[Elecraft] WWWV for calibration.

[DolfinDon@aol.com]

Are not the WWV tones 440 and 600?

Check their web site for the format.
73,
Stuart K5KVH


OK.  I checked the website and here is the text straight from the horses 
mouth. Yes, they do send a 440 tone, but only once an hour.

From the WWV website:

Both WWV and WWVH broadcast standard frequency audio tones that alternate 
during most minutes of the hour. Most minutes feature a 500 or 600 Hz audio 
tone. However, a 440 Hz tone is broadcast once per hour, and some minutes do 
not include any audio tones at all.

The schedule for the audio tones is listed in the table, with the minutes 
labeled from 0 to 59.

Audio Tone  Station Minutes 
500 Hz  WWV 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 22, 24, 26, 28,
32, 34, 36, 38, 40, 42, 52, 54, 56, 58  
500 Hz  WWVH    3, 5, 7, 11, 13, 21, 23, 25, 27, 31, 33, 35, 37, 39, 41,
43 to 45, 47 to 51, 53, 55, 57  
600 Hz  WWV 1, 3, 5, 7, 11, 13, 17, 19, 21, 23, 25, 27, 31, 33, 35, 37,
39, 41, 53, 55, 57  
600 Hz  WWVH    2, 4, 6, 12, 20, 22, 24, 26, 28, 32, 34, 36, 38, 40, 42, 46,
52, 54, 56, 58  
440 Hz  WWV 2   
440 Hz  WWVH    1   
None    WWV 29, 43 to 51, 59    
None    WWVH    0, 8 to 10, 14 to 19, 30    
The 440-Hz tone (the musical note A above middle C) is broadcast once each 
hour, during minute 2 on WWV, and minute 1 on WWVH. In addition to being a 
musical standard, the 440-Hz tone provides an hourly marker for chart 
recorders and other automated devices. The 440-Hz tone is omitted, however, 
during the first hour of each UTC day.

    

Don Brown
KD5NDB