Here I found a complete "dead bug" style WWVB receiver project from 2017 on
YT.
#0001 WWVB Receiver Project - Part 1
https://youtu.be/zD_INHy3BBI
Donald Resor
N6KAW
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Perhaps this has been mention before, but I found the following document
while researching some details on WWVB and thought it might interest the
group:
https://www.kevincroissant.com/WWVB/WWVB_PTTI_2018.pdf
I know that Spectracom once made a WWVB Disciplined Oscillator in the form
On Sunday, March 14, 2021, 11:56:11 AM EDT, Jeffrey Pawlan
wrote:
> I have been using the new BPSK receiver for NIST. There are two strange
> things that perhaps others can explain.
I don't know if this has anything to do with what you are experiencing, but
WWVB is currently unde
it more for nostalgic reasons these days just because I like
it:-)
John Ackermann has some interesting observations on the 8164.
https://www.febo.com/time-freq/wwvb/spectracom/index.html
https://www.febo.com/time-freq/wwvb/spectracom/efc.html
Nigel GM8PZR
Perhaps this has been mention before
Hi all,
This is my first post to time-nuts, though I've been following the list for
a few years now. I've been reading the WWVB discussion over the past couple
days and keeping up as best as I can, and wanted to mention that I
presented at ION PTTI 2018 about microsecond level WWVB. I also
Not personally, but in the UK a company called Quarztlock made both MSF
(similar to WWVB) and 198kHz (a frequency-standard broadcast station) that
were popular frequency standards in labs.
They still exist but have replaced those products with Rubidium and GPS
based standards.
http
Here is what seems to be a circuit design to allow WWVB clock receivers work
with the current signal format.
2012 WWVB Receiver Modification
Modification makes homebrew receiver insensitive to WWVB's new
biphase-shifted time code.
http://www.maxmcarter.com/rubidium/2012_mod/
Donald Resor
N6KAW
On 11/2/20 6:59 PM, John C. Westmoreland, P.E. wrote:
Hello Time Nuts,
I have a question -
Has anyone been successful getting WWVB to decode using the example for
DCF77 and making the changes for WWVB?
Yes.
Maybe you mean other than me?
Chris
Looks like another wwvb remodulator has been built and a very nice writeup
by Doug. He also writes up issues of LED light interference and approaches
to solving that. Nice.
Link here
https://wa3dsp.org/spectracom_8170
The remodulator is a very simple way to make those old wwvb clocks work
I thought I would search in a different way for a WWVB signal generator
design. I found this item. While the designer explains it isn't as
accurate as WWVB it may be another starting point.
http://www.tauntek.com/wwvbgen-low-cost-wwvb-time-signal-generator.htm
Donald R. Resor Jr. T. W
For those still interested in GPS to WWVB simulation -- after trying a few
antenna designs I found that a 50-foot loop of #26 enameled wire stapled to the
rafters in the basement works quite well. Putting 35 ma (rms) of 60 kHz WWVB
signal through it lights up the house quite nicely. I don't
Hi
The gotcha with WWVB is correcting for the day / night ionosphere issues. Since
they are not
100% predictable, it’s not a real easy problem to solve. Toss on top of the the
ambiguous status
of WWV or WWVB ( = will it be there next year …. if so in what format ….)
there layers
Mike,
The BPSK format enhancement applies only to 60 kHz WWVB, not the
short-wave WWV in CO or WWVH in HI.
/tvb
On 9/20/2020 3:48 AM, Mike Feher wrote:
Hi Tom -
I wonder if WWVH is also sending in the new format for you guys on the west
coast, although you guys are closer to WWVB
Moin,
On Mon, 3 Dec 2018 18:11:30 -0800
"Tom Van Baak" wrote:
> At long last, a complete WWVB 60 kHz BPSK dev board is available:
>
> https://universal-solder.ca/product/everset-es100-cob-wwvb-60khz-bpsk-receiver-kit-with-2-antennas/
>
> Note it includes the a
Universal Solder has a Valentines day sale this weekend for up to 20% for
members. They sell the WWVB BPSK Atomic Clock Receiver Modules and accessories
for those interested.
https://www.universal-solder.ca/
Cheers
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time-nuts mailing list
As far as I know the only Ultra is still the original model 1235UA
stainless steel 12h analog wall clock. [1]
There are plenty of 24h WWVB clocks around but they all use the legacy
AM WWVB format. Since you live in NJ I can understand why you want to
use the new BPSK WWVB format. So here's
Hi Tom -
I wonder if WWVH is also sending in the new format for you guys on the west
coast, although you guys are closer to WWVB than I am, and the La Crosse
just works great. Regards - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
-Original Message
I was under the mistaken impression that WWV/WWVB had some type of
direct line to NIST in Boulder. However, when I toured the facility in
Fort Collins earlier this year, I learned otherwise. The signals and
carriers are derived/synced from "ordinary" HP (possibly some mo
> I wonder if anybody will market a GPS-to-WWVB translator?
> Dana
You can find lots of these projects on the web: in the time-nuts archives,
eevblog, hackaday, or sometimes completed multi-band kits (WWVB / DCF77 / JJY)
on eBay.
Search for a couple of words like signal wwvb sim
Currently, getting Daylight Savings Time status is easy using WWV or WWVB
since they have bits in the protocol marking status for the US, and in the
case of WWVB, impending change.
If both the HF and LF signals go away due to the proposed budget cuts, what
is the next simplest way (for something
Is there more of it? What I see makes no reference to WWVB.
Dana
On Fri, Aug 24, 2018 at 1:10 PM Graham / KE9H wrote:
> Here is the URL of a petition to maintain funding of WWV, WWVH, WWVB.
>
> Only currently at about 7 percent of the number required for a response
> from
time it was one of the most popular / capable WWVB clocks out there...
I'd love to have one.
-
> BTW, has anyone ever seen a WWVB-based clock that displays the year?
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To unsubscribe,
I have read several different articles where the WWVB phase shift is
eliminated by doubling the signal to 120 kHz. Several members of the
list have built these units.
Assume I build a circuit to double the incoming signal and use a schmitt
trigger to get a 120 kHz square wave. If I then divide
> On a WWVB setup you get 10âs of us ( yes microseconds) of movement at
> sunrise and sunset. You get as much as 10us between day and night.
Somehow, I was thinking that WWVB was ground wave and wouldn't be effected by
changes in the height of the ionosphere. Am I total
Thanks Tom, I forgot WWVH was HF only. - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
-Original Message-
From: time-nuts On Behalf Of Tom Van Baak
Sent: Sunday, September 20, 2020 7:06 AM
To: time-nuts@lists.febo.com
Subject: Re: [time-nuts] More ES100 / WWVB
I'm seeing more than 100mV p-p right now (7:09 PM) (2309 UTC) on the output of
my preamp from the east coast of New Jersey, 1622 miles east of WWVB.
During my early days of WWVB experimenting, I found the signal is easier to
spot (since it's buried in noise) if the scope's horizontal sweep
The generic WWVB receivers in radio-controlled clocks are essentially
TRF receivers using a 60kHz crystal as the tuned element.
David N1HAC
On 7/22/20 2:26 PM, Hal Murray wrote:
tsho...@gmail.com said:
I myself did some experimenting with a tuned loop antenna through a 60 kHz
crystal
Hi Folks,
I always like your discussions! Now I'd like to ask a question.
Has anyone designed and/or sold a "WWVB repeater" device? I can picture a
Raspberry Pi which had software to get NTP data or GPS-referenced time, and
a small 60 kHz transmitter, which would send the p
Hello to the group.
Had sometime to hook up the chronverter wwvb simulator.
Numbers of details.
The software and operation are clear.
Everything is easy to setup.
Bad news.
Though the system when set to wwvb puts out a signal on 60Khz its on off
keying.
WWVBs signal is reduced carrier by some 14db
On 8/30/18 8:15 AM, Mike Bafaro wrote:
According to what I have heard the 60KHz WWVB carrier is guaranteed accurate to
the atomic standard and is considered traceable. I remember when I was in the
Navy years ago I remember taking our unit's HP5245L for calibration and they
used a VLF
At long last, a complete WWVB 60 kHz BPSK dev board is available:
https://universal-solder.ca/product/everset-es100-cob-wwvb-60khz-bpsk-receiver-kit-with-2-antennas/
Note it includes the antenna(s). Also has links to documentation.
It would be very nice if a bunch of time nuts around
Hi
A lot depends on your antenna setup. You can also swamp out the incoming
WWVB signal…….
Bob
> On Oct 8, 2020, at 2:07 PM,
> wrote:
>
> I have read several different articles where the WWVB phase shift is
> eliminated by doubling the signal to 120 kHz. Several members of
Magnus,
Thanks for the manual pointer! A quick scan doesn't offer me much
insight to what the mod might be for (likely have to open it up as you
suggest). The basic unit gives you the option of phase-locking the
internal standard osc to WWVB with an output at .1, 1, 5, or 10 MHz , and
you
On 7/22/2020 7:35 AM, Rodger via time-nuts wrote:
Hey Ray,
Paul and I have a nice piece of code that generates the WWVB BPSK bit stream
using an Arduino and a ublox GPS module. (total cost under $30) You could
use this as a WWVB emulator while you're working on your code. Sorry, I
can't
They reduced the price by 20% but they want $19.40 for shipping. I
decided I didn't need the development kit. I ordered one of the AM WWVB
kits back in early Nov and the shipping charge was only $4.50.
Original Message
Subject: [time-nuts] WWVB BPSK Atomic Clock Receiver
When there was talk a few years ago about this service going away I found this
alternative: https://www.anishathalye.com/2016/12/26/micro-wwvb/
--
Sent with Tutanota, the secure & ad-free mailbox.
Dec 10, 2021, 15:54 by lawrence.bra...@gmail.com:
> Hi Folks,
>
>
>
>
Just a heads-up. Universal Solder has two different ES100 devices back in
stock.
https://universal-solder.ca/product/everset-es100-cob-wwvb-60khz-bpsk-receiver-kit-with-2-antennas/
https://universal-solder.ca/product/everset-es100-adk-v2-wwvb-bpsk-phase-modulation-receiver/
-Pat (KG5YPQ
tsho...@gmail.com said:
> I myself did some experimenting with a tuned loop antenna through a 60 kHz
> crystal bandpass hooked to a ...
What is the bandwidth of the WWVB signal?
What is the bandwidth of a crystal filter? (or probably, what are my choices,
and what do I get if I use a lo
FYI -- Universal Solder (https://www.universal-solder.ca) has
theApplication Development Kit for EverSet ES100-MOD WWVB receiver on
sale Nov 27/28 for 25% off = CDN$66.75 = US$51.34 shipping included.
Note that this price is only good for 2 days.
73 de Tom K3IO
--
This email has been
Good morning all,
Universal Solder is showing the ES-100 WWVB BPSK clock kits back in
stock. Just put me one on order. :)
<https://www.universal-solder.ca/product/canaduino-application-development-kit-with-everset-es100-mod-wwvb-bpsk-atomic-clock-receiver-module/>
Thanks much and 7
Forwarded Message
Subject:Re: [time-nuts] Re: local WWVB ?
Date: Sat, 11 Dec 2021 09:57:49 -0800
From: Alex Pummer
To: Attila Kinali
Hi Attila,
actually there are some repeaters, which do not generate their own
carrier, but just receive and amplifying re
Hi,
There are LF receivers available commercially today. See links below for one
vendor.
https://www.meinbergglobal.com/english/products/pci-express-dcf77-clock.htm
and even an USB version for the NIST signal.
https://www.meinbergglobal.com/english/products/usb-wwvb-clock.htm
Thanks for the heads up Tom! I ordered one and if it comes before the end
of the year I may have some time over the holidays to do acquisition test
from Maryland and maybe some cross-comparison with GPS PPS.
Here in Maryland I have somewhat unreliable reception on commercial
non-BPSK WWVB clocks
Wayne, there was a superb 2015 QEX article by KD2BD on his WWVB disciplined
frequency standard. Full article is online here:
http://www.arrl.org/files/file/QEX_Next_Issue/2015/Nov-Dec_2015/Magliacane.pdf
As a frequency standard I have no major disagreement with the PTTI article.
But the 100
Hi
After the passing of Clive Green HCD Research has taken over the Quartzlock
business mid 2016
Regards
Bernd DK1AG
> Not personally, but in the UK a company called Quarztlock made both MSF
(similar to WWVB) and 198kHz (a frequency-standard broadcast station) that
were popular freque
After some initial evaluation in December last year, I've done some more
work and prototyping with the ES100 WWVB chip+board from Universal Solder
in various clock applications. Most of my work uses an Arduino Nano for
processing.
What I like is that the ES100 puts out data in UTC, which
Thanks Tom!
John
On Sun, Sep 20, 2020 at 1:19 AM Tom Van Baak wrote:
> There were couple WWVB threads recently.
>
> One of the questions was if the La Crosse UltrAtomic 404-1235UA-SS wall
> clock is still the only WWVB clock that uses the new BPSK format. I
> learned that 3 diff
There were couple WWVB threads recently.
One of the questions was if the La Crosse UltrAtomic 404-1235UA-SS wall
clock is still the only WWVB clock that uses the new BPSK format. I
learned that 3 different companies made prototypes but only La Crosse
went to market. So at this point
I don't know if this post will work, but there is a simpler and cheaper way
to put time on your wrist.
A Casio Waveceptor Atomic Watch receives WWVB time from Fort Collins and
Rugby, England each night. It switches to and from DST automatically and is
generally accurate to within 1/10 second
mic Watch receives WWVB time from Fort Collins
> andRugby, England each night. It switches to and from DST
> automatically and isgenerally accurate to within 1/10 second. The
> battery is specified to lastfor 2 years, but both of my watches have
> gone much longer.
> The Wavecept
Hi
Again to re-go over what has been said in the past:
Unless they start filling the “extra” bits on the WWVB signal with something
(are they doing this ) the whole modulation pattern is predictable. Once
you know what time it is “now” what happens from then on can all be calculated.
I
Ray,
I'll answer your question as I've done this. The d-psk-r's intended use is
to remove the bpsk from the WWVB carrier for the purpose of allowing older
WWVB receivers to recover phase info from the carrier and it works very well
for that purpose. But, it can also be used, as you are trying
Hi Wayne,
Great to see you found my presentation!
The paper is available here:
https://www.kevincroissant.com/WWVB/WWVB_PTTI_2018_paper.pdf
I traveled to CO and met with NIST people there and gathered more data
then. We're planning to put out another paper soon (I'm finishing up my
bachelor's
. But the new pinout is right there on the silkscreening on the
breakout board which very nicely plugs into 0.1" perfboard or solderless
breadboard.
Gave it a quick spin this afternoon, it locked up with WWVB from the East
Coast USA in broad daylight, and I can report that the same Arduino code
works
Hey Ray,
Paul and I have a nice piece of code that generates the WWVB BPSK bit stream
using an Arduino and a ublox GPS module. (total cost under $30) You could
use this as a WWVB emulator while you're working on your code. Sorry, I
can't really help with your question about demodulating
Hello, if anyone is interested, here is the source code for an NTP SHM
driver for this hardware. Please note that I've only developed the code for
the first generation hardware, although to my knowledge the spec sheet
hasn't changed.
https://github.com/fiorenzo1963/es100-wwvb-refclock
ping
block;
nothing heard back so far.
Dana
Dana
On Thu, Aug 30, 2018 at 2:05 AM John Marvin wrote:
> I was under the mistaken impression that WWV/WWVB had some type of
> direct line to NIST in Boulder. However, when I toured the facility in
> Fort Collins earlier this year,
From: Craig Kirkpatrick
I do like the idea of a GPS to WWVB timecode radio transmitter. I think
that would sell well to folks on the fringe of coverage for WWVB such as
Florida, Hawaii, and Alaska or other parts of the globe. I’ve found the
real limitation to reception of WWVB is local
This guy has what looks like a well thought out design using a Sirf-Based
GPS and ATTiny44A chip to generate a signal to update his watch:
https://www.anishathalye.com/2016/12/26/micro-wwvb/
Unfortunately, he doesn't seem to have published a schematic or his source
code. But, he covers enough
and frequency measurement
Subject: [time-nuts] new WWVB BPSK dev board
At long last, a complete WWVB 60 kHz BPSK dev board is available:
https://universal-solder.ca/product/everset-es100-cob-wwvb-60khz-bpsk-receiv
er-kit-with-2-antennas/
Note it includes the antenna(s). Also has links
While everyone's been talking :-) , I recorded some WWVB IQ data for
folks to play with. You can download it from
http://febo.com/pages/wwvb/
The receiver ran at 48 ksps and was centered on 80 kHz (to allow a 20
kHz IF to move away from 0 Hz crud). The data was taken in early
afternoon
> That was the first time that I had seen an xy plot of WWV versus a
> stable crystal oscillator. It is even worse than I thought. I had to
> look up FRK to see that it is a rubidium standard. I talked to Jim
> Maxton the chief engineer of WWVB many times around 1995.
An xy
Wayne Holder wrote:
> Perhaps this has been mention before, but I found the following document
> while researching some details on WWVB and thought it might interest the
> group:
>
> https://www.kevincroissant.com/WWVB/WWVB_PTTI_2018.pdf
>
> I know that Spectracom once ma
Bob,
I am using a ferrite rod antenna for the receiver. No outside antenna.
Ray
Original Message
Subject: Re: [time-nuts] WWVB Dephaser Question
From: Bob kb8tq
Date: Thu, October 08, 2020 12:40 pm
To: Discussion of precise time and frequency measurement
Hi
A lot depends
Hi,
I got a bit curious, so I dug up the manual (Available from Orolia that
Spectracom is part of):
https://www.orolia.com/sites/default/files/document-files/8161_manual.pdf
It is apparent that the reference oscillator is actually free-running
but compared to the WWVB, so you manually tune
seller LaCrosse Technology.
greg, w9gb
==
Date: Sun, 20 Sep 2020 01:16:23 -0700
From: Tom Van Baak
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] More ES100 / WWVB BPSK chips
There were couple WWVB threads recently.
One of the questions was if the La Crosse
> Transmitting on the same frequency you are receiving on seems like
asking for troubles.
Same frequency, but you wouldn't do both at the same time. See, you
can't transmit AM WWVB until you first know what time it is. To get the
time you enable the ES100 and listen to BPSK WWVB.
time and frequency measurement
Subject: Re: [time-nuts] WWVB BPSK Atomic Clock Receiver Modules
They reduced the price by 20% but they want $19.40 for shipping. I
decided I didn't need the development kit. I ordered one of the AM WWVB
kits back in early Nov and the shipping charge was only $4.50
On Fri, 10 Dec 2021 15:54:55 -0500
"Lawrence Brandt" wrote:
> Has anyone designed and/or sold a "WWVB repeater" device? I can picture a
> Raspberry Pi which had software to get NTP data or GPS-referenced time, and
> a small 60 kHz transmitter, which would send
:54:55 -0500
"Lawrence Brandt" wrote:
Has anyone designed and/or sold a "WWVB repeater" device? I can
picture a
Raspberry Pi which had software to get NTP data or GPS-referenced
time, and
a small 60 kHz transmitter, which would send the proper WWVB timecode
data
to the se
That is a very impressive project.
-=Bryan=-
From: Robb via time-nuts
Sent: December 11, 2021 5:48 AM
To: Discussion of precise time and frequency measurement
Cc: Robb
Subject: [time-nuts] Re: local WWVB ?
When there was talk a few years ago about
There seem to be 2 :
https://petitions.whitehouse.gov/petition/proposed-shutdown-nists-wwv-and-wwvh-radio-stations
On Fri, Aug 24, 2018 at 8:44 PM, Dana Whitlow wrote:
> Is there more of it? What I see makes no reference to WWVB.
>
> Dana
>
>
> On Fri, Aug 24, 2018 at 1:1
Few moons ago, I was thinking about to connect little audio amp. with
attached usual WWVB ferrite antenna to the computer sound card. But I
was stack about how to modulate the signal using SoundCard libraries.
There is bunch of example how to generate sine or rectangles. The
question is how
Den 08-10-2020 kl. 20:07 skrev rcb...@atcelectronics.com:
I have read several different articles where the WWVB phase shift is
eliminated by doubling the signal to 120 kHz. Several members of the
list have built these units.
Assume I build a circuit to double the incoming signal and use a schmitt
Hi,
On 2020-10-05 11:20, Hal Murray wrote:
>> On a WWVB setup you get 10’s of us ( yes microseconds) of movement at
>> sunrise and sunset. You get as much as 10us between day and night.
> Somehow, I was thinking that WWVB was ground wave and wouldn't be effected by
> cha
On 10/5/20 3:59 AM, Magnus Danielson wrote:
Hi,
On 2020-10-05 11:20, Hal Murray wrote:
On a WWVB setup you get 10’s of us ( yes microseconds) of movement at
sunrise and sunset. You get as much as 10us between day and night.
Somehow, I was thinking that WWVB was ground wave and wouldn't
reference
for the WWV and WWVB transmitters at nearby Ft. Collins.
My question: how is that reference transferred from the NISTfacility to the WWV
/ WWVB transmitter site?
For some reason, I was under the impression that the referencefrequency for the
transmitters was locally generated at Ft
Sorry Bob. I meant to address this question to Paul.
"Things already accomplished by Chris in the wwvb AM receiver"
Is there a link to the AM receiver? Curious as to what that looks like.
Ray,
AB7HE
Original Message
Subject: Re: [time-nuts] WWVB teensy BPSK early e
I have 3 WWVB AM clocks that did not update DST overnight last night but one
that did and two BPSK clocks that did. Par for the course. The BPSK clocks
always set correctly within 10 minutes any time of day.I moved the clocks that
did not update into the garage out from under the aluminum
ke your discussions! Now I'd like to ask a question.
>
>
>
> Has anyone designed and/or sold a "WWVB repeater" device? I can picture a
> Raspberry Pi which had software to get NTP data or GPS-referenced time, and
> a small 60 kHz transmitter, which would send the proper W
Hi
Some of the folks doing this are running pretty massive antennas.
If you believe that the max signal from WWVB into your antenna
is around 1 mV and accept the 5V p-p number, then you would need
at least 74 db simply to have it not be equal to the transmit signal
at max signal levels. You
Hi
This is another of the many devices out there that pre-date the
“modern” 180 degree phase modulation approach on WWVB. Getting
one of these to run properly with the new modulation approach would take
some major mods …..
Bob
> On Oct 4, 2020, at 10:23 AM, Magnus Danielson wrote:
>
On 8/20/18 4:17 PM, ew via time-nuts wrote:
They're cutting a lot more than WWV/WWVH/WWVB - they're cutting 300+
folks in the labs doing all sorts of things.
Download the doc that Rick posted the link to, go to page NIST-24 and
start reading..
I don't know enough about how the labs
This is reminder that time-nuts is a technical mailing list. If you know
something about WWVB for sure, please post. If you're just guessing,
speculating, spreading rumors, or just ranting please don't make 1800 other
people read your posts.
I don't know where some of you get the idea
Fort Collins. :-)
Write a WWVB extension to KiwiSDR so you can try it all over the world ?
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be
Hello to the group.
You may remember the wwvb d-psk-r from 2015 or not. It still lives. That
said I would like obtain a Truetime DC-60 because its very easy to work on
internally.
Looking to build a test instrument for looking at the phase shift in the
message. I have done it for years using
osphere.
At VLF frequencies the wavelength is comparable to the height of the
ionosphere (D layer, 70-90 km above earth's surface), so we have
"waveguide propagation" in the "earth-ionosphere waveguide". The WWVB
phase changes occurring during sunrise and sunset transi
Hello Time Nuts,
Does anyone know which IC is used in the following:
(Note: Links have been sanitized by the list moderator.)
WWVB Receiver on Amazon
<https://www.amazon.com/Alano-Controlled-Modules-Receiver-Operating/dp/B07RYK5KN6>
It also comes with a clock module:
With Clock Module
The ES100 module sold by universal-solder.ca which Tom introduced us to a
couple years ago, is now End-Of-Life. "A new module is currently in
development".
https://www.universal-solder.ca/product/everset-es100-cob-wwvb-60khz-bpsk-receiver-kit-with-2-antennas/
I myself did some exp
t...@leapsecond.com said:
> Use a ES100 board [2] to receive the real BPSK WWVB and then generate a fake
> AM WWVB signal for the 24h clock to receive. That way you get the enhanced
> reception of the new format and the wide clock selection of the
Transmitting on the same freq
Just to be clear, is the ES-100 the receiver used in the Ultratomic clocks
made by Lacrosse?
Dana
On Thu, Oct 29, 2020 at 7:38 AM Ben Hall wrote:
> Good morning all,
>
> Universal Solder is showing the ES-100 WWVB BPSK clock kits back in
> stock. Just put me one on order. :)
&
of the $3 eBay OCXO’s, steer that with a DAC output … now you
have a WWVB GPSDO.
Indeed, if the Teensy needs 28 MHz, then the OCXO will not be quite as cheap.
Bob
> On Oct 31, 2020, at 1:47 PM, paul swed wrote:
>
> Hello to the group. Wanted to update the everyone thats interested in
My clocks did update and I have one that lags by 2 weeks due to its very
old internal software. It flips on the old date. WWVB was indeed down in
the noise this afternoon as John mentioned.
Regards
Paul
WB8TSL
On Sun, Mar 14, 2021 at 10:23 PM wrote:
> Strange, here in KS one of my 60 kHz clo
Robert DiRosario writes:
> I really wish NIST didn't add the BPSK modulation to WWVB. Increasing
> the transmitter power would have been a lot better, but I'm sure that
> would have cost a lot more then just changing the modulation.
One does not simply increase the transmit
Good morning group,
Wanted to see if anyone has a lead on a truetime 60-TR manual? I’m bidding on
one via eBay, not sure of its condition. It’s another WWVB receiver, so I will
likely have to do the conversion to make it compatible with the new modulation
scheme.
I’m also trying to figure
> Hi Wayne,
> Great to see you found my presentation!
> The paper is available here:
> https://www.kevincroissant.com/WWVB/WWVB_PTTI_2018_paper.pdf
Kevin, thanks for the link to the paper. I'd like to know more about how
correlation works and how you were able to use to to sync w
Thanks John.
Ray,
AB7HE
Original Message
Subject: Re: [time-nuts] WWVB teensy BPSK early experiments
From: "John C. Westmoreland, P.E."
Date: Sat, October 31, 2020 9:06 pm
To: Discussion of precise time and frequency measurement
Ray,
https://github.com/ch
Have you tried to contact the manufacturer? It sounds like something that
should be easy to fix and that he would want to fix.
Didier KO4BB
On Thu, Aug 23, 2018, 8:55 PM paul swed wrote:
> Hello to the group.
> Had sometime to hook up the chronverter wwvb simulator.
> Numbers o
. Oh hang on there thats
what the de-psk-r is. Just add 60 KHz. Actually depending on the clocks
cost as they get dropped maybe not a bad idea. Have fun with your system.
Regards
Paul
WB8TSL
On Sat, Oct 27, 2018 at 6:04 PM Andy Backus wrote:
> For those still interested in GPS to WWVB simulat
> GPS has no bits for Daylight Savings. As far as I know only WWV and WWVB
> have those bits. So for a clock displaying local time WWVB is the way to go.
WWVB's DST data is targeted at the US.
Does anybody know how many other places use the same rules? What does Canada
do?
Has a
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