shaneshane1
New Member
just wondering if anyone knows of any good tutorials on this subject or if anyone could give me some help trying to understand this topic a little better?
Basically what i am trying to find out is, how is "data" transfered across a frequency?
does data travel across an existing frequency or does the frequency only exist when there is data to be sent?
Example: I set up a IR transmitter @ 38KHz and sent that signal to a receiver with a LED on the output!(the LED just stays lit because the signal is so fast) would i be right in saying that there was no "data" sent to the receiver, just a 38KHz signal?
And when i use a TV remote @ 38KHz the LED flashes on and off very fast! would this indicate that "data" is been sent?
I know that "data" is 1'ns(high) and 0's(low) but isn't the frequency also 1'ns and 0's, how can you send "data" along a frequency if they both have 1'ns and 0's?
sorry there is so many questions its just i cant work it all out without some sort of human interaction!
Basically what i am trying to find out is, how is "data" transfered across a frequency?
does data travel across an existing frequency or does the frequency only exist when there is data to be sent?
Example: I set up a IR transmitter @ 38KHz and sent that signal to a receiver with a LED on the output!(the LED just stays lit because the signal is so fast) would i be right in saying that there was no "data" sent to the receiver, just a 38KHz signal?
And when i use a TV remote @ 38KHz the LED flashes on and off very fast! would this indicate that "data" is been sent?
I know that "data" is 1'ns(high) and 0's(low) but isn't the frequency also 1'ns and 0's, how can you send "data" along a frequency if they both have 1'ns and 0's?
sorry there is so many questions its just i cant work it all out without some sort of human interaction!