K3 Clock loses time

[Jon Stromsland]

This is a subject I have not seen before on the net.
I have noticed that the clock on my K3 loses a few seconds every day. Is this normal and has anyone else noticed this?
 
Jon
WA6LJS
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Brian - K1NW]

I calibrate my K3 clock to the computer every couple of weeks and it is never more than 15 seconds off or so. This has been addressed before on the list serve. Hope this helps.

[Phil Hystad-3]

I have not measured the accuracy of the clock but I expect it to lose time.  And, I never refer to it, never use it.  I have a big wall clock that above the K3 that tells me the time (actually, it does not "tell" me the time, I have to look at it) but it loses a good minute or two per week.  I let it get as much as several minutes in error before I bother to correct it.  My watch is pretty good though.  I set it about three times a year and I have never had it more than two-seconds from accurate Internet time.  It is a Citizen EcoDrive -- powered by light!

A corollary question:  who actually uses the K3 clock?

73, phil, K7PEH


On Dec 28, 2012, at 10:50 AM, Jon Stromsland <[hidden email]> wrote:

> This is a subject I have not seen before on the net.
> I have noticed that the clock on my K3 loses a few seconds every day. Is this normal and has anyone else noticed this?
>  
> Jon
> WA6LJS
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[John_N1JM]

Yes.

[k6dgw]

I only vaguely remember how to find the clock display on my K3, just
did, and it is about 1 year and a week off.  I don't remember when I
last set it.  Likewise with the clock in the K2.  I never look at them.

I'm currently building a 40-station irrigation controller for my
Kamikaze Gardener wife [replaces 6 aging timers in the basement] using a
pair of Microchip PICs and the Hamstack components.  The C Library
includes Unix-like timekeeping off the CPU clock.  It is remarkably
accurate [fast by about a second/week], but the library has an
adjustment function in parts/10E-8.  With that, I've gotten it to stay
with WWV to within a second over 5 months or so.  I suppose something
like that could be built into the K3/K3 Utility, but I really doubt very
many people use the clock.  There have to be higher priority items on
Wayne's K3 to-do list ... including displaying the K3 output power I can
expect when I first tap the paddles after switching the KPA500 between
STBY and OPER ... I hope. :-)

My not-terribly-expensive Casio analog/digital watch that I used when
traveling for my employer [does multiple time zones] needs to be set
whenever it needs a new battery.  Other than that, it's within a second
or two of WWV all the time.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org


On 12/28/2012 12:00 PM, Phil Hystad wrote:
> I have not measured the accuracy of the clock but I expect it to lose
> time.  And, I never refer to it, never use it.  I have a big wall
> clock that above the K3 that tells me the time (actually, it does not
> "tell" me the time, I have to look at it) but it loses a good minute
> or two per week.  I let it get as much as several minutes in error
> before I bother to correct it.  My watch is pretty good though.  I
> set it about three times a year and I have never had it more than
> two-seconds from accurate Internet time.  It is a Citizen EcoDrive --
> powered by light!

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[ve3dvy]

The clock on my K3 loose time quite fast.  at least a few seconds a day.

On 12/28/2012 1:50 PM, Jon Stromsland wrote:

> This is a subject I have not seen before on the net.
> I have noticed that the clock on my K3 loses a few seconds every day. Is this normal and has anyone else noticed this?
>  
> Jon
> WA6LJS
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Vic Rosenthal]

The only time I ever use it is when I run down to the shack and work a rare DX station
before my logging computer has a chance to boot!

On 12/28/2012 12:00 PM, Phil Hystad wrote:
> A corollary question:  who actually uses the K3 clock?

--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Bill Frantz]

I use it to make sure I've got the right UTC <--> local time
offset. My iPhone also knows UTC. Oh, and RUMlog also knows UTC.
I probably don't use it more than two or three times a year.

I set it to my computer's time every time I run the K3 utility,
which is at least every time I hear on this list of a new
version of the firmware. It is usually off by 20 seconds or so,
which is plenty accurate enough to check the UTC offset. :-)

On the other hand, my computer uses network time protocol and
has been spot on every time I've listened to WWV.

Cheers - Bill, AE6JV/1

On 12/28/12 at 12:00 PM, [hidden email] (Phil Hystad) wrote:

>A corollary question:  who actually uses the K3 clock?

-----------------------------------------------------------------------
Bill Frantz        | gets() remains as a monument | Periwinkle
[phone]      | to C's continuing support of | 16345
Englewood Ave
www.pwpconsult.com | buffer overruns.             | Los Gatos,
CA 95032

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Brian - K1NW]

Jon, I searched the Nabble site and found a long thread from June 24, 2010 with the title "clock accuracy". Worth reading through.