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Re: [Discuss-gnuradio] Using USRP and Osmo sources
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From: |
Marcus Müller |
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Subject: |
Re: [Discuss-gnuradio] Using USRP and Osmo sources |
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Date: |
Fri, 13 Mar 2015 16:18:43 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
Maybe you're seeing a classical two-clock problem: The USRP's and the
the HackRF's have independent oscillators, and so the sampling rates are
not really exactly related to each other -- for example, your USRP could
be asked to sample 10MS/s, giving you 10.000003MS/s, whereas the HackRF
is configured to transmit 10MS/s, and consumes 9.999990MS/s. After a few
seconds, samples start piling up.
On 03/13/2015 03:08 PM, Luke Berndt wrote:
> Has anyone used a USRP and Osmosdr source together on the same graph? I am
> trying. To run a HackRF and an Ettus b200 together and I am getting a lot of
> 'D's. I have tried putting both at a low sampling rate but it doesn't seem to
> change things. I am running it on an i7 so there should be enough CPU. Could
> it be a USB issue? Could the drivers be interfering?
>
> Sent from my iPhone
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