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.

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

Specifications Some of the important specs are listed below:Reference Data for Radio Engineers, ITT Howard W.Sams Co., New York, 1977, section 30 Frame rate: 25 Hz Interlace: 2/1 Field rate: 50 Hz Lines/frame: 625 Line rate: 15.625 kHz Visual bandwidth: 6 MHz Vision modulation: Negative Preemphasis: 50 μs Sound modulation: FM Sound offset: +6.5 MHz Channel bandwidth: 8 MHz

Television channels were arranged as follows:

+ 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

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

+ 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 Broadcast television systems Television transmitter Transposer

Notes and references

External links World Analogue Television Standards and Waveforms