I'm doing a project on the arduino with simple 433MHz antenna modules. And I was wondering if someone could offer clarifications on how receivers work.
I read that high gain receivers can pick up a very narrow beam of radio power and thus, can transfer data at high rates. Given that this signal is tightly focused to the transmitting end.
And a low gain receiver can pick up a much wider beam of radio power.
My question is the following. When they say "narrower beam" does that represent the amplitude of the signal or the number of different waves that are being transmitted? OR does it refer to the number of DIFFERENT frequencies it can pick up? Sorry, if my question is confusing. Happy to clarify any part of it.