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Today's Topics:
1. query regarding rx_samples_to_file script (Chomal, Sunil)
----------------------------------------------------------------------
Message: 1
Date: Thu, 3 Mar 2011 23:12:06 +0530
From: "Chomal, Sunil" <[email protected]>
To: "[email protected]" <[email protected]>
Subject: [USRP-users] query regarding rx_samples_to_file script
Message-ID:
<[email protected]>
Content-Type: text/plain; charset="us-ascii"
Hi,
I am using the script rx_samples_to_file for capturing the data through USRP
N210
I have some basic doubt regarding this script. It will be nice if some one can
explain them
The options:
1) rate -> corresponds to the final decimated data (through cic and hbf) used
to log to file ? Are there example scripts to individually control the
decimation through this stages.
2) freq -> the centre freq of the band of interest ? Is the down conversion
direct or heterodyne? If heterodyne how is the IF frequency and the cordic freq
decided? If the down-conversion is direct , are there example scripts available
to control PLL settings and the cordic register settings?
3) gain -> this corresponds to which gain stage->I suppose there are two/three
stages of gain boosting in the RF chain
4) How can we control the bandwidth of the filter before ADC .
I am asking these questions, since I am trying to collect some data with the
example scripts in the precompiled binaries for uhd which I am using.
I am still not familiar with the ways to write my own script c/python to
control each of the different knobs in rf and digital down converter chain.
Is such a script already available with some one and is ready to share ...
Regards
Sunil
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