Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Bob Camp]

Hi

For NTP grade timing, there are still a lot of broadcast sources out there. 
You *do* need to be careful about propagation and when to (not) use 
them during the day. Focusing effort on that part of it is probably more
useful than waiting for funding to appear for eLoran….

Bob


> On Feb 4, 2017, at 11:51 PM, Ruslan Nabioullin  wrote:
> 
> On 02/03/2017 10:02 AM, paul swed wrote:
>> 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.
> 
> I'm actually jealous of your LORAN time/frequency metrology capability :).  
> Apparently UrsaNav (headquartered locally in North Billerica, MA!) are the 
> ones performing these particular aforementioned R efforts; I have visited 
> their corporate website and have read about their projects and product 
> portfolio, and have developed a liking for this company (despite being 
> anarchosocialist).  The reason is that philosophically I'm a strong advocate 
> of resilient technology and social policies, and consequently that is the 
> entire purpose of my nonprofit time/frequency metrology and transfer project. 
>  As an example, the redundant timekeeping and NTP transfer minicomputers will 
> be provided with 7--10 WWV and CHU channels received with redundant 
> auto-failover HF antennae, just in case some channels fail (and that is in 
> addition to redundant GPS and of course the set of redundant UPS-, solar-, 
> and generator-backed standards, which hopefully will grow to there being a 
> fused ensemble of two moder
 n Cs standards at any one time, rather than the current scheme of the 
VXI-based controller simply running one at a time in an auto-failover 
configuration).
> 
> -Ruslan
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Ruslan Nabioullin]

On 02/03/2017 10:02 AM, paul swed wrote:

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.


I'm actually jealous of your LORAN time/frequency metrology capability 
:).  Apparently UrsaNav (headquartered locally in North Billerica, MA!) 
are the ones performing these particular aforementioned R efforts; I 
have visited their corporate website and have read about their projects 
and product portfolio, and have developed a liking for this company 
(despite being anarchosocialist).  The reason is that philosophically 
I'm a strong advocate of resilient technology and social policies, and 
consequently that is the entire purpose of my nonprofit time/frequency 
metrology and transfer project.  As an example, the redundant 
timekeeping and NTP transfer minicomputers will be provided with 7--10 
WWV and CHU channels received with redundant auto-failover HF antennae, 
just in case some channels fail (and that is in addition to redundant 
GPS and of course the set of redundant UPS-, solar-, and 
generator-backed standards, which hopefully will grow to there being a 
fused ensemble of two modern Cs standards at any one time, rather than 
the current scheme of the VXI-based controller simply running one at a 
time in an auto-failover configuration).


-Ruslan
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Bob Camp]

Hi

The ground wave (hopefully) travels a shorter path. The gotcha comes in when
the phase shift is 180 degrees and you start nulling things out. That will play 
havoc 
on the “stuff” that works out the envelope shape for detecting the third pulse. 

Again, I didn’t design a from scratch receiver to do all this back in the 80’s. 
I just 
tuned my Austron over to another chain to see how it did and drew some 
conclusions. 

Bob

> On Feb 4, 2017, at 6:55 PM, Hal Murray  wrote:
> 
> 
> kb...@n1k.org said:
>> If I had not already calibrated the  local standard against a nearby chain …
>> no way to figure out which data was correct.  
> 
> Isn't the ground wave shorter and hence gets there sooner?  Couldn't you use 
> that to calibrate an uncalibrated local standard?
> 
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Hal Murray]

kb...@n1k.org said:
> If I had not already calibrated the  local standard against a nearby chain …
> no way to figure out which data was correct.  

Isn't the ground wave shorter and hence gets there sooner?  Couldn't you use 
that to calibrate an uncalibrated local standard?


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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Bob Camp]

Hi

The Russian system runs an incompatible pulse format. A “normal” Loran receiver 
pretty much pukes when you try to tune to the Russian chains. It also is a bit 
unclear
just how stable their system is timing wise. 

For timing you *need* ground wave. Anything that is more than 1,000 miles away 
is
not going to do much good in a timing system. To me this is one of the basic 
issues
with a eLoran system that only operates out of a single location. I’m happy 
with it if 
it’s in the north eastern part of the US. I’d be really bothered if the only 
transmit location 
was in Nevada …. 

Yes once upon a time I had data on the Iceland chain as received in Ohio. I did 
it more
as a “because I can” than anything else. There were periods that things looked 
~ok and
lots of gaps where they didn’t look very good at all. If I had not already 
calibrated the 
local standard against a nearby chain … no way to figure out which data was 
correct. 

Bob

> On Feb 4, 2017, at 3:05 AM, Ruslan Nabioullin  wrote:
> 
> On 02/03/2017 09:53 AM, Bob Camp wrote:
>> 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).
> 
> Oh wow, I did not know that LORAN reception is adequate over such long 
> distances.  So Chayka is essentially compatible with Loran-C frequency 
> transfer receivers?  And is it still online?  If so, it could be used as a 
> fallback in the unfortunate case that eLORAN R projects in the US fail.
> 
> -Ruslan
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Poul-Henning Kamp]

In message , Ruslan Nabioullin 
writes:
>On 02/03/2017 09:53 AM, Bob Camp wrote:

>> You can also pick up the Russian system
>> that runs on the same frequency. 

"Chayka" on GRI 8000 is almost useless, I'm told this is so
even in Russia, because the GRI is an integral multiple of
1 millisecond, which means that you cannot average out CW
signals on integral kHz frequencies.

-- 
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Ruslan Nabioullin]

On 02/03/2017 09:53 AM, Bob Camp wrote:

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).


Oh wow, I did not know that LORAN reception is adequate over such long 
distances.  So Chayka is essentially compatible with Loran-C frequency 
transfer receivers?  And is it still online?  If so, it could be used as 
a fallback in the unfortunate case that eLORAN R projects in the US fail.


-Ruslan
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Poul-Henning Kamp]

In message <20170203214011.76e59406...@ip-64-139-1-69.sjc.megapath.net>, Hal 
Murray writes:

>What does the spectrum look like?  Is that even a reasonable question for 
>that sort of signal?

Look here for some background:  http://phk.freebsd.dk/loran-c

In particular:  http://phk.freebsd.dk/loran-c/theoretical_spectrum/

Newer stuff here:   http://phk.freebsd.dk/AducLoran/

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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Bob Camp]

Hi

The spectrum is about what you would expect from a bunch of short pulses.

http://phk.freebsd.dk/loran-c/theoretical_spectrum/

Bob


> On Feb 3, 2017, at 4:40 PM, Hal Murray  wrote:
> 
> 
> kb...@n1k.org said:
>> the signal shows up over many 10’s of KHz of  bandwidth each side of 100
>> KHz.
> 
> What does the spectrum look like?  Is that even a reasonable question for 
> that sort of signal?
> 
> How well do typical old/analog spectrum analyzers work on that sort of 
> signal?  (as compared to modern digital/FFT versions)
> 
> How many samples do you need to get the full picture with a FFT?
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Hal Murray]

kb...@n1k.org said:
> the signal shows up over many 10’s of KHz of  bandwidth each side of 100
> KHz.

What does the spectrum look like?  Is that even a reasonable question for 
that sort of signal?

How well do typical old/analog spectrum analyzers work on that sort of 
signal?  (as compared to modern digital/FFT versions)

How many samples do you need to get the full picture with a FFT?

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Re: [time-nuts] eLoran test

[paul swed]

John thats right and the extra bit is the data channel.
Though your homebrew receive may detect and lock. There is only 1 site so
you can't actually navigate. They fake the receivers out by having the same
transmitter act like two.
Regards
Paul
WB8TSL

On Fri, Feb 3, 2017 at 12:58 PM, John Ponsonby 
wrote:

> I have a three channel LORAN-C receiver of my own design which I made over
> thirty years ago. I built it for navigating my small yacht. I think the
> eLoran signals are compatible though of course my receiver doesn't have the
> means to extract the data channel.
> Here follows a brief tutorial.
> All LORAN-C stations transmit on 100kHz precisely. The signals come in
> groups of eight pulses spaced precisely 1ms apart. Master stations transmit
> a ninth identifying pulse spaced 2ms after the last of the 8 so they look
> like: {  ●} The phase of the RF is switched between 0° and 180°
> according to a fixed pseudo-random pattern from pulse to pulse. There are
> two phase patterns, the A pattern and the B pattern, and these alternate
> from one 8 pulse group to the next. The Master patterns are different from
> the Secondary patterns. Each LORAN-C chain has its own GRI (Group
> Repetition Interval) and this is the number of ten's of μs from the start
> of one 8 pulse group to the start of the next.
> For precise navigation one needs to lock onto the ground-waves. If the
> receiver is far from a transmitter the skywave can arrive very shortly
> after the ground-wave, so it is essential to only use the start of each
> pulse. Officially one is supposed to lock onto the third positive going
> zero crossing point on the rising edge of each pulse. Close to a
> transmitter the skywave can arrive up to 1ms after the ground wave so that
> it interferes with the start of the next pulse. The phase coding is
> designed to avoid this causing trouble. The skywave delay varies with time
> of day as the ionosphere goes up and down.
> Because the wavelength is so long (3km), the near-field of the transmitter
> extends quite a long way. That has the effect of changing the phase of the
> received signal from what one might first think it would be assuming a
> fixed velocity of propagation.  The velocity of propagation is less than
> the free-space velocity of light and is different between over-sea and
> over-land paths.
> My receiver just gives two relative time delays in μs and I used a TI59
> calculator to convert to latitude and longitude. The program only just fits
> within the capacity of the calculator.
> I don't know anything very specifically about eLoran but I think the main
> modification is to add extra phase coding on the pulses to form the data
> channel.
> John Ponsonby
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Poul-Henning Kamp]

In message <589490f1.4090...@erols.com>, Chuck Harris writes:

>All Loran C signals are transmitted at precisely 100.0... 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.

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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Poul-Henning Kamp]

In message 
, paul swed 
writes:

>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.

Instead of your SDR it might be smarter to use either a digital
oscilloscope or spectrum analyzer.

You will need a frequency of *exactly* 1/0.089700 us = 11.14827201... Hz.
(HP5359A's are *great* for this, but most DDS sig-gens will work too.

You use this to signal to trigger your scope/spectrum analyzer, feed the
antenna signal to the input and select averaging mode.

If you have a really good antenna signal and a scope/spec-an with high
X-resolution, you can halve the sync frequency and, so that the pulse
polarity does not cancel out about half the loran pulses.

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
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Re: [time-nuts] eLoran test

[John Ponsonby]

I have a three channel LORAN-C receiver of my own design which I made over 
thirty years ago. I built it for navigating my small yacht. I think the eLoran 
signals are compatible though of course my receiver doesn't have the means to 
extract the data channel. 
Here follows a brief tutorial.
All LORAN-C stations transmit on 100kHz precisely. The signals come in groups 
of eight pulses spaced precisely 1ms apart. Master stations transmit a ninth 
identifying pulse spaced 2ms after the last of the 8 so they look like: 
{  ●} The phase of the RF is switched between 0° and 180° according to 
a fixed pseudo-random pattern from pulse to pulse. There are two phase 
patterns, the A pattern and the B pattern, and these alternate from one 8 pulse 
group to the next. The Master patterns are different from the Secondary 
patterns. Each LORAN-C chain has its own GRI (Group Repetition Interval) and 
this is the number of ten's of μs from the start of one 8 pulse group to the 
start of the next.
For precise navigation one needs to lock onto the ground-waves. If the receiver 
is far from a transmitter the skywave can arrive very shortly after the 
ground-wave, so it is essential to only use the start of each pulse. Officially 
one is supposed to lock onto the third positive going zero crossing point on 
the rising edge of each pulse. Close to a transmitter the skywave can arrive up 
to 1ms after the ground wave so that it interferes with the start of the next 
pulse. The phase coding is designed to avoid this causing trouble. The skywave 
delay varies with time of day as the ionosphere goes up and down.
Because the wavelength is so long (3km), the near-field of the transmitter 
extends quite a long way. That has the effect of changing the phase of the 
received signal from what one might first think it would be assuming a fixed 
velocity of propagation.  The velocity of propagation is less than the 
free-space velocity of light and is different between over-sea and over-land 
paths.
My receiver just gives two relative time delays in μs and I used a TI59 
calculator to convert to latitude and longitude. The program only just fits 
within the capacity of the calculator. 
I don't know anything very specifically about eLoran but I think the main 
modification is to add extra phase coding on the pulses to form the data 
channel.
John Ponsonby 
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[paul swed]

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 
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
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Bill Riches]

100 khz.

73,

Bill, WA2DVU

-Original Message-
From: time-nuts [mailto:time-nuts-boun...@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
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Bob Camp]

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  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
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Chuck Harris]

All Loran C signals are transmitted at precisely 100.0... 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
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Ruslan Nabioullin]

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
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[John Marvin]

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
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[paul swed]

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 
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
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Re: [time-nuts] eLoran test 6 Feb for almost 2 months

[Ruslan Nabioullin]

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
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[time-nuts] eLoran test 6 Feb for almost 2 months

[paul swed]

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
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[time-nuts] eLoran Test

[paul swed]

The Wildwood, NJ eLoran transmitter will be continuously broadcasting from
0900 (EST) on 29 July 2016 through 1200 (EST) on 15 August 2016. Wildwood
will be broadcasting as 8970 Master and Secondary most of the time but
occasionally may operate at other rates.
Regards
Paul
WB8TSL
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Re: [time-nuts] eLORAN test 6 Aug. Both Dana In. and wildwood nj

[paul swed]

I have 2 austrons going and the fs700.
One austron on wildwood and the other used for dana.
As you say no luck.
Just remember they are trying to bring dana online after 5 years.
That in itself should be quite a task. Imagine a 600 ft antenna, tuning
coils and transmitter. Kind of a Frankenstein.
So if we don't hear it most likely some mouse messed something up.
Regards
Paul

On Thu, Aug 6, 2015 at 7:32 PM, Stan W1LE stanw...@verizon.net wrote:

 I am locked at 8970 GRI, have been for a few hours
 No luck with 9960 GRI from this location.

 Using a SRS FS700

 Stan, W1LECape CodFN41sr




 On 8/6/2015 4:10 PM, paul swed wrote:

 not on that I can see

 On Thu, Aug 6, 2015 at 12:46 PM, D W watsondani...@gmail.com wrote:

 Picking up a strong signal here in North Carolina. My 2100F has been
 locked to Wildwood all morning. I'm using a 5' wire whip and a home brew
 preamp.

 Not hearing Dana yet.

 Dan

 On Aug 4, 2015, at 2:34 PM, paul swed paulsw...@gmail.com wrote:

 The Wildwood, NJ Transmitter will be on air from 0900 (EDT) 06 August

 until

 1800 (EDT) 07 August. Wildwood will be broadcasting as 8970 Master and
 Secondary.

 The Dana, IN transmitter will also be on air intermittently during this
 time period. Dana will be broadcasting as 9960 Master and possibly other
 rates and stations as well.


 So at least 2 GRIs and at different locations. That will make it pretty
 interesting.

 Regards

 Paul

 WB8TSL
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Re: [time-nuts] eLORAN test 6 Aug. Both Dana In. and wildwood nj

[D W]

Picking up a strong signal here in North Carolina. My 2100F has been locked to 
Wildwood all morning. I'm using a 5' wire whip and a home brew preamp.

Not hearing Dana yet.

Dan

 On Aug 4, 2015, at 2:34 PM, paul swed paulsw...@gmail.com wrote:
 
 The Wildwood, NJ Transmitter will be on air from 0900 (EDT) 06 August until
 1800 (EDT) 07 August. Wildwood will be broadcasting as 8970 Master and
 Secondary.
 
 The Dana, IN transmitter will also be on air intermittently during this
 time period. Dana will be broadcasting as 9960 Master and possibly other
 rates and stations as well.
 
 
 So at least 2 GRIs and at different locations. That will make it pretty
 interesting.
 
 Regards
 
 Paul
 
 WB8TSL
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Re: [time-nuts] eLORAN test 6 Aug. Both Dana In. and wildwood nj

[paul swed]

not on that I can see

On Thu, Aug 6, 2015 at 12:46 PM, D W watsondani...@gmail.com wrote:

 Picking up a strong signal here in North Carolina. My 2100F has been
 locked to Wildwood all morning. I'm using a 5' wire whip and a home brew
 preamp.

 Not hearing Dana yet.

 Dan

  On Aug 4, 2015, at 2:34 PM, paul swed paulsw...@gmail.com wrote:
 
  The Wildwood, NJ Transmitter will be on air from 0900 (EDT) 06 August
 until
  1800 (EDT) 07 August. Wildwood will be broadcasting as 8970 Master and
  Secondary.
 
  The Dana, IN transmitter will also be on air intermittently during this
  time period. Dana will be broadcasting as 9960 Master and possibly other
  rates and stations as well.
 
 
  So at least 2 GRIs and at different locations. That will make it pretty
  interesting.
 
  Regards
 
  Paul
 
  WB8TSL
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Re: [time-nuts] eLORAN test 6 Aug. Both Dana In. and wildwood nj

[Stan W1LE]

I am locked at 8970 GRI, have been for a few hours
No luck with 9960 GRI from this location.

Using a SRS FS700

Stan, W1LECape CodFN41sr



On 8/6/2015 4:10 PM, paul swed wrote:

not on that I can see

On Thu, Aug 6, 2015 at 12:46 PM, D W watsondani...@gmail.com wrote:


Picking up a strong signal here in North Carolina. My 2100F has been
locked to Wildwood all morning. I'm using a 5' wire whip and a home brew
preamp.

Not hearing Dana yet.

Dan


On Aug 4, 2015, at 2:34 PM, paul swed paulsw...@gmail.com wrote:

The Wildwood, NJ Transmitter will be on air from 0900 (EDT) 06 August

until

1800 (EDT) 07 August. Wildwood will be broadcasting as 8970 Master and
Secondary.

The Dana, IN transmitter will also be on air intermittently during this
time period. Dana will be broadcasting as 9960 Master and possibly other
rates and stations as well.


So at least 2 GRIs and at different locations. That will make it pretty
interesting.

Regards

Paul

WB8TSL
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[time-nuts] eLORAN test 6 Aug. Both Dana In. and wildwood nj

[paul swed]

The Wildwood, NJ Transmitter will be on air from 0900 (EDT) 06 August until
1800 (EDT) 07 August. Wildwood will be broadcasting as 8970 Master and
Secondary.

The Dana, IN transmitter will also be on air intermittently during this
time period. Dana will be broadcasting as 9960 Master and possibly other
rates and stations as well.


So at least 2 GRIs and at different locations. That will make it pretty
interesting.

Regards

Paul

WB8TSL
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