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Surely this is something new but duplex (simo xmit and recve) has been in use for many years. Albeit, on different frequencies with a tuned cavity in the antenna line filtering out the xmit freq to eliminate interference. If this, NFI, is on the SAME frequency without any TDMA or similar scheme, then is is very interesting but the two antennas will make it problematic for the portable transceiver market including sell phones. Rem how much trouble the iPhone has keeping ONE from detuning.
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