[time-nuts] WWVB BPSK Receiver Project?

[Attila Kinali]

On Wed, 14 Mar 2012 18:14:56 -0700
WB6BNQ <wb6bnq at 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