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Re: [Discuss-gnuradio] USRP2 benchmark_rx.py, benchmark_tx.py, transmit_

From: Smith L.
Subject: Re: [Discuss-gnuradio] USRP2 benchmark_rx.py, benchmark_tx.py, transmit_path_usrp2.py, receive_path_usrp2.py, pick_bitrate.py
Date: Mon, 20 Apr 2009 13:31:11 -0700 (PDT)


I tried 100e6 as converter rates for USRP2. But it is still not working.
USRP1 and USRP2 receive and transmit at 500kbps which is the default bit
rate defined in pick_bitrate. So how could they have bit rate
incompatibility. The samples per symbol is also 2 for both of them. I am
still wondering that as USRP1 has decim of 64 and interp of 128 and USRP2
has both decim and interp of 100 would not they affect the communication.
This time I tried to communicate between USRP1 and Usrp2 using cable. I am
still not able to figure out what is the problem.

Thanks for any help in advance.

Eric Blossom wrote:
> On Fri, Apr 17, 2009 at 02:24:44PM -0700, Smith L. wrote:
>> Hi,
>> I already tried to set the value of the converter_rate in pick_tx_bitrate
>> and Pick_rx_bitrate according to the ADC and DAC specifications of 
>> address@hidden
>> I
>> set it to 200e6 in pick_tx_bitrate and in pick_rx_bitrate. But even that
>> did
>> not worked. I am confused with how to modify the pick_bitrate.py file for
>> usrp2. I am not able to determine the different parameters that I need to
>> provide for usrp2. If anyone has already worked on it then please help me
>> to
>> modify the pick_bitrate file for usrp2. Also if any other changes are
>> required in other python files.
>> Thanks in advance.
>> Smith
> The converter rates should both be 100e6.
> Eric
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