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Re: [Discuss-gnuradio] Trouble understanding multiple independent signal


From: Eric Blossom
Subject: Re: [Discuss-gnuradio] Trouble understanding multiple independent signals
Date: Mon, 18 Sep 2006 08:39:51 -0700
User-agent: Mutt/1.5.9i

On Mon, Sep 18, 2006 at 09:53:49AM -0400, address@hidden wrote:
> 
> Hi all,
> 
> I have been playing around with the fm_tx_2_daughterboards.py and others to
> send multiple signals at once.  I just wanted to confirm my
> suspicions about the USB transmit path because I didn't see anyone
> explicitly talking about this:  When I look in the usrp1.py and usrp.py files
> that only one interpolation parameter is given per USRP sink.  So, I am
> assuming for now that the signals I transmit must have the same sampling rate
> (i.e. the same interpolation rate) coming across the USB cable.  Is this
> correct?  Because the signals will have to be interleaved to go across the 
> USB,
> it would make sense that they would have to be the same sampling rate, but 
> maybe
> I'm missing something.
> 
> Thanks for any comments,
> 
> David Scaperoth

Hi David,

Your understanding is correct.

There's a slight chance that this will change at some point in the
future, but don't hold your breath ;)

Eric




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