[time-nuts] Re: eLORAN West coast stations off air due to Air con.

[Jeff Huselid]

Greetings,

    Can you provide some information regarding the recent E-Loran-C tests - such as site locations and power levels? I have been copying them here with my Austron 2100F and loop antenna for about a year, but not as strong as the old system. Any idea how long the tests might continue, after they repair the A/C? There doesn't seem to be much public information out there regarding this.

Best regards,
Jeff Huselid
Valley Communication Engineering
3145 South De Wolf Avenue
Fresno, CA 93725
Phone 559 268 3311
Dun & Bradstreet DUNS 36-334-2460
Precision Services Since 1977

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From: jmfriedt via time-nuts <time-nuts at lists.febo.com>
Sent: Thursday, August 7, 2025 9:47 AM
To: paul swed via time-nuts <time-nuts at lists.febo.com>
Cc: jmfriedt <jmfriedt at femto-st.fr>
Subject: [time-nuts] Re: eLORAN West coast stations off air due to Air con.

Thanks for confirming, I hope the A/C issue can be solved. In the mean
time I had a quick look at the emission from Anthorn and can confirm
the +/-1 us PPM modulation is visible as +/-36 degree phase modulation
of each pulse at
https://github.com/jmfriedt/kiwisdr_timetransfer/blob/main/eloran_PEN_phase.png
so if the soft to hard bit detection is that simple, the challenge will
be binary sentence decoding if the signal matches the documentation, and
implementing FEC.

Thanks for the support, Jean-Michel

> Hello to the time-nut group. Thanks for giving me a heads up on the
> eLORAN signals on the West coast. You are correct all 3 stations are
> off the air for the moment.
> This is due to air conditioning issues that are being worked on.
> The buildings and physical systems are quite old so failures are
> expected. It will be a bit but the stations will return to operation.
> I had been monitoring but have been working on remote interfaces for
> the old austron LORAN C receivers. So not actually logging or
> listening. Appreciate your emails.
> Paul
> WB8TSL
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--
JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe, 25000
Besancon, France
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