[USRP-users] The receiver ADC goes into saturation

Marcus D. Leech mleech at ripnet.com
Sat Oct 25 10:35:24 EDT 2014

On 10/25/2014 08:28 AM, w xd via USRP-users wrote:
> Hi all:
>         Environment:USRP N210,14bit ADC
>         According the formula:DR(dynamic range):6.02*14=84.28dB.
>         And now two USRP N210 close to each other,while one is used for transmitting and the other is used for receiving.The amplitude of the signal which to be send is 1.The gain in the transmitter I set 31.5dB.And the gain in the receiver I set also 31.5dB.The 31.5dB*2=63<DR(dynamic range).Why the receiver goes in saturation so easily?The signal saturates the ADC and gets clipped.Can someone explain it to me?
>         Thank you.
> Best regards,
> xd
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To use a simple physical world analogy, you're *screaming loudly* into 
your friends ear, and wondering why they have gone temporarily deaf...

Reduce your TX power and/or RX gain.

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