Hi Chris, Surely this is the converse of Laurie's result? John, G4CNN Hello John I'm not sure. A SNR graph for the same period of time may differ from the "Signal" graph in the Terman book. -Christer
Hi Chris, Surely this is the converse of Laurie's result? John, G4CNN _______________________________________________________ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/
"Radio Engineer's Handbook" by Terman (1943): http://home5.swipnet.se/~w-54761/terman1.jpg http://home5.swipnet.se/~w-54761/terman2.jpg There seems to be a close correlation between sunspot numbers a