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Re: Help check flow-graph

From: Marcus Müller
Subject: Re: Help check flow-graph
Date: Sat, 7 Nov 2020 14:51:43 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.3.1

Hi Akinyele,

GNU Radio companion has an "screen capture" function that allows you to
directly save **good** images of your flow graph. Also, your operating
system has the same. So, I'll respectfully point out that taking photos
with a camera is a complicated and not overly useful method to
communicate flow graphs. Can't read anything in these.

So, checking your flow graph as far as possible:

* uses legacy GNU Radio 3.7.11, which is an old release, even for that
legacy release series. Update to 3.8 as soon as possible. Not a good
idea to start a new project based on old software. I think this looks
like Ubuntu, so a simple update to Ubuntu 20.04 LTS solves that
* WX GUI: don't use that. Use Qt instead.
* Can't tell you whether your channel sounder is correctly configured
without knowing your channel *and* the required precision of your
channel state estimate.

As Marcus D. Leech already explained in May, you might want to make sure
your DSP/channel understanding is good enough and ask a more precise

Best regards,
Marcus M.

On 07.11.20 13:55, AKINYELE ITAMAKINDE wrote:
> Can someone help to check whether these transmitter and receiver sliding
> correlator channel sounder flowgraph are rightly configured. Thanks

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