Modulation frequency and Modulation Amplitude

[rockyou]

Hi,happy new year 2010.

As my attachment below,there are triangular waveform circuit and sine waveform circuit.The frequency and amplitude can be variable.The modulation frequency(Mf)=9,and the modulation amplitude(Ma)=0.8.



so my question is,how to maintain the Modulation Frequency(Mf)=9 since my sine waveform frequency is variable from 1-100Hz?

Modulation index, Ma=Amplitude for sine wave(Am)/Amplitude for triangle(Ac)
Modulation frequency, Mf=Frequency for triangle wave/frequency for sine wave.

 

[rockyou]

no one understand my question ??

 

[FvM]

Nothing in your circuits seems to be related to modulation. So the question is actually completely unclear.

 

[rockyou]

lock the Mf while changing the fundamental frequency.

 

[angadaria]

as we know there are many benefits of the modulation and one them is long distance transmission. however i don't seems to get the exact idea how it is executed? does E=hf, f-frequency..play the role here? please help