[time-nuts] A man with two clocks...

[Max Robinson]

Still laughing.  Actually I did it aurally.  The GPS clock announces the 
time on the hour with a series of beeps similar to the old BBC time and the 
WWVB clock has an alarm which I can set to sound on the hour.  The time 
interval is an estimation.  Someday I will use a microphone connected to a 
storage  oscilloscope to figure out what the difference is.

Regards.

Max.  K 4 O DS.

Email: max at maxsmusicplace.com

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----- Original Message ----- 
From: "Tom Knox" <actast at hotmail.com>
To: "Time-Nuts" <time-nuts at febo.com>
Sent: Thursday, October 03, 2013 1:46 PM
Subject: Re: [time-nuts] A man with two clocks...


> It is all a matter of proper placement, now I know you are expecting a 
> tirade on propagation delay and antenna placement and cable length. But 
> actually my thought is to place them far enough apart with the WWV clock 
> in front of your and your GPS at a 12-15 degree angle so it takes 0.2 
> second to look from one to the other.
>
> Thomas Knox
>
>
>
>> From: david-taylor at blueyonder.co.uk
>> To: time-nuts at febo.com
>> Date: Thu, 3 Oct 2013 19:22:04 +0100
>> Subject: Re: [time-nuts] A man with two clocks...
>>
>> Among my time nut toys is a Consumer grade GPS clock and a similar WWVB
>> clock.  The WWVB clock consistently runs about 0.2 seconds ahead of the 
>> GPS
>> one.  I know no one can say why without knowing the particulars of the 
>> two
>> clock's circuits.  Just thought I'd post it for what it's worth.
>>
>> Regards.
>>
>> Max.  K 4 O DS.
>> ===================================
>>
>> Max,
>>
>> I see similar things here.  I've always put it down to relatively poor
>> circuitry in the radio clock, which is why I built my NTP-controlled wall
>> clock!
>>
>>   http://www.satsignal.eu/raspberry-pi/DigitalClock.html
>>
>> One radio clock is below.  That particular MSF clock is actually not too
>> bad - visibly it's in sync with the NTP clock (which itself is within a 
>> few
>> microseconds of GPS time).
>>
>> 73,
>> David GM8ARV
>> -- 
>> SatSignal Software - Quality software written to your requirements
>> Web: http://www.satsignal.eu
>> Email: david-taylor at blueyonder.co.uk
>>
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