this post was submitted on 13 Mar 2025
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Science Memes

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that about 1/1000 of your phones RF power output, and the distance is 384400km (sh.itjust.works)
submitted 1 week ago by [email protected] to c/[email protected]
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[–] [email protected] 8 points 1 week ago (1 children)

*directional antenna

[–] [email protected] 4 points 1 week ago (2 children)

Show me a non-directional antenna.

[–] [email protected] 2 points 1 week ago (1 children)

Omni-directional antennas?

[–] [email protected] 5 points 1 week ago* (last edited 1 week ago)

Omnidirectional antennas attempt to radiate equally horizontally. An isotropic antenna radiates equally in all directions but is only theoretical. All antennas have some gain.

That being said, there are some antennas that attempt to minimize that gain and be as non-directional as possible while other antennas attempt to maximize that gain and become as directional as possible.

[–] [email protected] 1 points 1 week ago (1 children)
[–] [email protected] 3 points 1 week ago (1 children)

Just because you call it non-directional doesn't mean it is. They all have gain compared to a theoretical isotropic antenna.

[–] [email protected] 1 points 20 hours ago

And how is that relevant? Everybody knows they mean low gain antennas