[NLRS] Link -- New phase-modulation WWVB signal

[tosca005 at umn.edu]

Gordon:

How many different time zones does your clock support? It is possible that 
if you pick a time zone of GMT instead of LONdon that it will be smart 
enough to not use the DST correction. Also, on my three radio-controlled 
clocks, there is a setting on the menus for DST to ON, OFF, or AUTO. I have 
always used AUTO and it has always changed automatically on the correct 
day, even when the DST rules changed because it was following the DST 
signal from Colorado instead of a date rule. Since my watch has missed all 
time corrections (at 2, 4, amd 6 AM) since 03/08/13, including the DST 
correction, I had to set the DST to ON for now to have the watch show me 
the correct time. And it is already a couple of seconds off from the WWV 
time without the benefit of 6 days of time corrections.

All:

Probably either a reduced signal strength or poorer propagation rather than 
a change in modulation methodology is to blame for all of our formerly 
working radio controlled clocks no longer working properly. One other point 
to mention is that I had an older "atomic watch" that stopped making radio 
syncs after I shook my left hand too vigorously (probably shaking a can of 
shaving cream) and the ferrite antenna inside the watch broke one of its 
leads, leaving the watch antenna-less. Had no success in soldering it back 
in place, so the watch became e-waste. It is conceivable that I did it 
again, but I haven't opened up the current watch to look.

On Mar 13 2013, Gordon L Snarr wrote:

>
>
>I have an "Atomic Time" dual zone radio controlled wall clock in the 
>shack here that didn't want to self adjust for a year or two. All of a 
>sudden a few months ago it started picking up the time signal again and 
>has been working flawlessly since then. Maybe this clock was designed to 
>pick up the phase modulation... seems quite a coincidence it started 
>working again when the broadcast changed. It even did the automatic DST 
>last Sunday. I don't remember it ever doing that in the past. Was 
>thinking of attaching an external antenna to it somehow but that was a 
>project that was too low on the priority list, now maybe I won't have to!
>Only drawback to this clock is the DST also affects the GMT side, 
>suppose the clock was designed for the average home user that wouldn't 
>be interested in zulu time and would display the month/day on the second 
>part of the digital display. I just go into the menu and select an 
 offset of -1 hour on the Z side and it goes back to reading the proper 
time.
>
>