Coaxial 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
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astronomy.network The Website of Lichfield Radio Observatory (LRO)
Andrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net
Radio Astronomy
Instructions 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 moreVideo from inaugural meeting of British Astronomical Association Radio Astronomy Group Hydrogen Line Group
Click below to download video:
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
Read moreChatGPT advice on how to look for cause of mal-performance on 1420MHz-tuned Yagi aerial 17/3/2025
1. Visual Inspection Check for: 2. Continuity and Resistance Testing Using a multimeter: 3. SWR Measurement Use an SWR meter or
Read moreInformation on Ka-band from Wikipedia
The Ka band (pronounced as either “kay-ay band” or “ka band”) is a portion of the microwave part of the electromagnetic spectrum. The designation “Ka-band” is
Read moreSettings file for LRO-M1 Meteor Radio Scatter Experiment Spectrum Lab 15/3/2025
Click below to download file – ZIP file that needs to be unzipped to get USR file for Spectrum Lab:
Read moreM31 “Radio Map” using data from Green Bank 20m Radio Telescope 13/03/25
My first “map” of M31 – results of my first observing programme using the 20m dish at Green Bank Observatory.
Read moreMeteor Radio Scatter Conditional Actions File for Spectrum Lab Software used at LRO 14/3/2025
; Exported “Conditional Actions” for Spectrum Lab if( never ) then # ====== User definable options ====== if( never )
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