Adding framework to LRO-H2 Solar Cooker 150cm rolled steel dish
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This framework is designed to support an aluminium window netting to reduce ground noise. However, as soon as I added the wood to this an immediate potential issue arose –…
Rectangular paint tin purchased to make WR-650 May 2026
I purchased one of these to make a cheap homemade WR-650 waveguide for hydrogen line work.
Cooling SDR on LRO-H4(SETI Horn of Plenty) [hydrogen line radio telescope at LRO].
The SDR (NESDR) crashed a number of times when temperature locally got up to 32 C a few weeks ago, very unusual for us. The miniPC and SDR sits in…
Sourcing pipe to extend the perimeter of the 150cm satellite dish that forms LRO-H2
I would like to extend the edge of my 150cm satellite dish by 40-50cm all around with some aluminium mesh. This does not need to follow the parabolic as it’s…
Testing resistance of aluminium window screening I bought for LRO-H2 perimeter extension to reduce ground noise
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,…
Installing supports on LRO-H2 Solar Cooker Radio Telescope (hydrogen line 150cm dish) for aluminium netting
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
The Bob Stricklin hydrogen line signal generator for testing hydrogen line radio telescopes
Bob has designed and made a neat little patch antenna which attaches to a NanoVNA to produce a 1420MHz signal to use to test hydrogen line systems. (1) Attach patch…
Performance of 150mm x 50mm aluminium box section as waveguide for hydrogen (homemade WR650) vs rectangular oil tin
The WR650 waveguide is an ideal choice to use with the SETI Horn of Plenty Hydrogen Horn Radio Telescope. I have noticed that 150mm x 50mm aluminium box section is…
Factoids about radio telescopes vs optical telescopes
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…
Testing radio telescopes with drift scan of the Sun
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…