On 16/11/12 07:15 PM, Tom Hendrick wrote:
> Does anyone have some ideas on what else I can try right now? I'm out
> of ideas on what is causing the underruns at the start of running the
> script that reads the WAV file and outputs to the USRP LFTX.
>
> Thank you, -Tom
>
Most systems like this have
drick ; "discuss-gnuradio@gnu.org"
Sent: Wednesday, November 14, 2012 8:52 AM
Subject: Re: [Discuss-gnuradio] UHD Underrun with Wav File Source and USRP Sink
As an additional check, I reduced the signal amplitude further in the WAV file
to make sure there is no truncation. I still s
u.org"
Sent: Wednesday, November 14, 2012 8:22 AM
Subject: Re: [Discuss-gnuradio] UHD Underrun with Wav File Source and USRP Sink
Hello Josh,
The wav file has float values in the -1 to 1 range. In the old GRC script I
had used a constant multiplier of (2**15-1) to get the correct amplitude.
In
-gnuradio] UHD Underrun with Wav File Source and USRP Sink
On 11/12/2012 02:10 PM, Tom Hendrick wrote:
>
>
> Hello Josh,
>
> Thanks for the suggestion. Yes I had zero padded the file with about 1
> second of zero signal prior to the signal I want to transmit. I had stil
ude of the baseband samples; but are they scaled small
enough to avoid truncation?
-josh
> Thanks, -Tom
>
>
>
> From: Josh Blum
> To: discuss-gnuradio@gnu.org
> Sent: Monday, November 12, 2012 1:03 PM
> Subject: Re: [Discuss-gnuradio]
?
Thanks, -Tom
From: Josh Blum
To: discuss-gnuradio@gnu.org
Sent: Monday, November 12, 2012 1:03 PM
Subject: Re: [Discuss-gnuradio] UHD Underrun with Wav File Source and USRP Sink
On 11/11/2012 01:21 PM, Tom Hendrick wrote:
> Hello all,
>
> I a
On 11/11/2012 01:21 PM, Tom Hendrick wrote:
> Hello all,
>
> I am using a USRP1 and an LFTX daughtercard and Ubuntu 12.04.
>
> I am having an issue with a simple GRC script I made which has three
> blocks. A WAV file source connects to a resampler block and then to
> the UHD USRP sink.
>
> Whe
Hello all,
I am using a USRP1 and an LFTX daughtercard and Ubuntu 12.04.
I am having an issue with a simple GRC script I made which has three blocks.
A WAV file source connects to a resampler block and then to the UHD USRP sink.
When I run the script I get a single underun right at the start of
