AM. The amplitude of the carrier is changed by the modulating signal.
FM. The frequency of the carrier is changed by the modulating signal.
A mixer won't do that.
A multiplexer can take a piece of some signals and give an output with the pieces in sequence.
A mixer won't do that.
The modulator chip combines the carrier frequency (which is variable)
with the un-modulated audio input signal.
Inside the modulator chip there is a modulation Envelope how do i adjust the envelope shape?
On the output of the modulator chip is the "modulation signal" ( which is the carrier frequency combined with the un-modulated signal). The "moduation envelope" i want to vary do i can change the "modulation envelope" how can i do this please?
There is a "AM modulation envelope"
There is a "FM modulation envelope"
I want to change the AM modulation envelope and the FM modulation envelope how can i do this please?
If i don't use a modulator how does the carrier signal get combined with the un-modulated signal? what happens when not using a modulator?
If u "bypass" the modulator the carrier signal will not comine or superimpose?
What are sidebands?
Either of the two bands of frequencies, one just above and one just below a carrier frequency, that result from modulation of a carrier wave.
So are sidebands from the carrier frequency or the non-modulation frequency?
What are sidebands?
Either of the two bands of frequencies, one just above and one just below a carrier frequency, that result from modulation of a carrier wave.
"variable depth of modulation control is just a volume control of the amount of modulation"
a Volume pot on the un-modulated signal "before" the modulator chip?
(or does the modulator chip have a "trim pot" to adjust the depth of modulation inside the modulators chip?
How do i have a variable 0-100% "depth of modulation" ?
How do i adjust the Envelope of the modulation to change the Envelope slopes and curves of the modulators modulation waveform?
When i put my probe down on the "output" of a modulator chip i see alot of vertical lines like its slicing the waveform into pieces what are theses vertical lines called please?
The envelope of modulation is like a bubble around the waveform how does the modulator chip make this envelope
Look how the envelope of modulation changes the bubble shape: **broken link removed**
**broken link removed**
Whats the E symbol and chip called? is the E symbol another modulator?
The modulating signal is the audio that modulates the RF carrier. An ordinary volume control adjusts the amount of audio that feeds the modulator, therefore changes the depth of modulation.
Nobody makes a "modulation chip". You make your own modulator circuit.
Turn the modulation volume control down and the modulation index is zero. Turn it up and guess how much the modulation index will be.
The amount and type of modulation changes the envelope of the modulated carrier. With AM modulation the envelope changes its amplitude by the modulating audio. With FM modulation the envelope doesn't change.
If you want to change the AM envelope slopes and curves of the modulator's modulation waveform then feed it audio that does it. A sinewave makes a mirrored sinewave envelope. A triangle wave makes a mirrored triangle wave (looks like diamonds) envelope. Guess what the envelope looks like with a squarewave audio signal.
What is unbalanced? The top part and the bottom part?
When i put my probe down on the "output" of a modulator chip i see alot of vertical lines like its slicing the waveform into pieces what are theses vertical lines called please?
It isn't E, it is the Greek letter Omega. It adds the two modulated carriers together. It is an RF summing circuit, not a chip.
Learn about quadrature modulation and balanced modulators.