On 09/24/2015 06:37 PM, Simon Olvhammar wrote:
Yes, in my current Python Gnuradio application I have implemented
Dicke-switching by syncing it with external signals that indicate S/R
as well as transition state of RF. I have not seen any issues with
overlapping fft:s. The switch frequency is 1
On 09/24/2015 06:37 PM, Simon Olvhammar wrote:
Yes, in my current Python Gnuradio application I have implemented
Dicke-switching by syncing it with external signals that indicate S/R
as well as transition state of RF. I have not seen any issues with
overlapping fft:s. The switch frequency is 1
Julian and Martin,
Typically 2 U's appear then a stream of O's. Ya, I don't have any sort of
correlation block on the receiver side so that is definitely a problem. Next
week I'll work on implementing a correlation block with a barker code preamble.
Do you have any suggestions for quick testing
Yes, in my current Python Gnuradio application I have implemented
Dicke-switching by syncing it with external signals that indicate S/R as
well as transition state of RF. I have not seen any issues with
overlapping fft:s. The switch frequency is 1 Hz and the transition state
signal has an inter
Hi all,
I have tried to send packets to the receiver from /digital/narrowband
folder and it has mostly succeeded. The output I was able to get when I
sent the following commands were
Sender: ./benchmark_tx.py -p 4 -M 2 -f 2.43561G --tx-gain=28 -r 25
Receiver: ./benchmark_rx.py -p 4 -f 2.43
Attaching reply as text since outlook.com insists on eating XML and formatting.
--Patrick
> From: mcqui...@sfu.ca
> Date: Thu, 24 Sep 2015 10:35:34 -0700
> To: david.ha...@toshiba-trel.com
> CC: discuss-gnuradio@gnu.org
> Subject: Re: [Discuss-gnuradio] Funct
On 23.09.2015 11:44, Jason Matusiak wrote:
> For some reason I got myself wrapped around the axle with what is going
> on with the host and device format options. For instance, if I look at
> the RFNoC Radio block, it has a host format with the options: complex
> float32, complex int16, and vita w
Retrying in plain text, since browser/outlook ate the XML I had typed:
Hi David,
Making the parameter vary at runtime is simple and just needs some extra XML
and python code.
The parameter should be an argument to the __init__ method (constructor) of
your block and should
have a "" decla
Hi Logan,
The problem is that the USRP does not know where your burst of data starts and
how long it is and therefore it will respond with Us as soon as no new data is
coming in. In order to tell the USRP how long a packet of data is the USRP sink
in GNURadio offers the 'length tag name' proper
Ron's comment is very helpful, here's some more factoids:
On 23.09.2015 13:55, Richard Bell wrote:
> Sorry if these are obvious questions, but this is very not obvious to
> me. As I understand it right now, it's not even a question of copy and
> pasting files over to gr-analog, because that would
On 24.09.2015 08:20, Washbourne, Logan wrote:
> My question is, do I need to treat a burst communication system
> different than a continuous system? My problem is that on each side I am
> getting O's whenever I start the program, I have tried increasing and
> decreasing the sampling rate, and I di
On Thu, Sep 24, 2015 at 3:51 PM, Andrea Montefusco <
andrea.montefu...@gmail.com> wrote:
> On 04/05/2015 07:16 PM, Martin Braun wrote:
>
> There are automatic update cycles. The whole design hinges upon us not
>> having to do any manual
>> intervention.
>>
>> In a nutshell, we fetch all the recipe
Hi David,
Making the parameter vary at runtime is simple and just needs some extra XML
and python code. The parameter should be an argument to the __init__ method
(constructor) of your block and should have a "" declaration in the matching
XML file. Let's say the parameter name is "variable_
On 04/05/2015 07:16 PM, Martin Braun wrote:
There are automatic update cycles. The whole design hinges upon us not having
to do any manual
intervention.
In a nutshell, we fetch all the recipes for OOTs on a regular basis, run our
CGRAN codes against
that, and update the page.
As an OOT maint
Hi David:
I'm a relative newbie myself, but I can say that I had this same issue. I had
a block with a static parameter that I wanted to be able to change dynamically
at runtime.
I looked at the block's source code, and also at a block that had a dynamically
adjustable parameter.
Basically,
hello
i write a grc,i use the virtual sink and virtual source,the grc woked well
when i replace the virtual sin and source with usrp sink and source,there is a
problem occured
the message is:
gr::log :FATAL: repack_bits_bb0 - Missing a required length tag on port 0 at
item #0
thread[thread-per-b
Hello all,
I've been trying to modify the chat app tutorial into a system that can
utilize USRPs and an acknowledgement system. The acknowledgement system
works so far, the RX just sends a pdu back to the TX side saying that it
received the message. I am now trying to implement the USRPs to have a
Since you'd be decimating on the FPGA, your latency would be dominated
by the rate at which you send FFTs to the host. In the scenario
descibed, that would be about 0.01second, plus the inherent group delay
of the filters in the radio, which if you're running at full ADC
bandwidth won't be much.
Hi Nemanja - SIP is used in Qwt and other PyQt related projects. It has
its own internal API, which must be compatible for all Python modules
being loaded (including SIP itself). So, what this error means is that
the Qwt module was built using a given SIP API (6.0 looks like), then
SIP was upgraded
Hi all guys,
i am trying to install gnuradio 3.7.7.1 version og gnuradio on my RHEL6
machine in a local path and to preserve my 3.6.5.1 version. After instaling
many different programs i also screwed my old version. Ok it was not that
bad but filter design tool doesn't work for me. I get the follo
Thanks!
One concern that I have however is how the iir filter will affect delays
in the flow graph. In the current (non RFNoC) application; when I switch
the input RF to another source I would like to to see an almost
instantaneous change in the samples of the file sink. Which I pretty
much do
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