[time-nuts] Re: Anyone else have their Loran receiver locked?

[Shaun Merrigan]

I recommissioned my SRS FS700 (Option 1 unit) several days ago. It has been locked continuously for 84 hours (no unlocks reported).  It is locked one of the slave stations as it also reports that there is no master station.  At the moment  frequency difference with the reference (GPS,  Z3801) is 2E-11 .   At this point I think I will put it in a rack with the Austron 2100F and let them run (why not?). 

I did note that the FS700 took much longer (45min - 1 hour) to achieve lock than did the Austrons (2100F, 2100R).   My antenna is an LF engineering L-400B with about 16dB of attenuation in the line to get the best s/n.  I am using the 420 ohm resistor hack to make  the FS700 believe it is feeding an active antenna. 

With the changing geopolitical climate perhaps eLORAN will be here to stay. 

Shaun M (Central Alberta)

-----Original Message-----
From: Rodger via time-nuts <time-nuts at lists.febo.com> 
Sent: Friday, September 22, 2023 9:15 AM
To: 'Discussion of precise time and frequency measurement' <time-nuts at lists.febo.com>
Cc: 'Don Moman VE6JY' <ve6jy.1 at gmail.com>; rodger_adams at yahoo.com
Subject: [time-nuts] Re: Anyone else have their Loran receiver locked?

I'm trying my best to receive it in Charlotte, NC., though I realize it's probably a fool's errand.  I have an Austron 2100 T with loop antenna.  I've seen a green tracking light twice in the last few weeks.  I'm trying to set up some monitoring with a virtual chart recorder to see if it might actually be locking occasionally.  My 2100T has a GPIB interface so might see if it could be used to catch an occasional intermittent lock.  I'm not expecting much, but it's fun to try.

Rodger


-----Original Message-----
From: Don Moman VE6JY via time-nuts <time-nuts at lists.febo.com>
Sent: Thursday, September 21, 2023 11:18 PM
To: Discussion of precise time and frequency measurement <time-nuts at lists.febo.com>
Cc: Don Moman VE6JY <ve6jy.1 at gmail.com>
Subject: [time-nuts] Re: Anyone else have their Loran receiver locked?

100 khz seems active here in Alberta.  here's my KIWI display a few minutes
ago:
[image: 2023-09-21 21_15_51.jpg]


On Thu, Sep 21, 2023 at 5:36 PM Skip Withrow via time-nuts < time-nuts at lists.febo.com> wrote:

> Well, I think I am a little late to the eLoran party.  After trying 
> the old Austron 2100 in the city with no (well, a little) success. I 
> took it up to the mountain house yesterday to try it in a quieter 
> environment.  No luck last night, so I checked a west coast SDR 
> receiver and see no sign of the eLoran signal.
>
> I assume that the test has been ended.  If/when the eLoran signal 
> comes back I would be interested in knowing.  Or, if someone is still 
> locked up please let us know.  My assumption is that the tests are with GRI 5990.
>
> Regards,
> Skip Withrow
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