[time-nuts] Re: Eloran long test from now to August or September

[Bob Camp]

Hi

Loran basics:

Each “chain” has a repetition rate. One hopes it is unique. That allows you to lock into this or that chain. 

In a “proper” Loran chain, there is one station that sets a bit to say “I am the master”. The other stations set bits to say which “slave” they are. It appears that with eLoran they are not doing the “master” part of this. 

There are some grubby details. You don’t want all the signals to arrive on top of each other. There needs to be a “who goes when” discipline. On a “proper” system, this all related to when the master did it’s thing. To some extent that was to make the documentation easier. (= there are a lot of ways to do it). 

So, simply put:

Key in the repetition rate and you know what chain you have. 

Look at the bits and you know which station is which.

Not to crazy.

Bob
> On Sep 25, 2023, at 2:51 PM, Gregory Muir via time-nuts <time-nuts at lists.febo.com> wrote:
> 
> I would like to pose a rather ignorant question to the group relating to Loran reception.  My participation has been very small since the Loran system hasn’t been on my main interest list except for checking in to see if the three stations that are testing eLoran in the Pacific northwest are still functioning (which they are).
> 
> 
> 
> I am not knowledgeable about how many on this list are totally decoding the Loran signal to determine what station they are listening to or are simply looking at the pulse trains.  With the plethora of Loran C stations still in operation around the world as compared to the more rare eLoran ones how many are actually identifying the type of signal source that they receive?
> 
> 
> 
> Greg
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