Copper tape that has oxidized to form copper oxide is much less electrically conductive than pure metallic copper — in fact, copper(I) oxide (Cu₂O) and copper(II) oxide (CuO) are both…
Original PowerPoint downloadable from link below. One thing I missed in it was to say that all monitor screens near telescope or aerial should be switched off and linear power…
The galaxies M81 (Bode’s Galaxy) and M82 (the Cigar Galaxy) are very close together in astronomical terms. Here’s how close: 🔭 Angular Separation (as seen from Earth): 📏 Physical (Spatial)…
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This page has been created with the help of ChatGPT 11/1/2025. Compare performance and attenuation standard LMR-600 and flexible LMR-600 coaxial cables: The LMR-600 Standard and LMR-600 Flexible are both…
These plots have been produced using data from Lichfield Radio Observatory (LRO) between 29 May 2024 and 18 August 2024, processed using new functions in latest version of Ted Cline’s…
Shows very low power levels on my system compared to the two comparators. Andy
From: ‘Alex P’ via Society of Amateur Radio Astronomers <sara-list@googlegroups.com>Sent: 04 January 2025 10:28To: Society of Amateur Radio Astronomers <sara-list@googlegroups.com>Subject: Re: Adapter attenuation ~ 0.15 dB / adapter Please ‘Review’…
From: ‘Alex P’ via Society of Amateur Radio AstronomersSent: 04 January 2025 10:28To: Society of Amateur Radio AstronomersSubject: Re: Adapter attenuation ~ 0.15 dB / adapter
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