Effect of blockage prime focus waveguide and supports on radio dish – diagrams and beam cuts
Modelling a 3 m dish at 1420.405 MHz in two ways: You’ll see: Diagrams: • Unblocked beam 2D: • Prime-focus
Read moreAndrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net
Modelling a 3 m dish at 1420.405 MHz in two ways: You’ll see: Diagrams: • Unblocked beam 2D: • Prime-focus
Read moreThis comes up a lot in both radio astronomy and satellite communication when using prime-focus reflectors. On a prime-focus parabolic
Read moreThere are several open-source software tools and libraries for interferometry / correlator / radio astronomy work. Depending on how much of
Read moreThe “loss surface area” from a prime-focus feed is just the blocked (shadowed) aperture from the feed assembly (feed + support
Read moreThe weight of a 6 ft × 4 ft sheet of plywood depends on its thickness and the wood species/density. Let’s go
Read moreWeight of a 5 ft × 5 ft sheet of fine aluminium window screening. Let’s work it out step by
Read moreGreat 👍 let’s pin down what’s pulling in xterm. On Windows GNU Radio Companion (GRC), that usually comes from a
Read moreFor a 30 cm jumper at 1420 MHz (H I line), RG174 and RG316 are effectively neck-and-neck—both cost you ~⅓–½ dB
Read moreThat error message — “unable to scan ip19” — isn’t a standard GNU Radio error on its own. It usually comes from
Read moreThat error message — “unable to scan ip19” — isn’t a standard GNU Radio error on its own. It usually comes from
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