I used cable ties to locate centre of opening of cantenna waveguide = I tested them in microwave – only very slightly warm after 2 mins suggesting little absorption at…
Very useful for radio astronomy – allows astronomer to integrate data collected in SDR# over a period of time. Download ZIP of latest IF Average plug-in on link below: https://www.astronomy.me.uk/wp-content/uploads/2025/04/IFAverage-Plugin-for-SDR-download-271224.zip
Data I have collected so far suggests I am having some flexure in the waveguide supports which changes as the elevation angle changes. Additionally, my measurement of the elevation is…
More detail on the issue: The ezRA screen output during processing of data collected from LRO-H2 using ezCol had identified that the right ascension was incorrect by -0.2 degrees. The…
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 THINGS survey research paper in PDF format by clicking here:…
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In cosmology, a positive Doppler shift in radio waves means an object is moving away from us. This happens because the waves get redshifted — their wavelength stretches, and the…
1. Visual Inspection Check for: 2. Continuity and Resistance Testing Using a multimeter: 3. SWR Measurement Use an SWR meter or antenna analyzer at 1420 MHz: 4. Feedline Loss Test…
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