (also known as the link budget equation) and how does it apply to amateur radio astronomy?
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…
What is the link equation (also known as the link budget equation)?
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…