Re: [Discuss-gnuradio] gr-usrp library

[Ges]

Hi Eric,
Thanks a lot. The gian for tx was different from the rx side. 

I having a little trouble understanding the flow of the new gmsk2 implementation. 
Can you give me a quick overview of it? 

I am confused with where its getting a character to convert and send out. Is there a way to just read a character stream from a file and pass it to the gmsk2_mod to convert and send out? Will the simple_framer work with this implementation? 

I am looking a simple implementation where I can read a character stream from a file and send it to across the SMA cable and write it to a file on the receiver side.  If I have a simple implementation working as proof of concept in Click, then i can try a TDMA mac on top of it. 

Thanks
Gesly



Eric Blossom <address@hidden> wrote:
>  On Sun, Apr 09, 2006 at
>  08:56:38PM -0700, Ges wrote:
> > Thanks Eric. 
> > 
>
> > I looked up the max gain. It is 20dB. So I set it to 20 dB on the tx
> > and rx side. Also I was using payload size of 1024; so I tried
> > different sizes 512, 256 and 64. The size of the file was 1087
> > bytes.  But it doesnt seem to have any difference. I even tried a
> > different frequency - 100MHz. Looks like I will have try the gmsk2
> > blocks and see what I am getting. Unless I am going wrong with
> > something else!
>
> Gesly,
>
> The max gain is different for the Tx and the Rx sides, and it also
> depends on what daughterboards are plugged in.  
> That's why I pointed you at the gain_range() method.
> Your code should ask the rx side *and* the tx side.
>
> Eric

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