In {HEAD ~ a further embodiment}, {TAIL ~ a variable antenna electrical length module} is provided with a control signal for selecting a preferred antenna electrical length 
In { HEAD ~ a further embodiment } , { TAIL ~ a variable antenna electrical length module } is provided with a control signal for selecting a preferred antenna electrical length
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH