hi guys.. i have came across another fm transmitter that works almost the same as this.. however, it requires 2x CS9018(RF transistor).. unfortunately, i cant find or substitute this transistor in Multisim 10... may i know which is the best replacement?

and if i would like to simulate the circuit, the oscilloscope would be on the antenna, am i right?

thank you

 

goooooooood

 

How would you mod this to send packets of data,
of course using a microcontroller on both ends

Data in 8 bits are sent as high and low signals, i'm thinking apply the signal across c3?

thanks

 

can any one tell me how to know the frequency output can i use oscilloscope?
if not which device should i use !!!!!!!!!
help me

 

Hello,

There are a couple of possibilities to get the frequency.
One you already mentioned , the osciloscope.
An other is a spectrum analizer, that can also see if there are harmonics transmitted.
Again an other posibility is a frequency counter.
And the cheapest is a simple radio to see where you can recieve the signal.

Bertus