[Discuss-gnuradio] RFX-400 RF sensitivity

[Jonas Hodel]

Hi,

We are using the RFX-400 board (without housing) with an appropriate 
aerial connected to TX/RX. Using various examples (usrp_fft.py, 
usrp_wfm_rcv.py and usrp_nbfm_rcv.py) we attempted to receive a signal 
over-air, generated by a handhold portable radio unit. Unfortunately We 
were unable to receive our signal.  We then connected a signal generator 
directly to TX/RX and experimentally determined that the RFX-400 has an 
RF sensitivity of approximatively -105 dBm. Is this consistent with 
other peoples findings? Is it possible that the high speed digital 
signaling on the USRP motherboard is significantly reducing the 
sensitivity of the daughter-board?

Thanks,

Jonas

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