On Jan 3, 9:14*am, David wrote:
msg wrote:
RHF wrote:

On Jan 1, 10:00 pm, Greg wrote:

I must be incredibly nerdy, because I spent 10 minutes the other day
getting my new G5's clock to click over at the exact moment the minute
tone on the WWV station began.

I've noticed, however, that after a few hours the minute clicks over
before the tone, and in fact after a day, up to 4 or 5 seconds. Has
anyone else noticed the G5's clock not being very accurate?

Greg - It's a 'portable' AM-FM Shortwave Radio
-not- a WWVB Radio Controlled Clock. ~ RHF
*.

But it should be; I feel that _any_ clock in a SW rcvr that is also
used for controlling the rig should be radio controlled. The chipsets
are so cheap now that cost is really not an excuse. Since the clock
is embedded in a rcvr, the mcu could select the source WWVB, WWV, CHU,
etc. as propagation dictates.

Regards,

Michael

I don't know of any clocks that synchronize automatically to WWV or CHU.

There are lots of clocks and watches that synch to the local time
standard. In the USA it would be the 60khz signal from the NIST. I
believe it is WWVB that sends the signal and not WWV but the
difference is not relevant.


* As far as I know there's WWVB and a station in Germany.

The cheapest most accurate clocks are the ones that use the AC mains for
a timebase.

Actually the clocks with the most accurate display would be those that
synchronize daily with a time standard. That would include Atomic
(radio) Clocks and PC Clocks.

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Radioguy wrote:

There are lots of clocks and watches that synch to the local time
standard. In the USA it would be the 60khz signal from the NIST. I
believe it is WWVB that sends the signal and not WWV but the
difference is not relevant.

Not relevant? How so? The FCC would fine them if they misidentified so
there is at least some relevance on some level.

As far as I know there's WWVB and a station in Germany.

The cheapest most accurate clocks are the ones that use the AC mains for
a timebase.

Actually the clocks with the most accurate display would be those that
synchronize daily with a time standard. That would include Atomic
(radio) Clocks and PC Clocks.

Find me a PC for under $10. Same for an atomic watch. And there are
many PCs that wander 10 seconds or more between NTP updates. The
traditional synchronous clock is the champion for staying on the correct
time the best over an extended period of time, without a reset of some kind.

Try to pay attention sparky. The thread is about quartz clocks being sucky.