Hello Evariste:
If 2 channels are sufficient, you can probably get away with USRP B210s (which
is expensive but superior) or LimeSDRs. You can also use a MIMO cable to pair
up two USRP N210s together.
If you need more channels, things get a bit expensive. You will need to
consider USRP N3xx
Our lab is using USRP N310's with an external frequency synth ($500), a TI
dev board splitting chip ($200?) and an external 10 MHz selenium clock
($2k). The set up is very very good but extremely expensive as well.
After paying for RF cables and a host server, we are roughly getting 1
channel per
Hi Kevin - Maybe use the tagged_stream or a PDU or vectorized data? There are
various ways to do what you want that will guarantee N samples that you could
then trigger a function call on. The better one to use really depends on what
you actually want to do once you have your N samples. - MLD
O
Hi dear community members!
I want to run experiments using MIMO and/or beamforming techniques with
open source. However, I am getting stuck with hardware. Traditionally, I
used USRPs N210 for experiments. I have only two.
Is there any cheap hardware that can support MIMO & beamforming
application
Hello all,
I'm working on a project that requires that I synchronously issue a command
to the sink I wrote after processing every "N" samples. In my reading, I
came to the understanding that a good way to do this would be to use tagged
streams or PDUs with message passing. I've read through the Gu
I just noticed something else:
The USRP sample rate is set to 500kHz, not 20MHz. So you are only
looking at 2.5 % of the target spectrum! It is also possible, that
there are just no signals in that particular section.
Best,
Sebastian Müller
gse...@gmail.com
PGP ID DC2AA3EE
Am 13. Juni 2019 um 20
Hi Daniel,
from what you tell us, I conclude this is not an issue with
gr-inspector but rather with generally receiving signals.
If you use the QT GUI Sink for instance instead, you will see the same
(empty) spectrum. I would recommend to try and get better reception,
until you can distinguish sig
thank you, that definitely helps
On Tue, Jun 11, 2019 at 12:46 PM Müller, Marcus (CEL)
wrote:
> Hi Daniel,
>
> no, that's not right.
>
> In your program, whatever that is, if it wants to use GNU Radio:
>
> You set up a bunch of blocks – to even instantiate them, their
> constructors must return
Thank you.
I tried, and it worked
Cheers
On Wed, Jun 12, 2019 at 11:48 AM Müller, Marcus (CEL)
wrote:
> Oh, or try
>
> from pmt.pmt_to_python import pmt_to_python as p2p
>
> vector = p2p(message)
> for elem in vector:
> do_stuff_with_elem
>
>
> On Wed, 2019-06-12 at 10:56 -0500, Daniel Andr
Just FYI, the pulseaudio_pa_sink block is part of:
https://github.com/bitglue/gr-pulseaudio
Ron W6RZ
On 6/12/19 03:59, ba...@dcsmail.net wrote:
3) When I loaded 'examples/rtty_demod.grc', there was a missing block
'pulseaudio_pa_sink'. Where is it, and what does it do? Since it
didn't seem di
Hi Kyeong and all the others who helped me on this issue!
Ron Economos identified the basic problem: it depends on how gnu radio
was loaded as to whether to use '/usr/local' or '/usr'. So I tried
'cmake -DCMAKE_INSTALL_PREFIX=/usr ../' and it works :)
Also, per your suggestion, I rebuilt witho
On Thu, 13 Jun 2019 at 09:22:21 +0200, Sneha vasan wrote:
> Yes I am implementing the OFDM receiver.
>
> So the idea is to do the serial to parallel conversion of the received
> signal at USRP source, So my question was, in order to do so can I use
> vector to streams block?? . As per the above sug
On Wed, 2019-06-12 at 16:26 -0400, Barry Duggan wrote:
> Hi Marcus,
>
> I wasn't careful in getting the filenames right, but the intent and the
> execution were there :)
>
> If you look at bitglue/gr-radioteletype/lib/baudot_encode_bb_impl.h, the
> tables have a '-1' to indicate characters whic
Thank you so much for the response.
Yes I am implementing the OFDM receiver.
So the idea is to do the serial to parallel conversion of the received
signal at USRP source, So my question was, in order to do so can I use
vector to streams block?? . As per the above suggestion the block does not
rea
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