[time-nuts] WWVB SDR discussion

[DON MURRAY]

Mike...

Which model did you order?


73
Don
W4WJ

On Thursday, August 20, 2020 Mike Feher <time-nuts at lists.febo.com> wrote:
I just purchased 2 of those La Crosse 14" clocks and was totally amazed. I
live on the Jersey shore on one acre surrounded by trees and about 8 miles
from the ocean. After I placed batteries in the clock, it went through its
initially routine which was neat in itself, and about an hour or less later
the motors purred again and it went to the exact time and continues to do
so. This was on the first floor of my Colonial in my office next to the
computer and all sorts of other digital and switching PS noise and only
about a foot off the floor. My old Junghans Mega 1000 could never do that. I
have to take it upstairs with me and place it by the front (South facing)
window of the master bedroom and sometime during the night it acquires and
corrects if need be. Regardless, I still like my Junghans, but this new
waveform is amazing. Thanks for mentioning it. Regards - Mike  

 

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

 

-----Original Message-----
From: time-nuts <time-nuts-bounces at lists.febo.com> On Behalf Of Tom Van Baak
Sent: Tuesday, August 11, 2020 6:45 AM
To: time-nuts at lists.febo.com
Subject: Re: [time-nuts] WWVB SDR discussion

 

Ray,

 

I don't see a crystal filter. There is a 16 MHz crystal, but that's for the
processor.

 

"Inside the La Crosse 1235UA UltrAtomic Radio Controlled WWVB (Atomic) Wall
Clock"

 <http://leapsecond.com/pages/ultratomic/>
http://leapsecond.com/pages/ultratomic/

 

"ES100 datasheet, including block diagram, application circuit, and theory"

 <http://leapsecond.com/pages/es100/ES100DataSheetver0p97.pdf>
http://leapsecond.com/pages/es100/ES100DataSheetver0p97.pdf

 

"Universal Solder ES100 cob dev kit"

 <http://leapsecond.com/pages/es100/pins.htm>
http://leapsecond.com/pages/es100/pins.htm

 

/tvb

 

 

On 8/10/2020 11:09 PM,  <mailto:rcbuck at atcelectronics.com>
rcbuck at atcelectronics.com wrote:

> Does the La Crosse UltrAtomic clock actually use a crystal filter or 

> do they digitally filter the signal? Has anyone ever looked inside of 

> one of the clocks? Just curious.

> 

> Ray

> AB7HE

> 

 

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