astronomy.network The Website of Lichfield Radio Observatory (LRO)

Hi Andy, Sorry I’ve been driving all day so just seen this. I hope I’m not teaching you to suck eggs,

As 40dB attenuation in the circuit, then need to add 40dB to reading on VNA. Once this is done, it

Those are called anti-static bags or ESD (Electrostatic Discharge) bags. They are used to protect sensitive electronic components from static electricity

Download Powerpoint Presentation on this analysis and problems found in system and solutions: https://www.astronomy.me.uk/wp-content/uploads/2025/03/NanoVNA-Analysis-LRO-H2SCRT-270225.pptx Download timelapse of data collection using

Click below for data file 1 of 2: https://www.astronomy.me.uk/wp-content/uploads/2025/02/LRO-H1Ptarmigan_ezCol_1400-27MCavSAWB_FreqRef1417-405_Integ280000_BndWdth2-4_250225_20.txt Click below for data file 2 of 2: https://www.astronomy.me.uk/wp-content/uploads/2025/02/LRO-H1Ptarmigan_ezCol_1400-27MCavSAWB_FreqRef1417-405_Integ280000_BndWdth2-4_250226_00.txt

Click below to download Steve’s instructions (23 February 2025): https://www.astronomy.me.uk/wp-content/uploads/2025/02/Steve-Barrett-Liverpool-Uni-How-to-build-cloud-chamber-Feb-2025.pdf

In the UK, Military Band III typically covers the frequency range of 225 MHz to 400 MHz. This band is primarily

The following link goes to such a calculator (this link works as of 23 February 2025): https://www.gb.nrao.edu/GBT/setups/radvelcalc.html Further discussion on

I asked this question to ChatGPT today, which gave following answer: Aluminium and zinc spray paints contain fine metal particles

Click on links below to download PDF versions of these articles: https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-3-days-LRO-data-with-ezCon250124b-script-Rinearn3D-FINAL-270125@2300-revised-150225@2000-2.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-Integration-Times-ezCol-FINAL-280125-revised-150225@2000-2.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-on-2-WTMicrowave-Cavity-Filters-FINAL-revised-150225@2000-2.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-on-1420-1427MHz-Chinese-Cavity-Filter-Andrew-Thornett-J-SARA-Nov-Dec-2024-2.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-on-2500-hour-LRO-Milky-Way-hydrogen-map-060124-161124-Andrew-Thornett-J-SARA-Nov-Dec-2024-2.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-on-Mapping-Milky-Way-arms-in-3-spatial-dimensions-Andrew-Thornett-J-SARA-Jan-Feb-FINAL-120125@2200-revised-150225@2000-2.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-on-mapping-Milky-Way-data-to-sphere-Andrew-Thornett-J-SARA-Jan-Feb-FINAL-130125@2200-revised-150225@2000-2.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-on-simple-weather-resistant-housing-Nooelec-SAWBird-H1-LNA-130125@2200-revised-1502225@2000-2.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/02/SARA-Journal-article-on-Solar-Cooker-Dish-RT-Andrew-Thornett-J-SARA-Nov-Dec-2024-2.pdf