
Hello ALL -- IT is unusual that I would post to the ODVupon the passing of a fellow ham. It is with deepestregrets that I must inform my colleagues on ODV that I have just learned of the passing of Richard "Dick" Knadle, K2RIW of Dix Hills, New York. Unless you are a long-time VHF/UHF enthusiastyou might not recognize the call, but going backinto the late 70's and early 80's Dick's designsfor antennas and amplifiers were well recognizedand the foundation of a rapid growth in VHF/UHFweak signal activity. As a young ham I was fortunate enough to havebuilt the 432 MHz stripline amplifier following thedetails in his QST article which were published in the early 70's. For many of us, his designwas behind much of the weak-signal and EME activityin the 70's and 80's. Owing the the high efficiency of his strip-line plate resonator design, I remember getting 750 watts from a pair of 4cx250's on 432.The use of those tubes were affordable at the timewhich made UHF QRO a reality for those of us on a budget... His antenna design that used elementsinsulated from the boom were at the time consideredrevolutionary with a gain figure and clean patternthat was easily duplicated by many home-brewers. For decades the RIW-16's were to be found in widespread use on 432 weak-signal. Dick was widely recognized as and engineer'sengineer and a friendly, approachable sort who ran a weekly technical net on the LIMARS repeater, back in the day. From what I have been able to learn so far,there are no published arrangements. 73, Kermit W9XA