‰ NOW 25 WPM ‰ TEXT IS FROM SEPTEMBER 2013 QST PAGE 39‰ NOTE THAT WITH A PERFECTLY DEFINED SET OF DRIVE CURRENTS AND A PERFECT GROUND THE BEST POSSIBLE GAIN AND FRONT TO BACK RATIO WOULD BE 10R8 DBI AND 29R8 DB. IN TABLE 7 THE OFF AXIS ELEMENT DRIVE CURRENTS ARE HIGHLIGHTED. FIRSTLY THEY ARE INVARIABLY LOW COMPARED WITH THE ON AXIS ELEMENTS. IT SHOULD BE RELATIVELY EASY TO CORRECT THIS BY INCREASING THE NUMBER OF SECONDARY TURNS OF THE APPROPRIATE TRANSFORMER AND SHOULD LEAD TO AN IMPROVED FRONT TO BACK RATIO. HOWEVER THIS WILL UNDOUBTEDLY DISTURB THE TRANSFORMATION OF THE CENTRAL ELEMENT FEEDER IMPEDANCES AND MEASURES WILL BE NEEDED TO ENSURE THAT THE TRANSFORMED IMPEDANCES COMBINE IN PARALLEL TO APPROACH 50. HARDER TO UNDERSTAND ARE THE OFF AXIS CURRENT ASYMMETRIES. THESE ELEMENTS ARE DRIVEN FROM THE SAME SECONDARY WINDING THROUGH TWO FEEDERS THAT HAVE THE SAME LENGTHS AND SHOULD DELIVER VERY SIMILAR DRIVE CURRENTS. THE ASYMMETRIES ARE NOT REVERSED NOR REPLICATED IF THE BEAM ‰ END OF 25 WPM TEXT ‰ QST DE W1AW ƒ