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.
As such any of the WWVB clocks of quality/phase tracking do not lock and do
not decode.
I have not tried the cheap clocks yet that I suspect will work.
The actual carrier out is a healthy 0 dbm.
Some issues with commands and the system seeming to lock up requiring power
cycles.
With respect to the carrier. The chronverter is elegant in the fact that it
can generate the 60 KHz frequency and other LF signals. But I will need to
add an external 6 MHz oscillator divider and modulator if I want to use it
with the good receivers.
Adds power and complexity.
Regards
Paul
WB8TSL
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 paulswedb@gmail.com wrote:
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.
As such any of the WWVB clocks of quality/phase tracking do not lock and do
not decode.
I have not tried the cheap clocks yet that I suspect will work.
The actual carrier out is a healthy 0 dbm.
Some issues with commands and the system seeming to lock up requiring power
cycles.
With respect to the carrier. The chronverter is elegant in the fact that it
can generate the 60 KHz frequency and other LF signals. But I will need to
add an external 6 MHz oscillator divider and modulator if I want to use it
with the good receivers.
Adds power and complexity.
Regards
Paul
WB8TSL
time-nuts mailing list -- time-nuts@lists.febo.com
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http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.
Is there a schematic published for the Chronverter? I agree with Didier
that the
OOK issue *ought *to be pretty easy to fix, and I'd like to look into that
myself.
Dana
On Thu, Aug 23, 2018 at 9:00 PM Didier Juges shalimr9@gmail.com wrote:
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 paulswedb@gmail.com wrote:
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.
As such any of the WWVB clocks of quality/phase tracking do not lock and
do
not decode.
I have not tried the cheap clocks yet that I suspect will work.
The actual carrier out is a healthy 0 dbm.
Some issues with commands and the system seeming to lock up requiring
power
cycles.
With respect to the carrier. The chronverter is elegant in the fact that
it
can generate the 60 KHz frequency and other LF signals. But I will need
to
add an external 6 MHz oscillator divider and modulator if I want to use
it
with the good receivers.
Adds power and complexity.
Regards
Paul
WB8TSL
time-nuts mailing list -- time-nuts@lists.febo.com
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and follow the instructions there.
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and follow the instructions there.
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 like a microprocessor based clock)
to get DST information?
Neither NTP or GPS provide that information.
I have seen some websites with DST information, but decoding HTTP seems a
daunting task for a microprocessor clock.
--- Graham
==
Thank you for the responses.
I have not reached out to him yet. Want to see if there are other issues
and I can easily add an external 60 KHz source and modulator right now to
verify the other functionality.
There is no schematic nor source code its a 8 pin uproc chip and as such
has almost no IO. I can easily see a very simple fix but needs a change to
the code behavior. (The chip it self can not do the modulation function.
Thats why its OOK).
But if the carrier were left on there is a LED that blinks to the time code
sequence and that can drive a 1 transistor or diode modulator.
Regards
Paul
WB8TSL
On Fri, Aug 24, 2018 at 3:14 AM, Dana Whitlow k8yumdoober@gmail.com wrote:
Is there a schematic published for the Chronverter? I agree with Didier
that the
OOK issue *ought *to be pretty easy to fix, and I'd like to look into that
myself.
Dana
On Thu, Aug 23, 2018 at 9:00 PM Didier Juges shalimr9@gmail.com wrote:
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 paulswedb@gmail.com wrote:
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.
As such any of the WWVB clocks of quality/phase tracking do not lock
and
do
not decode.
I have not tried the cheap clocks yet that I suspect will work.
The actual carrier out is a healthy 0 dbm.
Some issues with commands and the system seeming to lock up requiring
power
cycles.
With respect to the carrier. The chronverter is elegant in the fact
that
it
can generate the 60 KHz frequency and other LF signals. But I will need
to
add an external 6 MHz oscillator divider and modulator if I want to use
it
with the good receivers.
Adds power and complexity.
Regards
Paul
WB8TSL
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to
http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.
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To unsubscribe, go to
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Chronverter
It allows you to set the rules and even has built in rules for various
regions.
Hope that helps see my other post about my experiance so far.
Regards
Paul
WB8TSL
On Fri, Aug 24, 2018 at 9:20 AM, Graham / KE9H ke9h.graham@gmail.com
wrote:
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 like a microprocessor based clock)
to get DST information?
Neither NTP or GPS provide that information.
I have seen some websites with DST information, but decoding HTTP seems a
daunting task for a microprocessor clock.
--- Graham
==
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to http://lists.febo.com/mailman/
listinfo/time-nuts_lists.febo.com
and follow the instructions there.
I like Paul's idea, although there may be a risk of the LED's drive signal
not being accurately timed. Driving that LED accurately may have had
a low priority in the programmer's mind.
This should be independently checked for critical applications.
Dana
On Fri, Aug 24, 2018 at 8:23 AM paul swed paulswedb@gmail.com wrote:
Thank you for the responses.
I have not reached out to him yet. Want to see if there are other issues
and I can easily add an external 60 KHz source and modulator right now to
verify the other functionality.
There is no schematic nor source code its a 8 pin uproc chip and as such
has almost no IO. I can easily see a very simple fix but needs a change to
the code behavior. (The chip it self can not do the modulation function.
Thats why its OOK).
But if the carrier were left on there is a LED that blinks to the time code
sequence and that can drive a 1 transistor or diode modulator.
Regards
Paul
WB8TSL
On Fri, Aug 24, 2018 at 3:14 AM, Dana Whitlow k8yumdoober@gmail.com
wrote:
Is there a schematic published for the Chronverter? I agree with Didier
that the
OOK issue *ought *to be pretty easy to fix, and I'd like to look into
that
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 paulswedb@gmail.com wrote:
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.
As such any of the WWVB clocks of quality/phase tracking do not lock
and
do
not decode.
I have not tried the cheap clocks yet that I suspect will work.
The actual carrier out is a healthy 0 dbm.
Some issues with commands and the system seeming to lock up requiring
power
cycles.
With respect to the carrier. The chronverter is elegant in the fact
that
it
can generate the 60 KHz frequency and other LF signals. But I will
need
to
add an external 6 MHz oscillator divider and modulator if I want to
use
it
with the good receivers.
Adds power and complexity.
Regards
Paul
WB8TSL
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to
http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to http://lists.febo.com/mailman/
listinfo/time-nuts_lists.febo.com
and follow the instructions there.
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To unsubscribe, go to
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and follow the instructions there.
Pretty sure I am about to find out.
On Fri, Aug 24, 2018 at 9:41 AM, Dana Whitlow k8yumdoober@gmail.com wrote:
I like Paul's idea, although there may be a risk of the LED's drive signal
not being accurately timed. Driving that LED accurately may have had
a low priority in the programmer's mind.
This should be independently checked for critical applications.
Dana
On Fri, Aug 24, 2018 at 8:23 AM paul swed paulswedb@gmail.com wrote:
Thank you for the responses.
I have not reached out to him yet. Want to see if there are other issues
and I can easily add an external 60 KHz source and modulator right now to
verify the other functionality.
There is no schematic nor source code its a 8 pin uproc chip and as such
has almost no IO. I can easily see a very simple fix but needs a change
to
the code behavior. (The chip it self can not do the modulation function.
Thats why its OOK).
But if the carrier were left on there is a LED that blinks to the time
code
sequence and that can drive a 1 transistor or diode modulator.
Regards
Paul
WB8TSL
On Fri, Aug 24, 2018 at 3:14 AM, Dana Whitlow k8yumdoober@gmail.com
wrote:
Is there a schematic published for the Chronverter? I agree with
Didier
that the
OOK issue *ought *to be pretty easy to fix, and I'd like to look into
that
wrote:
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 paulswedb@gmail.com wrote:
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.
As such any of the WWVB clocks of quality/phase tracking do not
lock
and
do
not decode.
I have not tried the cheap clocks yet that I suspect will work.
The actual carrier out is a healthy 0 dbm.
Some issues with commands and the system seeming to lock up
requiring
power
cycles.
With respect to the carrier. The chronverter is elegant in the fact
that
it
can generate the 60 KHz frequency and other LF signals. But I will
need
to
add an external 6 MHz oscillator divider and modulator if I want to
use
it
with the good receivers.
Adds power and complexity.
Regards
Paul
WB8TSL
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to
http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to
http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to http://lists.febo.com/mailman/
listinfo/time-nuts_lists.febo.com
and follow the instructions there.
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe, go to
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and follow the instructions there.
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To unsubscribe, go to http://lists.febo.com/mailman/
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and follow the instructions there.