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DSCN6200Rare Red and Green segment ships Radio Room clock by Tempora, a trade name of Smiths, circa 1965



 For sale is this very fine Rare Red and Green segment ships Radio Room clock by Tempora, a trade name of Smiths, circa 1965 . Fully signed original dial and fine Astral eight day movement in its full brass bulkhead case retaining its original thick bevelled front glass.The brass case showing slight denting from service life.( Could be pushed out). The clock is in full working order and keeping accurate time. Very rare in this condition. Size dial 6 inches diameter by 4inches deep with the back plate of 8 inches diameter. Mounted on a wooden back plate.SOLD

All stations using 2182 kHz were required to maintain a strictly enforced three-minute silence and listening period twice each hour, starting at h+00, h+30. This allowed any station with distress, urgent or safety traffic the best chance of being heard at that time, even if they were at some distance from other stations, operating on reduced battery power or perhaps reduced antenna efficiency, as for example from a dismasted vessel. As a visual aide-memoire, a typical clock in a ship's radio room would have these silence periods marked by shading the sectors from h+00 to h+03 and from h+30 to h+33 in green. Similar sectors were marked in red for what used to be the corresponding silence and listening period on 500 kHz between h+15 and h+18 and from h+45 to h+48.[4]These silence periods are no longer required as the introduction of GMDSS has produced alternative automatic watchkeeping systems and the 500 kHz band is no longer in use for maritime traffic.



Oliver Sargent Antiques,
Old Market Hill, Sturminster Newton, Dorset, DT10 1QU
Personal callers strictly by appointment only.

Telephone 07804 225614