Re: [Discuss-gnuradio] USRP1 Simultaneous Receive and Transmit

[Chao Dong]

Hi Matt,
Is there any example in current Gnuradio release that implementing full deplex 
with one USRP motherboard and two daughterboards?
As i understand, i must call source_c twice to use the two daughterboards, but 
this seems impossible. Then how can i use the two daughterboards in one 
flowgraph?
Thanks very much!
----- Original Message ----- 
From: "Matt Ettus" <address@hidden>
To: "Jim V" <address@hidden>
Cc: <address@hidden>
Sent: Wednesday, May 26, 2010 11:29 PM
Subject: Re: [Discuss-gnuradio] USRP1 Simultaneous Receive and Transmit


> On 05/26/2010 03:23 AM, Jim V wrote:
>>
>> Hi everyone,
>>
>> is it feasible to transmit and receive simultaneously having one USRP1 with
>> 2 daughtercards (2 RFX) (for example in Side A receiving and in Side B
>> transmitting)? Is there any example in GnuRadio?
>>
>> Thank you in advance
> 
> 
> Yes, this is known as full duplex.  You can even do it with a single RFX 
> card both transmitting and receiving, but it will have somewhat higher 
> crosstalk than with 2 daughterboards.
> 
> Matt
> 
> 
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