On Mon, Oct 01, 2012 at 05:17:33PM -0400, Tom Rondeau wrote:
> Yes, harris' book is the best to start with. There is another paper
> from him called "Let's Assume the System is Synchronized" that also
> goes over it. I'm not sure if he's published a paper that discusses
> the specifics of the filte
hi tom,
thanks for your response, thats really too bad - I was hoping to get into the
gnuradio software. If I set the QS1R to stream on a particular IP and port, can
I just use a UDP source block?
Or better yet, how difficult is it to write a source block for this radio? Ive
looked through t
On Tue, Oct 2, 2012 at 9:01 AM, Martin Braun (CEL) wrote:
> On Mon, Oct 01, 2012 at 05:17:33PM -0400, Tom Rondeau wrote:
>> Yes, harris' book is the best to start with. There is another paper
>> from him called "Let's Assume the System is Synchronized" that also
>> goes over it. I'm not sure if he
On 02 Oct 2012 09:27, Matthew Biederman wrote:
> hi tom,
>
>
thanks for your response, thats really too bad - I was hoping to get
into the gnuradio software. If I set the QS1R to stream on a particular
IP and port, can I just use a UDP source block?
>
> Or better yet, how
difficult is it to
Hi, I hope someone can help. I have USRP 1 and running Ubuntu 12.04. I have
installed UHD and GNU Radio. How do I install, run and view the radio spectrum
and record for radio astronomy? Many thanks, Frank
__
On 02 Oct 2012 13:29, Frankie Rawlins wrote:
> Hi,
>
> I hope
someone can help. I have USRP 1 and running Ubuntu 12.04. I have
installed UHD and GNU Radio.
> How do I install, run and view the radio
spectrum and record for radio astronomy?
>
> Many thanks,
>
>
Frank
There's an app called
The ADS62P4x does not have internal dither. In many RF systems there
is enough gain that natural noise is strong enough to give enough
dither.
Matt
On Mon, Oct 1, 2012 at 10:14 PM, LD Zhang wrote:
> Dear Group,
>
> I need to clarify a very basic feature of the USRP ADC. The question is:
> Does
Perhaps they were confused in that the script doesn't find the install
package and then fails when trying to build with that support built
in:
-- found jack, version 0.121.2
-- Found jack: /usr/lib/i386-linux-gnu/libjack.so
-- checking for module 'portaudio'
-- package 'portaudio' not found
--
Hello,
I expect my N210 to have a sampling rate up to 100 Msps. Instead I do not
seem to go above 33. MHz. Why? I don't see why the LFRX board should be
a limitation.
Thanks,
LD Zhang
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The N210 samples at a fixed rate of 100Msps. However, the gigabit Ethernet
transport limits the instantaneous bandwidth over the transport to 25Msps
in 16 bit sampling mode, or 50Msps in 8 bit sampling mode.
--n
On Tue, Oct 2, 2012 at 3:47 PM, LD Zhang wrote:
> Hello,
>
> I expect my N210 to ha
Is there a way to get around this limit? I suppose you have to have
on-board memory to hold data temporarily. Unfortunately the N210 isn't like
the E100 which has the memory?
LD
On Tue, Oct 2, 2012 at 3:50 PM, Nick Foster wrote:
> The N210 samples at a fixed rate of 100Msps. However, the gigabi
How fast do you need to sample? How many samples do you need?
--n
On Tue, Oct 2, 2012 at 4:00 PM, LD Zhang wrote:
> Is there a way to get around this limit? I suppose you have to have
> on-board memory to hold data temporarily. Unfortunately the N210 isn't like
> the E100 which has the memory?
I would like to explore the system performance from 10 to 100 Msps at an
interval of 10 MHz. I know that 20 Msps is probably sufficient. But it
would be good to survey the performance at different rates.
Since my interest is not the entire band but multiple signal at discrete
frequencies, one poss
On Tue, Oct 2, 2012 at 4:25 PM, LD Zhang wrote:
> I would like to explore the system performance from 10 to 100 Msps at an
> interval of 10 MHz. I know that 20 Msps is probably sufficient. But it
> would be good to survey the performance at different rates.
>
> Since my interest is not the entire
Matthew,
>> If I set the QS1R to stream on a particular IP and port, can I just use
a UDP source block?
Yes can use UDP source block to stream QS1R samples to gnuradio
-Adeel
On Tue, Oct 2, 2012 at 6:27 PM, Matthew Biederman wrote:
> hi tom,
>
> thanks for your response, thats really too
On Mon, Oct 1, 2012 at 1:27 PM, Fabián Kozynski wrote:
> As sanity check I'm trying a simple flowgraph in GRC with a QAM mod/demod:
>
> Vector Source ==> Throttle ==> QAM Mod ==> QAM Demod ==> Unpacked to Packed
> ==> File Sink
>
> The parameters in the mod/demod are as default. I also have a File
Hi,
I'm modifying the block BLOB_TO_STREAM and I would like to pass a pointer
to that function. The original file (blob_to_stream.cc) is like this:
class blob_to_stream_impl : public blob_to_stream{
public:
blob_to_stream_impl(const size_t item_size):
block(
"blob_to_strea
Hi Nick,
Thanks for your helpful comments. I have followed up on this train of
thought on specifying a frequency for the USRP. I guess the advantage is
one can achieve the same level of over-sampling with lower sampling rate
with this technique when one shifts closer to the frequency of interest.
In order to add extra information,
I know that block() contains a pure virtual function, so that, in the
blob_to_stream program it is used:
_item_size(item_size). Then, _item_size is the object used in
blob_to_stream.
However, I am still wondering if a received a pointer, how can I manipulate
it
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