Re: 'Official' TiPS elsets are very accurate (followup)

Walter Nissen (dk058@cleveland.Freenet.Edu)
Thu, 21 Aug 1997 11:09:47 -0400 (EDT)

palmer@sfu.ca (Leigh Palmer) writes: 
 
> >assume that a narrow band audio filter would really make those second 
> >ticks stand out from the background noise that so often plagues HF 
 
> Narrow-band filters seldom sharpen wide band material, like ticks. 
 
I am operating outside of my range of experience, but the "Time and 
Frequency User's Manual" seems pretty clear on this matter.  "Tick" is 
apparently a euphemism, or approximation to the impression of the 
received sound.  In fact, the manual actually uses the word tick with 
double quotes around it, "tick".  Each WWV tick consists of 5 ms of 
1000 Hz (WWVH 1200 Hz, CHU 300 ms 1000 Hz).  So, even if there is some 
spread, the received audio frequency of the signal should be highly 
concentrated in the region of 1000 Hz. 
 
Cheers. 
 
Walter Nissen           dk058@cleveland.freenet.edu 
-81.8637, 41.3735, 256m elevation 
 
--- 
 
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I don't like this forest.  It's dark and creepy.    Dorothy, The Wizard of Oz 
Good attitude: 
Oh, look, there's a clearing.  See how beautiful the night sky is.