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RFSA FSK Demodulation: Output bits stream received without any emission

Hi All,

I'm trying to receive an ouput bit stream, by demodulating an RF signal.

The signal is a fsk modulated 272 bits frame.

The emission frequency is 433.92 MHz. The flow rate transmission is 227.27 us.

The frequency deviation is between 30KHz and 60 KHz.

The retreive the bits emmited, i'm using: MT RFSA FSK Demod With Power in Band Measurement.

The FSK IQ Spectrum is correct. Not the output bit Stream.

The main big problem is that i'm receiving an output bit stream even with no emission.

Below, three pics for more information.

Any help will be great.

Thanks in advance P.S: I'm using PXI 5600/5620

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I forgot to say that i'm using an antenna with the card.
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Any help, please ?

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Dupplicate.
Gerardo O.
RF SW Engineering R&D
National Instruments
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