cool
New Member
Dear all expects,
In AM, is it the carrier signal must be with the higher freq? and the lower freq must be the modulation signal??
I used a 555 timer to generate a square wave pulse to modulate an infrared signal. then, which is the carrier?? and which is the modulation signal??
Also, does this modulating signal contain the upper-side freq and lower-side freq?? and what is the envelope of it???
Please help help me!!! :cry:
In AM, is it the carrier signal must be with the higher freq? and the lower freq must be the modulation signal??
I used a 555 timer to generate a square wave pulse to modulate an infrared signal. then, which is the carrier?? and which is the modulation signal??
Also, does this modulating signal contain the upper-side freq and lower-side freq?? and what is the envelope of it???
Please help help me!!! :cry: