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Low Frequency Radio Transmission

The annual Christmas Eve message will be transmitted in Morse code on December 24th at 08:00 utc (UK Time) on 17.2 kHz. Tuning up commences at about 07:30 utc.

If interested and you do not have a suitable receiver in the conventional sense, you can use the sound card in your pc and this software https://sites.google.com/site/sm6lkm/saqrx/ together with a decent length of wire.

The transmission will be screened live at Y ouTube Channel.

Clive

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0 Ross Currie over 5 years ago

AncientMariner:

. . . back in 1976 I visited the Decca Navigator Green Slave at Neston, about 7 miles north of where we live.

Sometime in the late 1990s, just before the shut-down, I peered through the wire at the Decca Navigator Red Slave (North British Chain) located at Clanrolla, Northern Ireland.

You won't find Clanrolla on Google Maps (I think it might be a townland) but if you find Castor Bay Road and follow it north of of the M1 towards the lough, then you are in the right sort of area. I can't actually remember exactly where it was myself!

Unfortunatley I don't have any photographs of the station. It was dismantled and removed sometime in the early 2000s and as far as I am aware, nothing remains on site.

As for the eLORAN trials, the general story from beginning to end seems to be summarised in the following Notices to Mariners from the Comissioners of Irish Lights. The trials actually go back a lot further than I initally thought!

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2007-04-eloran-transmissions.aspx

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2007-06-eloran-transmissions.aspx

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2008-02-eloran-transmissions.aspx

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2012-13-eloran.aspx

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2015-11-eloran-trial-discontinued.aspx
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0 Ross Currie over 5 years ago

AncientMariner:

. . . back in 1976 I visited the Decca Navigator Green Slave at Neston, about 7 miles north of where we live.

Sometime in the late 1990s, just before the shut-down, I peered through the wire at the Decca Navigator Red Slave (North British Chain) located at Clanrolla, Northern Ireland.

You won't find Clanrolla on Google Maps (I think it might be a townland) but if you find Castor Bay Road and follow it north of of the M1 towards the lough, then you are in the right sort of area. I can't actually remember exactly where it was myself!

Unfortunatley I don't have any photographs of the station. It was dismantled and removed sometime in the early 2000s and as far as I am aware, nothing remains on site.

As for the eLORAN trials, the general story from beginning to end seems to be summarised in the following Notices to Mariners from the Comissioners of Irish Lights. The trials actually go back a lot further than I initally thought!

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2007-04-eloran-transmissions.aspx

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2007-06-eloran-transmissions.aspx

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2008-02-eloran-transmissions.aspx

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2012-13-eloran.aspx

https://www.irishlights.ie/safety-navigation/notices-to-mariners/2015-11-eloran-trial-discontinued.aspx
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Low Frequency Radio Transmission

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