[Elecraft] OT: K3 timekeeping

[Jim Brown]

On Wed,11/26/2014 4:54 PM, Fred Jensen wrote:
> The second and third harmonics of the tones, maybe the fourth harmonic 
> depending on conditions and strength of the signal at your QTH 

How far down were the harmonics? -40 is 1% distortion, -50 is 0.32%. 5% 
is widely considered to be "communications quality."

When I've listened to WWV (not often), I hear distortion. They're a 
Standard for Frequency and Time, not high futility. :)

73, Jim K9YC