The invention relates to {TAIL ~ a transceiver unit} for {HEAD ~ operation} at a first and second transmitting/receiving frequency 
The invention relates to { TAIL ~ a transceiver unit } for { HEAD ~ operation } at a first and second transmitting / receiving frequency
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH