Re: [Discuss-gnuradio] set_auto_tr(), gr_stall, and PTT

[Robert Miller]

Michael,

Any luck in answering your last question?:

"I was really hoping to <do> simultaneous TX/RX using - 
just- the TX/RX antenna on an RFX board, but I've had no luck doing  
that.  Anyone know if this last scenario is possible?"

I am very much interested in the same functionality.

Thanks,
Rob


Michael Dickens-2 wrote:
> 
> On Sep 10, 2007, at 10:07 PM, Eric Blossom wrote:
>> There's no gr_stall.  Currently auto_tr mode is used with the packet
>> data examples.  See gnuradio-examples/python/digital.  There is no
>> explicit "stall", the transmitter pipeline stalls when no packets are
>> being fed into the PHY via the message source.
> 
> OK.  Well, I'll create a "stall" block and see how it works under a  
> standard PTT scenario.
> 
> Upon further reflection, I think doing simultaneous TX/RX might work  
> better when doing the "push" of PTT.  That way I can see the TXd  
> signal on the RX side - but then mute it so that the (loopback) sound  
> doesn't come through.  From reading the GNU Radio list archives,  
> doing simultaneous TX/RX seems possible using either separate TX and  
> RX daughtercards, or different antennas on a single RFX series  
> daughtercard.  I was really hoping to to simultaneous TX/RX using - 
> just- the TX/RX antenna on an RFX board, but I've had no luck doing  
> that.  Anyone know if this last scenario is possible?  Thanks again.  
> - MLD
> 
> 
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