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Re: [Discuss-gnuradio] uhd_two_tone_loopback.grc example (Cindy Zhang)

From: Cindy Zhang
Subject: Re: [Discuss-gnuradio] uhd_two_tone_loopback.grc example (Cindy Zhang)
Date: Thu, 13 Sep 2018 09:49:23 -0400

The device is B200. It says the maximum sampling rate it can deliver is above 60M. Any other thoughts on this problem?

On Thu, Sep 13, 2018 at 3:58 AM Steve Joumessi Demeffo <address@hidden> wrote:

Hi Cindy Zhang,

I think it's your device that can not deliver 50M synchronously to the UHD. If possible up to the performance of your device.

Best regards

Le 2018-09-12 18:00, address@hidden a écrit :
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Today's Topics:

   1. uhd_two_tone_loopback.grc example (Cindy Zhang)


Message: 1
Date: Wed, 12 Sep 2018 11:42:57 -0400
From: Cindy Zhang <address@hidden>
To: address@hidden
Subject: [Discuss-gnuradio] uhd_two_tone_loopback.grc example
Content-Type: text/plain; charset="utf-8"

For this "uhd_two_tone_loopback.grc" example, it runs great at 500k
samling_rate. However, when I increase the sampling rate to 50M, I start to
get printouts on the screen: "UUU...", and it is very hard to stop the
running example. Besides, when it runs at 500K sampling_rate, no printouts
on the screen. Therefore, it is very easy to stop the application at 500K.
I got similar results for other applications written by myself.

What could be the reason that causes the printouts at higher sampling_rate?
Is there a solution for this problem? As I understand, 50M sampling_rate
should be acceptable for my device.

Thanks in advance.
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