7. DETAILS OF MERCASIS

MERCAS AREA I

Co-ordinates

From Cape Lopatka, 51° North—158° East; by rhumb line to 40° North—165° East; thence due East to 170° East; thence due South to 30° North; by rhumb line to 15° North—180°, thence due South to 05° South; thence due West to 170° East; thence due North to the Equator; along the Equator to 160° East; thence by rhumb line to the most northern point of New Ireland 03° South—151° East; thence along the West Coast of New Ireland and the North Coast of New Britain and New Guinea to 01° South—130° East; thence due North to 05° North; thence due West to the North-west Coast of Borneo; along the North-west Coast of Borneo to 07° North—118° East; thence by rhumb line to the Coast of French Indo-China at 16° North—108° East; thence northerly along the East mainland Coast of Asia.

Primary Station. Schedules—GCT Call. Frequencies.
Guam 0000, 0600, 1200 NPN 484, 4,955, 9,325, and 1800 13,530, 17,885, 21,760
Secondary Station.
None.
Coastal Stations.
None.

MERCAS AREA III

Co-ordinates

From Cape Lopatka, 51° North—158° East; by rhumb line to 40° North—165° East; thence due East to 170° East; thence due South to 30° North; by rhumb line to 15° North—180°, thence due South to 05° South; thence East along 05° South to 110° West; thence by rhumb line to 40° North—150° West; thence by rhumb line to 55° North—140° West; thence due East to the Coast of Canada; North along the West Coast of Canada and West along the South Coast of Alaska to Bering Strait; thence South along the East Coast of Asia to Cape Lopatka.

Primary Station. Schedules—GCT Call. Frequencies.
Honolulu 0100, 0700, 1300, NPM 113, 4,525, 9,050, and 1900 13,575, 17,370, 21,990
Secondary Station.
None.
Coastal Stations.
None.

MERCAST AREA V

Co-ordinates

From the West Coast of Canada at 55° North due West to 55° North—140° West; thence by rhumb line to 40° North—150° West; thence by rhumb line to 05° South—110° West; thence due East to 95° West; thence by rhumb line to the Mexican-Guatemala border; thence northerly along the West Coast of North America to 55° North.

Primary Station. Schedules—GCT Call. Frequencies.
San Francisco 0300, 0900, 1500, NPG 114·95, 4,392, 9,255, and 2100 12,966, 16,265
Secondary Station.
None.
Coastal Stations. Call. Working frequency.
Estaban VAE 474
Bull Harbour VAG 470
Victoria VAK 441
Prince Rupert VAJ 436

MERCAST AREA VII

Co-ordinates

(Pacific Portion)

From the Antarctic due North along 110° West to 05° South; thence due East to 95° West; thence by rhumb line to the Mexican-Guatemala border; thence southerly along Central and South American West Coast to 53° South—74° West; thence due South to the Antarctic.

(Atlantic Portion)

From the Mexican—British Honduras border on Yucatan Peninsula due East along 18° North to 85° West; thence North along 85° West to the Western tip of Cuba; East along the North Coast of Cuba to Cape Maisi; thence by rhumb line to Mathewtown on Great Inagua; along the South Coast of Great Inagua departing due East along 21° North to 70° West; thence by rhumb line to 20° North—65° West; thence by rumb line to 19° North—62° West; thence by rhumb line to 17° North—60° West; thence to Barbados Island; thence to the British Guiana—Venezuela border.

Primary Station. Schedules—GCT Call. Frequencies.
Balboa 0200, 0800, 1400, NBA 147·85, 5,006, 11,080, and 2000 17,127·2
Secondary Station.
None.
Coastal Stations. Call. Working frequency.
Trinidad VPL 375
Jamaica VQI 460

MERCAST AREA IX

Co-ordinates

From the Antarctic North along 160° East to 45° South; thence by rhumb line to 30° South—170° East; thence due North to 05° South; East along 05° South to 110° West; thence South along 110° West to the Antarctic.

Primary Station. Schedules—GCT. Call. Frequency. Call. Frequency. Call. Frequency.
Wellington 0000-0200 ZLW3 8,225 ZLW4 12,600 ZLW5 16,465
0400-0600 ZLW3 8,225 ZLW4 12,600 ZLW5 16,465
0800-1000 ZLW3 8,225 ZLW4 12,600 ZLW5 16,465
1200-1400 ZLW3 8,225 ZLW4 12,600 ZLW5 16,465
1600-1800 ZLW3 8,225 ZLW4 12,600 ZLW5 16,465
2000-2200 ZLW3 8,225 ZLW4 12,600 ZLW5 16,465
Secondary Station.
None.
Coastal Stations. Call. Working frequency.
Auckland ZLD 445
Wellington ZLW 415
Awatua ZLB 405
Apia ZMA 375
Rarotonga ZKR 483