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Please tell me what does the AM tuner do ?

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Re: AM TUner

Hi,
It tunes the LC circuit to resonate at the desired frequency of the carrier of the AM waves.
Regards,
Laktronics
 

Re: AM TUner

in solid state radio engineering book by krauss.bostian.raab,in chapter9 ,there is a complicated am tuner.can any body explain it?
 

Re: AM TUner

a_tek7 said:
in solid state radio engineering book by krauss.bostian.raab,in chapter9 ,there is a complicated am tuner.can any body explain it?
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can u give the circuit -please
 

AM TUner

May be you just change the frequence of modulation!
 

Re: AM TUner

The AM tuner may contain:
- RF frontend BPF + RF amplifier;
- mixer to convert to the IF frequency;
- frequency oscillator/ synthesizer to feed the mixer.
If this is a block, it may look like an FM, TV tuner a shielded box with input connector, lots of control pins and an IF output.

But sometimes the tuner may be a complete receiver delivering audio signal.
 

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