KS C IEC 60244-5-2008 Methods of measurement for radio transmitters－Part 5：Performance characteristics of television transmitters《无线电发射机的测量方法 第5部分 电视发射机的性能特性》.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 60244 5 5： KS C IEC 60244 5:2008 2008 8 8 http:/www.kats.go.krKS C IEC 60244 5:2008 : ( ) ( ) FITI ( ) : (http:/www.standard.go.kr) ： ： 2008 8 8 2008-0415 ： ： ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 60244 5:2008 i iii .iv 1 1 2 1 2.

2、1 IEC 1 2.2 CCIR .2 3 .2 4 2 5 2 5.1 .2 5.2 3 5.3 3 5.4 3 6 , (power factor).3 6.1 .3 6.2 .3 6.3 4 6.4 4 6.5 4 7 (characteristic vision levels) .5 7.1 .5 7.2 5 7.3 (white clipper) 5 7.4 6 8 .9 8.1 .9 8.2 / .9 8.3 / .10 8.4 (group) / 11 8.5 / 12 9 .13 9.1 .13 9.2 .13 9.3 14 9.4 .16 KS C IEC 60244 5:2

3、008 ii 9.5 16 9.6 .16 10 .18 10.1 .18 10.2 2T 19 10.3 T T 20 10.4 21 10.5 21 10.6 .22 10.7 23 10.8 23 10.9 24 10.10 .24 10.11 - 25 11 .26 11.1 .26 11.2 .27 11.3 28 11.4 28 11.5 30 12 .30 12.1 .30 12.2 31 12.3 (penultimate clock run-in-bit) .32 13 .32 13.1 .32 13.2 32 13.3 FM ( ) 33 13.4 AM 33 13.5 2

4、 .33 A( ) 50 A.1 IEV CCIR 50 A.2 .51 A.3 54 A.4 67 A.5 (eye-height) ( ) .72 B( ) 73 KS C IEC 60244 5:2008 iii , . IEC 60244 5： 1971 IEC 60244 5A： 1971 IEC 60244 5B： 1975 (Amendment) 1： 1978 IEC 60244 5C： 1971 A B . KS C IEC 60244 5:2008 iv 1992 2 IEC 60244 5, Methods of measurement for radio transmi

5、ttersPart 5： Performance characteristics of television transmitters , . IEC 60244 . , IEC 60244 , . , CCIR (CCIR), . KS C IEC 60244 5:2008 5： Methods of measurement for radio transmitters Part 5： Performance characteristics of television transmitters 1 . 2. . , . . , . . , . 2 . . . IEC ISO . 2.1 IE

6、C IEC 60244 1： 1968, Methods of measurement for radio transmitters Part 1： General conditions of measurement, frequency, output power and power consumption( ) Amendment 2, 1989(Amendment 2 244 1A ) IEC 60244 10： 1986, Methods of measurement for radio transmitters Part 10： Methods of measurement for

7、television transmitters and transposers employing insertion test signals IEC 60244 12 1： 1989, Methods of measurement for radio transmitters Part 12： Guideline for drawing up descriptive leaflets for transmitters and transposers for sound and television broadcasting Characteristics to be specified I

8、EC 60244 12 2： 1989, Methods of measurement for radio transmitters Part 12： Guideline for KS C IEC 60244 5:2008 2 drawing up descriptive leaflets for transmitters and transposers for sound and television broadcasting Specification sheets IEC 60244 13： 1991, Methods of measurement for radio transmitt

9、ers Part 13： Performance characteristics for FM sound broadcasting 2.2 CCIR CCIR Recommendation 468 4： 1986, Measurement of audio frequency noise voltage level in sound broadcasting CCIR Recommendation 567 1： 1986, Transmission performance of television circuits designed for use in international con

10、nections CCIR Recommendation 653： 1986, Teletext systems CCIR Report 624 3： 1986, Characteristics of television systems CCIR Report 795 2： 1986, Transmission of two or more sound programmes or information channels in television 3 3.1 (television transmitter) “ ” (video) (audio) , . 3.2 A A.3 3.3 IEC

11、 60244 12 1 IEC 60244 12 2 . 3.4 (standard test signals) B . 4 . . VSWR 1.05 . 5 5.1 ( A ). , KS C IEC 60244 5:2008 3 . 34 dB (directional coupler) . 5.2 , VSB RF . (group delay) ( A A.3 ). . 5.3 CCIR 624 ( A A.3 ). , , . , . . a) CCIR 624 ( A A.3 ). 7. . b) . 6. . c) CCIR 624 ( A A.3 ). 5.4 IEC 602

12、44 1 . 6 , (power factor) 6.1 (Peak envelope power) . (W) (kW) . , . IEC 60244 1 . 6.2 1 a) . KS C IEC 60244 5:2008 4 Pm (calorimetric test load) (milliwattmeter) (attenuator) . RF . 6.3 (A1) . FM . AM ( M) , m = 90 % 1 kHz . 6.4 6.4.1 . 6.4.2 . 6.3 . (Pc), (Pa) IEC 60244 1 . 1 , ( B A3 ). AM , 54 %

13、 . 2 . . 6.5 (Pm) , (Pp) . Pp= Pmk 625 (line system) k =23.597.464cb+ b/c： (blinking level) . 1 b) . (L ) Pm k=1.50 . Pm k=1.39 . RF (Up) , (Pp) . KS C IEC 60244 5:2008 5 Pp= ZU2pZ RF ( 50 ). , . 7 (characteristic vision levels) 7.1 , . , . (white clipper) . (7.2 ). , (7.3 ). . (picture content) ( )

14、 (hum) . 7.2 7.2.1 2 a) . VSB (zero carrier pulse) . 7.2.2 ( B ) (B1) . 7.2.3 CCIR 624 ( A A.3 ). , 2 d) . , 2 e) . . 7.3 (white clipper) ( ) KS C IEC 60244 5:2008 6 7.3.1 (sub-carrier) . 7.3.2 2 a) . VSB . 7.3.3 , (A2) ( B ). , (A3s)( B ). B1 A2 . 7.3.4 A2 B1 (w1) . (c1) 2(b) . , 10 % . (w2) (c2) .

15、 (A3s) . x = 350 mV s = 700 V (s1) (peak-to-peak) 2(c) . . (s2) . 7.3.5 . 2211cwcw 100 % . 21ss100 % 7.4 7.4.1 KS C IEC 60244 5:2008 7 . . . . 7.4.2 2 a) . VSB . 7.4.3 (A1) (A2) ( B ). , ITS . , (B3) (B2) ( B ). 7.4.4 7.4.4.1 (A1) (b1) (c1) 2(f) . (A2) (A1) (b2) (c2) 2(b) . 7.4.4.2 (A2) . (b) (c) .

16、(B2) (w1) (c1) 2(h) . (B2) (B3) (w2) (c2) 2(i) . 7.4.4.3 (A2) . (b) (c) . 700 mV KS C IEC 60244 5:2008 8 A2 . (b1) (c2) (b1) (c2) . 7.4.4.4 (A2) . (h1) (h2) ( ) (c) ( 2 ). , . . . 7.4.4.5 (A2) . 2 (b1), (w1) (c1) 2(b) , (b2), (w2) (c2) 2(b) . 7.4.5 7.4.5.1 (A2) 17(SECAM) ITS (b1) (c1) 2(j) . (A2) (A

17、1) (b2) (c2) 2(k) . 7.4.5.2 700 mV (A1) ITS . (b1) (c2) (b1) (c2) . 7.4.5.3 ( ) (A2) . (h1) (h2) ( ) (c) ( 2 ). . . 7.4.5.4 (A2) . KS C IEC 60244 5:2008 9 2 (b1), (c1) , (b2) (c2) . , . 7.4.6 a) . dBlog 2021ccb) . 2211cbcb 100 % c) ( ) . 2211cwcw 100 % d) . bcbc11100 % bcbc22100 %, bb1100 % bb2100 % e) 14 , . f) . ch1100 % g) . ch2100 % h) f) g) . . . 8 8.1 . , . 8.2 / KS C IEC 60244 5:2008 10 8.2.1 / . / “ ” “ ” . 8.2.2 3 a) . , (sweep generator) (oscilloscope) . RF . , RF . 8.2.3 A4s . 8.2.4 x . s (convenient value), 20 % 3(b) . , x .