Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches bill.riches@verizon.netwrote:
Nothing going on in Cape May for a while - I don't know if they are done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and Time
Interval (PTTI) Meeting which took place in Reston, VA during this past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz <rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening, I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listin
fo/time-nuts>
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
There is some info here http://www.ursanav.com/ - click on the Latest LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdfthat
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swed paulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches <bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and Time
Interval (PTTI) Meeting which took place in Reston, VA during this past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz <rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening, I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listin
fo/time-nuts>
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
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and follow the instructions there.
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To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
Link does not work??
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalter alanh137@gmail.com wrote:
There is some info here http://www.ursanav.com/ - click on the Latest LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdfthat
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swed paulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches <bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and Time
Interval (PTTI) Meeting which took place in Reston, VA during this past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz <rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening, I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<
fo/time-nuts>
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
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and follow the instructions there.
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To unsubscribe, go to
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and follow the instructions there.
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To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
Not sure why the link does not work but the docs under the whitepapers.
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalter alanh137@gmail.com wrote:
There is some info here http://www.ursanav.com/ - click on the Latest LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdfthat
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swed paulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches <bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and Time
Interval (PTTI) Meeting which took place in Reston, VA during this past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz <rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening, I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<
fo/time-nuts>
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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To unsubscribe, go to
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and follow the instructions there.
Take the "that" off the end of the address and it works.
John WA4WDL
From: "paul swed" paulswedb@gmail.com
Sent: Saturday, December 01, 2012 10:10 AM
To: "Discussion of precise time and frequency measurement"
time-nuts@febo.com
Subject: Re: [time-nuts] Loran
Not sure why the link does not work but the docs under the whitepapers.
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalter alanh137@gmail.com
wrote:
There is some info here http://www.ursanav.com/ - click on the Latest LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdfthat
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking
about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swed paulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches <bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and
Time
Interval (PTTI) Meeting which took place in Reston, VA during this
past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz <rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening,
I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<
fo/time-nuts>
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Try it now.
----- Original Message -----
From: "paul swed" paulswedb@gmail.com
To: "Discussion of precise time and frequency measurement"
time-nuts@febo.com
Sent: Saturday, December 01, 2012 10:10 AM
Subject: Re: [time-nuts] Loran
Not sure why the link does not work but the docs under the whitepapers.
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalter alanh137@gmail.com wrote:
There is some info here http://www.ursanav.com/ - click on the Latest LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdf
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swed paulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches <bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and Time
Interval (PTTI) Meeting which took place in Reston, VA during this
past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz <rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening,
I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<
fo/time-nuts>
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
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To unsubscribe, go to
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To unsubscribe, go to
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and follow the instructions there.
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To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
On 12/01/2012 04:10 PM, paul swed wrote:
Not sure why the link does not work but the docs under the whitepapers.
As someone forgot to press space after the link, the word "that" merged
to the ".pdf" end, so removing the "that" unintentional ending gives you
a working link:
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdf
Looks like an interesting paper. Gotta read it. Waveforms included!
Cheers,
Magnus
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalteralanh137@gmail.com wrote:
There is some info here http://www.ursanav.com/ - click on the Latest LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdfthat
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swedpaulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches<bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and Time
Interval (PTTI) Meeting which took place in Reston, VA during this past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz<rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening, I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<
fo/time-nuts>
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
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To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Remove the "that" from "pdfthat" ?
paul swed wrote:
Not sure why the link does not work but the docs under the whitepapers.
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalter alanh137@gmail.com wrote:
There is some info here http://www.ursanav.com/ - click on the Latest LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdfthat
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swed paulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches <bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and Time
Interval (PTTI) Meeting which took place in Reston, VA during this past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz <rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening, I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<
fo/time-nuts>
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
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and follow the instructions there.
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To unsubscribe, go to
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To unsubscribe, go to
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To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Very interesting topic. So, it appears that UrsaNav bought a pair of
companies that have interesting IP. In particular, CrossRate has a few
interesting patents -- this may be the most relevant:
United States Patent Application 20080144744:
A system for demodulation of the Loran Data Channel transmitted over the
Enhanced Loran (eLoran) system including a quadrature filter. The
quadrature filter calculates the real and quadrature phase components of a
received ninth pulse. The resultant components are used to obtain the angle
of the ninth pulse. This angle is then compared with a set of pre-tabulated
angles/symbols that are calculated using the same quadrature filter on
thirty-two different simulated ninth pulses. The closest angle match gives
the corresponding symbol. Such twenty-four symbols make up a single Reed
Solomon encoded message. This message is then passed through a Reed Solomon
decoder and the transmitted message is obtained.
Also, UrsaNav teamed with Nautel, noted LF amplifier designer for this
system. Interesting.
On Sat, Dec 1, 2012 at 10:42 AM, Chuck Harris cfharris@erols.com wrote:
Remove the "that" from "pdfthat" ?
paul swed wrote:
Not sure why the link does not work but the docs under the whitepapers.
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalter alanh137@gmail.com
wrote:
There is some info here http://www.ursanav.com/ - click on the Latest LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/
Nautel-UrsaNav-NAV10-Research-**Paper.pdfthathttp://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdfthat
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking
about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swed paulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches <bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@**febo.comtime-nuts-bounces@febo.com
]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and Time
Interval (PTTI) Meeting which took place in Reston, VA during this past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@**febo.comtime-nuts-bounces@febo.com
]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz <rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening, I
guessing from New Jersey. Anyone else hearing these?
Rich
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On 12/01/2012 05:05 PM, Mark Kahrs wrote:
Very interesting topic. So, it appears that UrsaNav bought a pair of
companies that have interesting IP. In particular, CrossRate has a few
interesting patents -- this may be the most relevant:
United States Patent Application 20080144744:
A system for demodulation of the Loran Data Channel transmitted over the
Enhanced Loran (eLoran) system including a quadrature filter. The
quadrature filter calculates the real and quadrature phase components of a
received ninth pulse. The resultant components are used to obtain the angle
of the ninth pulse. This angle is then compared with a set of pre-tabulated
angles/symbols that are calculated using the same quadrature filter on
thirty-two different simulated ninth pulses. The closest angle match gives
the corresponding symbol. Such twenty-four symbols make up a single Reed
Solomon encoded message. This message is then passed through a Reed Solomon
decoder and the transmitted message is obtained.
Do read the paper, as it proposed to remove the ninth pulse and use a
OFDMA modulation for the data-part while the PNT part would be modified
variants of the traditional LORAN-C pulses. This patent would those not
be relevant for the proposed scheme.
Also, UrsaNav teamed with Nautel, noted LF amplifier designer for this
system. Interesting.
Considering that they intend to change pulse-shapes and even add a
complete new modulation technique, the transmitters need to support it.
Cheers,
Magnus
From Page 5:
"The need to offer legacy LORAN-C system capabilityt for legacy LORAN-C is
not required in the US and...."
Does anybody who heard the test signal know for certain that the
modulation was that being proposed? Perhaps they were just testing a new
transmitter with the old modulation?
It looks to me like this is another new format, requiring the purchase of
new receivers from a sole source supplier who has probably got the whole
thing wrapped up in patents... hence another government sanctioned
monopoly with commensurate prices.
-John
============
On 12/01/2012 04:10 PM, paul swed wrote:
Not sure why the link does not work but the docs under the whitepapers.
As someone forgot to press space after the link, the word "that" merged
to the ".pdf" end, so removing the "that" unintentional ending gives you
a working link:
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdf
Looks like an interesting paper. Gotta read it. Waveforms included!
Cheers,
Magnus
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalteralanh137@gmail.com
wrote:
There is some info here http://www.ursanav.com/ - click on the Latest
LF
News on the right side.
There is a paper here
http://www.nautelnav.com/wp-content/uploads/2011/09/Nautel-UrsaNav-NAV10-Research-Paper.pdfthat
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking
about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swedpaulswedb@gmail.com wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches<bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and
Time
Interval (PTTI) Meeting which took place in Reston, VA during this
past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz<rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening,
I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
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fo/time-nuts>
and follow the instructions there.
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and follow the instructions there.
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To unsubscribe, go to
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In message 52350.12.6.201.2.1354382552.squirrel@popaccts.quikus.com, "J. Fors
ter" writes:
It looks to me like this is another new format, requiring the purchase of
new receivers from a sole source supplier who has probably got the whole
thing wrapped up in patents... hence another government sanctioned
monopoly with commensurate prices.
As much as we foreigners appreciate the dysfunctionality of the US
political system, could we maybe make time-nuts the one place were
we don't have to hear ranting about it all the time ?
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
On 12/01/2012 06:34 PM, Poul-Henning Kamp wrote:
In message52350.12.6.201.2.1354382552.squirrel@popaccts.quikus.com, "J. Fors
ter" writes:
It looks to me like this is another new format, requiring the purchase of
new receivers from a sole source supplier who has probably got the whole
thing wrapped up in patents... hence another government sanctioned
monopoly with commensurate prices.
As much as we foreigners appreciate the dysfunctionality of the US
political system, could we maybe make time-nuts the one place were
we don't have to hear ranting about it all the time ?
Agreeing with Poul-Henning. I do enjoy the discussions on the merits of
various systems, a modernized Loran included. Long threads ranting about
these issues however is outside the scope and just annoying.
There is obviously opinions enough for a separate list on the topic of
PNT IPR issues, so let's move it there.
Cheers,
Magnus
John
I can only say that the austrons had no problem copying the signal and
locking.
I know that eloran in europe was going to main compatibility with the old
systems.
So no way to know if it was a different transmitter or much of anything
else.
Regards
Paul
On Sat, Dec 1, 2012 at 12:22 PM, J. Forster jfor@quikus.com wrote:
From Page 5:
"The need to offer legacy LORAN-C system capabilityt for legacy LORAN-C is
not required in the US and...."
Does anybody who heard the test signal know for certain that the
modulation was that being proposed? Perhaps they were just testing a new
transmitter with the old modulation?
It looks to me like this is another new format, requiring the purchase of
new receivers from a sole source supplier who has probably got the whole
thing wrapped up in patents... hence another government sanctioned
monopoly with commensurate prices.
-John
============
On 12/01/2012 04:10 PM, paul swed wrote:
Not sure why the link does not work but the docs under the whitepapers.
As someone forgot to press space after the link, the word "that" merged
to the ".pdf" end, so removing the "that" unintentional ending gives you
a working link:
Looks like an interesting paper. Gotta read it. Waveforms included!
Cheers,
Magnus
On Fri, Nov 30, 2012 at 9:17 PM, Alan Hochhalteralanh137@gmail.com
wrote:
There is some info here http://www.ursanav.com/ - click on the Latest
LF
News on the right side.
There is a paper here
I think is relevant. It will take me some time to wade through it
with no guarantee I'll understand it enough to be sure it is talking
about
the same thing so I thought I'd pass it along.
Alan
On Fri, Nov 30, 2012 at 6:46 PM, paul swedpaulswedb@gmail.com
wrote:
Well as predicted they went home at 5pm. Signals off the air.
On Fri, Nov 30, 2012 at 7:26 PM, Bill Riches<bill.riches@verizon.net
wrote:
Nothing going on in Cape May for a while - I don't know if they are
done
testing.
Bill WA2DVU
Cape May, NJ
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of Mike Garvey
Sent: Friday, November 30, 2012 3:25 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran
Might be these guys; this abstract is from the Precision Time and
Time
Interval (PTTI) Meeting which took place in Reston, VA during this
past
week.
There will be a follow-up manuscript.
Mike
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of paul swed
Sent: Thursday, November 29, 2012 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran
Rich
Did not see anyone respond. Are you still hearing the signal?
Paul
WB8TSL
On Mon, Nov 26, 2012 at 6:59 PM, Rich and Marcia Putz<rputz@bnin.net
wrote:
Hi all;
I 'm hearing Loran C signals here in northern Indiana this evening,
I
guessing from New Jersey. Anyone else hearing these?
Rich
_____________**
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nuts<
fo/time-nuts>
and follow the instructions there.
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and follow the instructions there.
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To unsubscribe, go to
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To unsubscribe, go to
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To unsubscribe, go to
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To unsubscribe, go to
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