{HEAD ~ A gap} is provided between {TAIL ~ the top} of the IFF antenna and the bottom of the GPS antenna having a predetermined width 
{ HEAD ~ A gap } is provided between { TAIL ~ the top } of the IFF antenna and the bottom of the GPS antenna having a predetermined width
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH