Brian Kirby wrote:
20 log(base10) (diameter in meters) + 20log(frequency in ghz) +17.8 = dbi
That assumes some nominal efficiency?
I'll have to remember that one.. 17.8
It's like the 32.44 dB for free space loss between isotropes 1 km apart
at 1 MHz
(+20log10(dist in km) + 20log10(freq in MHz))
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