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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