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[Discuss-gnuradio] Regarding nbfm_tx , and nbfm_rx

From: Arora_Amit
Subject: [Discuss-gnuradio] Regarding nbfm_tx , and nbfm_rx
Date: Mon, 1 Aug 2005 19:15:12 +0530

Hi All,


We are implementing our algorithms on USRP board, and our flow goes like this :


Transmitter part:


Audio input from PC --à Modulation (not a standard modulation as in USRP examples, we are implementing our own modulation technique specific to our application , and we have developed algorithms for the same too) --àIFFT ----à Towards Transmitter USRP


Receiver Side:


Received signal from USRP Antenna --à Demodulate the signal --à FFT --à Output to PC sound card.


We are modifying the usrp examples program : “nbfm_ptt_quick_and_dirty.py” , and trying to modify the same according to our application .


We are not able to find out what the following function does and do we need to include in our program:

  1. blks.nbfm_tx(fg, self.audio_rate, self.usrp_rate)
  2. blks.nbfm_rx(fg, audio_rate, quad_rate)



Will be helpful , if anybody can put some light on the same.



Thanks and Regards

Amit Arora

Bangalore, India.

E-mail: address@hidden



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