Understanding Circuit Operation

[amirul]

can anyone explain how this circuit work.thanks

 

[berkeman]

can anyone explain how this circuit work.thanks

Welcome to the PF.

What have you found so far? What is your experience with transistor circuits so far? It looks like the only tricky part is the modulation, oh, and the part where actually using this transmitter would violate FCC rules. Quiz Question -- Why?

 

[berkeman]

violate FCC rules.

Or I guess it would be the CSIA for you in Malaysia...

 

[amirul]

i need to find the circuit working flow because of it's my Electronic Communication System project this semester.so for knowing the circuit flow it will be easier for me to explain to the lecturer. :)

 

[berkeman]

Ah, it's for schoolwork, thanks. In that case I'll move this to the schoolwork forums for you now.

Also, you are required to show your efforts on schoolwork questions before we can offer much tutorial help. Please tell us what you know about Common Emitter NPN transistor amplifier circuits. How are they biased? And what type of oscillator circuit is the output NPN transistor forming? How is any Frequency Modulation (FM) being accomplished in this circuit?

 

[amirul]

no it's not school work.it's just explanation about this project because i choose this project and i need to do some research about the circuit

 

[berkeman]

Yes, it is considered schoolwork here at the PF. I think your lecturer would agree that your project and your report to him/her is schoolwork.

In any case, that's in the PF rules. Now please show some effort on this project of yours, and do your best to explain each part of the circuit to us. We can then offer some help to clarify your explanations. Thank you.