WA5IYX letter to K6EDX - April 12, 1968














This was just before Bob Cooper's several-month stint as KV4FU.  He returned stateside in early 1969
to settle near OK City as W5KHT, much later moving on to be VP5D, and lastly as ZL4AAA.  My letters 
to him had started shortly before in response to his early 1968 QST articles on Solar Cycle 20 and  
its likely effects on 50-MHz F2 DX.