Alex Pettit Plate Yagi vs Ptarmigan Array for mapping Milky Way at LRO
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I have set up the new aerial from Alex Pettit at SARA next to my existing Ptarmigan ex-military dipole array, to see which is able to get better hydrogen signal…
Radio Astronomy
Assembling Alex Pettit’s Hydrogen Line Yagi antenna
Loosely assembled – I’ve asked Alex some questions before I complete assembly. Andy Hi Alex Before I get the old soldering iron out can I check couple things with you:…
SARA Scope in a Box original download & ezRA suite software & data file structure
ZIP folders for both essential pieces of software for mapping Milky Way. https://www.astronomy.me.uk/Large_media_uploads/ScopeBoxorigdownload.zip https://www.astronomy.me.uk/Large_media_uploads/ezRA.zip
Latest Milky Way map & associated plots at 1420.405MHz (hydrogen) using Ptarmigan Array at LRO (using data up to 17/8/2024)
Processing and plotting with ezRA suite software (Ted Cline)
Failure to detect solar interferometric fringes at LRO, Lichfield, UK, 13-15/8/2024
Calculating expected fringe period of interferometric solar traces, if detected (c/o Mike Otte, SARA): Fringe rate = Baseline / wavelength *angular rotation of earth * cos declination ex: Fringe period…
Does this trace show interferometry interference spikes from the Sun?
Latest attempt to record interference spikes using radio interferometer. This time, I used Mike’s AD8302-based receiver, with computer now removed 50cm outside box away from receiver and also 6 point…
Photos of interferometry receivers at LRO 27/7/2024
2 x Nooelec 1.4GHz mesh antennae
How Rhys got KerberosSDR to work on my Raspberry PI 13/7/2024
He copied latest firmware file (only 3.7MB – NOT all the files) on latest Github Raspberry PI repository and copied to boot folder on Raspberry PI 4B SD card and…
Successful processing all viable hydrogen data from LRO Ptarmigan Array to 22/6/2024
My Milky Way map after 6 months! Ptarmigan Ex-Military Band 3 array. Hydrogen 1420.405MHz Andy Right click link below to download all viable LRO data up to 22/6/2024 (NPZ and…
Replacing power from computer to separate power supply for Nooelec SAWBird H1+ LNA on Ptarmigan Array Milky-Way-Hydrogen-mapping computer
In order to stop me making the mistake of forgetting to run “Bias-tee-on” each time I restart this computer, I have added a separate 5V power supply to the LNA…