Above From talk by John Savage at BAA Radio Astronomy Conference, Sherwood Observatory, UK, 3 October 2026. The important point is that the meteor trail does not need to behave…
DIGITAL INCLINOMETERS FOR RADIO TELESCOPE DISH Yes – a digital inclinometer can measure the actual vertical inclination/elevation of a radio telescope dish. Most handheld digital angle gauges contain a MEMS…
FOCUSING AND DEFLECTING COSMIC-RAY MUONS Yes, muons can in principle be focused or redirected into a smaller area, because muons are electrically charged particles. However, cosmic-ray muons are relatively energetic…
Yes — the Sherwood Observatory solar radio dish you mean operates at about 2.8 GHz (2800 MHz), not 12 GHz. At 2.8 GHz, the wavelength is about 10.7 cm, which…
Cosmic-ray muons reaching the ground have a very broad range of energies. Most atmospheric muons are produced when high-energy cosmic rays strike nuclei in the upper atmosphere, creating pions and…
Thank you for sending both the two rubidium 5650A time sources I have purchased from you. The second one is good = 340 seconds avg. and I then get a…
If by “other landers” you mean later Mars spacecraft such as Mars Pathfinder, the apparent roughly $100 million versus $10 million difference for particular components/subsystems is largely because Viking was…
https://www.astronomy.me.uk/wp-content/uploads/2026/09/Discovery_Dish_Solar_Continuum_and_Interferometry_System_Validation_30_Sep_2026_Paper_FINAL-sent-to-Brian-Rouke-300926@2100.pdf
I now have 2nd one of these – video comparing it to Leo Bodnar 1421 GPS disciplined time source can be downloaded at: https://files.ad.thornett.net/astronet/Testing2ndRubidium5650A300926@1228-edited.mp4 Quite big file – 8 GB…
SDRplay RSP2: It goes remarkably low: For your VLF work, the important part is the High-Z input. It has a nominal 1 kΩ balanced input and a 30 MHz low-pass…
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