TCN 68-206:2001 ppsx

N

thiÕt bÞ ®iÖn tho¹i v« tuyÕn UhF

Yªu cÇu kü thuËt

UHF Radio Telephone

Technical Requirements

68 206 2001

2

Môc lôc

* lêi nãi ®Çu ....................................................................................................... 8

1. Ph¹m vi .................................................................................................... 9

2. Tµi liÖu tham kh¶o ................................................................................... 9

3. §Þnh nghÜa, ch÷ viÕt t¾t vµ ký hiÖu ......................................................... 9

3.1. §Þnh nghÜa ........................................................................................ 9

3.2. Ch÷ viÕt t¾t ..................................................................................... 10

3.3. Ký hiÖu ........................................................................................... 10

4. Yªu cÇu chung ........................................................................................ 10

4.1. CÊu tróc .......................................................................................... 10

4.2. TÇn sè ............................................................................................. 10

4.3. §iÒu khiÓn ...................................................................................... 11

4.4. Thêi gian chuyÓn kªnh .................................................................... 11

4.5. §é an toµn ...................................................................................... 11

4.6. Lo¹i ph¸t x¹ vµ ®Æc tÝnh ®iÒu chÕ .................................................... 11

4.7. ¾c qui ............................................................................................. 11

4.8. Loa vµ micro ................................................................................... 12

4.9. Nh·n................................................................................................ 12

4.10. Tµi liÖu vÒ thiÕt bÞ ......................................................................... 12

5. §iÒu kiÖn ®o kiÓm, nguån vµ nhiÖt ®é m«i tr−êng ............................... 12

5.1. §iÒu kiÖn ®o kiÓm b×nh th−êng vµ tíi h¹n ....................................... 12

5.2. Nguån ®o kiÓm ............................................................................... 12

5.3. §iÒu kiÖn ®o kiÓm b×nh th−êng ....................................................... 12

5.3.1. NhiÖt ®é vµ ®é Èm b×nh th−êng .............................................. 12

5.3.2. §iÖn ¸p ®o kiÓm b×nh th−êng ................................................ 12

5.4. §iÒu kiÖn ®o kiÓm tíi h¹n ............................................................... 12

5.4.1. NhiÖt ®é tíi h¹n ..................................................................... 12

5.4.2. Nguån ®o kiÓm tíi h¹n .......................................................... 13

5.5. Thñ tôc ®o kiÓm ë nhiÖt ®é tíi h¹n .................................................. 13

6. §iÒu kiÖn ®o kiÓm chung ....................................................................... 14

6.1. C¸c kÕt nèi khi ®o kiÓm .................................................................. 14

68 206 200

3

6.2. Bè trÝ tÝn hiÖu ®o kiÓm .................................................................... 14

6.2.1. TÝn hiÖu ®o kiÓm cÊp tíi ®Çu vµo m¸y ph¸t ............................ 14

6.2.2. TÝn hiÖu ®o kiÓm cÊp tíi ®Çu kÕt cuèi anten ........................... 14

6.3. Lµm c©m m¸y thu ............................................................................ 14

6.4. §iÒu chÕ ®o kiÓm b×nh th−êng ........................................................ 14

6.5. Anten gi¶ ........................................................................................ 14

6.6. C¸c kªnh ®o kiÓm ........................................................................... 14

6.7. Sai sè ®o kiÓm vµ gi¶i thÝch kÕt qu¶ ®o kiÓm ................................... 15

6.7.1. Sai sè ®o kiÓm ....................................................................... 15

6.7.2. Gi¶i thÝch kÕt qu¶ ®o kiÓm ..................................................... 15

7. Thö m«i tr−êng....................................................................................... 15

7.1. Thñ tôc ........................................................................................... 15

7.2. KiÓm tra chÊt l−îng ........................................................................ 16

7.3. Thö r¬i ............................................................................................ 16

7.3.1. §Þnh nghÜa ............................................................................ 16

7.3.2. Ph−¬ng ph¸p ®o ..................................................................... 16

7.3.3. Yªu cÇu ................................................................................. 16

7.4. Thö nhiÖt ®é .................................................................................... 17

7.4.1. Tæng qu¸t .............................................................................. 17

7.4.2. Nung nãng kh« ...................................................................... 17

7.4.3. Nung nãng Èm ....................................................................... 17

8. M¸y ph¸t ................................................................................................ 18

8.1. Sai sè tÇn sè .................................................................................... 18

8.2. C«ng suÊt sãng mang ...................................................................... 18

8.3. §é lÖch tÇn sè ................................................................................. 18

8.3.1. §Þnh nghÜa ............................................................................ 18

8.3.2. §é lÖch tÇn cùc ®¹i ................................................................ 19

8.3.3. §é lÖch tÇn sè ë nh÷ng tÇn sè ®iÒu chÕ lín h¬n 3kHz ............ 19

8.4. §Æc tÝnh giíi h¹n cña bé ®iÒu chÕ ................................................... 19

8.5. §é nh¹y cña bé ®iÒu chÕ, gåm c¶ microphone ................................ 20

8.6. §¸p øng ©m tÇn ............................................................................... 20

8.7. MÐo hµi ©m tÇn cña ph¸t x¹ ............................................................ 21

68 206 2001

4

8.8. C«ng suÊt kªnh l©n cËn ................................................................... 22

8.9. D− ®iÒu chÕ cña m¸y ph¸t ............................................................... 22

8.10. §Æc ®iÓm tÇn sè qu¸ ®é cña m¸y ph¸t ........................................... 23

8.11. Ph¸t x¹ t¹p dÉn tíi anten ............................................................... 25

9. M¸y thu .................................................................................................. 26

9.1. C«ng suÊt ra ©m tÇn biÓu kiÕn vµ mÐo hµi ....................................... 26

9.2. §¸p øng tÇn sè ©m tÇn ..................................................................... 27

9.3. §é nh¹y kh¶ dông cùc ®¹i ............................................................... 28

9.4. §é triÖt nhiÔu cïng kªnh.................................................................. 29

9.5. §é chän läc kªnh l©n cËn ................................................................ 30

9.6. TriÖt ®¸p øng t¹p ............................................................................. 30

9.7. §¸p øng xuyªn ®iÒu chÕ .................................................................. 31

9.8. NghÑt .............................................................................................. 32

9.9. Ph¸t x¹ t¹p dÉn tíi anten ................................................................. 32

Phô lôc A (Quy ®Þnh): §o c«ng suÊt kªnh l©n cËn..................................... 34

A.1. Ph−¬ng ph¸p ®o ............................................................................. 34

A.2. ChØ tiªu cña m¸y thu ®o c«ng suÊt .................................................. 34

A.2.1 Bé läc IF ................................................................................ 35

A.2.2. Bé chØ thÞ suy hao.................................................................. 36

A.2.3. Bé chØ thÞ gi¸ trÞ RMS ........................................................... 36

A.2.4. Dao ®éng ký vµ bé khuyÕch ®¹i ............................................ 36

68 206 200

5

contents

* FOREWORD ....................................................................................................... 37

1. Scope ...................................................................................................... 38

2. Normative references ............................................................................. 38

3. Definitions, abbreviations and symbols ................................................ 38

3.1. Definitions .............................................................................. 38

3.2. Abbreviations ..........................................................................38

3.3. Symbols ...................................................................................39

4. General requirements ....................................................................39

4.1. Construction ............................................................................39

4.2. Frequencies .............................................................................39

4.3. Controls ...................................................................................39

4.4. Switching time .........................................................................40

4.5. Safety precautions ....................................................................40

4.6. Class of emission and modulation characteristics ....................40

4.7. Battery .....................................................................................40

4.8. Loudspeaker and microphone ..................................................40

4.9. Labelling .................................................................................40

4.10. Equipment documentation .....................................................41

5. Test conditions, power sources and ambient temperatures .........41

5.1. Normal end extreme test conditions .........................................41

5.2. Test power source ....................................................................41

5.3. Normal test conditions .............................................................41

5.3.1. Normal temperature and humidity ..................................41

5.3.2. Normal test voltage ........................................................41

5.4. Extreme test conditions ............................................................41

5.4.1. Extreme temperatures .....................................................41

5.4.2. Extreme test power supply values ...................................42

5.5. Procedure for tests at extreme temperatures .............................42

6. General conditions of measurement .............................................43

68 206 2001

6

6.1. Test connections ......................................................................43

6.2. Arrangements for test signals ...................................................43

6.2.1. Test signals applied to the transmitter input ....................43

6.2.2. Test signals applied to the antenna terminal ....................43

6.3. Receiver mute or squelch facility .............................................43

6.4. Normal test modulation ...........................................................44

6.5. Artificial antenna .....................................................................44

6.6. Test channels ...........................................................................44

6.7. Measurement uncertainty and interpretation

of the measuring results .................................................................44

6.7.1. Measurement uncertainty ...............................................44

6.7.2.Interpretation of the measurement results ........................44

7. Environmental tests .......................................................................45

7.1. Procedure .................................................................................45

7.2. Performance check ..................................................................45

7.3. Drop test on to a hard surface ..................................................45

7.4. Temperature tests .....................................................................46

7.4.1. General ...........................................................................46

7.4.2. Dry heat ..........................................................................46

7.4.3. Damp heat ......................................................................47

8. Transmitter ....................................................................................47

8.1. Frequency error .......................................................................47

8.2. Carrier power ...........................................................................48

8.3. Frequency deviation .................................................................48

8.3.1. Definition .......................................................................48

8.3.2. Maximum frequency deviation ...................................... 48

8.3.3. Frequency deviation at modulation frequencies

above 3 kHz ....................................................................49

8.4. Limitation characteristics of the modulator .............................49

8.5. Sensitivity of the modulator, including microphone .................50

8.6. Audio frequency response .......................................................50