[time-nuts] Is there anything wrong with DCF77?

[Tom Harris]

If you can look at the output of a DCF77 demodulator you should see a nice
clean set of 100ms/200ms pulses every second. All you need is a CRO, or you
could just use a LED to indicate the state.

On 2 January 2013 01:00, George Race <george at mrrace.com> wrote:

> Hi Anthony, is there any possibility that you have a source of local
> interference that started up in your home or area?
> From time to time, I have had everything from power line arcing noise to a
> new computer power supply that was generating a high level of interference
> blocking signals on different frequencies.
>
> If you have a spectrum analyzer available that will cover the frequency
> range of DCF77, it may not hurt to look around and see what you can find.
>
> George
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Anthony G. Atkielski
> Sent: Tuesday, January 01, 2013 7:40 AM
> To: time-nuts at febo.com
> Subject: [time-nuts] Is there anything wrong with DCF77?
>
> For the past several days (now thirty hours straight), none of my
> radio-synchronized clocks has been able to synchronize with DCF77. Is
> there a problem with the transmitter, or maybe a geomagnetic storm or
> something that could explain it? I've been looked at the transmitter
> Web site and searching for news and information on any disturbances
> that would affect reception, but I haven't found anything. I'm about
> 500 km from the station. The only thing I have that will sync is my
> wristwatch, and it will only do it if I stand outside in an open area.
>
> --
> Anthony
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>



-- 

Tom Harris <celephicus at gmail.com>