KS C IEC 60244-3-2008 Methods of measurement for radio transmitters-Part 3:Wanted and unwanted modulation《无线电发射机的测量方法 第3部分 有用调制和无用调制》.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 60244 3 3: KS C IEC 60244 3:2008 2008 8 8 http:/www.kats.go.krKS C IEC 60244 3:2008 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2008 8 8 2008-0415 : : ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 60244 3:2008 i . ii 1 1 2 1 1 3 1 4 4 5

2、 .10 6 15 2 7 .17 8 21 9 ( ) , .22 10 25 11 26 3 12 , / 27 13 ( ) 30 4 14 .32 15 32 16 .35 5 ( ) KS C IEC 60244 3:2008 ii 1972 IEC 60244 3, Methods of measurement for radio transmitters Part 3: Wanted and unwanted modulation . , 3 . 3 . , (I.T.U) (C.C.I.T.T) (C.C.I.R) . 3 (IEC 60244 3A ) . 5: (hum)

3、. 3 (IEC 60244 ) , . Publication 60244 1(First edition, 1968) Part 1: General Conditions of Measurement, Frequency, Output Power and Power Consumption Publication 60244 1A(First edition, 1968): First Supplement to Publication 60244 1(1968) Appendices Publication 60244 2(First edition, 1969) Part 2:

4、Bandwidth, Out-of-band Power and Power of Non-essential Oscillations(KS C IEC 60244 2 ) Publication 60244 2A(First edition, 1969): First Supplement to Publication 60244 2(1969) Appendices Publication 60244 2B(First edition, 1969): Second Supplement to Publication 60244 2(1969) Modulating Signals for

5、 the Measurement of Bandwidth and Out-of-band Power of Transmitters for Telephony and Sound Broadcasting Publication 60244 5(First edition, 1971) Part 5: Measurement Particular to Transmitters and Transposers for Monochrome and Colour Television(KS C IEC 60244 5 ) Publication 60244 5A(First edition,

6、 1971): First Supplement to Publication 60244 5(1971) Appendics . 4: / (Amplitude/ Frequency Characteristics and Non-linearity Distortion in Transmitters for Radiotelephony and Sound Broadcasting)(KS C IEC 60244 4 ) 6: (Cabinet Radiation and Terminal Interference Voltage). 3 . IEC 60244 KS C IEC 602

7、44 3:2008 iii 1) 2) ( ) KS C IEC 60244 5 * . * 5 . * 5 . 6 * 60244 2 3 2 4 * 60244 3 5 * 2) 4 1) 1, 2, 3 2)60244 1 3 1), 2)1) 2 II* 2 / 2) 3 2) KS C IEC 60244 3:2008 3: Methods of measurement for radio transmitters Part 3: Wanted and unwanted modulation 1 . . . . , . , . IEC , . IEC , . . IEC 60244

8、1 3. . 2 IEC 60244 1 , IEC 60244 3 . , . , KS C IEC 60244 5 . , IEC . 1 3 KS C IEC 60244 3:2008 2 , . 3.1 (classifications of emissions) (1) , (2) (3) (4) . 1) 0 , . , . 2) , 1 1 , , 3) : , 4) , ( , ) C.C.I.R B . , , 1968 (Radio Regulations) , IEC 60244 1A B . 1. , . . 3. 4. . 2 . 3.2 (modulated val

9、ue of deviation) , a - , . 1 . “ ” A , A “ ” . A . , . , , Ap An . Ap An . , “ ” . 3.3 (modulation factor) 3.2 . , - , KS C IEC 60244 3:2008 3 . , ( ) ( ) . , “ ” . a , a , A a A = A A = 0 Ap, An , 1 . . , . . . 2 , . 3.4 (utilization factor) - . (4.2 ), . . , “ ” “ ” “ ” “ ” - . , . “ ” , “ ” . . .

10、 KS C IEC 60244 3:2008 4 , . . . - C.C.I.R . , , , . . , . 4 4.1 ( ) , . (*) , . 4.2 a) . , . 1) 1 (A2, A2H) (A2*) (A3, A3H) (A4*), 2 ( ) (half tone) 2) (A3A, A3B) (A4A*), 2 (A7A, A7B, A9B) 3) (A3J) (A7J) , IEC 60244 1A C . b) . , , 1 KS C IEC 60244 3:2008 5 . , d.c. . , . 4.3 . 4.3 4.3.1 . 4.3.2 4.

11、2 a) 1) 2) . “ ” “ ” . 14. 4.3.3 , 15. 16. . 4.4 4.4.1 . , . 3.2 , “ ” , . 4.4.2 a) ( ) ( ) . b) / . 4.4.3 4.2 . a) ( , ; KS C IEC 60244 4 ), (KS C IEC 60244 2 ) , . KS C IEC 60244 3:2008 6 b) , a) . , (KS C IEC 60244 4 ) . c) , 0 , . b) . , (terminal load) ( ) (IEC 60244 1 18. 20. ) . 4.5 4.5.1 3.4

12、 , . 4.5.2 % dB , . 4.5.3 4.2 , . u . u =maxAA(4.5.3a) A : Amax : ( 2 3, 4 ) . u =omaxomaxAaAaAA=(4.5.3b) : max : , ( ) Ao : = Ao , , 0 . = KS C IEC 60244 3:2008 7 max , 1(unity, 0 % 0 dB) , ( ) . 1(unity) , , 1 . Ao= 0 , (4.5.3b) . 5 u =maxaa(4.5.3c) , 16 dB . 4.5.4 8. 4.6 4.6.1 % , . 4.6.2 , 4.2 a

13、) - . Ap An , . Mp Mn . mp=opAA onnAAm= (4.6.2a) Ao: ( 2 3 ) . mp=ooAAa oonAAm= (4.6.2b) : : Ao : 2 , , 2 (4.6.2b) . m =+aa(4.6.2c) KS C IEC 60244 3:2008 8 : : ( 1 ) u = A / Amax= 0 u = 50 % u = 100 % : m = A / Ao= 0 mp= mn= 45 % mp= mn= 90 % : : Ao 1 (Amax) 90 % . 2 4.5.3 2 (full carrier) (DSB emis

14、sion) (A3) : : ( 1 ) u = A / Amax= 0 u = 100 % : m = A / Ao= 0 mp= mn= 50 % : : Ao 1 (Amax) 50 % . 2 4.5.3 3 (full carrier) (SSB emission) (A3H) KS C IEC 60244 3:2008 9 : : u = A / Amax= 0 u = 50 % u = 100 % : : Amax 4.5.3 4 (reduced carrier) (A3A, A3B) : : u = A / Amax= 50 % u = 50 % u = 100 % : : Amax 4.5.3 5 (suppressed carrier) (A3J) 4.6.3 7. 4.7 “ ” , “ ” “ ” . 4.7.1 % , . KS C IEC 60244 3:2008 10 4.7.2 4.2 a) . 4.4.3 a) , , 100

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