Uploaded by Muhannad El Menawy

Sheet3

Sheet 3
AM&FM broadcasting
1-calculate the ratio between Cmax/Cmin of the tuned circuit in
the local oscillator in the AM receiver, range (550-1600)KHZ
Using the given relation flo=fc+fif.
2- repeat (1) using flo=fc-fif and comment on the results.
3- repeat (1) but for the local oscillator of the FM receiver.
4- If f1=2000kHZ, f2=750KHZ. what is image frequency for high
side tuning and low side tuning?
5- If f1=2000kHZ, f2=1500KHZ. what is image frequency for high
side tuning and low side tuning?