Processing additive interferometer data 21-220124 gain 50 using ezRA
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Data from 21-22/1/2024 @ LRO – 5m distance between 2 x Nooelec 1.4GHz 60x100cm mesh aerials
Radio Astronomy
Lessons learnt regarding interferometer yesterday!
Interferometers need hardware bias tees for SAWBird H+ 1420MHz filters with cascaded amplifiers, (which they also need as AD8302 chip requires certain level power input on SMA connectors to work)…
Advice on how to progress with my interferometer based on AD8302 amplitude phase comparator board 8/1/2024
Correspondence with Jan Lustrup: Hi Andy…. You want to test changes of phase between the ports, not frequency! Use the same frequency generator to a 2 way power splitter. One…
Schematic of Ted Cline’s Additive Interferometer Nov 2023
Click below to view a schematic of Ted Cline’s Additive Interferometer. Andy http://astronomy.me.uk/wp-content/uploads/2024/01/Schematic-of-Ted-Clines-Additive-Interferometer-Nov-2023.pdf
LRO Radio Meteor Scatter Experiment shows rise in meteor count with Quandrantid Meteor Shower 4/1/2024
Demonstrating the apparatus works, which I am glad to hear! The RMOB upload below (LRO data) shows clear increasing meteor detection count from Graves 143.050MHz USB over last 24 hours…
Demonstrating likely presence of dark matter in Milky Way at LRO
The two slides below show velocity and mass distribution of Milky Way from LRO data 30/12/2023. Andy
Am I getting correct muon counts with my two muon detectors at LRO in coincidence mode? Do other sources of muons affect the detectors from the ground and do we need to take account of these?
Dr Jonathan Lister: We do get upward directed muons their source being radioactivity from soil, rocks and building materials and once the gamma rays enter the scintillator they interact with…
Measuring data at 102.1 degrees elevation with Ptarmigan Array (Milky Way Hydrogen Map)
It appears my map with the extra 96.6 degrees elevation readings is now close to maximum I can achieve (see plot on previous post). I am going to try adding…