2894 INTERNATIONAL RADIO CONVENTION. NOVEHBllB 26,1927. Appendix 4. APPENDIX 4 Signal strength lICIlIe. Scale used to expre118 strength of signals (See Art. 9 of the General RegulatioDll) Antt, p. 2857. Appendix 6. Honn for ship servo Ice. POIIt, p . 2895. Ante, pp. 2860,2872. 1. Hardly perceptible; unreadable. 2. Weak; readable now and then. 3. Fairly good; readable, but with difficulty. 4. Good; readable. 5. Very good j perfectly readable. APPENDIX' 6 Hours of service for ships in the second class (Bee Cbart and Map, AppendiJ: 6 and also Arts. 13 and 20 of the Oeneral Regulatlona) Dnratlon of hours of service Zones WIIIItern limits Eastern limits (Greenwich Mean Time) 8 hOUl!l labours A Eastern Atlantic Meridian 30° W. Meridian 30° E. BOuth From Sh to lOh•••. FromOhto ah Ocean, Medlter· Coast of Green· of the coast of Africa, From l2h to 1th... From Sh to l4h ranean, North land. eastern limits of the From l6h to ISh... From lfth to ISh Bee, Baltic Mediterranean, of the From 20h to 22h... From 20h to 22h Black Sea, and of the Baltic, Meridian 00° E. to the north of Nor· way. B Indian Ocean, Eastern limit of Meridian SOo E. west- From 4h to 6h ..... From Ohto2h Eastern Arctic ZoneA. ern coast of Ceylon to From Sh to 10h.... From 4h to lOh Ocean Adam's Bridge, thence From 12h to 14h... From 12h to l4h westward around the From lOh to ISh... From l6h to l8h coast of India. From 20h to 24h C China Sea western Eastern limit of Meridian 160" E •.•••••• From Oh to 2h ..... From Ohto 6h Pacific Ocean ZoneB. From 4h to 6h ..... From 8h to lOh From 8h to 10h.... From 12h to 14h From 12h to l4h..• From l6h to 22h D • Central Pacific Eastern limit of Meridian 140" W •• __ • __ • From Oh to 2h..... FromOh t02h Ocean ZoneC. From 4h to 6h..... From4h t06h From Sh to lOh .... From Sh to lOh From 20h to 22h... From l2h to ISh From 20h to 24h E Eastern Paciflo Eastern limit of Meridian 70° W., BOuth From Oh to 2h..... From Oh to 2h OCMD ZoneD. of the coast of America, From 4h to 6h ..... From4h toah west coast of America. From lOh to ISh ... From Sh to 14h From 20h to 22h... From l6h to 22h F Western Atlantic Meridian 70° W. Meridian 30° W. coast From Oh to 2h..... From Oh t02h Ocean and GulC south of the of Greenland. From l2h to 14h... From 4h to 10h of Menco coost of Amer· From l6h to ISh... From l2h to ISh lca, east coast of From 20h to 22h... From 20h to 22h America.
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