Hello,
I'm using the USRP2 board with the daughterboard XCVR2450. As far as I know,
the output power of the XCVR2450 is 100mW (20dBm), but I don't understand
the meaning of the TxGain and RxGain factor when I use for example
tunnel.py. I have been able to identify that the Tx Gain varies between 0
Hi all,
i have been working on the simple sine transmission with 2 antennas on
usrp but im having a little problem with that. My program doesnt give
any error but when i check the output with the help of usrp_fft.py on
the other system, i can see that one antenna is transmitting and the
other is n
Good morning,
I am working in digital communications specifically with dpsk modulation in
gnu radio.
I made a very simple dpsk modulation and demodulation testing flow graph .
this is the flow graph that I made for the transmitting part:
https://picasaweb.google.com/101968292957887487468/DQPSKMO
I've been working on a flow-graph for meteor-burst detection on VHF
(more specifically using the NAVSPASUR "space fence" as a signal
source).
Part of the flow-graph involves probes that run at several-Hz rate and
decide whether to start recording signal-power data, based on
triggering crite
Hello Group;
I am trying to use an external USB Audio DAC.
According to the documentation in the audio source block, if I leave the
device name
blank, the block will use the default alsa audio device.
My question is, how do I find out what the name of the USB device is ??
Typing lsus
I have the same audio device. If you use the command line alsamixer,
you can get card information from the F2 menu. /proc/asound/devices
contains information for each card. I use hw:3,0 (my sequence of sound
cards as I have two PCI sound cards and two USB cards) for both capture
and playback
-- Forwarded message --
Date: Fri, 20 Apr 2012 09:44:34 -0700
From: Nickolas Fotopoulos
To: Vladimir Dergachev
Subject: Re: [Discuss-gnuradio] GRC programming problem--anyone with any bright
ideas? (fwd)
Vladimir,
I might suggest to Marcus that he try a ramdisk cache such
Hello,
I'm receiving a pthread_setchedparam error when running grc projects under
Ubuntu 11.04. After reading a post from Almohanad Fayez in an archive of
this mailing list, I decided to try adding kernel.sched_rt_runtime_us = -1
to my /etc/sysctl.conf file. This did change the thread priority whi
On 04/20/2012 02:02 PM, labarowski wrote:
>
> Hello,
> I'm receiving a pthread_setchedparam error when running grc projects under
> Ubuntu 11.04. After reading a post from Almohanad Fayez in an archive of
> this mailing list, I decided to try adding kernel.sched_rt_runtime_us = -1
> to my /etc/s
On 04/20/2012 03:45 PM, Vladimir Dergachev wrote:
-- Forwarded message --
Date: Fri, 20 Apr 2012 09:44:34 -0700
From: Nickolas Fotopoulos
To: Vladimir Dergachev
Subject: Re: [Discuss-gnuradio] GRC programming problem--anyone with
any bright
ideas? (fwd)
Vladimir,
I mig
Exactly what I was looking for Josh. Grc gave a prompt to check the
documentation along with the error but I was unable to find this. Thanks
and I'm sorry to bother you with something that should have been
apparent with a little searching - I just wasn't looking in the right
places.
On 4/20/2
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