Re: [Discuss-gnuradio] Sample receive time in benchmark

[Tom Rondeau]

On Wed, Sep 18, 2013 at 11:32 PM, Harry Zhang  wrote:
> Hi,
> My last question
> (http://lists.gnu.org/archive/html/discuss-gnuradio/2013-09/msg00196.html)
> seems no answer.But I get another question.
> I wanna know the actual receive time of a sample. If I get the rx
> tag(sample count 100), I can calculate the any sample's receive time.
> For example,sample 1600's receive time: (1600-100)*sample_rate.
> Is it correct?

Yes, as long as you are using the right sample rate.

> In my last question, the sender transmit data every 3 second and the
> uhd_fft shows it's true.But the above formula give the result about 1
> second.
> I think the sample_rate is wrong. I'm using benchmark_rx(gmsk) in
> narrowband and the UHD shows the sample_rate is 200ksample/s.
> Sample_rate wrong or my formula,which is wrong?
> Any suggestion is appreciated.

Make sure you are using the sample rate and not the symbol rate. Each
symbol is transmitted using some number of samples per symbol. I'm
sure you already know that, but just to make sure as that's a likely
cause of confusion when setting things up.

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Re: [Discuss-gnuradio] Gnuradio-Companion Documentation.

[Tom Rondeau]

On Wed, Sep 18, 2013 at 3:48 PM, M Dammer  wrote:
> May I then suggest to enable the docs in the pybombs recipe by default
> as well ?

You may suggest.

Sorry for being glib. I also think it's a good idea to enable the
documentation by default. If Tim agrees and there wasn't a technical
reason why it was turned off in the first place, I think we can change
it.

-- 
Tom
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> On 18/09/13 20:22, Tom Rondeau wrote:
>> On Wed, Sep 18, 2013 at 3:13 PM, Kevin  wrote:
>>> Hello,
>>>
>>> I built Gnuradio using
>>>
>>> $ wget http://www.sbrac.org/files/build-gnuradio && chmod a+x
>>> ./build-gnuradio && ./build-gnuradio
>>>
>>> Which means I don't need to worry about this?
>>>
>>> ./configure --enable-doxygen
>>> make
>>> sudo make install
>> Yeah, Kevin, that information is old (pre cmake). You probably already
>> have the documentation installed (look for
>> /usr/local/share/doc/gnuradio-3.X/, which could also just be under
>> /usr, wherever build-gnuradio sets the prefix to).
>>
>> Building the Doxygen manual is enabled by default as long as you have
>> doxygen installed on your system. You can also get access to the
>> documentation for any version (and the weekly builds) here:
>>
>> http://gnuradio.org/redmine/projects/gnuradio/wiki/Old-docs

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[Discuss-gnuradio] USRP Clipping?

[Isdren Gineer]

I am using N210 USRP's with WBX daughtercards connected with a loopback kit
implementing a 8-PSK waveform. When I start transmitting, I get a clean
constellation. After a short time however (~5 sec) it appears that the
receiver temporarily loses phase lock. The eight point constellation
degrades such that many points appear in a circle with the same radius as
the points. The FFT of the signal shows that the noise floor temporarily
rises. It's as if the amplifier begins to clip or some other non-linear
process is occurring. After such a 'burst' the constellation appears clean
again until another burst occurs. Has anybody else observed this behavior?
Any ideas to what could be the underlying issue?

I am using an multiplier to set the signal amplitude to 0.3 and have the
gains of the USRP's set to around 7dB. If I use a higher amplitude or
greater gains, performance degrades quickly. Are there any rules of thumb
for these settings? Why does the performance degrade with increased values?
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Re: [Discuss-gnuradio] Gnuradio-Companion Documentation.

[Tim]

Docs can take a long time to build, so when doing multiple builds a day
during testing you really don't want to have this turned on.   Likewise
if you are building on slow machine or an older machine without
sufficient doxygen.   But obviously they are valuable for users doing
their primary build who want to use the docs.

I'm thinking it might make sense to just prompt the user when pybombs
sets up its environment and asks for things like the prefix directory -
for it to also ask the user whether they want to build documentation in
general for all the recipes they will be building.   

The main issues with this are,
1. there are not currently recipes for doxygen and it's dependencies -
those would need to be written and would pull in a bunch of latex, perl,
ghostscript, etc --
2. the dependencies for gnuradio need to change based on
enabling/disabling this feature - we don't have a good mechanism yet in
pybombs for turning deps on or off based on recipe "options", but we
could add something like this fairly easily

At the end of the day we do have a choice now between trying to keep
build configurations fairly static and simple (defined only by their
recipe set and guaranteed for repeatability - which is great for
performing repeatable testing, versioning, and packaging) or allowing it
to become a monolithic thing that has lots of different user prompted
states and options.   It's not clear that we can't achieve both - but we
would sacrifice a bit of conciseness and recipe simplicity to get there

-Tim


On 09/19/2013 09:59 AM, Tom Rondeau wrote:
> On Wed, Sep 18, 2013 at 3:48 PM, M Dammer  wrote:
>> May I then suggest to enable the docs in the pybombs recipe by default
>> as well ?
> You may suggest.
>
> Sorry for being glib. I also think it's a good idea to enable the
> documentation by default. If Tim agrees and there wasn't a technical
> reason why it was turned off in the first place, I think we can change
> it.
>

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[Discuss-gnuradio] USRP1 gain

[Nemanja Savic]

Hi ll guys,

I am using for my application usrp1 and wbx board. From the documentation I
got that maximum amplification value of 20 db, but in my flowgraph I am
able to specify without problems more gain for usrp source block. If I put
>20 db I really see changes in noise level, which means that something
really happens. Can somebody say what happens for >20db gains, and why
there is no warning or error when i tru o do that?

Thanks and best,

-- 
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Re: [Discuss-gnuradio] USRP1 gain

[Marcus D. Leech]

The WBX has 31.5dB gain control in the RX path. 


--
Principal Investigator
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Astronomy Consortium
http://www.sbrac.org


On Sep 19, 2013, at 8:21 AM, Nemanja Savic  wrote:

> Ok, but as far as I have seen it is fixed and the only adjustable gain should 
> be at PGA in front of the adc. Am i right?
> 
> 
> On Thu, Sep 19, 2013 at 5:10 PM, Marcus D. Leech  wrote:
> On 09/19/2013 11:03 AM, Nemanja Savic wrote:
>> Hi ll guys,
>> 
>> I am using for my application usrp1 and wbx board. From the documentation I 
>> got that maximum amplification value of 20 db, but in my flowgraph I am able 
>> to specify without problems more gain for usrp source block. If I put >20 db 
>> I really see changes in noise level, which means that something really 
>> happens. Can somebody say what happens for >20db gains, and why there is no 
>> warning or error when i tru o do that?
>> 
>> Thanks and best,
>> 
>> -- 
>> Nemanja Savić
>> 
>> 
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> The WBX has 31.5dB of gain range.
> 
> 
> 
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> 
> 
> 
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Re: [Discuss-gnuradio] Gnuradio-Companion Documentation.

[M Dammer]

I just had the experience of how much the documentation build process
can slow down the build in general. So I think a flag that can be
set/unset during the pybombs configuration / reconfiguration process is
a good idea. And it would make it easier for new users who a: most
likely want documentation and b: do not want to edit recipes etc.

Mark

On 19/09/13 15:45, Tim wrote:
>
> I'm thinking it might make sense to just prompt the user when pybombs
> sets up its environment and asks for things like the prefix directory
> - for it to also ask the user whether they want to build documentation
> in general for all the recipes they will be building.   



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Re: [Discuss-gnuradio] USRP1 gain

[Marcus D. Leech]

On 09/19/2013 11:03 AM, Nemanja Savic wrote:

Hi ll guys,

I am using for my application usrp1 and wbx board. From the 
documentation I got that maximum amplification value of 20 db, but in 
my flowgraph I am able to specify without problems more gain for usrp 
source block. If I put >20 db I really see changes in noise level, 
which means that something really happens. Can somebody say what 
happens for >20db gains, and why there is no warning or error when i 
tru o do that?


Thanks and best,

--
Nemanja Savic'


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The WBX has 31.5dB of gain range.


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Re: [Discuss-gnuradio] USRP1 gain

[Nemanja Savic]

Ok, but as far as I have seen it is fixed and the only adjustable gain
should be at PGA in front of the adc. Am i right?


On Thu, Sep 19, 2013 at 5:10 PM, Marcus D. Leech  wrote:

>  On 09/19/2013 11:03 AM, Nemanja Savic wrote:
>
>  Hi ll guys,
>
> I am using for my application usrp1 and wbx board. From the documentation
> I got that maximum amplification value of 20 db, but in my flowgraph I am
> able to specify without problems more gain for usrp source block. If I put
> >20 db I really see changes in noise level, which means that something
> really happens. Can somebody say what happens for >20db gains, and why
> there is no warning or error when i tru o do that?
>
>  Thanks and best,
>
> --
> Nemanja Savić
>
>
> ___
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>
>  The WBX has 31.5dB of gain range.
>
>
>
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>
>


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Re: [Discuss-gnuradio] USRP Clipping?

[Marcus D. Leech]

On 09/19/2013 10:45 AM, Isdren Gineer wrote:
I am using N210 USRP's with WBX daughtercards connected with a 
loopback kit implementing a 8-PSK waveform. When I start transmitting, 
I get a clean constellation. After a short time however (~5 sec) it 
appears that the receiver temporarily loses phase lock. The eight 
point constellation degrades such that many points appear in a circle 
with the same radius as the points. The FFT of the signal shows that 
the noise floor temporarily rises. It's as if the amplifier begins to 
clip or some other non-linear process is occurring. After such a 
'burst' the constellation appears clean again until another burst 
occurs. Has anybody else observed this behavior? Any ideas to what 
could be the underlying issue?


I am using an multiplier to set the signal amplitude to 0.3 and have 
the gains of the USRP's set to around 7dB. If I use a higher amplitude 
or greater gains, performance degrades quickly. Are there any rules of 
thumb for these settings? Why does the performance degrade with 
increased values?



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You're either getting ADC clipping, or your receiver is entering a 
non-linear operating region where harmonic distortion starts to happen.



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Re: [Discuss-gnuradio] USRP Clipping?

[Ian Buckley]

Can you describe for us what the "loopback kit" comprises? Theres hopefully 
significant attenuation in the signal path.

On Sep 19, 2013, at 7:53 AM, "Marcus D. Leech"  wrote:

> On 09/19/2013 10:45 AM, Isdren Gineer wrote:
>> I am using N210 USRP's with WBX daughtercards connected with a loopback kit 
>> implementing a 8-PSK waveform. When I start transmitting, I get a clean 
>> constellation. After a short time however (~5 sec) it appears that the 
>> receiver temporarily loses phase lock. The eight point constellation 
>> degrades such that many points appear in a circle with the same radius as 
>> the points. The FFT of the signal shows that the noise floor temporarily 
>> rises. It's as if the amplifier begins to clip or some other non-linear 
>> process is occurring. After such a 'burst' the constellation appears clean 
>> again until another burst occurs. Has anybody else observed this behavior? 
>> Any ideas to what could be the underlying issue?
>> 
>> I am using an multiplier to set the signal amplitude to 0.3 and have the 
>> gains of the USRP's set to around 7dB. If I use a higher amplitude or 
>> greater gains, performance degrades quickly. Are there any rules of thumb 
>> for these settings? Why does the performance degrade with increased values?
>> 
>> 
>> ___
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> You're either getting ADC clipping, or your receiver is entering a non-linear 
> operating region where harmonic distortion starts to happen.
> 
> 
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[Discuss-gnuradio] Developer's Call today at 1 Eastern

[Tom Rondeau]

Hi everyone,

September's developer's call starts in just over 30 minutes.

Remember, to avoid confusion, do not start your own hangout. We will
initiate the public hangout, you will be able to join it by going to
the GNU Radio community page in G+.

Once the hangout is live, Phil or I will post the YouTube link on the
list. This should make it really easy to follow the call for all of
those who just want to listen in.

-- 
Tom
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Re: [Discuss-gnuradio] USRP Clipping?

[Isdren Gineer]

The loopback  kit is a 30dB
attenuator and an SMA cable sold by Ettus Research.


On Thu, Sep 19, 2013 at 8:40 AM, Ian Buckley  wrote:

> Can you describe for us what the "loopback kit" comprises? Theres
> hopefully significant attenuation in the signal path.
>
> On Sep 19, 2013, at 7:53 AM, "Marcus D. Leech"  wrote:
>
>  On 09/19/2013 10:45 AM, Isdren Gineer wrote:
>
>  I am using N210 USRP's with WBX daughtercards connected with a loopback
> kit implementing a 8-PSK waveform. When I start transmitting, I get a clean
> constellation. After a short time however (~5 sec) it appears that the
> receiver temporarily loses phase lock. The eight point constellation
> degrades such that many points appear in a circle with the same radius as
> the points. The FFT of the signal shows that the noise floor temporarily
> rises. It's as if the amplifier begins to clip or some other non-linear
> process is occurring. After such a 'burst' the constellation appears clean
> again until another burst occurs. Has anybody else observed this behavior?
> Any ideas to what could be the underlying issue?
>
>  I am using an multiplier to set the signal amplitude to 0.3 and have the
> gains of the USRP's set to around 7dB. If I use a higher amplitude or
> greater gains, performance degrades quickly. Are there any rules of thumb
> for these settings? Why does the performance degrade with increased values?
>
>
> ___
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>
>  You're either getting ADC clipping, or your receiver is entering a
> non-linear operating region where harmonic distortion starts to happen.
>
>
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Re: [Discuss-gnuradio] USRP Clipping?

[Ian Buckley]

OK, good, I'd never noticed that on the price list!
So 30db is a good value to protect WBX from physical damage in a loopback 
configuration. It does however leave you with a potentially very high signal 
level at the RX and so it makes sense that your setup appears to be operating 
at the edge of linearity, despite the modest configured gains. My first guess, 
assuming that your TX is working as you believe is that your setup is subject 
to some additional environmental strong and intermittent RFI, though I concede 
in a cabled loopback setup that theory is harder to support. I've seen very 
similar FFT results when working weak signals without enough out of band 
filtering. Are you working near a RADAR? Laptop with WiFI right next to the 
USRP? Does a further reduction in gains solve your problem?
-Ian


On Sep 19, 2013, at 9:00 AM, Isdren Gineer  
wrote:

> The loopback kit is a 30dB attenuator and an SMA cable sold by Ettus Research.
> 
> 
> On Thu, Sep 19, 2013 at 8:40 AM, Ian Buckley  wrote:
> Can you describe for us what the "loopback kit" comprises? Theres hopefully 
> significant attenuation in the signal path.
> 
> On Sep 19, 2013, at 7:53 AM, "Marcus D. Leech"  wrote:
> 
>> On 09/19/2013 10:45 AM, Isdren Gineer wrote:
>>> I am using N210 USRP's with WBX daughtercards connected with a loopback kit 
>>> implementing a 8-PSK waveform. When I start transmitting, I get a clean 
>>> constellation. After a short time however (~5 sec) it appears that the 
>>> receiver temporarily loses phase lock. The eight point constellation 
>>> degrades such that many points appear in a circle with the same radius as 
>>> the points. The FFT of the signal shows that the noise floor temporarily 
>>> rises. It's as if the amplifier begins to clip or some other non-linear 
>>> process is occurring. After such a 'burst' the constellation appears clean 
>>> again until another burst occurs. Has anybody else observed this behavior? 
>>> Any ideas to what could be the underlying issue?
>>> 
>>> I am using an multiplier to set the signal amplitude to 0.3 and have the 
>>> gains of the USRP's set to around 7dB. If I use a higher amplitude or 
>>> greater gains, performance degrades quickly. Are there any rules of thumb 
>>> for these settings? Why does the performance degrade with increased values?
>>> 
>>> 
>>> ___
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>> You're either getting ADC clipping, or your receiver is entering a 
>> non-linear operating region where harmonic distortion starts to happen.
>> 
>> 
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> 
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[Discuss-gnuradio] September Developer Call Video

[Philip Balister]

https://www.youtube.com/watch?v=9Pr3-bsaaU0

Philip

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Re: [Discuss-gnuradio] Runtime issue with gr_modtool block

[Tommy Tracy II]

Just for future reference,

Problem:
If moving a module from one version of gnu radio to another, the shared object 
(DLL) links may break.

Solution:
Use the gr_modtool script on the destination machine to create a new module and 
add the blocks in your old module. Copy over the source, and everything should 
work.


Tommy James Tracy II
Ph.D Student
High Performance Low Power Lab
University of Virginia
Phone: 913-775-2241

On Sep 16, 2013, at 12:00 AM, Tommy Tracy II  wrote:

> Dear List,
> 
>   I recently moved a custom block to a new virtual machine, built and 
> compiled, and tried to import. I get the following error:
> 
> >>> import router
> Traceback (most recent call last):
>   File "", line 1, in 
>   File 
> "/home/tjt7a/Src/target/lib/python2.7/dist-packages/router/__init__.py", line 
> 45, in 
> from router_swig import *
>   File 
> "/home/tjt7a/Src/target/lib/python2.7/dist-packages/router/router_swig.py", 
> line 26, in 
> _router_swig = swig_import_helper()
>   File 
> "/home/tjt7a/Src/target/lib/python2.7/dist-packages/router/router_swig.py", 
> line 22, in swig_import_helper
> _mod = imp.load_module('_router_swig', fp, pathname, description)
> ImportError: /home/tjt7a/Src/target/lib/libgnuradio-router.so: undefined 
> symbol: _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES5_
> 
> Investigating this line, I get:
> 
> tjt7a@ubuntu:~/Src$ c++filt 
> _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES5_
> gr::msg_accepter::post(boost::intrusive_ptr, 
> boost::intrusive_ptr)
> 
> I'm running the new pybombs version:
> 
> tjt7a@ubuntu:~/Src$ gnuradio-config-info -v
> 3.7.2git-0-gd19aa281
> 
> Has anyone seen this?
> 
> Sincerely,
> Tommy James Tracy II
> Ph.D Student
> High Performance Low Power Lab
> University of Virginia
> Phone: 913-775-2241
> 

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Re: [Discuss-gnuradio] Working example of rx_ofdm and rx_ofdm with Gnuradio Companion

[Aditya Dhananjay]

T
hanks!



On Thu, Sep 19, 2013 at 1:13 AM, Martin Braun (CEL) wrote:

> Hi Aditya,
>
> there's a ticket on this (see our issue tracker) and I'm on it.
>
> tx_ofdm.grc should work, though.
>
> MB
>
>
> On Wed, Sep 18, 2013 at 01:13:11PM -0400, Aditya Dhananjay wrote:
> > Hello All,
> >
> >
> > Reviving an older discussion (from what I gather from the list
> archives). Does
> > anyone have a working example of rx_ofdm.grc and tx_ofdm.grc?
> >
> >
> > Or in the minimum, a working example of rx_ofdm.grc that plays with
> > benchmark_tx, and/or a working example of tx_ofdm.grc that plays with
> > benchmark_rx?
> >
> >
> > Thank you very much!
> >
> >
> > Best,
> >
> > Aditya
> >
>
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>
>
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>
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>
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>
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[Discuss-gnuradio] Reg. AGC3 in gnuradio

[vamshi krishna dodla]

Can someone give me detailed information about the new agc (agc3) in
gnuradio?.Also is that agc a log mag. loop which is normally used in the
modern receivers?If there is a block diagram of the new agc3 then it would
also help. Thanks ahead.

-- 
Thanks & Regards
Vamshi
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[Discuss-gnuradio] Fwd: Gnuradio disabled components

[Mauricio Olivera]

Hi all,

I have recently installed GNU radio 3.7.1 in Manjaro (Distro based in Arch).
While building some components where disable.
I am interested in having some of them like gnuradio-companion and
gr-wxgui, how can I enable them

Many thanks,

##
-- # Gnuradio disabled components
-- ##
--   * doxygen
--   * sphinx
--   * gr-ctrlport
--   * gnuradio-companion
--   * gr-comedi
--   * gr-qtgui
--   * gr-wxgui
-- 
-- Using install prefix: /usr
-- Building for version: 3.7.1 / 3.7.1
-- Configuring done
-- Generating done
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Re: [Discuss-gnuradio] Fwd: Gnuradio disabled components

[Aditya Dhananjay]

Could you please post the entire output from cmake?

Thanks


On Thu, Sep 19, 2013 at 7:26 PM, Mauricio Olivera  wrote:

> Hi all,
>
> I have recently installed GNU radio 3.7.1 in Manjaro (Distro based in
> Arch).
> While building some components where disable.
> I am interested in having some of them like gnuradio-companion and
> gr-wxgui, how can I enable them
>
> Many thanks,
>
> ##
> -- # Gnuradio disabled components
> -- ##
> --   * doxygen
> --   * sphinx
> --   * gr-ctrlport
> --   * gnuradio-companion
> --   * gr-comedi
> --   * gr-qtgui
> --   * gr-wxgui
> --
> -- Using install prefix: /usr
> -- Building for version: 3.7.1 / 3.7.1
> -- Configuring done
> -- Generating done
>
>
>
>
> ___
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> Discuss-gnuradio@gnu.org
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>
>
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[Discuss-gnuradio] [discuss-gnuradio] Git checkout error in build_gnuradio script

[Alex Zhang]

Hello,

I think the script build_gnuradio has an error when GNURadio 3.7 is in the
repository.
As the GNURadio 3.7 has no directory gnuradio-core. The below code will
always report error and exit the building.

git clone --progress http://gnuradio.org/git/gnuradio.git >>$LOGDEV 2>&1
if [ ! -d gnuradio/gnuradio-core -a ! -d 
gnuradio/gnuradio-runtime ]
then
my_echo "Could not find 
gnuradio/gnuradio-{core,runtime} after GIT checkout"
my_echo GIT checkout of Gnu Radio failed!
doexit FETCH-GR-FAIL
fi

It should be corrected, if I am not wrong.

-- 

Alex,
*Dreams can come true – just believe.*
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Re: [Discuss-gnuradio] Fwd: Gnuradio disabled components

[Mauricio Olivera]

Here is the complete installation process...

https://www.dropbox.com/s/md5v8pr0iyllm8f/gnuradio_inst

Many thanks.


2013/9/19 Aditya Dhananjay 

> Could you please post the entire output from cmake?
>
> Thanks
>
>
> On Thu, Sep 19, 2013 at 7:26 PM, Mauricio Olivera <
> m.olivera.go...@gmail.com> wrote:
>
>> Hi all,
>>
>> I have recently installed GNU radio 3.7.1 in Manjaro (Distro based in
>> Arch).
>> While building some components where disable.
>> I am interested in having some of them like gnuradio-companion and
>> gr-wxgui, how can I enable them
>>
>> Many thanks,
>>
>> ##
>> -- # Gnuradio disabled components
>> -- ##
>> --   * doxygen
>> --   * sphinx
>> --   * gr-ctrlport
>> --   * gnuradio-companion
>> --   * gr-comedi
>> --   * gr-qtgui
>> --   * gr-wxgui
>> --
>> -- Using install prefix: /usr
>> -- Building for version: 3.7.1 / 3.7.1
>> -- Configuring done
>> -- Generating done
>>
>>
>>
>>
>> ___
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>> Discuss-gnuradio@gnu.org
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
>>
>
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Re: [Discuss-gnuradio] Fwd: Gnuradio disabled components

[Aditya Dhananjay]

Have you installed all the dependencies? Which Linux are you running?

http://gnuradio.org/redmine/projects/gnuradio/wiki/UbuntuInstall#Install-Dependencies



On Thu, Sep 19, 2013 at 8:02 PM, Mauricio Olivera  wrote:

> Here is the complete installation process...
>
> https://www.dropbox.com/s/md5v8pr0iyllm8f/gnuradio_inst
>
> Many thanks.
>
>
> 2013/9/19 Aditya Dhananjay 
>
>> Could you please post the entire output from cmake?
>>
>>  Thanks
>>
>>
>> On Thu, Sep 19, 2013 at 7:26 PM, Mauricio Olivera <
>> m.olivera.go...@gmail.com> wrote:
>>
>>> Hi all,
>>>
>>> I have recently installed GNU radio 3.7.1 in Manjaro (Distro based in
>>> Arch).
>>> While building some components where disable.
>>> I am interested in having some of them like gnuradio-companion and
>>> gr-wxgui, how can I enable them
>>>
>>> Many thanks,
>>>
>>> ##
>>> -- # Gnuradio disabled components
>>> -- ##
>>> --   * doxygen
>>> --   * sphinx
>>> --   * gr-ctrlport
>>> --   * gnuradio-companion
>>> --   * gr-comedi
>>> --   * gr-qtgui
>>> --   * gr-wxgui
>>> --
>>> -- Using install prefix: /usr
>>> -- Building for version: 3.7.1 / 3.7.1
>>> -- Configuring done
>>> -- Generating done
>>>
>>>
>>>
>>>
>>> ___
>>> Discuss-gnuradio mailing list
>>> Discuss-gnuradio@gnu.org
>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>
>>>
>>
>
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Re: [Discuss-gnuradio] Fwd: Gnuradio disabled components

[Aditya Dhananjay]

Oops, sorry, I missed those details in your previous email.


On Thu, Sep 19, 2013 at 8:10 PM, Aditya Dhananjay  wrote:

> Have you installed all the dependencies? Which Linux are you running?
>
>
> http://gnuradio.org/redmine/projects/gnuradio/wiki/UbuntuInstall#Install-Dependencies
>
>
>
> On Thu, Sep 19, 2013 at 8:02 PM, Mauricio Olivera <
> m.olivera.go...@gmail.com> wrote:
>
>> Here is the complete installation process...
>>
>> https://www.dropbox.com/s/md5v8pr0iyllm8f/gnuradio_inst
>>
>> Many thanks.
>>
>>
>> 2013/9/19 Aditya Dhananjay 
>>
>>> Could you please post the entire output from cmake?
>>>
>>>  Thanks
>>>
>>>
>>> On Thu, Sep 19, 2013 at 7:26 PM, Mauricio Olivera <
>>> m.olivera.go...@gmail.com> wrote:
>>>
 Hi all,

 I have recently installed GNU radio 3.7.1 in Manjaro (Distro based in
 Arch).
 While building some components where disable.
 I am interested in having some of them like gnuradio-companion and
 gr-wxgui, how can I enable them

 Many thanks,

 ##
 -- # Gnuradio disabled components
 -- ##
 --   * doxygen
 --   * sphinx
 --   * gr-ctrlport
 --   * gnuradio-companion
 --   * gr-comedi
 --   * gr-qtgui
 --   * gr-wxgui
 --
 -- Using install prefix: /usr
 -- Building for version: 3.7.1 / 3.7.1
 -- Configuring done
 -- Generating done




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>>>
>>
>
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Re: [Discuss-gnuradio] Sample receive time in benchmark

[Harry Zhang]

于 2013/9/19 21:56, Tom Rondeau 写道:

On Wed, Sep 18, 2013 at 11:32 PM, Harry Zhang  wrote:

Hi,
My last question
(http://lists.gnu.org/archive/html/discuss-gnuradio/2013-09/msg00196.html)
seems no answer.But I get another question.
I wanna know the actual receive time of a sample. If I get the rx
tag(sample count 100), I can calculate the any sample's receive time.
For example,sample 1600's receive time: (1600-100)*sample_rate.
Is it correct?

Yes, as long as you are using the right sample rate.


In my last question, the sender transmit data every 3 second and the
uhd_fft shows it's true.But the above formula give the result about 1
second.
I think the sample_rate is wrong. I'm using benchmark_rx(gmsk) in
narrowband and the UHD shows the sample_rate is 200ksample/s.
Sample_rate wrong or my formula,which is wrong?
Any suggestion is appreciated.

Make sure you are using the sample rate and not the symbol rate. Each
symbol is transmitted using some number of samples per symbol. I'm
sure you already know that, but just to make sure as that's a likely
cause of confusion when setting things up.

If I'm using the symbol_rate, the actual sample_rate must be more that 
that I'm using now. Thus the formula gives result even less than 1 
second, which is still not coming to 3 second.


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Re: [Discuss-gnuradio] Fwd: Gnuradio disabled components

[Mauricio Olivera]

Something to do with this

Configuring gnuradio-companion support...
--   Dependency ENABLE_GNURADIO_RUNTIME = ON
--   Dependency ENABLE_PYTHON = ON
--   Dependency PYTHON_MIN_VER_FOUND = TRUE
--   Dependency CHEETAH_FOUND = TRUE
--   Dependency LXML_FOUND = FALSE
--   Dependency PYGTK_FOUND = TRUE
--   Dependency NUMPY_FOUND = TRUE
--   Disabling gnuradio-companion support.
--   Override with -DENABLE_GRC=ON/OFF


2013/9/19 Aditya Dhananjay 

> Oops, sorry, I missed those details in your previous email.
>
>
> On Thu, Sep 19, 2013 at 8:10 PM, Aditya Dhananjay wrote:
>
>> Have you installed all the dependencies? Which Linux are you running?
>>
>>
>> http://gnuradio.org/redmine/projects/gnuradio/wiki/UbuntuInstall#Install-Dependencies
>>
>>
>>
>> On Thu, Sep 19, 2013 at 8:02 PM, Mauricio Olivera <
>> m.olivera.go...@gmail.com> wrote:
>>
>>> Here is the complete installation process...
>>>
>>> https://www.dropbox.com/s/md5v8pr0iyllm8f/gnuradio_inst
>>>
>>> Many thanks.
>>>
>>>
>>> 2013/9/19 Aditya Dhananjay 
>>>
 Could you please post the entire output from cmake?

  Thanks


 On Thu, Sep 19, 2013 at 7:26 PM, Mauricio Olivera <
 m.olivera.go...@gmail.com> wrote:

> Hi all,
>
> I have recently installed GNU radio 3.7.1 in Manjaro (Distro based in
> Arch).
> While building some components where disable.
> I am interested in having some of them like gnuradio-companion and
> gr-wxgui, how can I enable them
>
> Many thanks,
>
> ##
> -- # Gnuradio disabled components
> -- ##
> --   * doxygen
> --   * sphinx
> --   * gr-ctrlport
> --   * gnuradio-companion
> --   * gr-comedi
> --   * gr-qtgui
> --   * gr-wxgui
> --
> -- Using install prefix: /usr
> -- Building for version: 3.7.1 / 3.7.1
> -- Configuring done
> -- Generating done
>
>
>
>
> ___
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>
>

>>>
>>
>
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