Hilary VK2AZ made a very interesting video on how to measure the return loss of the 10GHz dish antenna. He used the next calculator to calculate SWR http://cgi.www.telestrian.co.uk/cgi-bin/www.telestrian.co.uk/vswr.pl More of VK2AZ videos you can find <here> Photo: a screenshot of YouTube VK2AZ video
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