Garry & All: SIW trying to come through 100% on ARGO here in EN90xn this afternoon on my SW EWE transformer---likely 3 or 4 dB down from front main lobe on the 18 x 70 x 18 ft EWE antenna..... http://i1296.photobucket.com/albums/ag19/wa3tts/siwd1513_zpsc4ba22ff.jpg 73 Mike wa3tts