Thanks - stupid me.

But you did get me thinking.

See

https://wiki.gnuradio.org/index.php/Packet_Communications#Using_BPSK_with_Hardware_Simulation_(version_3.9)

- if you haven't already taken a  look.

I'm using it to test a new install of 3.10.4 remotely - but I had to replace a couple pdu/stream blocks from 3.10.

Works great!

And it uses zmq for the hardware source and sink - so I don't need to have any hardware connected to the remote machine.

-- Cinaed


On 10/14/22 22:28, Rohith Rajan wrote:
Re: Help For Packet Reception in GNU Radio

Hi Cinaed
hdr simply means header format. I am adding preamble and header to the
payload (data packet ) using
*digital.header_format_default(digital.packet_utils.default_access_code, 0) *

Thank You
Rohith R

On Fri, Oct 14, 2022 at 9:34 PM <discuss-gnuradio-requ...@gnu.org> wrote:

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       1. Re: Help For Packet Reception in GNU Radio (Cinaed Simson)


    ----------------------------------------------------------------------

    Message: 1
    Date: Thu, 13 Oct 2022 21:24:43 -0700
    From: Cinaed Simson <cinaed.sim...@gmail.com>
    To: discuss-gnuradio@gnu.org
    Subject: Re: Help For Packet Reception in GNU Radio
    Message-ID: <f786face-75d6-560b-8866-ee19f5ea2...@gmail.com>
    Content-Type: text/plain; charset=UTF-8; format=flowed

    Hi Rohith - in the Protocol Formatter,  the hdr_format, I'm fairly
    certain the hdr denotes "High Dynamic Range" used in imaging - TV
    images
    for instance.

    In which case, it may easily generate 4 times the data then your
    sentence contains in bits.

    -- Cinaed

    On 10/13/22 02:17, Rohith Rajan wrote:
    > Hello,
    > I am  doing Packet Transmission and Reception using Adalm Pluto
    SDR in
    > GNu radio companion. I am transmitting text file(.txt file with one
    > sentence ) using one adalm pluto and receiving it   using 2nd adalm
    > pluto. But while receiving there is much more noise and I can't
    > properly receive the packet that I transmitted.
    >
    > Here I am attaching the .grc file and the images of the
    > constellation diagrams.
    >
    > Please help me to receive the packet successfully
    >
    > Thank You
    > Rohith R




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