(FM)

ITU-R SM.1268-3(2014/08)

SM

iiITU-R SM.1268-3

(IPR)

(ITU-T/ITU-R/ISO/IEC)1

1 R-ITU

R/go/patents/en-http://www.itu.int/ITU

en/REC-R/publ/int.itu.www://http

BO

BR

BS

BT

F

M

P

RA

RS

S

SA

SF

SM

SNG

TF

V

ITU-R 1

2015

ITU 2015

(ITU)

ITU-R SM.1268-31

ITU-R SM.1268-3

(FM)

(2014-2011-1999-1997)

(FM)

(FM)

ITU-R BS.412

(FM)ITU-R BS.412

kHz 75kHz 50±

kHz 19

(RDS)

MHz 108

(RDS)

2ITU-R SM.1268-3

1

150kHz

250kHz

1 1

(FM)

2 2

1

1

2

3

– 5

–

– 50dB

4

– )CF(0f

– (RBW)10kHz(IF)

– (VBW)kHz 10

ITU-R SM.1268-33

– 340kHz

– 340ms(ms/kHz 1)

–

–

(DSP)

5

5

7

x)0f(

0dB

6

7

x)0f(

ydB 0

x (kHz)

y (dB)

x (kHz)

y (dB)

74 – 0f 0 74 0f 0

7,510 – 0f 15– 7,510 0f 15–

124 – 0f 30– 124 0f 30–

2,515 – 0f 40– 2,515 0f 40–

1

4ITU-R SM.1268-3

1

SM.1268-01

– 152.5

– 124

– 107.5

– 74 74

107.5

124

152.5

0

– 5

– 10

– 15

– 20

– 25

– 30

– 35

– 40

– 45

– 50– 170 – 136 – 102 – 68 – 34 0 34 68 102 136 170

f0

2

(FM)

1

1.1

0f

)t(f)t(

)0f(

)t(f 0f )t(f

f)0f()t(f

(kHz)

dB

ITU-R SM.1268-35

(RDS)

60

dBr }td 2)/19 kHz)t(f(10 log {(2/60 s)

0 dBr

19kHz

2.1

3

3.1

ITU R BS.412(FM)

75kHz60

19kHz

4.1

15

2

1.2 )sE/nE(

1.32.3

12

6ITU-R SM.1268-3

1

±f (kHz)

(dB)

0 40

X

2)

2(*2ln

log*2040 B

X

e

B13dBkHz

2

SM.1268-02

–500 –400 –300 –200 –100 100 200 300 400 5000–10

0

10

30

40

20

IF-BW = 150 kHz

IF-BW = 200 kHz

IF-BW = 250 kHz

(kHz)

(dB

)

ITU-R SM.1268-37

2

±f (kHz)

(dB)

0 40

B/2 35

X (for X > B/2) 35 – 0,2*(X – B/2)

B23dBkHz

3

SM.1268-03

–500 –400 –300 –200 –100 100 200 300 400 5000–20

0

30

40

20

IF-BW = 200 kHz

IF-BW = 250 kHz

IF-BW = 300 kHz

10

–10

22

s %< 64 ) dU/rU( )1(

(kHz)

(dB

)

8ITU-R SM.1268-3

rU

dU

τ (µs)

z4%/kH,)/df < 0dU/Ud( )2(

U

3.2

47 dBm1

3

200kHz

1.3

(1)

(2)

____________________ 168dB(µV/m)BS.599 R-ITU1

12dB

ITU-R SM.1268-39

150kHz

0,4%kHz

2.24

2.3

100kHz

3

4

SM.1268-04

0 20 40 60 100 120 140800

0.20

0.10

0.5

0.15

0.25

0.30

0.40

0.35

0.45

3

kHz 80 ≥ kHz 2±

kHz 80 %5`±

3.3

(dBr)dBr1.1

6dBr6dBr4

(kHz)

(kH

z/%

)

10ITU-R SM.1268-3

4

(dBr)

(dB)

2– < 0,4 ±

2–2+ 0,2 ±

2 0,4 ±

4

75kHz

(FM)

2

%95

(FM)75kHz

%10–477kHz

60

(FM)

0,2dBr

5

1.5

2.5

77kHz4

150kHz1kHz

150

5

ITU-R SM.1268-311

x0xN

6

50ms50ms

20Hz

N

7

5

SM.1268-05

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150

500

400

300

200

100

0

6

SM.1268-06

0 25 50 75 120

110

177 kHz

–1

110–2

110

–3

110

–4

110

–5

110–6

kHz 150 - 0150

(kHz)

12ITU-R SM.1268-3

7

SM.1268-07

25

00

50

100

75

125

09:16 09:21 09:26 09:31 09:36 09:41 09:46 09:51 09:56 10:01 10:06 10:11

Peak-hold = 10 s

(kH

z)