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Re: [Discuss-gnuradio] Simultaneous RX/TV with RFX2400

From: Michael Dickens
Subject: Re: [Discuss-gnuradio] Simultaneous RX/TV with RFX2400
Date: Mon, 13 Apr 2009 19:55:45 -0400

On Apr 13, 2009, at 5:17 PM, Bishal Thapa wrote:
I was working on the similar problem. What about using two TX daughter
boards in the same motherboard, and BOTH TRANSMITTING  signals
simultaneously, one from each daughter board, but in an "overlapped"
fashion. Is it easily possible? What I mean is, I would like to have two signals generated from two daughter boards plugged into the same motherboard
but interleaved in some fashion so that I can study the effect of that
interleaving on the receiver side (receiver is on a different host far from these two simultaneously transmitting USRPs). Sorry if I am not being clear.

Hi Bishal - I understand the basics if what you're trying to do, but not the specifics. If the TX interleaving is done in frequency (FDMA or OFDM) or codes (CDMA), then you should be able to do what you want with some clever programming. OTOH, TDMA interleaving could be an issue -- depends on how you've implemented the overall system. I can think of a number of ways to configure TDMA-like transmissions that could work in your dual USRP setup -- that said, they all require very clever programming. Tell us more specifics of what you're trying to do, and maybe we can help more precisely (either on or off list, as you see fit). - MLD

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