[time-nuts] eLORAN on the air for 30 days

Bob Camp kb8tq at n1k.org
Tue Oct 25 18:38:11 EDT 2016


Hi

It is indeed difficult to see how a “generic” system will be able to do as well as GPS. 
It is also tough to see how systems that are designed with GPS time performance
in mind (100 ns is trivial) will do with a degraded signal. 

Bob

> On Oct 25, 2016, at 5:20 PM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:
> 
> Hi,
> 
> The usefulness of alternative signals is less and less debated. There are some strong opponents to eLoran. At the same time, the use of precision timing and the dependency, the trouble modes etc. is to some degree still dawning on decision makers. eLoran still have some issues due to the frequency range used. Accepting foreign [sic] signals remains somewhat of an issue. Useful and practical use of network for backup remains to be to be seen in wider use. The popular options discussed is neither practical or easy to deploy. Then again, I'm biased in that regard.
> 
> 26 Jan did some good, and upcoming leap-second comes very timely in that regard.
> 
> Cheers,
> Magnus
> 
> On 10/25/2016 09:53 PM, Bob Camp wrote:
>> Hi
>> 
>> Given that the transmit end of these systems is actually the cheap. quick, and easy
>> part of it (even with GPS), not making a decision for years is a bad thing. The longer
>> they push out a system decision, the further out any sort of target use gets. Running
>> Loran with antiques in my or your basement does not count in this regard. What
>> counts is putting it into any sort of infrastructure use. That will *only* happen if
>> regulations require it. Even if they do, it’s a “several decades” sort of process
>> to make that all happen.
>> 
>> Bob
>> 
>> 
>>> On Oct 25, 2016, at 3:24 PM, paul swed <paulswedb at gmail.com> wrote:
>>> 
>>> Yes
>>> I think we are struggling with what to do. Support a low cost solution or
>>> invest in yet another satellite system at $$$$$$ that went bust and is
>>> working its way back to life.
>>> Then it hits the government. God knows the answer to that. Goes to the
>>> highest bidder. :-)
>>> Best get off that thread. Not useful.
>>> Signals running fine and everything here is happy. The Austrons and SRS.
>>> All down to the -11th and thats on a so so GPSDO.
>>> Regards
>>> Paul.
>>> 
>>> On Tue, Oct 25, 2016 at 2:51 PM, Magnus Danielson <
>>> magnus at rubidium.dyndns.org> wrote:
>>> 
>>>> It's interesting in that it's clearly not dead yet, rather the opposite.
>>>> 
>>>> Cheers,
>>>> Magnus
>>>> 
>>>> On 10/25/2016 04:33 PM, paul swed wrote:
>>>> 
>>>>> Bob
>>>>> The system works and they are using the system for various demonstrations
>>>>> to government types. It is indeed Washingtons speed to resolution thats
>>>>> taking the time.
>>>>> So my crystal ball says nothing at all on what and when.
>>>>> But that said the fact that its on for a month lets me check some
>>>>> references.
>>>>> Regards
>>>>> Paul
>>>>> WB8TSL
>>>>> 
>>>>> On Tue, Oct 25, 2016 at 7:33 AM, Bob Camp <kb8tq at n1k.org> wrote:
>>>>> 
>>>>> Hi
>>>>>> 
>>>>>> Has there been any indication of just what they eventually will be doing?
>>>>>> Is this a never ending series of experiments or do they now have plans
>>>>>> to put something more perminanalt on the air?
>>>>>> 
>>>>>> Bob
>>>>>> 
>>>>>> On Oct 24, 2016, at 3:23 PM, paul swed <paulswedb at gmail.com> wrote:
>>>>>>> 
>>>>>>> The Wildwood, NJ eLoran transmitter will be continuously broadcasting
>>>>>>> 
>>>>>> from
>>>>>> 
>>>>>>> 0900 (EST) on 21 October 2016 through 1200 (EST) on 22 November 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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