Empathy List Archives

PS

paul swed

Thu, Feb 2, 2017 6:59 PM

Well this is nice almost a 2 month long test.
So if you thought about seeing if you could receive eLoran on your Loran C
receiver this is a good opportunity. With respect to the data channel
pretty sure none of the receivers we have know or care about it.

The Wildwood, NJ eLoran transmitter will be continuously broadcasting from
0900 (EST) on 06 February 2017 through 1200 (EST) on 31 March 2017.
Wildwood will be broadcasting as 8970 Master and Secondary most of the time
but occasionally may operate at other rates.

Please note that the Loran Data Channel (LDC) will be undergoing testing
and may be unavailable or unreliable for short periods of time

from 06-10 February 2017.

Regards
Paul
WB8TSL

Well this is nice almost a 2 month long test. So if you thought about seeing if you could receive eLoran on your Loran C receiver this is a good opportunity. With respect to the data channel pretty sure none of the receivers we have know or care about it. The Wildwood, NJ eLoran transmitter will be continuously broadcasting from 0900 (EST) on 06 February 2017 through 1200 (EST) on 31 March 2017. Wildwood will be broadcasting as 8970 Master and Secondary most of the time but occasionally may operate at other rates. Please note that the Loran Data Channel (LDC) will be undergoing testing and may be unavailable or unreliable for short periods of time from 06-10 February 2017. Regards Paul WB8TSL

RN

Ruslan Nabioullin

Fri, Feb 3, 2017 12:55 AM

On 02/02/2017 01:59 PM, paul swed wrote:

Well this is nice almost a 2 month long test.
So if you thought about seeing if you could receive eLoran on your Loran C
receiver this is a good opportunity. With respect to the data channel
pretty sure none of the receivers we have know or care about it.

So eLORAN, both the present experimental form and the expected future
standard, is completely forward-compatible?

-Ruslan

On 02/02/2017 01:59 PM, paul swed wrote: > Well this is nice almost a 2 month long test. > So if you thought about seeing if you could receive eLoran on your Loran C > receiver this is a good opportunity. With respect to the data channel > pretty sure none of the receivers we have know or care about it. So eLORAN, both the present experimental form and the expected future standard, is completely forward-compatible? -Ruslan

PS

paul swed

Fri, Feb 3, 2017 2:47 AM

Ruslan,
Seems to be backward compatible. Yes.
All of my stuff works austrons and SRS 700.
Whats your location? The transmitter is in NJ and I am near Boston. So
somewhat close for me. My antenna is the standard boat preamp and whip
antenna. 6 foot off the ground.
Regards
Paul
WB8TSL

On Thu, Feb 2, 2017 at 7:55 PM, Ruslan Nabioullin rnabioullin@gmail.com
wrote:

On 02/02/2017 01:59 PM, paul swed wrote:

Well this is nice almost a 2 month long test.
So if you thought about seeing if you could receive eLoran on your Loran C
receiver this is a good opportunity. With respect to the data channel
pretty sure none of the receivers we have know or care about it.

So eLORAN, both the present experimental form and the expected future
standard, is completely forward-compatible?

-Ruslan

time-nuts mailing list -- time-nuts@febo.com
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ailman/listinfo/time-nuts
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Ruslan, Seems to be backward compatible. Yes. All of my stuff works austrons and SRS 700. Whats your location? The transmitter is in NJ and I am near Boston. So somewhat close for me. My antenna is the standard boat preamp and whip antenna. 6 foot off the ground. Regards Paul WB8TSL On Thu, Feb 2, 2017 at 7:55 PM, Ruslan Nabioullin <rnabioullin@gmail.com> wrote: > On 02/02/2017 01:59 PM, paul swed wrote: > >> Well this is nice almost a 2 month long test. >> So if you thought about seeing if you could receive eLoran on your Loran C >> receiver this is a good opportunity. With respect to the data channel >> pretty sure none of the receivers we have know or care about it. >> > > So eLORAN, both the present experimental form and the expected future > standard, is completely forward-compatible? > > -Ruslan > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. >

JM

John Marvin

Fri, Feb 3, 2017 6:20 AM

I don't have a Loran receiver, and I live in Colorado. But I'd still
like to check late at night to see if I can see a signal on my SDR
receiver. I tried looking at old posts, and did some research online,
but the best I can tell is that Loran C (and I assume eLoran) is
transmitted at around 100 Khz. Anyone know precisely what frequency(s)
are used by the Wildwood eLOran station?

Regards,

John

On 2/2/2017 11:59 AM, paul swed wrote:

Well this is nice almost a 2 month long test.
So if you thought about seeing if you could receive eLoran on your Loran C
receiver this is a good opportunity. With respect to the data channel
pretty sure none of the receivers we have know or care about it.

The Wildwood, NJ eLoran transmitter will be continuously broadcasting from
0900 (EST) on 06 February 2017 through 1200 (EST) on 31 March 2017.
Wildwood will be broadcasting as 8970 Master and Secondary most of the time
but occasionally may operate at other rates.

Please note that the Loran Data Channel (LDC) will be undergoing testing
and may be unavailable or unreliable for short periods of time

from 06-10 February 2017.

Regards
Paul
WB8TSL

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.

I don't have a Loran receiver, and I live in Colorado. But I'd still like to check late at night to see if I can see a signal on my SDR receiver. I tried looking at old posts, and did some research online, but the best I can tell is that Loran C (and I assume eLoran) is transmitted at around 100 Khz. Anyone know precisely what frequency(s) are used by the Wildwood eLOran station? Regards, John On 2/2/2017 11:59 AM, paul swed wrote: > Well this is nice almost a 2 month long test. > So if you thought about seeing if you could receive eLoran on your Loran C > receiver this is a good opportunity. With respect to the data channel > pretty sure none of the receivers we have know or care about it. > > The Wildwood, NJ eLoran transmitter will be continuously broadcasting from > 0900 (EST) on 06 February 2017 through 1200 (EST) on 31 March 2017. > Wildwood will be broadcasting as 8970 Master and Secondary most of the time > but occasionally may operate at other rates. > > > > Please note that the Loran Data Channel (LDC) will be undergoing testing > and may be unavailable or unreliable for short periods of time > > from 06-10 February 2017. > > Regards > Paul > WB8TSL > _______________________________________________ > 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.

RN

Ruslan Nabioullin

Fri, Feb 3, 2017 7:08 AM

On 02/02/2017 09:47 PM, paul swed wrote:

Ruslan,
Seems to be backward compatible. Yes.
All of my stuff works austrons and SRS 700.
Whats your location? The transmitter is in NJ and I am near Boston. So
somewhat close for me. My antenna is the standard boat preamp and whip
antenna. 6 foot off the ground.
Regards
Paul
WB8TSL

Very exciting news! I and my modest metrology lab is located in
southern NH. But time transfer won't work, right? I'm not interested
in LORAN-based frequency transfer due to my having a number of modern Cs
standards, Rb standards, a disciplined OCXO standard, and currently one
low-end (+/- 150 ns) GPS time and frequency receiver (the XL-AK).

-Ruslan

On 02/02/2017 09:47 PM, paul swed wrote: > Ruslan, > Seems to be backward compatible. Yes. > All of my stuff works austrons and SRS 700. > Whats your location? The transmitter is in NJ and I am near Boston. So > somewhat close for me. My antenna is the standard boat preamp and whip > antenna. 6 foot off the ground. > Regards > Paul > WB8TSL Very exciting news! I and my modest metrology lab is located in southern NH. But time transfer won't work, right? I'm not interested in LORAN-based frequency transfer due to my having a number of modern Cs standards, Rb standards, a disciplined OCXO standard, and currently one low-end (+/- 150 ns) GPS time and frequency receiver (the XL-AK). -Ruslan

CH

Chuck Harris

Fri, Feb 3, 2017 2:17 PM

All Loran C signals are transmitted at precisely 100.00000... KHz.

They are a pulse signal system, where each member of the chain uses
a different repetition rate to time the placement of its pulses.

The repetition rates are designed so that they pulses from any
two chains are not coincident, but for random times, over very
long intervals.

There are numerous Wiki's, and other sources of information that
can be found by searching for Loran C.

-Chuck Harris

John Marvin wrote:

I don't have a Loran receiver, and I live in Colorado. But I'd still like to check
late at night to see if I can see a signal on my SDR receiver. I tried looking at old
posts, and did some research online, but the best I can tell is that Loran C (and I
assume eLoran) is transmitted at around 100 Khz. Anyone know precisely what
frequency(s) are used by the Wildwood eLOran station?

Regards,

John

All Loran C signals are transmitted at precisely 100.00000... KHz. They are a pulse signal system, where each member of the chain uses a different repetition rate to time the placement of its pulses. The repetition rates are designed so that they pulses from any two chains are not coincident, but for random times, over very long intervals. There are numerous Wiki's, and other sources of information that can be found by searching for Loran C. -Chuck Harris John Marvin wrote: > I don't have a Loran receiver, and I live in Colorado. But I'd still like to check > late at night to see if I can see a signal on my SDR receiver. I tried looking at old > posts, and did some research online, but the best I can tell is that Loran C (and I > assume eLoran) is transmitted at around 100 Khz. Anyone know precisely what > frequency(s) are used by the Wildwood eLOran station? > > Regards, > > John

BR

Bill Riches

Fri, Feb 3, 2017 2:32 PM

100 khz.

73,

Bill, WA2DVU

-----Original Message-----
From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of John Marvin
Sent: Friday, February 3, 2017 1:21 AM
To: time-nuts@febo.com
Subject: Re: [time-nuts] eLoran test 6 Feb for almost 2 months

I don't have a Loran receiver, and I live in Colorado. But I'd still like to check late at night to see if I can see a signal on my SDR receiver. I tried looking at old posts, and did some research online, but the best I can tell is that Loran C (and I assume eLoran) is transmitted at around 100 Khz. Anyone know precisely what frequency(s) are used by the Wildwood eLOran station?

Regards,

John

On 2/2/2017 11:59 AM, paul swed wrote:

Well this is nice almost a 2 month long test.
So if you thought about seeing if you could receive eLoran on your
Loran C receiver this is a good opportunity. With respect to the data
channel pretty sure none of the receivers we have know or care about it.

The Wildwood, NJ eLoran transmitter will be continuously broadcasting
from
0900 (EST) on 06 February 2017 through 1200 (EST) on 31 March 2017.
Wildwood will be broadcasting as 8970 Master and Secondary most of the
time but occasionally may operate at other rates.

Please note that the Loran Data Channel (LDC) will be undergoing
testing and may be unavailable or unreliable for short periods of time

from 06-10 February 2017.

Regards
Paul
WB8TSL

time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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and follow the instructions there.

100 khz. 73, Bill, WA2DVU -----Original Message----- From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of John Marvin Sent: Friday, February 3, 2017 1:21 AM To: time-nuts@febo.com Subject: Re: [time-nuts] eLoran test 6 Feb for almost 2 months I don't have a Loran receiver, and I live in Colorado. But I'd still like to check late at night to see if I can see a signal on my SDR receiver. I tried looking at old posts, and did some research online, but the best I can tell is that Loran C (and I assume eLoran) is transmitted at around 100 Khz. Anyone know precisely what frequency(s) are used by the Wildwood eLOran station? Regards, John On 2/2/2017 11:59 AM, paul swed wrote: > Well this is nice almost a 2 month long test. > So if you thought about seeing if you could receive eLoran on your > Loran C receiver this is a good opportunity. With respect to the data > channel pretty sure none of the receivers we have know or care about it. > > The Wildwood, NJ eLoran transmitter will be continuously broadcasting > from > 0900 (EST) on 06 February 2017 through 1200 (EST) on 31 March 2017. > Wildwood will be broadcasting as 8970 Master and Secondary most of the > time but occasionally may operate at other rates. > > > > Please note that the Loran Data Channel (LDC) will be undergoing > testing and may be unavailable or unreliable for short periods of time > > from 06-10 February 2017. > > Regards > Paul > WB8TSL > _______________________________________________ > 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 https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

BC

Bob Camp

Fri, Feb 3, 2017 2:53 PM

Hi

Loran C is a pulse based system. All transmitters world wide run on the same 100 KHz frequency. The thing that
distinguishes one transmission from another is the repetition rate of the signal. If you have a spectrum analyzer
and hook up a piece of wire near one of the transmitters, the signal shows up over many 10’s of KHz of
bandwidth each side of 100 KHz. With reasonable gear, you can pick up the European Loran chains in the US
on a regular basis. You can also pick up the Russian system that runs on the same frequency. The gotcha there
is that you are looking at “skywave” rather than “ground wave” signals to some degree. That degrades their value
for timing or for navigation. (Yes, it is all a lot more complicated that than very simple / quick summary).

Bob

On Feb 3, 2017, at 1:20 AM, John Marvin jm-tnut@themarvins.org wrote:

I don't have a Loran receiver, and I live in Colorado. But I'd still like to check late at night to see if I can see a signal on my SDR receiver. I tried looking at old posts, and did some research online, but the best I can tell is that Loran C (and I assume eLoran) is transmitted at around 100 Khz. Anyone know precisely what frequency(s) are used by the Wildwood eLOran station?

Regards,

John

On 2/2/2017 11:59 AM, paul swed wrote:

Well this is nice almost a 2 month long test.
So if you thought about seeing if you could receive eLoran on your Loran C
receiver this is a good opportunity. With respect to the data channel
pretty sure none of the receivers we have know or care about it.

The Wildwood, NJ eLoran transmitter will be continuously broadcasting from
0900 (EST) on 06 February 2017 through 1200 (EST) on 31 March 2017.
Wildwood will be broadcasting as 8970 Master and Secondary most of the time
but occasionally may operate at other rates.

Please note that the Loran Data Channel (LDC) will be undergoing testing
and may be unavailable or unreliable for short periods of time

from 06-10 February 2017.

Regards
Paul
WB8TSL

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.

Hi Loran C is a pulse based system. All transmitters world wide run on the same 100 KHz frequency. The thing that distinguishes one transmission from another is the repetition rate of the signal. If you have a spectrum analyzer and hook up a piece of wire near one of the transmitters, the signal shows up over many 10’s of KHz of bandwidth each side of 100 KHz. With reasonable gear, you can pick up the European Loran chains in the US on a regular basis. You can also pick up the Russian system that runs on the same frequency. The gotcha there is that you are looking at “skywave” rather than “ground wave” signals to some degree. That degrades their value for timing or for navigation. (Yes, it is all a lot more complicated that than very simple / quick summary). Bob > On Feb 3, 2017, at 1:20 AM, John Marvin <jm-tnut@themarvins.org> wrote: > > I don't have a Loran receiver, and I live in Colorado. But I'd still like to check late at night to see if I can see a signal on my SDR receiver. I tried looking at old posts, and did some research online, but the best I can tell is that Loran C (and I assume eLoran) is transmitted at around 100 Khz. Anyone know precisely what frequency(s) are used by the Wildwood eLOran station? > > Regards, > > John > > > On 2/2/2017 11:59 AM, paul swed wrote: >> Well this is nice almost a 2 month long test. >> So if you thought about seeing if you could receive eLoran on your Loran C >> receiver this is a good opportunity. With respect to the data channel >> pretty sure none of the receivers we have know or care about it. >> >> The Wildwood, NJ eLoran transmitter will be continuously broadcasting from >> 0900 (EST) on 06 February 2017 through 1200 (EST) on 31 March 2017. >> Wildwood will be broadcasting as 8970 Master and Secondary most of the time >> but occasionally may operate at other rates. >> >> >> >> Please note that the Loran Data Channel (LDC) will be undergoing testing >> and may be unavailable or unreliable for short periods of time >> >> from 06-10 February 2017. >> >> Regards >> Paul >> WB8TSL >> _______________________________________________ >> 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 https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

PS

paul swed

Fri, Feb 3, 2017 3:02 PM

John absolutely 1 frequency 100 KHz. The repetition rate is 89700 us. Its
pulse and you need about +-15KHz BW. If listening its just a ticking sound.
Ruslan
NH will be easy to pick it up. The core frequency is 3 Cesiums in a cluster.
As for time transfer it can but its really a pain in the backend and that
information is indeed in the data channel.
So make us jealous with your CS and RBs. :-)
I am down in Franklin Ma so we are actually close compared to others.
Regards
Paul
Swedberg

On Fri, Feb 3, 2017 at 2:08 AM, Ruslan Nabioullin rnabioullin@gmail.com
wrote:

On 02/02/2017 09:47 PM, paul swed wrote:

Ruslan,
Seems to be backward compatible. Yes.
All of my stuff works austrons and SRS 700.
Whats your location? The transmitter is in NJ and I am near Boston. So
somewhat close for me. My antenna is the standard boat preamp and whip
antenna. 6 foot off the ground.
Regards
Paul
WB8TSL

Very exciting news! I and my modest metrology lab is located in southern
NH. But time transfer won't work, right? I'm not interested in
LORAN-based frequency transfer due to my having a number of modern Cs
standards, Rb standards, a disciplined OCXO standard, and currently one
low-end (+/- 150 ns) GPS time and frequency receiver (the XL-AK).

-Ruslan

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
and follow the instructions there.

John absolutely 1 frequency 100 KHz. The repetition rate is 89700 us. Its pulse and you need about +-15KHz BW. If listening its just a ticking sound. Ruslan NH will be easy to pick it up. The core frequency is 3 Cesiums in a cluster. As for time transfer it can but its really a pain in the backend and that information is indeed in the data channel. So make us jealous with your CS and RBs. :-) I am down in Franklin Ma so we are actually close compared to others. Regards Paul Swedberg On Fri, Feb 3, 2017 at 2:08 AM, Ruslan Nabioullin <rnabioullin@gmail.com> wrote: > On 02/02/2017 09:47 PM, paul swed wrote: > >> Ruslan, >> Seems to be backward compatible. Yes. >> All of my stuff works austrons and SRS 700. >> Whats your location? The transmitter is in NJ and I am near Boston. So >> somewhat close for me. My antenna is the standard boat preamp and whip >> antenna. 6 foot off the ground. >> Regards >> Paul >> WB8TSL >> > > Very exciting news! I and my modest metrology lab is located in southern > NH. But time transfer won't work, right? I'm not interested in > LORAN-based frequency transfer due to my having a number of modern Cs > standards, Rb standards, a disciplined OCXO standard, and currently one > low-end (+/- 150 ns) GPS time and frequency receiver (the XL-AK). > > > -Ruslan > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. >

PK

Poul-Henning Kamp

Fri, Feb 3, 2017 6:31 PM

In message 589490F1.4090902@erols.com, Chuck Harris writes:

All Loran C signals are transmitted at precisely 100.00000... KHz.

Actually, they're not.

The envelope changes the frequency in rather interesting ways. I used
to have a plot of it, but it seems to have disappeared into my
archives some time go...

Stick to the zero-crossings.

--
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.

-------- In message <589490F1.4090902@erols.com>, Chuck Harris writes: >All Loran C signals are transmitted at precisely 100.00000... KHz. Actually, they're not. The envelope changes the frequency in rather interesting ways. I used to have a plot of it, but it seems to have disappeared into my archives some time go... Stick to the zero-crossings. -- 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.

time-nuts@lists.febo.com

eLoran test 6 Feb for almost 2 months