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Code · STATUTES-AT-LARGE · Vol. 63 STAT. · Chapter XIII

Chapter XIII.

312 words·~1 min read·/statutes-at-large/vol-63/chapter-xiii-6533777·

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Chap. XIII, art. 33 RR) (727–733) 727 § 7. As an exception to the provisions of 714, 715 and 716 and on condition that signals of distress, urgency and safety, and calls and replies are not interfered with, the frequency 500 kc/s may also be used: 728 *a)* for the transmission of a single short radiotelegram exclusively by ship stations of Australia, India, New Zealand and Pakistan when operating in proximity to the coast of their respective countries;1)728.1 1) Certain coast stations of India and Pakistan are also permitted temporarily to transmit a single short radiotelegram on 500 kc/s. 729 *b)* outside areas of heavy traffic for direction-finding but with discretion. 730 § 8.
(1)Ship stations employing class A1 or A2 emissions in the authorized bands between 405 and 535 kc/s must use, wherever practicable, working frequencies chosen from amongst the following: 425, 454, 468 and 480 kc/s. In addition, the frequency 512 kc/s may be used in regions 1 and 3 and the frequency 448 kc/s in region 2. 731
(2)No coast station is authorized to transmit on these working frequencies allocated for the use of ship stations on a world wide basis or on the working frequency allocated for the use of ship stations in the region in which the coast station is situated. 732
(3)In regions 1 and 3 the frequency 512 kc/s may also be used by ship and coast stations as a supplementary calling frequency when 500 kc/s is being used for distress purposes. *D.**Watch.* 733 § 9.
(1)In order to increase the safety of life at sea and over the sea, all stations of the maritime mobile service normally keeping watch on frequencies in the authorized bands between 405 and 535 kc/s must, during their hours of service, take the necessary measures to ensure watch on the 63 Stat. 1858 (734–739) (
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