Hello everyone,
Using gnuradio3.8 on Mac.
I'm trying to write a custom python block (not an embedded python block)
with an optional output. I have the "optional" flag set to true in the
YAML file, so GRC doesn't complain when it isn't connected. The block is
working fine when the second port is
Hello,
I'm trying to implement a handshaking scheme using message passing. I'm
starting from the gr-ieee80211 loopback example. My plan was to build a
block that buffers (using std::queue) input messages from the Wifi Mac
block on one message port, and then when it receives a message on a second
Hello all,
I'm new to gnuradio and SDR so I hope there isn't something obvious I'm
missing. I'm trying to get a packet based system set up. I'm using
gnuradio 3.7 and UHD 3.14 that I cross compiled and loaded onto two E312s.
I'm trying to use the uhd_packet_tx and uhd_packet_rx examples as a st
meron
On Tue, Jun 23, 2020 at 12:03 PM Marcus D Leech
wrote:
> What sample rate ranges have you tried?
>
> Sent from my iPhone
>
> On Jun 23, 2020, at 12:57 PM, Cameron Matson wrote:
>
>
> Hello all,
>
> I'm new to gnuradio and SDR so I hope there isn't so
smitting data from one to the
other. For example I've used the (deprecated I know) Packet
Encoder/Decoder block to send a file from one to the other. But nothing
since I started using the Packet TX/RX hier blocks.
Cameron
On Tue, Jun 23, 2020, 2:14 PM Marcus D. Leech
wrote:
> On 06
ta by
playing with the tx and rx gain, but I can't get the phase to lock.
What are some of the knobs I can turn to help the Packet Rx block detect
the signal given the phase offset?
Thanks,
Cameron
On Wed, Jun 24, 2020 at 8:53 AM Cameron Matson wrote:
> Marcus,
> Thanks for that in
. If I then close the GUI tab the
flowgraph doesn't actually finish until I hit the 'Kill' button in GRC.
Only after that the terminal will print ">>>Done (return code -15)" I
can't find anything on what that code might mean. Does anyone have any
idea?
Than
ere could be a /0 error.
>
> On Thu, Jul 2, 2020 at 4:04 PM Cameron Matson
> wrote:
>
>> Hi all,
>>
>> An update: I've noticed that when the flowgraph hangs it's usually
>> because the correlation estimator block is outputting a relatively larger
>>
rr_est. I did not take the time to set up
> and debug, though. Maybe you could verify that zeros are hitting that
> block, and that bypassing the block stops the crash. The flowgraph won't
> work right, but it's good info for a bug report if that's what's happening.
&
Hi everyone,
This might be more of a general digital communication question, so forgive
me if this is inappropriate for this list, but I'm hoping you can provide
some insight w.r.t the implementation.
I'm using the architecture from the packet_tx/rx examples (
https://www.gnuradio.org/doc/doxygen
Forgot to reply to the list.
-- Forwarded message -
From: Cameron Matson
Date: Mon, Aug 3, 2020 at 10:55 AM
Subject: Re: errors in packet payload with n310s
To: Michael Carosino
Mike,
Thanks for taking the time to look at those examples. Your comments make a
lot of sense
Hi all,
Can someone help me understand what's going on with any of the ZMQ Message
Sink blocks? The block takes a timeout parameter which is assigned to
d_timeout, but ultimately it looks like the zmq.LINGER option (which I
believe is how long zmq will block before dropping the frame) is always s
queue messages to be sent. See man socket(7).
>>
>> On Mon, Aug 10, 2020 at 7:00 PM Cameron Matson
>> wrote:
>>
>>> Hi all,
>>>
>>> Can someone help me understand what's going on with any of the ZMQ
>>> Message Sink blocks? The
think what I have is good
enough for now.
Thanks for your help,
Cameron
On Tue, Aug 11, 2020 at 5:32 AM Jeff Long wrote:
> Not that I can see. What effect are you looking for, though?
>
> On Mon, Aug 10, 2020 at 11:08 PM Cameron Matson
> wrote:
>
>> Ah, thanks for clearing
Hey everyone,
I've copied both the gnuradio and usrp lists, since I'm not sure if the
question has a software or hardware answer, so I apologize for duplicate
emails.
I am attempting to set up a wireless transceiver using N310s and the packet
tx/rx examples from gnuradio. I combined both the tx
Forgot to reply to the list.
-- Forwarded message -
From: Cameron Matson
Date: Tue, Aug 18, 2020, 2:01 PM
Subject: Re: [USRP-users] N310 self interference with packet comms and
correlation estimator
To: Jeff Long
I'm using one TX/RX port for both.
I'm using the same
between
> TX and RX with timed bursts at sample x and corresponding start of burst
> in RX at x+18us. The behavior you observe seems to be different.
>
> How does your flowgraph look like?
>
> Cheers
> Johannes
>
> On 20.08.20 17:21, Cameron Matson wrote:
> > Hel
Hello all,
I'm trying to use an embedded python block and would like to change the tag
propagation policy to TPP_DONT, but I can't seem to correctly qualify that
enum type. How can I refer to this value?
Thanks,
Cameron
Great! thank you.
Cameron
On Tue, Nov 17, 2020 at 12:25 PM Jeff Long wrote:
> from gnuradio import gr
> print(gr.TPP_CUSTOM)
>
> On Tue, Nov 17, 2020 at 11:06 AM Cameron Matson
> wrote:
>
>> Hello all,
>>
>> I'm trying to use an embedded python
ariant to these.
I'd really like to be able to synchronize the 4 RF chains in time
simultaneously. Is that possible?
Thanks
Cameron Matson
r wrote:
>
> Hi Cameron,
> Yes, this is possible. I'm not too familiar with gnuradio but in the end
> you need to use a "timed start" to the receive streams.
> Rob
>
> On Fri, Nov 20, 2020 at 7:34 AM Cameron Matson via USRP-users <
> usrp-us...@lists.ettus
Hi all,
I'm trying to use the White Rabbit switch to synchronize the acquisition
across multiple N310s receivers. I'm trying to use the instructions on
this Ettus article:
https://kb.ettus.com/Using_Ethernet-Based_Synchronization_on_the_USRP%E2%84%A2_N3xx_Devices
I'm using the USRP sink block i
Hello again,
Can anyone shed some light on this issue? I found a similar reported issue
here that doesn't seemed to have been resolved either:
http://ettus.80997.x6.nabble.com/USRP-users-ERROR-RPC-TDC-Failed-to-reset-td15582.html
Thank you,
Cameron
On Sat, Dec 5, 2020 at 5:28 PM Ca
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