Changes between Version 37 and Version 38 of Old/Tutorials/k0SDR/Tutorial00


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Timestamp:
Oct 1, 2006, 3:11:27 AM (18 years ago)
Author:
anonymous
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  • Old/Tutorials/k0SDR/Tutorial00

    v37 v38  
    6060    * '-N21000': sample 21000 data points.
    6161    * '-g 10': set the gain to 10.
    62     * 'rx_10k_1.data': set the file name that will store the data samples.
     62    * 'noise.data': set the file name that will store the data samples.
    6363
    6464
     
    6666
    6767[[Image(Documentation/GNURadio:noise.dat.jpeg)]]
     68
     69
     702. '''Transmitter and Receiver at 1MHz''' The transmitter sends out waveform at 1MHz, and the receiver receives at 1MHz as well.
     71   At the Transmitter node1-1:
     72   {{{
     73       ./usrp_siggen_multiple_sine.py -f 1e6 -w 10k -a 1000 -m 1 --sine
     74   }}}
     75    * '-f 1e6': tells the GnuRadio to modulate the baseband waveform to 1MHz.
     76    * '--sine': the format of the waveform that will be sent out is a sine wave.
     77    * '-w 10k': set the original baseband frequency to 10k,
     78    * '-a 1000': set the amplitude to 1000.
     79    * '-m 1': only transmit one sine wave, instead of multiple sine waves.
     80
     81   At the receiver node1-2:
     82   {{{
     83      ./usrp1_rx_cfile.py -f 1e6 -N21000 -g 10 rx_1m.dat
     84   }}}
     85    * '-f 1e6': tells the GnuRadio to listen to the frequency band 1MHz.
     86    * '-N21000': sample 21000 data points.
     87    * '-g 10': set the gain to 10.
     88    * 'rx_1m.data': set the file name that will store the data samples.
     89
     90
     91    Again, using the matlab script [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/plotall.m plotall('noise.dat')], you can get the following figure:
     92
     93[[Image(Documentation/GNURadio:rx_1m.dat.jpeg)]]