[time-nuts] WWVB sync

Max Robinson max at maxsmusicplace.com
Fri Mar 22 02:17:55 UTC 2013


Interference can come from unexpected sources.  For a couple of months I was 
cursing an on-off wide band noise that extended from VLF to about 5 MHz.  I 
started tracing it with a transistor radio and found it was coming from a 
battery charger in my own woodworking shop.  Now I turn off that plug
strip unless I am actually charging a battery.

Regards.

Max.  K 4 O DS.

Email: max at maxsmusicplace.com

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----- Original Message ----- 
From: "Bob Camp" <lists at rtty.us>
To: "'Discussion of precise time and frequency measurement'" 
<time-nuts at febo.com>
Sent: Thursday, March 21, 2013 11:21 AM
Subject: Re: [time-nuts] WWVB sync


> Hi
>
> Some of these clocks and watches seem to like midnight as the magic time 
> to
> synchronize. That's certainly what the Casio's do.
>
> Bob
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of paul swed
> Sent: Thursday, March 21, 2013 9:41 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] WWVB sync
>
> True but not during the day. I don't seem to have trouble with MSF. But at
> night I do.
> So the old sharp did sync last night. Hmmm a local event or fresh
> batteries. I know I have added a new switching power supply for my tablet.
> Hmmmmmmmm
>
> On Thu, Mar 21, 2013 at 7:01 AM, Bob Camp <lists at rtty.us> wrote:
>
>> Hi
>>
>> The other half of the equation is 60KHz interference from MSF. Winter
>> propagation may favor them.
>>
>> Bob
>>
>> On Mar 20, 2013, at 5:24 PM, paul swed <paulswedb at gmail.com> wrote:
>>
>> > Joking aside is there an actual transmission power level issue? This 
>> > has
>> > been going on it seems since the time change.
>> >
>> > On Wed, Mar 20, 2013 at 5:23 PM, paul swed <paulswedb at gmail.com> wrote:
>> >
>> >> Guys this is just silly build a 10' square loop and preamp. Driver amp
>> and
>> >> place it 400 ft from the house. Now run coax to your wrist and use 
>> >> link
>> >> coupling next to the watch.
>> >> Open a six pac and wait.
>> >>
>> >>
>> >> On Wed, Mar 20, 2013 at 5:10 PM, David McGaw <n1hac at alum.dartmouth.org
>> >wrote:
>> >>
>> >>> I am seeing the same thing in NH with my Casio, and some other clocks
>> are
>> >>> having trouble, though I did get my watch to sync last night after
>> turning
>> >>> off all the possible interfering devices in the house.  Life on the
>> fringe?
>> >>>
>> >>> David N1HAC
>> >>>
>> >>>
>> >>>
>> >>> On 3/20/13 5:02 PM, Lee Reynolds wrote:
>> >>>
>> >>>> I'm hoping it's propagation (I'm up in far northern Maine) but thus
>> far
>> >>>> my Casio wristwatch appears to be going through a particularly long
>> stretch
>> >>>> of non-syncing.
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