AVR-Chat

----- Original Message ----- 
From: "David VanHorn" <microbrix@gmail.com>
To: <AVR-Chat@yahoogroups.com>
Sent: Wednesday, July 29, 2009 4:16 PM
Subject: Re: [AVR-Chat] Looking for RF Receiver IC


> On Tue, Jul 28, 2009 at 2:22 PM, Cat C<catalin_cluj@hotmail.com> wrote:
>>
>> I need only about 2KHz bandwidth.
>> But I need to sample about 1 second, so I'm not sure how that would work.
>> Also, how I would bring the sub 1uV level to a level that can be 
>> digitized?
>
> Sounds like you could take the output of a receiver like the IC-R8500
> and feed the audio into an ADC.
> The AVR one might be up to this task, depending on how finely you need
> that sampled.
>
> The usual approach with narrowband receivers is to filter, amplify,
> mix, filter, and amplify (single conversion superhet)

and demodulate. 8-)

Leon