WWV: Circa early 1971
/Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:
Prior to July 1, 1971, time and standard frequency station WWV in Fort Collins, Colorado was giving ID's in Morse code as well as voice every five minutes. They were best heard here in southern Ontario, Canada on 10 and 15 MHz.
Reception location: Ancaster, Ontario, Canada
Receiver and antenna: Hallicrafters S-52 using a longwire antenna