Atomic Time
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Posts: 46,084
Does Parallax still have an atomic time module for the Stamp? I didn't
see one on their site. If not does anyone where I could get one?
Thanks,
Rich
[noparse][[/noparse]Non-text portions of this message have been removed]
see one on their site. If not does anyone where I could get one?
Thanks,
Rich
[noparse][[/noparse]Non-text portions of this message have been removed]
Comments
I don't know if Parallax has one, but I have a cheapie method. It depends on
if you need the actual time in data output or just synchronization. I made a
little hillbilly device for my seismic recorder, so that I can synch events
with other stations and calculate epicenter and so on. It actually goes to a
data logging program on a PC not a stamp. Anyway, I took a WWBV clock
movement, and put a photogate where the second hand passes it exactly on the
12 o'clock spot. It is perfect for my needs, as it puts a nice mark on the
data log every minute, so I can easily figure out what time an event
occurred. Very cheap, reliable and resets and synchs itself automatically,
accurate to less than a second, but only useful in some applications. I'm
also guessing you could probe the WWBV clock board and directly tie the
output to the stamp, eliminating the photogate and increasing the resolution
to near perfect. Still no data output though.
Jonathan
www.madlabs.info
Original Message
From: "Richard Brull" <rich@c...>
To: <basicstamps@yahoogroups.com>
Sent: Monday, December 30, 2002 1:06 PM
Subject: [noparse][[/noparse]basicstamps] Atomic Time
> Does Parallax still have an atomic time module for the Stamp? I didn't
> see one on their site. If not does anyone where I could get one?
>
> Thanks,
>
> Rich
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
>
hoping Parallax or somebody still made or carried these modules I
remember seeing an ad for them in Nuts & Volts, of course that was
before I had a project that needed them. I am building a lighting
control panel for a customer and I would like to set it up to
automatically adjust for time changes.
Rich
Original Message
From: Jonathan Peakall [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=vP0OgYjUIJC4YEg8v0HqpllA4la3u_SW6sFJe8-rnFB0cn1NnShdO0Ln7JW_PZXSPo7LFBizK-r7S_Mqka258A]jpeakall@m...[/url
Sent: Monday, December 30, 2002 6:45 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Atomic Time
Rich,
I don't know if Parallax has one, but I have a cheapie method. It
depends on
if you need the actual time in data output or just synchronization. I
made a
little hillbilly device for my seismic recorder, so that I can synch
events
with other stations and calculate epicenter and so on. It actually goes
to a
data logging program on a PC not a stamp. Anyway, I took a WWBV clock
movement, and put a photogate where the second hand passes it exactly on
the
12 o'clock spot. It is perfect for my needs, as it puts a nice mark on
the
data log every minute, so I can easily figure out what time an event
occurred. Very cheap, reliable and resets and synchs itself
automatically,
accurate to less than a second, but only useful in some applications.
I'm
also guessing you could probe the WWBV clock board and directly tie the
output to the stamp, eliminating the photogate and increasing the
resolution
to near perfect. Still no data output though.
Jonathan
www.madlabs.info
Original Message
From: "Richard Brull" <rich@c...>
To: <basicstamps@yahoogroups.com>
Sent: Monday, December 30, 2002 1:06 PM
Subject: [noparse][[/noparse]basicstamps] Atomic Time
> Does Parallax still have an atomic time module for the Stamp? I didn't
> see one on their site. If not does anyone where I could get one?
>
> Thanks,
>
> Rich
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject
and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
>
>
>
>
To UNSUBSCRIBE, just send mail to:
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The Atomic Time Clock hasn't been available from us for over a year. If my
memory serves me
correctly, the manufacturer of the product faced a discontinuance of one of the
main components and
was no longer able to make the product. The name of the manufacturer is
Ultralink, but I don't have
up to date contact information.
Erik Wood
Parallax, Inc.
599 Menlo Dr., Suite #100
Rocklin, CA 95765
(916) 624-8333
www.parallax.com
Original Message
From: Richard Brull [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=QjEHKWEFv_IICvH9VnWX3Pt47L5FY3E15b4G1qAhX_X_niXEqShCJ0DfwVOi8lbIrryQGSfBE7wHTQU9MfELiEA]rich@c...[/url
Sent: Thursday, January 02, 2003 7:25 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] Atomic Time
Thanks Jonathon, neat idea I may have to give it a try although I was
hoping Parallax or somebody still made or carried these modules I
remember seeing an ad for them in Nuts & Volts, of course that was
before I had a project that needed them. I am building a lighting
control panel for a customer and I would like to set it up to
automatically adjust for time changes.
Rich
Original Message
From: Jonathan Peakall [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=t8tBpx6dWdPoAUxrH8upi73C0LIww08uN0s73ZoBIm7jb5-rDFOXl4UFCypl_JW9uyr6r3OzZshWe-3H0yk]jpeakall@m...[/url
Sent: Monday, December 30, 2002 6:45 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Atomic Time
Rich,
I don't know if Parallax has one, but I have a cheapie method. It
depends on
if you need the actual time in data output or just synchronization. I
made a
little hillbilly device for my seismic recorder, so that I can synch
events
with other stations and calculate epicenter and so on. It actually goes
to a
data logging program on a PC not a stamp. Anyway, I took a WWBV clock
movement, and put a photogate where the second hand passes it exactly on
the
12 o'clock spot. It is perfect for my needs, as it puts a nice mark on
the
data log every minute, so I can easily figure out what time an event
occurred. Very cheap, reliable and resets and synchs itself
automatically,
accurate to less than a second, but only useful in some applications.
I'm
also guessing you could probe the WWBV clock board and directly tie the
output to the stamp, eliminating the photogate and increasing the
resolution
to near perfect. Still no data output though.
Jonathan
www.madlabs.info
Original Message
From: "Richard Brull" <rich@c...>
To: <basicstamps@yahoogroups.com>
Sent: Monday, December 30, 2002 1:06 PM
Subject: [noparse][[/noparse]basicstamps] Atomic Time
> Does Parallax still have an atomic time module for the Stamp? I didn't
> see one on their site. If not does anyone where I could get one?
>
> Thanks,
>
> Rich
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject
and
Body of the message will be ignored.
>
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http://docs.yahoo.com/info/terms/
>
>
>
>
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[noparse][[/noparse]Non-text portions of this message have been removed]
I was asking Parallax at COMDEX about this and thats when I found they no
longer had the module. I have been working in my present project with
atomic clock stuff and WWVB. This is what I can tell you.
If you go to this link:
http://www.maplin.co.uk
and do a search for the following items:
MK68Y (The module)
MK72P (The antenna)
You will see what the module and antenna look like. They sell these parts
for very high prices. No thanks.
The 4 main connections on the module are power, ground, module on-off, and
digital signal.
The digital signal is the demodulated 60khz signal transmitted from WWVB in
Colorado.
There is also a place for the antenna to tack on the module as well.
You can find info on this and the transmision specs here:
http://www.boulder.nist.gov/timefreq/stations/wwvb.htm
Since the signal is so weak, it is best to use an antenna with a ferrite core.
If you go buy a cheap atomic clock (8.00 on eBay or 12.00 at WalMart) then
you can crack it
open and start mining for parts. I know its basically destroying a
perfectly good clock but
you can feel better about it justifying it in the name of science. You only
need to cannibilize
2 pieces anyway and if you are careful you could replace them back and the
clock would function
fine again anyway. (Voice of experience). The 2 parts you grab are the
ferrite antenna which is
all ready with capacitor attached and tuned to 60khz. Believe me, winding
your own is a pain in
the ***. The other part you want is the 4 connector module. It looks very
similar to the pic at
the Maplin site listed above.
You can take these pieces and slap them on a breadboard. Measure the power
at the module while
it is still in the clock if you can because it has a low operating voltage.
You can hook the
digital out to an oscilliscope and see the most unpredictible signal you
ever saw. Its not like
the pretty bit-code picture they show at the NIST site. This is because
the signal is weak and has
dropouts. Thats why some atomic clocks (radio controlled - lets get that
straight) wont even set
themselves right off the bat. The signal is much better at night. One thing
I am gonna guess at
here is the little antenna looking deal on the LCD of the clock that shows
signal strength. I dont
see anything in the clock that is a signal strength circuit, just the
module. So here is my therory:
You have you software look for the start of the WWVB signal (2 80ms
pulses). If your code is such
that it is a 'state engine', that is if you receive a pulse that is not
acceptable within the guidelines
of the NIST time code, then you must start back at the beginning state,
then the amount of acceptable pulses
that you do receive succesively will indicate a relative signal strength.
You must have a minute worth of acceptable pulses, after the start of the
time code signal, in order to
obtain all the info you need to set a clock. The signal is being
transmitted at 1 baud or 1 bit a second.
Anyway I am still working with this now and maybe I can come up with a
module to approach Parallax with
that includes the serial interface like the abandoned module did.
I havent put everything here and would answer any questions that I can from
my experience with this project.
Bob
At 08:15 AM 1/2/03 -0800, you wrote:
>Hi Rich,
>
>The Atomic Time Clock hasn't been available from us for over a year. If
my memory serves me
>correctly, the manufacturer of the product faced a discontinuance of one
of the main components and
>was no longer able to make the product. The name of the manufacturer is
Ultralink, but I don't have
>up to date contact information.
>
>Erik Wood
>
>Parallax, Inc.
>599 Menlo Dr., Suite #100
>Rocklin, CA 95765
>(916) 624-8333
>www.parallax.com
>
>
Original Message
>From: Richard Brull [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=jaBH0J7KWzeGg8NvFRDohj-Hiq7nP3bgnnRahOnWEYYi7mhCK2XUtpf9BdrtKfQybN7sKjIJvQ313fXv-iUnGQ]rich@c...[/url
>Sent: Thursday, January 02, 2003 7:25 AM
>To: basicstamps@yahoogroups.com
>Subject: RE: [noparse][[/noparse]basicstamps] Atomic Time
>
>
>Thanks Jonathon, neat idea I may have to give it a try although I was
>hoping Parallax or somebody still made or carried these modules I
>remember seeing an ad for them in Nuts & Volts, of course that was
>before I had a project that needed them. I am building a lighting
>control panel for a customer and I would like to set it up to
>automatically adjust for time changes.
>
>Rich
>
>
Original Message
>From: Jonathan Peakall [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=dXo6OtI1hHc1R43p4n1Ip1Ow2FNzhKVYCk7WdfSGZOyUz-C90TT-cGoz74qP5-hSSU-D5WqqVq-xOvksAx31CA]jpeakall@m...[/url
>Sent: Monday, December 30, 2002 6:45 PM
>To: basicstamps@yahoogroups.com
>Subject: Re: [noparse][[/noparse]basicstamps] Atomic Time
>
>Rich,
>
>I don't know if Parallax has one, but I have a cheapie method. It
>depends on
>if you need the actual time in data output or just synchronization. I
>made a
>little hillbilly device for my seismic recorder, so that I can synch
>events
>with other stations and calculate epicenter and so on. It actually goes
>to a
>data logging program on a PC not a stamp. Anyway, I took a WWBV clock
>movement, and put a photogate where the second hand passes it exactly on
>the
>12 o'clock spot. It is perfect for my needs, as it puts a nice mark on
>the
>data log every minute, so I can easily figure out what time an event
>occurred. Very cheap, reliable and resets and synchs itself
>automatically,
>accurate to less than a second, but only useful in some applications.
>I'm
>also guessing you could probe the WWBV clock board and directly tie the
>output to the stamp, eliminating the photogate and increasing the
>resolution
>to near perfect. Still no data output though.
>
>Jonathan
>
>www.madlabs.info
>
>
>
>
Original Message
>From: "Richard Brull" <rich@c...>
>To: <basicstamps@yahoogroups.com>
>Sent: Monday, December 30, 2002 1:06 PM
>Subject: [noparse][[/noparse]basicstamps] Atomic Time
>
>
>> Does Parallax still have an atomic time module for the Stamp? I didn't
>> see one on their site. If not does anyone where I could get one?
>>
>> Thanks,
>>
>> Rich
>>
>>
>> [noparse][[/noparse]Non-text portions of this message have been removed]
>>
>>
>> To UNSUBSCRIBE, just send mail to:
>> basicstamps-unsubscribe@yahoogroups.com
>> from the same email address that you subscribed. Text in the Subject
>and
>Body of the message will be ignored.
>>
>>
>> Your use of Yahoo! Groups is subject to
>http://docs.yahoo.com/info/terms/
>>
>>
>>
>>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject
>and Body of the message will be ignored.
>
>
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>http://docs.yahoo.com/info/terms/
>
>
>
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> basicstamps-unsubscribe@yahoogroups.com
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Body of the message will
>be ignored.
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>
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>
>
>
>
>[noparse][[/noparse]Non-text portions of this message have been removed]
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
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>
>
>
manufacturers:
http://www.boulder.nist.gov/timefreq/general/receiverlist.htm
Someone had also mentioned hacking one of those analog atomic clocks and
using the sweep hand to mark each second. I would check the documentation
carefully before buying any of these clocks -- some of the clocks without an
external antenna connection only attempt to acquire the time signal at
night, when the reception is best. The rest of the time the clock is only as
accurate as its internal timebase.
Original Message
> I was asking Parallax at COMDEX about this and thats when I found they no
> longer had the module. I have been working in my present project with
> atomic clock stuff and WWVB. This is what I can tell you.
> If you go to this link:
>
> http://www.maplin.co.uk
>
> and do a search for the following items:
>
> MK68Y (The module)
>
> MK72P (The antenna)
>
> You will see what the module and antenna look like. They sell these parts
> for very high prices. No thanks.
>
> The 4 main connections on the module are power, ground, module on-off, and
> digital signal.
> The digital signal is the demodulated 60khz signal transmitted from WWVB
in
> Colorado.
>
> There is also a place for the antenna to tack on the module as well.
>
> You can find info on this and the transmision specs here:
>
> http://www.boulder.nist.gov/timefreq/stations/wwvb.htm
>
> Since the signal is so weak, it is best to use an antenna with a ferrite
core.
>
> If you go buy a cheap atomic clock (8.00 on eBay or 12.00 at WalMart) then
> you can crack it
> open and start mining for parts. I know its basically destroying a
> perfectly good clock but
> you can feel better about it justifying it in the name of science. You
only
> need to cannibilize
> 2 pieces anyway and if you are careful you could replace them back and the
> clock would function
> fine again anyway. (Voice of experience). The 2 parts you grab are the
> ferrite antenna which is
> all ready with capacitor attached and tuned to 60khz. Believe me, winding
> your own is a pain in
> the ***. The other part you want is the 4 connector module. It looks very
> similar to the pic at
> the Maplin site listed above.
>
> You can take these pieces and slap them on a breadboard. Measure the power
> at the module while
> it is still in the clock if you can because it has a low operating
voltage.
> You can hook the
> digital out to an oscilliscope and see the most unpredictible signal you
> ever saw. Its not like
> the pretty bit-code picture they show at the NIST site. This is because
> the signal is weak and has
> dropouts. Thats why some atomic clocks (radio controlled - lets get that
> straight) wont even set
> themselves right off the bat. The signal is much better at night. One
thing
> I am gonna guess at
> here is the little antenna looking deal on the LCD of the clock that shows
> signal strength. I dont
> see anything in the clock that is a signal strength circuit, just the
> module. So here is my therory:
>
> You have you software look for the start of the WWVB signal (2 80ms
> pulses). If your code is such
> that it is a 'state engine', that is if you receive a pulse that is not
> acceptable within the guidelines
> of the NIST time code, then you must start back at the beginning state,
> then the amount of acceptable pulses
> that you do receive succesively will indicate a relative signal strength.
>
> You must have a minute worth of acceptable pulses, after the start of the
> time code signal, in order to
> obtain all the info you need to set a clock. The signal is being
> transmitted at 1 baud or 1 bit a second.
> Anyway I am still working with this now and maybe I can come up with a
> module to approach Parallax with
> that includes the serial interface like the abandoned module did.
>
> I havent put everything here and would answer any questions that I can
from
> my experience with this project.
>
> Bob
>
> At 08:15 AM 1/2/03 -0800, you wrote:
> >Hi Rich,
> >
> >The Atomic Time Clock hasn't been available from us for over a year. If
> my memory serves me
> >correctly, the manufacturer of the product faced a discontinuance of one
> of the main components and
> >was no longer able to make the product. The name of the manufacturer is
> Ultralink, but I don't have
> >up to date contact information.
> >
> >Erik Wood
> >
> >Parallax, Inc.
> >599 Menlo Dr., Suite #100
> >Rocklin, CA 95765
> >(916) 624-8333
> >www.parallax.com
> >
> >
Original Message
> >From: Richard Brull [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Ir6tZRKaxQlP57FyzoMe7cc1--ad17ENx2U2fdPsd31Pio_InDlN7Uv_ff3GixxoXnDMtmkqRmcQPH_xFA]rich@c...[/url
> >Sent: Thursday, January 02, 2003 7:25 AM
> >To: basicstamps@yahoogroups.com
> >Subject: RE: [noparse][[/noparse]basicstamps] Atomic Time
> >
> >
> >Thanks Jonathon, neat idea I may have to give it a try although I was
> >hoping Parallax or somebody still made or carried these modules I
> >remember seeing an ad for them in Nuts & Volts, of course that was
> >before I had a project that needed them. I am building a lighting
> >control panel for a customer and I would like to set it up to
> >automatically adjust for time changes.
> >
> >Rich
> >
> >
Original Message
> >From: Jonathan Peakall [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=MuHE3jwRPTKrRWUoC_0b9GOjLRHPJDFsUya06S0ZY19cJO7Z6w0Nn81qkFKUWV2HfS1CgczNxo34UnWk-ovj]jpeakall@m...[/url
> >Sent: Monday, December 30, 2002 6:45 PM
> >To: basicstamps@yahoogroups.com
> >Subject: Re: [noparse][[/noparse]basicstamps] Atomic Time
> >
> >Rich,
> >
> >I don't know if Parallax has one, but I have a cheapie method. It
> >depends on
> >if you need the actual time in data output or just synchronization. I
> >made a
> >little hillbilly device for my seismic recorder, so that I can synch
> >events
> >with other stations and calculate epicenter and so on. It actually goes
> >to a
> >data logging program on a PC not a stamp. Anyway, I took a WWBV clock
> >movement, and put a photogate where the second hand passes it exactly on
> >the
> >12 o'clock spot. It is perfect for my needs, as it puts a nice mark on
> >the
> >data log every minute, so I can easily figure out what time an event
> >occurred. Very cheap, reliable and resets and synchs itself
> >automatically,
> >accurate to less than a second, but only useful in some applications.
> >I'm
> >also guessing you could probe the WWBV clock board and directly tie the
> >output to the stamp, eliminating the photogate and increasing the
> >resolution
> >to near perfect. Still no data output though.
> >
> >Jonathan
> >
> >www.madlabs.info
> >
> >
> >
> >
Original Message
> >From: "Richard Brull" <rich@c...>
> >To: <basicstamps@yahoogroups.com>
> >Sent: Monday, December 30, 2002 1:06 PM
> >Subject: [noparse][[/noparse]basicstamps] Atomic Time
> >
> >
> >> Does Parallax still have an atomic time module for the Stamp? I didn't
> >> see one on their site. If not does anyone where I could get one?
> >>
> >> Thanks,
> >>
> >> Rich
> >>
> >>
> >> [noparse][[/noparse]Non-text portions of this message have been removed]
> >>
> >>
> >> To UNSUBSCRIBE, just send mail to:
> >> basicstamps-unsubscribe@yahoogroups.com
> >> from the same email address that you subscribed. Text in the Subject
> >and
> >Body of the message will be ignored.
> >>
> >>
> >> Your use of Yahoo! Groups is subject to
> >http://docs.yahoo.com/info/terms/
> >>
> >>
> >>
> >>
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> >from the same email address that you subscribed. Text in the Subject
> >and Body of the message will be ignored.
> >
> >
> >Your use of Yahoo! Groups is subject to
> >http://docs.yahoo.com/info/terms/
> >
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> >from the same email address that you subscribed. Text in the Subject and
> Body of the message will
> >be ignored.
> >
> >
> >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> >
> >
> >
> >
> >[noparse][[/noparse]Non-text portions of this message have been removed]
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> >from the same email address that you subscribed. Text in the Subject and
> Body of the message will be ignored.
> >
> >
> >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> >
> >
> >
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
I have one of those analog atomic time clocks and was wondering how often
does it receive the WWVB signal.
Gene
P.S. It's a hoot to watch it on the DST change twice a year!
Give me a cup of coffee without cream; sorry, you'll have to take it without
milk, we don't have cream.
Original Message
From: Rodent [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=_93t_WKqrKNa3GpffDMno9G1h_EFzq-0x1DlpktpLOqd1t5u-4pvriBbX9LJoUiEvgkprEnsyoIHVMjjp70]daweasel@s...[/url
Sent: Thursday, January 02, 2003 5:02 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Atomic Time
I found this while scanning the WWVB site -- a list of receiver
manufacturers:
http://www.boulder.nist.gov/timefreq/general/receiverlist.htm
Someone had also mentioned hacking one of those analog atomic clocks and
using the sweep hand to mark each second. I would check the documentation
carefully before buying any of these clocks -- some of the clocks without an
external antenna connection only attempt to acquire the time signal at
night, when the reception is best. The rest of the time the clock is only as
accurate as its internal timebase.
Original Message
> I was asking Parallax at COMDEX about this and thats when I found they no
> longer had the module. I have been working in my present project with
> atomic clock stuff and WWVB. This is what I can tell you.
> If you go to this link:
>
> http://www.maplin.co.uk
>
> and do a search for the following items:
>
> MK68Y (The module)
>
> MK72P (The antenna)
>
> You will see what the module and antenna look like. They sell these parts
> for very high prices. No thanks.
>
> The 4 main connections on the module are power, ground, module on-off, and
> digital signal.
> The digital signal is the demodulated 60khz signal transmitted from WWVB
in
> Colorado.
>
> There is also a place for the antenna to tack on the module as well.
>
> You can find info on this and the transmision specs here:
>
> http://www.boulder.nist.gov/timefreq/stations/wwvb.htm
>
> Since the signal is so weak, it is best to use an antenna with a ferrite
core.
>
> If you go buy a cheap atomic clock (8.00 on eBay or 12.00 at WalMart) then
> you can crack it
> open and start mining for parts. I know its basically destroying a
> perfectly good clock but
> you can feel better about it justifying it in the name of science. You
only
> need to cannibilize
> 2 pieces anyway and if you are careful you could replace them back and the
> clock would function
> fine again anyway. (Voice of experience). The 2 parts you grab are the
> ferrite antenna which is
> all ready with capacitor attached and tuned to 60khz. Believe me, winding
> your own is a pain in
> the ***. The other part you want is the 4 connector module. It looks very
> similar to the pic at
> the Maplin site listed above.
>
> You can take these pieces and slap them on a breadboard. Measure the power
> at the module while
> it is still in the clock if you can because it has a low operating
voltage.
> You can hook the
> digital out to an oscilliscope and see the most unpredictible signal you
> ever saw. Its not like
> the pretty bit-code picture they show at the NIST site. This is because
> the signal is weak and has
> dropouts. Thats why some atomic clocks (radio controlled - lets get that
> straight) wont even set
> themselves right off the bat. The signal is much better at night. One
thing
> I am gonna guess at
> here is the little antenna looking deal on the LCD of the clock that shows
> signal strength. I dont
> see anything in the clock that is a signal strength circuit, just the
> module. So here is my therory:
>
> You have you software look for the start of the WWVB signal (2 80ms
> pulses). If your code is such
> that it is a 'state engine', that is if you receive a pulse that is not
> acceptable within the guidelines
> of the NIST time code, then you must start back at the beginning state,
> then the amount of acceptable pulses
> that you do receive succesively will indicate a relative signal strength.
>
> You must have a minute worth of acceptable pulses, after the start of the
> time code signal, in order to
> obtain all the info you need to set a clock. The signal is being
> transmitted at 1 baud or 1 bit a second.
> Anyway I am still working with this now and maybe I can come up with a
> module to approach Parallax with
> that includes the serial interface like the abandoned module did.
>
> I havent put everything here and would answer any questions that I can
from
> my experience with this project.
>
> Bob
>
> At 08:15 AM 1/2/03 -0800, you wrote:
> >Hi Rich,
> >
> >The Atomic Time Clock hasn't been available from us for over a year. If
> my memory serves me
> >correctly, the manufacturer of the product faced a discontinuance of one
> of the main components and
> >was no longer able to make the product. The name of the manufacturer is
> Ultralink, but I don't have
> >up to date contact information.
> >
> >Erik Wood
> >
> >Parallax, Inc.
> >599 Menlo Dr., Suite #100
> >Rocklin, CA 95765
> >(916) 624-8333
> >www.parallax.com
> >
> >
Original Message
> >From: Richard Brull [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=1oslMIDvaXxDuDSdLa2POsK9QatA7iBykQglOI03PDfc21HnM32jyN9JjK1yPF2OATqQ_O_VqG-Z6pIwKvgdNdo]rich@c...[/url
> >Sent: Thursday, January 02, 2003 7:25 AM
> >To: basicstamps@yahoogroups.com
> >Subject: RE: [noparse][[/noparse]basicstamps] Atomic Time
> >
> >
> >Thanks Jonathon, neat idea I may have to give it a try although I was
> >hoping Parallax or somebody still made or carried these modules I
> >remember seeing an ad for them in Nuts & Volts, of course that was
> >before I had a project that needed them. I am building a lighting
> >control panel for a customer and I would like to set it up to
> >automatically adjust for time changes.
> >
> >Rich
> >
> >
Original Message
> >From: Jonathan Peakall [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=-hfzsv8bA7RKjsHWFSA4GcP8FqkLavjAVt6AW66Drk-Q9kVLMY1WvjxdxmbsLaOLMWS-UyHBNuPK-_mzCGo]jpeakall@m...[/url
> >Sent: Monday, December 30, 2002 6:45 PM
> >To: basicstamps@yahoogroups.com
> >Subject: Re: [noparse][[/noparse]basicstamps] Atomic Time
> >
> >Rich,
> >
> >I don't know if Parallax has one, but I have a cheapie method. It
> >depends on
> >if you need the actual time in data output or just synchronization. I
> >made a
> >little hillbilly device for my seismic recorder, so that I can synch
> >events
> >with other stations and calculate epicenter and so on. It actually goes
> >to a
> >data logging program on a PC not a stamp. Anyway, I took a WWBV clock
> >movement, and put a photogate where the second hand passes it exactly on
> >the
> >12 o'clock spot. It is perfect for my needs, as it puts a nice mark on
> >the
> >data log every minute, so I can easily figure out what time an event
> >occurred. Very cheap, reliable and resets and synchs itself
> >automatically,
> >accurate to less than a second, but only useful in some applications.
> >I'm
> >also guessing you could probe the WWBV clock board and directly tie the
> >output to the stamp, eliminating the photogate and increasing the
> >resolution
> >to near perfect. Still no data output though.
> >
> >Jonathan
> >
> >www.madlabs.info
> >
> >
> >
> >
Original Message
> >From: "Richard Brull" <rich@c...>
> >To: <basicstamps@yahoogroups.com>
> >Sent: Monday, December 30, 2002 1:06 PM
> >Subject: [noparse][[/noparse]basicstamps] Atomic Time
> >
> >
> >> Does Parallax still have an atomic time module for the Stamp? I didn't
> >> see one on their site. If not does anyone where I could get one?
> >>
> >> Thanks,
> >>
> >> Rich
> >>
> >>
> >> [noparse][[/noparse]Non-text portions of this message have been removed]
> >>
> >>
> >> To UNSUBSCRIBE, just send mail to:
> >> basicstamps-unsubscribe@yahoogroups.com
> >> from the same email address that you subscribed. Text in the Subject
> >and
> >Body of the message will be ignored.
> >>
> >>
> >> Your use of Yahoo! Groups is subject to
> >http://docs.yahoo.com/info/terms/
> >>
> >>
> >>
> >>
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> >from the same email address that you subscribed. Text in the Subject
> >and Body of the message will be ignored.
> >
> >
> >Your use of Yahoo! Groups is subject to
> >http://docs.yahoo.com/info/terms/
> >
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> >from the same email address that you subscribed. Text in the Subject and
> Body of the message will
> >be ignored.
> >
> >
> >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> >
> >
> >
> >
> >[noparse][[/noparse]Non-text portions of this message have been removed]
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> >from the same email address that you subscribed. Text in the Subject and
> Body of the message will be ignored.
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> >
> >
> >
>
>
>
> To UNSUBSCRIBE, just send mail to:
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My clocks say they receive signal 4 times a day although I can't verify it
because once
the inital sync happens, the antenna LCD pic stays full as if to indicate
lock.
If you make your own from a ready made clock and use the module, it will
continue to receive
as long as you apply the 'module on' signal.
I have looked at that receiver list from NIST before but it all came back
to the same issue
of having to saw off an arm or leg for price. I would love to get my hands
on those little
antennas that are in the wristwatch though [noparse]:)[/noparse]
Bob
At 05:07 PM 1/2/03 -0600, you wrote:
>Hi,
>
>I have one of those analog atomic time clocks and was wondering how often
>does it receive the WWVB signal.
>
>Gene
>
>P.S. It's a hoot to watch it on the DST change twice a year!
>
>
>Give me a cup of coffee without cream; sorry, you'll have to take it without
>milk, we don't have cream.
>
>
>
Original Message
>From: Rodent [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=kacBnOYtYQef42iLm27PKjV9ha3-Wj31OgAAgJnCzd6mZp9fo8n_RCMZ4kMkn4M5tCaiHdI6Fv9Idu9iCw]daweasel@s...[/url
>Sent: Thursday, January 02, 2003 5:02 PM
>To: basicstamps@yahoogroups.com
>Subject: Re: [noparse][[/noparse]basicstamps] Atomic Time
>
>
>I found this while scanning the WWVB site -- a list of receiver
>manufacturers:
>
>http://www.boulder.nist.gov/timefreq/general/receiverlist.htm
>
>Someone had also mentioned hacking one of those analog atomic clocks and
>using the sweep hand to mark each second. I would check the documentation
>carefully before buying any of these clocks -- some of the clocks without an
>external antenna connection only attempt to acquire the time signal at
>night, when the reception is best. The rest of the time the clock is only as
>accurate as its internal timebase.
>
>
Original Message
>
>> I was asking Parallax at COMDEX about this and thats when I found they no
>> longer had the module. I have been working in my present project with
>> atomic clock stuff and WWVB. This is what I can tell you.
>> If you go to this link:
>>
>> http://www.maplin.co.uk
>>
>> and do a search for the following items:
>>
>> MK68Y (The module)
>>
>> MK72P (The antenna)
>>
>> You will see what the module and antenna look like. They sell these parts
>> for very high prices. No thanks.
>>
>> The 4 main connections on the module are power, ground, module on-off, and
>> digital signal.
>> The digital signal is the demodulated 60khz signal transmitted from WWVB
>in
>> Colorado.
>>
>> There is also a place for the antenna to tack on the module as well.
>>
>> You can find info on this and the transmision specs here:
>>
>> http://www.boulder.nist.gov/timefreq/stations/wwvb.htm
>>
>> Since the signal is so weak, it is best to use an antenna with a ferrite
>core.
>>
>> If you go buy a cheap atomic clock (8.00 on eBay or 12.00 at WalMart) then
>> you can crack it
>> open and start mining for parts. I know its basically destroying a
>> perfectly good clock but
>> you can feel better about it justifying it in the name of science. You
>only
>> need to cannibilize
>> 2 pieces anyway and if you are careful you could replace them back and the
>> clock would function
>> fine again anyway. (Voice of experience). The 2 parts you grab are the
>> ferrite antenna which is
>> all ready with capacitor attached and tuned to 60khz. Believe me, winding
>> your own is a pain in
>> the ***. The other part you want is the 4 connector module. It looks very
>> similar to the pic at
>> the Maplin site listed above.
>>
>> You can take these pieces and slap them on a breadboard. Measure the power
>> at the module while
>> it is still in the clock if you can because it has a low operating
>voltage.
>> You can hook the
>> digital out to an oscilliscope and see the most unpredictible signal you
>> ever saw. Its not like
>> the pretty bit-code picture they show at the NIST site. This is because
>> the signal is weak and has
>> dropouts. Thats why some atomic clocks (radio controlled - lets get that
>> straight) wont even set
>> themselves right off the bat. The signal is much better at night. One
>thing
>> I am gonna guess at
>> here is the little antenna looking deal on the LCD of the clock that shows
>> signal strength. I dont
>> see anything in the clock that is a signal strength circuit, just the
>> module. So here is my therory:
>>
>> You have you software look for the start of the WWVB signal (2 80ms
>> pulses). If your code is such
>> that it is a 'state engine', that is if you receive a pulse that is not
>> acceptable within the guidelines
>> of the NIST time code, then you must start back at the beginning state,
>> then the amount of acceptable pulses
>> that you do receive succesively will indicate a relative signal strength.
>>
>> You must have a minute worth of acceptable pulses, after the start of the
>> time code signal, in order to
>> obtain all the info you need to set a clock. The signal is being
>> transmitted at 1 baud or 1 bit a second.
>> Anyway I am still working with this now and maybe I can come up with a
>> module to approach Parallax with
>> that includes the serial interface like the abandoned module did.
>>
>> I havent put everything here and would answer any questions that I can
>from
>> my experience with this project.
>>
>> Bob
>>
>> At 08:15 AM 1/2/03 -0800, you wrote:
>> >Hi Rich,
>> >
>> >The Atomic Time Clock hasn't been available from us for over a year. If
>> my memory serves me
>> >correctly, the manufacturer of the product faced a discontinuance of one
>> of the main components and
>> >was no longer able to make the product. The name of the manufacturer is
>> Ultralink, but I don't have
>> >up to date contact information.
>> >
>> >Erik Wood
>> >
>> >Parallax, Inc.
>> >599 Menlo Dr., Suite #100
>> >Rocklin, CA 95765
>> >(916) 624-8333
>> >www.parallax.com
>> >
>> >
Original Message
>> >From: Richard Brull [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=tzbKmyJI-SjxI1iPgg4MW7q4oqmz-sdcc-SEIgcvv7DeldlwMpLsJ581mdcDkY5ceVVD8EYlaGuH61sZ3MtfV0A]rich@c...[/url
>> >Sent: Thursday, January 02, 2003 7:25 AM
>> >To: basicstamps@yahoogroups.com
>> >Subject: RE: [noparse][[/noparse]basicstamps] Atomic Time
>> >
>> >
>> >Thanks Jonathon, neat idea I may have to give it a try although I was
>> >hoping Parallax or somebody still made or carried these modules I
>> >remember seeing an ad for them in Nuts & Volts, of course that was
>> >before I had a project that needed them. I am building a lighting
>> >control panel for a customer and I would like to set it up to
>> >automatically adjust for time changes.
>> >
>> >Rich
>> >
>> >
Original Message
>> >From: Jonathan Peakall [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=NYU_xH5ky-494hQl9QzSmFTHr7Y3EubKEoxD2Y5hu6B9AM334iTDYNL9AnGtXRIR-A1qFbyE3qMshE0mdA]jpeakall@m...[/url
>> >Sent: Monday, December 30, 2002 6:45 PM
>> >To: basicstamps@yahoogroups.com
>> >Subject: Re: [noparse][[/noparse]basicstamps] Atomic Time
>> >
>> >Rich,
>> >
>> >I don't know if Parallax has one, but I have a cheapie method. It
>> >depends on
>> >if you need the actual time in data output or just synchronization. I
>> >made a
>> >little hillbilly device for my seismic recorder, so that I can synch
>> >events
>> >with other stations and calculate epicenter and so on. It actually goes
>> >to a
>> >data logging program on a PC not a stamp. Anyway, I took a WWBV clock
>> >movement, and put a photogate where the second hand passes it exactly on
>> >the
>> >12 o'clock spot. It is perfect for my needs, as it puts a nice mark on
>> >the
>> >data log every minute, so I can easily figure out what time an event
>> >occurred. Very cheap, reliable and resets and synchs itself
>> >automatically,
>> >accurate to less than a second, but only useful in some applications.
>> >I'm
>> >also guessing you could probe the WWBV clock board and directly tie the
>> >output to the stamp, eliminating the photogate and increasing the
>> >resolution
>> >to near perfect. Still no data output though.
>> >
>> >Jonathan
>> >
>> >www.madlabs.info
>> >
>> >
>> >
>> >
Original Message
>> >From: "Richard Brull" <rich@c...>
>> >To: <basicstamps@yahoogroups.com>
>> >Sent: Monday, December 30, 2002 1:06 PM
>> >Subject: [noparse][[/noparse]basicstamps] Atomic Time
>> >
>> >
>> >> Does Parallax still have an atomic time module for the Stamp? I didn't
>> >> see one on their site. If not does anyone where I could get one?
>> >>
>> >> Thanks,
>> >>
>> >> Rich
>> >>
>> >>
>> >> [noparse][[/noparse]Non-text portions of this message have been removed]
>> >>
>> >>
>> >> To UNSUBSCRIBE, just send mail to:
>> >> basicstamps-unsubscribe@yahoogroups.com
>> >> from the same email address that you subscribed. Text in the Subject
>> >and
>> >Body of the message will be ignored.
>> >>
>> >>
>> >> Your use of Yahoo! Groups is subject to
>> >http://docs.yahoo.com/info/terms/
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>> >To UNSUBSCRIBE, just send mail to:
>> > basicstamps-unsubscribe@yahoogroups.com
>> >from the same email address that you subscribed. Text in the Subject
>> >and Body of the message will be ignored.
>> >
>> >
>> >Your use of Yahoo! Groups is subject to
>> >http://docs.yahoo.com/info/terms/
>> >
>> >
>> >
>> >To UNSUBSCRIBE, just send mail to:
>> > basicstamps-unsubscribe@yahoogroups.com
>> >from the same email address that you subscribed. Text in the Subject and
>> Body of the message will
>> >be ignored.
>> >
>> >
>> >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>> >
>> >
>> >
>> >
>> >[noparse][[/noparse]Non-text portions of this message have been removed]
>> >
>> >
>> >To UNSUBSCRIBE, just send mail to:
>> > basicstamps-unsubscribe@yahoogroups.com
>> >from the same email address that you subscribed. Text in the Subject and
>> Body of the message will be ignored.
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>> >
>> >
>> >
>>
>>
>>
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>Body of the message will be ignored.
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>>
>
>
>
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built in. They think it's for setting the time on a PC, but there is
no reason you couldn't use this with a stamp.
Then there must be some kind of WWV receiver IC chips out there someplace.
I wonder what all the atomic clocks are using then.
Original Message
From: Mphil <font_mark@y...> [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=TjuHloMMnPu6KqF3LpTXKI7boIAVx8vxBVeTllYxCWvmEOJdJXBEODIuJDmKTl3ykG3lh9KeLXnTScQ]font_mark@y...[/url
Sent: Thursday, January 09, 2003 1:55 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: Atomic Time
The folks at www.arctime.com have a wwv clock that has a serial port
built in. They think it's for setting the time on a PC, but there is
no reason you couldn't use this with a stamp.
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
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Original Message
From: Mphil <font_mark@y...> [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ffb6RFGQgt4sCeDdx_UGdYLVKo2bAWpckZClRXnyMuTgkZCWNTLvHfPelBEReYsPC5VIPKz0peumiQ]font_mark@y...[/url
Sent: Thursday, January 09, 2003 2:55 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: Atomic Time
The folks at www.arctime.com have a wwv clock that has a serial port
built in. They think it's for setting the time on a PC, but there is
no reason you couldn't use this with a stamp.
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[noparse][[/noparse]Non-text portions of this message have been removed]
www.galleon.eu.com that sells the OEM receivers with an rs232 output. I
will probably purchase one to try out with the Stamp.
Here is the pricing they sent me:
Antenna = 8.12
EM2s = 23.98
MCM RS232 = 26.92
All for quantities of one.
Thanks for all the help,
Rich
Original Message
From: Earl Bollinger [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ookl3Q6u0zOkaekJB-dkwivL8QBNJhirOJy8rCXHzt11-KZnF1So6qB8W-ejzckIqiH7u0be5G_s0nDzfJ2U]earlwbollinger@a...[/url
Sent: Thursday, January 09, 2003 5:56 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] Re: Atomic Time
If they have all these different kinds of clocks that use WWV.
Then there must be some kind of WWV receiver IC chips out there
someplace.
I wonder what all the atomic clocks are using then.
Original Message
From: Mphil <font_mark@y...> [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=-k8rcO5w4qBA9nz7ptjHxVw3ZPENcd7GnRPKW7JYJfnNAKti0gLI0rMer5TkYbP13Ghly3tT7jjBCg]font_mark@y...[/url
Sent: Thursday, January 09, 2003 1:55 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: Atomic Time
The folks at www.arctime.com have a wwv clock that has a serial port
built in. They think it's for setting the time on a PC, but there is
no reason you couldn't use this with a stamp.
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got cheap atomic clocks and canibilized them. I robbed the antenna (already
tuned)
and the EM2s type module (they all have same pinouts as I have seen). Then
all you
have to do is bring the pulses into the stamp from the digital out of the
module
and measure the pulse width and match up to the time code protocol that
NIST provides.
The only thing different is that there is no RS-232, but once you get the
time in
who needs RS232?
Bob
At 08:38 AM 1/10/03 -0600, you wrote:
>After some searching on the web I did find this company
>www.galleon.eu.com that sells the OEM receivers with an rs232 output. I
>will probably purchase one to try out with the Stamp.
>
>Here is the pricing they sent me:
>
>Antenna = 8.12
>EM2s = 23.98
>MCM RS232 = 26.92
>
>All for quantities of one.
>
>Thanks for all the help,
>
>Rich
>
>
Original Message
>From: Earl Bollinger [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=LWUYPymr4G2lj_PcZidod5yQou6P4GaOsOl3bR1jC25sIqBsnZvPtb6DwRljA_h3b2ja4n8kHVp7dWOF5vFDXkg]earlwbollinger@a...[/url
>Sent: Thursday, January 09, 2003 5:56 AM
>To: basicstamps@yahoogroups.com
>Subject: RE: [noparse][[/noparse]basicstamps] Re: Atomic Time
>
>If they have all these different kinds of clocks that use WWV.
>Then there must be some kind of WWV receiver IC chips out there
>someplace.
>I wonder what all the atomic clocks are using then.
>
>
Original Message
>From: Mphil <font_mark@y...> [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=a29OazT64CzeXDR0L3iY74s1uCNTCZyjIx2OXJn0xW7oLYhAlFPutm5hINPUmSwSoO9XKeGni9V7vmLz6w]font_mark@y...[/url
>Sent: Thursday, January 09, 2003 1:55 AM
>To: basicstamps@yahoogroups.com
>Subject: [noparse][[/noparse]basicstamps] Re: Atomic Time
>
>
>The folks at www.arctime.com have a wwv clock that has a serial port
>built in. They think it's for setting the time on a PC, but there is
>no reason you couldn't use this with a stamp.
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject
>and
>Body of the message will be ignored.
>
>
>Your use of Yahoo! Groups is subject to
>http://docs.yahoo.com/info/terms/
>
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject
>and Body of the message will be ignored.
>
>
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>http://docs.yahoo.com/info/terms/
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
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Body of the message will be ignored.
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>
>
>
Thanks,
Warren
Original Message
From: tesla@i... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=nT_0YJN0vkpE5QO4cw9nDGOyOY53WsfnxVuPsvRO1K2l6WBdyxuVLo_Nrdr9tMjnCnmqK54xIw]tesla@i...[/url
Sent: Friday, January 10, 2003 8:45 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] Re: Atomic Time
This is what I had stated that the individual parts were so high. Thats why
I
got cheap atomic clocks and canibilized them. I robbed the antenna (already
tuned)
and the EM2s type module (they all have same pinouts as I have seen). Then
all you
have to do is bring the pulses into the stamp from the digital out of the
module
and measure the pulse width and match up to the time code protocol that
NIST provides.
The only thing different is that there is no RS-232, but once you get the
time in
who needs RS232?
Bob
At 08:38 AM 1/10/03 -0600, you wrote:
>After some searching on the web I did find this company
>www.galleon.eu.com that sells the OEM receivers with an rs232 output. I
>will probably purchase one to try out with the Stamp.
>
>Here is the pricing they sent me:
>
>Antenna = 8.12
>EM2s = 23.98
>MCM RS232 = 26.92
>
>All for quantities of one.
>
>Thanks for all the help,
>
>Rich
>
>
Original Message
>From: Earl Bollinger [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ASsFoqR9WxbL8TJqDGeGdIWYpEMDWUtK1tu9FQ32FOk8uGO6xzYV5MJ2IcCK9kDOBT_GNXvZGv2ZNcR1WvwUL07K]earlwbollinger@a...[/url
>Sent: Thursday, January 09, 2003 5:56 AM
>To: basicstamps@yahoogroups.com
>Subject: RE: [noparse][[/noparse]basicstamps] Re: Atomic Time
>
>If they have all these different kinds of clocks that use WWV.
>Then there must be some kind of WWV receiver IC chips out there
>someplace.
>I wonder what all the atomic clocks are using then.
>
>
Original Message
>From: Mphil <font_mark@y...> [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=-oCQvN9RjJGbBouKfl2VtjinJEA3SIamKbsuaz1R6Q91MXvBD58GORvZRdQ2i7JyEnS-9P78fstT3l-T0w]font_mark@y...[/url
>Sent: Thursday, January 09, 2003 1:55 AM
>To: basicstamps@yahoogroups.com
>Subject: [noparse][[/noparse]basicstamps] Re: Atomic Time
>
>
>The folks at www.arctime.com have a wwv clock that has a serial port
>built in. They think it's for setting the time on a PC, but there is
>no reason you couldn't use this with a stamp.
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject
>and
>Body of the message will be ignored.
>
>
>Your use of Yahoo! Groups is subject to
>http://docs.yahoo.com/info/terms/
>
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject
>and Body of the message will be ignored.
>
>
>Your use of Yahoo! Groups is subject to
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>
>
>
>To UNSUBSCRIBE, just send mail to:
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>
>
>
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