DECCA IRELAND
This map illustrates the locations of the former Decca chains in the UK. (Graphic by Jerry Proc) |
Doug Sim reports that fishing boat captains often memorized, or wrote down the Decca co-ordinates of good fishing spots. Knowing the location of good fishing spots was vital to their business. The skipper of a boat based at Peterhead said he would never allow any of the crew in the wheelhouse in case they memorized the co-ordinates from the decometers once they arrived to their prime fishing spots.
YOUGAL IRELAND - Purple
The tower at Youghal is still standing as of September 2011. Its located on farmland a few miles east of Youghal, near a village called Ardmore on Ireland's south coast.
Overall view of the unused tower at Youghal as of September 10, 2009. It's either an Eve or Balfour Beatty 300' lattice mast probably standing on a Balfour Beatty base insulator. (Decca did not always use Austin bases.) This type mast was used on many the UK sites and was the same as those in Spain, the Persian Gulf and India. Guy wire anchor points. The main guy insulators look like Austin A-4006 or A-5008 insulators while the egg insulators were made by Allied Insulators in England. John Molloy-Vickers indicates that "the eggs were usually strapped across as otherwise they would have a tendency to flashover which could interfere with the locking signal from Master. However they were useful if the main insulator shorted out in which case the station could be worked at very reduced power by removing the link across the egg but this entailed some fiddling with the tuning. Also the faulty main insulator could be found by removing the links in turn etc. Guy wire insulator detail. Guy wire anchor detail. It was wrapped with Denso protective wrap. Coil house entrance. Lead-out tube detail showing how it connects to the mast. The twist in the lead-in pipe had a reason foe being there. It could be regarded as an inductive loop and hopefully preventing a lightning current surge from flowing into the coil hut and destroying the coils The loop would thus encourage the main strike to flash across the spark gap across the base insulator rather than the one inside the hut.
The tower at Ballydavid in 2011. (A Google Earth street level photo) |
Contributors and Credits:1) John Molloy-Vickers <johnmv(at)sympatico.ca>
2) Doug <doug.sim(at)btinternet.com>
Oct 2/11