Lichfield Radio Observatory, UK. Azimuth 168 degrees. Elevation 75 degrees. I have tested various distances of the feed from the centre of the dish over several weeks and concluded that…
To solve this question, I think of my dish as fixed on the sky at az 168° / el 75°. Over 24 hours, the Earth’s rotation sweeps different parts of…
I have posted this recommendation from Doug. Although I have purchased one of these cards, I cannot personally vouch for how effective it is, now how it compares to other…
I used Hammerite silver paint – took 4 x 1 litre tins to cover all telescopes front and back (except back of mounted 150cm solar cooker dish which is sprayed).
I have successfully replicated the experiment in the Comic Watch manual showing change in rates measured as result of radioactive test source (radioactive rock from ebay) on top of detectors…
Two detectors in coincidence mode, one on top of other. Radioactive rock test sources from ebay – large and small ones – plus I have some pieces of lead which…
I am grateful to Alex Pettit for helping me calculate the dimensions. LRO-H2 Hydrogen Line Radio Telescope: Measurements in cm: Diameter 150.00Depth 24.00Focal Length 58.59 Radius Depth x 0.00 y…
Does this mean in practice that there is no practical reason to need any other type of feed other than cantenna or loop feed for a small amateur radio astronomy…
Information from Alex Pettit: Courtesy of Marcus Leech & CCERA: It is Spot On. Two Bright Areas Dec+40 dg RA 2030 hrs Dec+20 dg RA 0615 hrs On small systems,…
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