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Re: [Discuss-gnuradio] how to trigger dynamic reconfiguration with lock/


From: Sim IJskes
Subject: Re: [Discuss-gnuradio] how to trigger dynamic reconfiguration with lock/disconnect
Date: Sat, 04 Jun 2011 12:06:26 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110424 Thunderbird/3.1.10

On 02-06-11 05:35, Marcus D. Leech wrote:
On 06/01/2011 11:07 PM, Yang wrote:
Would you like to expand it in detail or refer me to some places I can
look for? Dose this need 2 antennas on 1 daughterboard? It would be
great if I can build a graph with rx path and tx path and run 2 paths
simultaneously.
Yes, you'll need two antenna, and a daughtercard that supports
full-duplex (basically, any other
   than the XCVR2450).

It's easiest to create such a flow-graph using GRC initally, and then
perhaps modify it if necessary to
   add your own logic, etc.

I've found it impossible to create a half-duplex transceiver with WBX and one antenna in grc. Would an open valve in the transmit chain stop the transmitter and enable the receiver, or would a closed valve in the receiver automatically stop the transmitter? I've experimented with several combinations, and all i found was as soon as the transmit chain is activated the receiver looses sensitivity. Is it possible with WBX and GRC alone?

Gr. Sim



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