0MHz clock to "external" in your flow-graph.
> The only time "GPSDO" is used is when you have a properly-installed
> internally-mounted, GPSDO unit.
>
>
>
>
>
>
> On 2016-05-03 12:02, khalid.el-darymli wrote:
>
> Thanks Marcus.
>
> OK, I'm c
gt;
>
>
>
>
> On 2016-05-03 10:23, khalid.el-darymli via USRP-users wrote:
>
> Hi,
>
> I'll appreciate any help on the following. According to the link below
> [1], the PPS voltage for N200 should be in the range *[3.3, 5]* V p-p.
> [1] http://files.ettus.com/manual
Hi,
I'll appreciate any help on the following. According to the link below [1],
the PPS voltage for N200 should be in the range *[3.3, 5]* V p-p.
[1] http://files.ettus.com/manual/page_usrp2.html#usrp2_hw_leds
I am getting a PPS signal through fan-outs from an external Firefly-1A
GPSDO. I
Hi,
I have a simple flowgraph comprised of two channels (UHD: USRP Source)
connected to two separate Qt GUI Waterfall sinks.
This works perfectly in Python/GRC. However, I would like to convert this
into C++.
Previously, I did conversions successfully for various other flow-graphs
without GUIs.
Hi list,
FYI, I went through the documentation and I managed to get it to work :)
All what I need to do was to define a layout so that the waterfall widget
can be added to it.
Thanks,
khalid
-- Forwarded message --
From: khalid.el-darymli khalid.el-dary...@mun.ca
Date: Thu, Jul
#acad5d6e62ea885cb77d19f72451581c2
).
Also, 0 is the default.
M
On 22.05.2015 11:26, khalid.el-darymli wrote:
Hi list,
I am doing some (polyphase) decimation with GNURadio in C++. I
constructed my filters, I wrote some wrapper, and my script compiles
perfectly. However, I am a bit unclear about
Hi list,
I am doing some (polyphase) decimation with GNURadio in C++. I constructed
my filters, I wrote some wrapper, and my script compiles perfectly.
However, I am a bit unclear about declare_sample_delay.
Assume that I have the block: pfb_decimator_ccf_0_5. To set the sample
delay for this
Hi,
What is the proper way to set-up the multiplicative constant vector for
multiply_const_vcc?
I tried the code below and although it compiles, upon running the program I
get the following error:
*Segmentation fault (core dumped).*
The code:
std::vectorgr_complex k;
k[0]=0.1;
Hi,
Is it possible to use two separate Tx channels (A:A A:B with two different
center frequencies) for the N200 with the LFTX daughterboard?
I tried to do this on the Rx side and it seems to work just fine. However,
on the Tx side, I am getting the following error message:
line 97, in __init__
resolve with settings.
-Mike
On Tue, Jan 6, 2015 at 12:59 PM, khalid.el-darymli
khalid.el-dary...@mun.ca wrote:
Output power is determined largely by baseband signal magnitude in
that case.
Yes, I understand. And I noticed that for baseband signal with an
amplitude * 1, * the pass-band
/16/2015 02:08 PM, khalid.el-darymli wrote:
Hi All,
Just to update you in case somebody else comes across this problem.
Following Mike's advice, we replaced the LFTX daughterboard with a new one.
We're getting now 1 V p-p. This is around 4 dBm.
Thanks very much for your help.
Best
I see. If you would like to diagnose the problem, we can ship you the
malfunctioned daughterboard?
Thanks,
Khalid
On Fri, Jan 16, 2015 at 4:17 PM, Marcus D. Leech mle...@ripnet.com wrote:
On 01/16/2015 02:42 PM, khalid.el-darymli wrote:
We were using only one Tx channel with the Subdev
Thanks Johnathan for the update.
BTW, with the recent installation, I am also getting the following warning
when running my GRC or the GRC-generated python script,
fft_impl_fftw: /home/ov/.gr_fftw_wisdom: Permission denied
fft_impl_fftw: /home/ov/.gr_fftw_wisdom: Permission denied
fft_impl_fftw:
Hi Marcus, Hi Sylvain,
Thank you for your response. I continue to get these U
even on a PC with really high specs.
Please find below my answers to your questions.
Do you use timed_commands?
Yes, I do. In the python script, I simply use get_time_now() to query
the times of
Hi,
What is the maximum output power from the LFTX daughterboard when used with
the USRP N200?
According to this datasheet [1], the N200 with the WBX daughterbaord
provide an output power of 15 dBm. However, when using the LFTX
daughterboard, I am getting a much less output power.
[1]
for the problem, but I figured I'd share
this info since what you're seeing might be a hardware issue rather than
something you can resolve with settings.
-Mike
On Tue, Jan 6, 2015 at 12:59 PM, khalid.el-darymli
khalid.el-dary...@mun.ca wrote:
Output power is determined largely by baseband signal
getting -28.13 dBm, does that mean I have some issue
with my LFTX daughterboard?
Khalid
Output power is determined largely by baseband signal magnitude in
that case.
Message: 2
Date: Tue, 6 Jan 2015 10:13:45 -0330
From: khalid.el-darymli khalid.el-dary...@mun.ca
To: Discuss
LFTX daughterboard?
Khalid
Output power is determined largely by baseband signal magnitude in
that case.
Message: 2
Date: Tue, 6 Jan 2015 10:13:45 -0330
From: khalid.el-darymli khalid.el-dary...@mun.ca
To: Discuss-gnuradio@gnu.org discuss-gnuradio@gnu.org
Subject: [Discuss
that?
Since I am only getting -28.13 dBm, does that mean I have some issue with
my LFTX daughterboard?
Khalid
Message: 2
Date: Tue, 6 Jan 2015 10:13:45 -0330
From: khalid.el-darymli khalid.el-dary...@mun.ca
To: Discuss-gnuradio@gnu.org discuss-gnuradio@gnu.org
Subject: [Discuss-gnuradio
not sure why?
Thanks in advance for your help.
Best regards,
Khalid
On Mon, Jan 5, 2015 at 12:11 PM, Tom Rondeau t...@trondeau.com wrote:
On Wed, Dec 31, 2014 at 11:17 AM, khalid.el-darymli
khalid.el-dary...@mun.ca wrote:
Hi,
We recently bought a new machine with like 4 GHz processor, 16
Hi,
In the terminal and while using a powerful PC (please see the attachment),
I am occasionally getting capital U's and L's when running GNU Radio with
one Tx and 4 Rx channels (Here is a sample of what I am getting:
ULLLUULLLULLLU).
Hi,
We recently bought a new PC with some powerful specs. GNU Radio was built
from the source and it seems to be installed fine. However, when I try to
use the virtual sink and source blocks in my flow graph, I am getting the
following error:
Traceback (most recent call last):
File
Hi,
We recently bought a new machine with like 4 GHz processor, 16 GB of RAM.
For the graphic card, we use the Radeon R7 250 1000 MHz GDDR5.
Latest version of Ubuntu (14.04 LTS) was installed along with GNU Radio
built from the source. Everything seems to be installed just fine. However,
when
*To:* khalid.el-darymli
*Cc:* usrp-us...@lists.ettus.com; Discuss-gnuradio@gnu.org
*Subject:* Re: [USRP-users] How to correct for the drift in an (FMCW) Rx
signal?
On 12/02/2014 10:06 AM, khalid.el-darymli wrote:
Hi Marcus,
Is there a temperature sensor on-board the N200 unit? If not, does
Hi Marcus,
Is there a temperature sensor on-board the N200 unit? If not, does it
support installing any such sensor?
Thanks.
Best regards,
Khalid
On Fri, Nov 28, 2014 at 5:44 PM, Marcus D. Leech mle...@ripnet.com wrote:
On 11/28/2014 03:41 PM, khalid.el-darymli wrote:
Back to my
Hi,
Given a set of synced *(i.e., using external GPS REF/PPS)*, time-commanded
and calibrated *(i.e., through compensating for the phase/mag offset
between digital Tx chirp prior to transmission and ADC'ed Rx signals) *N200
devices with LFTX/LFRX daughterboards, that work with coherent LFMCW
Hi,
In GRC, I need to switch back and forth (in real time) between two
subroutines based on some conditional 'IF' statement. For example, 'after'
some preset lapse of time. Is it possible to do that?
Please note that I need the conditional switching to take place in
real-time while the USRP is
Hi,
I would like to downsample a signal from *390,625* Hz to *125 *Hz. *What is
the best way to do this in GNURadio? *
Please find below some issues I am having with this.
First, I used the Low Pass Filter block, in GNURadio, I set my Decimation
to 3125, my Cutoff Freq to 125/2. But I am not
: Martin Braun martin.br...@ettus.com
To: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Issues with syncing two USRPs!
Message-ID: 539857a0.8020...@ettus.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 10.06.2014 22:09, khalid.el-darymli wrote:
I am a new user
: [Discuss-gnuradio] Issues with syncing two USRPs!
Message-ID: 539857a0.8020...@ettus.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 10.06.2014 22:09, khalid.el-darymli wrote:
I am a new user of USRP/GNU Radio. I am experimenting with a system
comprised of one transmitter
Hi,
I am a new user of USRP/GNU Radio. I am experimenting with a system
comprised of one transmitter and multiple receivers. For now, I have two
USRP N200. On the first USRP, I got one LFTX and one LFRX daughter boards.
On the other, I got one LFRX daughter board.
In my application, it is
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