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

Bob Camp lists at rtty.us
Tue Jan 1 18:53:23 UTC 2013


Hi

The first thing to think about is "what did I get for Christmas?". If it runs 24 hours a day, it might be the source of the problem. Just about anything *could* have a switching power supply in it these days. It could be as silly as the plug in the wall charger for a cell phone. 

Bob

On Jan 1, 2013, at 12:54 PM, "Anthony G. Atkielski" <anthony at atkielski.com> wrote:

>> For DCF77 a very typical source of trouble is old CRT-based televisions
>> or monitors, since 15625 Hz * 5 = 78125 Hz
> 
> I suppose someone nearby could have received a collector's-item
> Trinitron for Christmas.
> 
> What about Wi-Fi, cell phones, and such? They are way far away in
> frequency, but I'm not a radio engineer. Anything high-tech that could
> interfere?
> 
> --
> Anthony
> 
> 
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