Английская Википедия:CCIR System K

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Шаблон:Short description

Файл:Analog-TV-Systems.jpg
Analog TV systems global map, with System K in pink.

CCIR System K is an analog broadcast television system used in countries that adopted CCIR System D on VHF, and in Benin, Guinea, Republic of the Congo, Togo, Senegal, Burkina Faso, Burundi, Ivory Coast, Gabon, Comoros, Democratic Republic of the Congo, Madagascar, Mali, Nigeria, Réunion, Rwanda, Chad, Central African Republic, French Polynesia, New Caledonia, Wallis and Futuna, Guadeloupe, Martinique, Saint Pierre and Miquelon and French Guiana.[1]

It is identical System D in most respects.[2][3][1] Used only for UHF frequencies, its paired with SECAM or PAL color systems.

Specifications

Some of the important specs are listed below.[4][2][5]

Television channels were arranged as follows:[3]

System K UHF channels
Channel Video carrier (MHz) Audio carrier (MHz)
21 471.25 477.75
22 479.25 485.75
23 487.25 493.75
24 495.25 501.75
25 503.25 509.75
26 511.25 517.75
27 519.25 525.75
28 527.25 533.75
29 535.25 541.75
30 543.25 549.75
31 551.25 557.75
32 559.25 565.75
33 567.25 573.75
34 575.25 581.75
35 583.25 589.75
36 591.25 597.75
37 599.25 605.75
38 607.25 613.75
39 615.25 621.75
40 623.25 629.75
41 631.25 637.75
42 639.25 645.75
43 647.25 653.75
44 655.25 661.75
45 663.25 669.75
46 671.25 677.75
47 679.25 685.75
48 687.25 693.75
49 695.25 701.75
50 703.25 709.75
51 711.25 717.75
52 719.25 725.75
53 727.25 733.75
54 735.25 741.75
55 743.25 749.75
56 751.25 757.75
57 759.25 765.75
58 767.25 773.75
59 775.25 781.75
60 783.25 789.75
61 791.25 797.75
62 799.25 805.75
63 807.25 813.75
64 815.25 821.75
65 823.25 829.75
66 831.25 837.75
67 839.25 845.75
68 847.25 853.75
69 855.25 861.75

System K1

Файл:VHF Usage.svg
Plan showing VHF frequency ranges for ITU Systems

French overseas departments and territories used a variation named System K1 for broadcast in VHF.[6] UHF channels were similar to K.[3]

System K1 VHF channels
Channel Video carrier (MHz) Audio carrier (MHz)
2 52.25 58.75
3 60.25 66.75
4 175.25 181.75
5 183.25 189.75
6 191.25 197.75
7 199.25 205.75
8 207.25 213.75
9 215.25 221.75
10 223.25 229.75

See also

Notes and references

Шаблон:Reflist

External links

Шаблон:Video formats Шаблон:Analogue TV transmitter topics

  1. 1,0 1,1 Шаблон:Cite web
  2. 2,0 2,1 Шаблон:Cite book
  3. 3,0 3,1 3,2 Шаблон:Cite web
  4. Reference Data for Radio Engineers, ITT Howard W.Sams Co., New York, 1977, section 30
  5. Шаблон:Cite web
  6. Шаблон:Cite web