Shortwave Time Signals

Radio Record, Volume II, Issue 16, 2 November 1928, Page 32

Shortwave Time Signals

(THE Dominion Astronomer (Dr. C : Ii. Adams) advises: "The follow- | : information has been received with to short-wave time signals :-~ (1) From the Hydrographer of the

Navy, Admiralty, London. announcing the establishment of a time signal fropa, the: Chelsmford (5SW) station on a wave-length of 24 metres, power 20 kw. The signal is sent twice daily except Saturdays and Sundays from the Greenwich Observatory at 74) and 21h. G.M.T.-one hour earlier eiring the period of British Summer Time. The signal consist of 6 dots of one second interval, the commencement of the final dot being the exact hour. (2) From the United States Naval Observatory. Washington, D.C. on T4.7 metres at 03h. and 17h. G.AMLT. and | on 87.4 metres at O3h.. OSh, and 17h., G.MLT. Cell sign NAA. The signal is the usual American one as described in (3) below. . (3) From the Elgin Observatory, Plgin National Wateh Company, Flgin, Dinots United States. Call sign WNBT on a Wave-length of 35.5 metres. The are sent in uccordance with the following programme :-- 0 hrs. G.M..T. daily, except Saturday and Sunday. 6 hrs. G.M.T. daily. 14 hrs. G.M.T. daily, except Sunday. 16 hrs. GALT. daily, except Sunday. 18 hrs. GMAT. daily, except Saturday and Sunday. 20 hrs. G.M.T. daily, except Saturday and Sunday. 2° lis. G.M.T. daily, except Saturday and Sunday. The signals at 0Gh. G.M.T. has been frequently heard at the Dominion Observatory and elsewhere in New Zealand. The signals begin in each case. exactly 5 minutes before the hour stated in the table and consists of a regular series of dots every second with the twenty-ninth, fifthy-tifth, fifty-sixth, fifty-seveuth. fifty-cighth and fifty-ninth onitted. I shall be obliged 3 any of your readers whe hear these signals would kindly report to the Observatory. , ?