Testing AD8302-based interferometer at LRO using Signal Generator
AD8302-based interferometer uses 2 x Nooelec 1.4GHz mesh 60cm x 100cm dishes and 3 x Nooelec SAWBird H1 LNAs on
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astronomy.network The Website of Lichfield Radio Observatory (LRO)
Andrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net
Radio observation in hydrogen line (1420MHz)
Testing voltages on outputs AD8302 board interferometer Jon Lustrup vs (Andrew Thornett) 26/1/2024
Jan kindly tested his AD8302 board to see what voltages he gets – and I have similarly tested mine today.
Read moreProcessing additive interferometer data 21-220124 gain 50 using ezRA
Data from 21-22/1/2024 @ LRO – 5m distance between 2 x Nooelec 1.4GHz 60x100cm mesh aerials
Read moreLessons learnt regarding interferometer yesterday!
Interferometers need hardware bias tees for SAWBird H+ 1420MHz filters with cascaded amplifiers, (which they also need as AD8302 chip
Read moreAdvice 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
Read moreSchematic 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
Read moreDemonstrating 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
Read moreMeasuring 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
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