On Wed, 14 Mar 2012 18:14:56 -0700
WB6BNQ <wb6...@cox.net> wrote:
>
> His enthusiasm was aimed totally at new products. Although he admitted
> it leaves all the real Timenut type people, actually
> using the system for its intended purpose, out in the cold, he really
> did not seem to care. Pointing out that a failure
> with the GPS system left WWVB as the only alternate did not seem to
> matter either.
Could someone be so kind and could explain me what the problem with
the BPSK modulation is? I mean the phase of WWVB shifts around several 10us
during sunrise/sunset already... Not to talk about the changing propagation
conditions. Just see [1] for an example of what's happening.
Yes, for those devices that lock on the phase, you'd have to change
their correction/detection loop, but overall, they should still work.
Attila Kinali
[1] http://www.febo.com/time-freq/wwvb/spectracom/index.html
--
The trouble with you, Shev, is you don't say anything until you've saved
up a whole truckload of damned heavy brick arguments and then you dump
them all out and never look at the bleeding body mangled beneath the heap
-- Tirin, The Dispossessed, U. Le Guin
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