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From: | Chesir, Aaron M. |
Subject: | Re: [Discuss-gnuradio] [EXT] Filter error |
Date: | Wed, 5 Jun 2019 14:52:19 +0000 |
Sneha, You did not present the configuration page of the UHD USRP block. In any case, whenever a complaint refers to a frequency not being at or below half the sample rate, it means that the system thinks that you are attempting to either transmit or receive a signal at a frequency that is not below the Nyquist
rate. The Nyquist rate is half the sampling frequency. Huh? It is a fundamental law in digital signal processing that to either transmit or receive a pure tone intact (i.e. not shifting to/from baseband), the sampling rate must meet or exceed twice the frequency of the signal.
From: Discuss-gnuradio <discuss-gnuradio-bounces+address@hidden>
On Behalf Of Sneha vasan Hi everyone, Can anybody guide me on this???.. I am using x310 with sampling rate of 1MHz.
Traceback (most recent call last): File "/home/sneha/My_waveform/past work/transmit.py", line 414, in <module> RuntimeError: firdes check failed: 0 < fa <= sampling_freq / 2 Regards, Sneha |
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