The radio tag has no wiki summary.
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1answer
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Radio antennas that are much shorter than the wavelength
From my limited experience with ham radio when I was a kid, I expect transmitting and receiving antennas to have lengths that are on the same order of magnitude as the wavelength, and in fact I recall ...
2
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1answer
73 views
How does my car acquire satellite signal?
I just got XM radio again after a brief period without it. A customer service rep said that the satellite needs to beam my signal to me in a six minute time window. How exactly does this happen? How ...
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Is the inducing signal weakened to the extent it induces a signal in the receiving antenna?
Silly question ...
An antenna is necessary to receive a transmitted signal from atmosphere, or otherwise. The transmitted signal weakens as it travels through the atmosphere. When the signal ...
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References for Radio Optics?
I'm really intrigued by a bunch of questions like 'what do radio waves look like?' 'how much RF radiation is there in the town I live in?' 'why does RF imaging work?'
But I think I need to do some ...
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Sum and Difference Frequencies - Amplitude Modulation
I understand that while transmitting an envelope through a carrier wave to the receiver, an upper sideband and a lower sideband form adjacent to the carrier wave. The sidebands are apparently an ...
