{TAIL ~ Layered despreading} can be performed in a spread spectrum receiver used in either the emergency transceiver, the locator transceiver, or both, in {HEAD ~ accordance} with some embodiments of the present invention 
{ TAIL ~ Layered despreading } can be performed in a spread spectrum receiver used in either the emergency transceiver , the locator transceiver , or both , in { HEAD ~ accordance } with some embodiments of the present invention
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