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