"Short wavelengths" are radio frequencies, if you wanted to send the data without mixing it with an RF signal now would you propose to do it?maybe short wavelength are good to pass data?
Avdantage of not using a mixer at all.
If we modulate amplify and broadcast the data as it is.
How would you propose to broadcast data using frequency modulation without a carrier signal? What will you modulate?why cant we broadcast data modulated as it is
for example in FM:
we convert our data into frequency mudulated ,Why RF is the wire?
Why modulated data cannot propogate as it is by itself?
I think "efficient" might be misleading, practical seems more to the point. If would be practically impossible to use the baseband frequencies of data to generate RF signals.The advantage over transmitting it as just the baseband signal is that you can get an efficient antenna and therefore greater range.
I do love to do the improbable, things like that, or other crazy things that should work, do do when you try them. I assume that questions here, unless otherwise specified, are practical one.I have transmitted encoded data made by wiggling an microcontroller output pin at 4 kbps, and my antenna, using the broadest of meanings, was a capacitive coupling of 16e-15 F with a distance of 2.5 M. You are right, at that frequency a "real" antenna was out of the question.
You're missing the point. A carrier frequency represents 0 in the EM signal that is the wave-from of RF energy being broadcast. Without the carrier signal, there is no reference.Hello, We use RF carry signal to broadcast modulated data.
What is the advantage to use such carrier frequency?
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by Jake Hertz
by Jake Hertz