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Re: [Discuss-gnuradio] Cant receive .wav file correctly
From: |
Martin Braun |
Subject: |
Re: [Discuss-gnuradio] Cant receive .wav file correctly |
Date: |
Wed, 10 Feb 2016 15:19:16 -0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 |
Your DPSK demod takes some time before loops are locked etc. I assume
that's what you're seeing. Try bypassing both PSK blocks and see if the
packetizers are working fine.
Cheers,
Martin
On 02/09/2016 06:58 PM, Haaris wrote:
> Hi all,
> Thanks for the reply martin.
> The dpsk mod and demod work alright with the packet encoder and decoder
> that i am currently using.
> This flow graph recovers a text file somewhat alright. One problem is
> that even though i have selected overwrite data in file sink, it still
> appends the recovered data again and again. The second is that every
> time first 412 characters of the data are missing of the start
> paragraph. As repeat is turned on in file source, when the data is
> repeated there are no characters missing and all the data is
> successfully recovered after the first time. e.g.
>
> data = x x x x
> x x x x
> x x x x
>
> recovered data with repeat on = x x (412 characters missing)
> x x x x
>
> x x x x
> x x x x
> x x x x
>
> x x x x
> x x x x
> x x x x ....
>
> So what happens with the wav file sink and source, why does file sink
> and source miss the starting 412 characters everytime when recovering
> data and why does the file sink does'nt overwrite the data?
>
> Thanks in advance
>
>
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