Hi Wahhab,
This is a fairly basic issue – the ‘bandwidth’ (if that is
really what you are really meaning) of signals which can be sampled and
correctly reconstituted is related to the sample_rate by Nyquist
https://en.wikipedia.org/wiki/Nyquist_rate
Kind Regards,
John
From: Wahhab Albazrqaoe via USRP-users
Sent: Friday, December 29, 2017 3:04 PM
To: [email protected]
Subject: [USRP-users] Enable aliasing using USRP
Dear All,
I have question about how to create aliasing using USRP.
Basically, I have USRP2 with SBX (with recent installations of GnuRadio and
UHD).
I would like to set the bandwidth of the RF front end to 50 MHz, and use 2MHz
of sampling rate (ADC speed).
I am using the following command:
sudo ./rx_samples_to_file --args addr=192.168.10.2 master_clock_rate=50e6
--freq=2460e6 --bw=50e6 --rate 2e6 --gain=50 --wirefmt sc8 --nsamps 0
Problem: it seems to me that the system (GnuRadio/USRP) observes only 2MHz of
RF front end bandwdith. How do I know this? Ans: I compare such settings with
the following settings:
sudo ./rx_samples_to_file --args addr=192.168.10.2 master_clock_rate=50e6
--freq=2460e6 --bw=50e6 --rate 50e6 --gain=50 --wirefmt sc8 --nsamps 0
The later setting seems to be actual 50 MHz of Rf front end.
Any comments and advices on how to create aliasing using USRP are appreciate.
Best,
Wahhab
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