M-Class Flare detected at LRO 31/3/2025 via UKRAA 23.4KHz SID monitor
Sudden Ionospheric Disturbances (SIDs) are changes in power level of very low frequency signals detected with simple equipment in our
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astronomy.network The Website of Lichfield Radio Observatory (LRO)
Andrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net
Catalogues of H1 sources (hydrogen)
The THINGS survey is what you are looking for – research paper (web) can be seen below: https://iopscience.iop.org/article/10.1088/0004-6256/136/6/2563/meta Download above
Read moreCoaxial cable for radio astronomy from Norman Pomfret
Co-axial cable Impedance. Matching impedance is not too critical when you are not transmitting POWER. where out of phase reflections can cause
Read moreInstructions on using 20m Skynet radio dish at Green Bank Observatory
Observing Advice for the NRAO Skynet 20-meter telescope Following is from 22/3/2025 on following link: https://www.gb.nrao.edu/20m/obsadvice.html Links UNC Skynet 20m
Read moreMy data so far from 20m Skynet dish at Green Bank Observatory
SARA members have access to this telescope, providing an incredible opportunity to use a professional telescope for personal observations, which
Read more1m Triax Satellite Dish arrives for water maser radio observing programme
Another project underway is water maser radio observing. This requires a 1m dish (arrived today, below) and an LNB for
Read moreVideo from inaugural meeting of British Astronomical Association Radio Astronomy Group Hydrogen Line Group
Click below to download video:
Read moreHow to zero resistance measurements on VA40B Multimeter
I own the VA40B Multimeter – part of my testing regime for aerials involves measuring resistance. To ensure accurate resistance
Read moreDirection of movement and Doppler shift in radio frequencies
In cosmology, a positive Doppler shift in radio waves means an object is moving away from us. This happens because the waves
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