Radio observation in hydrogen line (1420MHz)

How to design an effective 1420 MHz waveguide from ChatGPT

Admin January 31, 2025 No Comments

To design an effective waveguide for 1420 MHz (21 cm hydrogen line), you need to consider several factors, including waveguide dimensions, material, and feed design. Here’s a step-by-step guide to…

Processing LRO-H2(SCRT) Data collected over two days 27-28 January 2025 by ezCol in ezRA software suite, using 1400-1427MHz Cavity Filter, Nooelec SAWBird H1 LNA, KMR 400 coaxial cable, and RTL-Blog V3 Software Defined Radio; reference frequency 1422 MHz, Bandwidth 1.000, Integration of 1,100,000 samples. Processing on 30/1/2025.

Admin January 30, 2025 No Comments

Click on links below to download data: ezCol .txt data files https://www.astronomy.me.uk/wp-content/uploads/2025/01/data-300125.zip SDR Sharp data generated from conversion of above data files https://www.astronomy.me.uk/wp-content/uploads/2025/01/LRO-H2SCRT_Integ1100000_250128.zip Results of processing data in ezCon scipt…

3D processing 3 days ezCol data using latest ezCon250124b.py script in ezRA suite & using meshes/matrix data tables in Rinearn 3D 27/1/2025

Admin January 27, 2025 No Comments

This shows the repeated patterns of data emerging from the drift scans of LRO-H1(Ptarmigan) hydrogen line radio telescope at LRO & the generation of contour maps using Rinearn3D. The use…

Batch file used for collecting data using ezCol (Easy Radio Astronomy) in hydrogen line (1420.405MHz) radio telescopes at Lichfield Radio Observatory (LRO).

Admin January 22, 2025 No Comments

This is the current batch file used with LRO-H1: REM NORMAL RESOLUTION (IE STANDARD SETTINGS) cd C:\cd C:\Data\ezRA_Program+Data\LRO\py ..\ezRA\ezCol.py -ezRAObsLat 52.7 -ezRAObsLon -1.8 -ezRAObsAmsl 81.0 -ezRAObsName LRO-H1(Ptarmigan)ezCol_1400-27MCav+SAWB_LMR400_FreqRef_1422-405_Bandwidth_1-000_El-40-1_Az_163 -ezColAzimuth 163 -ezColElevation…

Comparing specifications of range of software defined radios that can be used for hydrogen line Amateur Radio Astronomy with small dishes.

Admin January 13, 2025 No Comments

Detecting the hydrogen line at 1420.4058 MHz is a popular project among amateur radio astronomers, and several software-defined radios (SDRs) are suitable for this purpose when paired with appropriate antennas…

Smallest antenna that can detect hydrogen in Milky Way

Admin January 13, 2025 No Comments

Detecting the 21 cm hydrogen line (the characteristic emission from neutral hydrogen in the Milky Way) requires a radio antenna sensitive to that wavelength. The wavelength of this emission is…

Compare performance and attenuation standard LMR-600 and flexible LMR-600 coaxial cables

Admin January 11, 2025 No Comments

This page has been created with the help of ChatGPT 11/1/2025. Compare performance and attenuation standard LMR-600 and flexible LMR-600 coaxial cables: The LMR-600 Standard and LMR-600 Flexible are both…

4D (3 spatial dimensions) mapping of Milky Way arms generated using data from LRO-H1(Ptarmigan) radio telescope obtained 29/5/2024-17/8/2024 and used to create the second Milky Way map from LRO in 2024. Today’s images processed in Rinearn3D on 9/1/2025.

Admin January 9, 2025 No Comments

Comparison of results from processing LRO-H1(Ptarmigan Array Data) collected by ezCol.py (ezRA software suite) with two filter arrangements 1st to 8th January 2025

Admin January 8, 2025 No Comments

Filter arrangement 1: Ptarmigan Dipole Array ==> WT Microwave 1418-1422 MHz Cavity Filter ==> Nooelec SAWBird LNA ==> RTL-SDR Blog V3 Software Defined Radio. Filter arrangement 2: Ptarmigan Dipole Array…