AM TUner

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a_tek7

Joined: 09 Feb 2006
Posts: 376
Helped: 12
Location: Bandar Abbas

14 Jan 2008 22:21 AM TUner

What does a am tuner do ?

laktronics

Joined: 06 Jan 2007
Posts: 945
Helped: 156

15 Jan 2008 9:45 Re: AM TUner

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

a_tek7

Joined: 09 Feb 2006
Posts: 376
Helped: 12
Location: Bandar Abbas

15 Jan 2008 10:36 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?

sundarmeenakshi

Joined: 12 Dec 2006
Posts: 322
Helped: 19

15 Jan 2008 16:58 Re: AM TUner

a_tek7 wrote:

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

can u give the circuit -please

a_tek7

Joined: 09 Feb 2006
Posts: 376
Helped: 12
Location: Bandar Abbas

15 Jan 2008 21:01 Re: AM TUner

Sorry.i can't Crying or Very sad

well-read

Joined: 13 Jan 2008
Posts: 39
Helped: 1

16 Jan 2008 20:56 AM TUner

May be you just change the frequence of modulation!

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Eugen_E

Joined: 29 Nov 2004
Posts: 358
Helped: 31

16 Jan 2008 21:41 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.