1、 TIA STANDARD Project 25 Land Mobile Radio Transceiver Recommendations, Project 25 - Digital Radio Technology, C4FM/CQPSK Modulation TIA-102.CAAB-B (Revision of TIA/EIA-102.CAAB-A) JULY 2004 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the
2、Electronic Industries Alliance ANSI/TIA-102.CAAB-B-2004 Approved: July 8, 2004 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association
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8、ance of the TIA TR-8.6 Subcommittee on Transceiver Performance Recommendations.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2004 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY AS
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22、eproduction or networking permitted without license from IHS-,-,-TIA-102.CAAB-B i Table of Contents 1 Introduction1 1.1 Scope .1 1.2 Object.1 1.3 Standard Definitions .1 1.4 Standard Test Conditions .1 1.5 Characteristics of Test Equipment1 1.6 Reference Documents (Normative) 2 1.7 Revision History2
23、 2 Methods of Measurements2 3 Standards for all equipment .2 3.1 Receiver Section.3 3.1.1 Radiated Spurious Field Strength 3 3.1.2 Conducted Spurious Output Power4 3.1.3 Power Line Conducted Spurious Output Voltage.4 3.1.4 Reference Sensitivity.4 3.1.5 Faded Reference Sensitivity5 3.1.6 Signal Delay
24、 Spread Capability5 3.1.7 Adjacent Channel Rejection.5 3.1.8 Co-Channel Rejection6 3.1.9 Spurious Response Rejection6 3.1.10 Intermodulation Rejection6 3.1.11 Signal Displacement Bandwidth.6 3.1.12 Audio Output Distortion6 3.1.13 Residual Audio Noise Ratio .7 3.1.14 Average Radiation Sensitivity 7 3
25、.1.15 Acoustic Audio Output .7 3.1.16 Bit Error Rate Floor8 3.1.17 Late Entry Unsquelch Delay 8 3.1.18 Receiver Throughput Delay .8 3.2 Transmitter Section 8 3.2.1 RF Output Power.8 3.2.2 Operating Frequency Accuracy .9 3.2.3 Electrical Audio Performance.9 3.2.4 Acoustic Audio Performance .10 3.2.5
26、Modulation Emission Spectrum .10 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.CAAB-B ii3.2.6 Unwanted Emissions: Radiated Spurious 11 3.2.7 Unwanted Emissions: Conduc
27、ted Spurious .11 3.2.8 Unwanted Emissions: Non-Spurious Adjacent Channel Power Ratio.12 3.2.9 Intermodulation Attenuation.14 3.2.10 Radiated Power Output .14 3.2.11 Conducted Spurious Emissions into VSWR.14 3.2.12 Transmitter Power and Encoder Attack Time 15 3.2.13 Transmitter Power and Encoder Atta
28、ck Time with Busy/Idle Operation .15 3.2.14 Transmitter Throughput Delay.15 3.2.15 Frequency Deviation for C4FM15 3.2.16 Modulation Fidelity.16 3.2.17 Symbol Rate Accuracy 16 3.2.18 Transient Frequency Behavior.17 3.2.19 RFSS Throughput Delay19 3.2.20 RFSS Idle to Busy Transition Time19 3.3 Trunked
29、System Timing Characteristics .19 3.3.1 Trunking Control Channel Slot Times 19 3.3.2 Trunking Request Time .19 3.3.3 Trunking Voice Channel Access Time .20 3.3.4 Time to Grant 20 3.3.5 Transmitter Time to Key on a Traffic Channel .20 3.4 Unit Characteristics.21 3.4.1 Power Supply Voltage Range21 3.4
30、.2 Temperature Range 23 3.4.3 High Humidity 24 3.4.4 Vibration Stability.25 3.4.5 Shock Stability.25 3.4.6 DC Supply Noise Susceptibility26 3.4.7 Battery Life 26 3.4.8 Dimensions27 3.4.9 Weight.27 3.4.10 Other Environmental27 ANNEX A Measurement Uncertainty (Informative) 31 A.1 Introduction.31 A.2 D
31、efinitions.31 A.2.1 Accuracy31 A.2.2 Measurand.31 A.2.3 Error 31 A.2.4 Bias and Systematic Error .31 A.2.5 Random Error32 A.2.6 RSS Errors 32 A.2.7 Precision32 A.2.8 Uncertainty 32 A.2.9 Confidence Limits 32 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot
32、for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-102.CAAB-B iii A.3 Principles for Calculating Measurement Uncertainties 32 A.3.1 General32 A.3.2 Types of Errors32 A.3.3 Propagation of Errors 35 A.3.4 Converting Power Errors Expressed in dB to Percentage36 A.3.5 Mis
33、match Uncertainty and Mismatch Loss.36 A.3.6 Sensitivity of Transmitter Output to Load.37 A.3.7 Correcting rms Measurements for the Effects of rms Residuals 38 A.3.8 Correcting Peak Measurements for the Effects of Residuals.39 ANNEX B Example Calculations (Informative) .40 B.1 Example Calculations f
34、or Receiver Measurements.40 B.1.1 Radiated Spurious Emission40 B.1.2 Conducted Spurious Emission.40 B.1.3 Power Line Conducted Spurious Emission 40 B.1.4 Reference Sensitivity.41 B.1.5 Faded Reference Sensitivity41 B.1.6 Signal Delay Spread Capability41 B.1.7 Adjacent Channel Rejection.42 B.1.8 Co-c
35、hannel Rejection 42 B.1.9 Spurious Response Rejection42 B.1.10 Intermodulation Rejection43 B.1.11 Signal Displacement Bandwidth.43 B.1.12 Audio Output Distortion43 B.1.13 Residual Audio Noise Ratio .43 B.1.14 Average Radiation Sensitivity 44 B.1.15 Acoustic Audio Output .44 B.1.16 Bit Error Rate Flo
36、or44 B.1.17 Late Entry Unsquelch Delay 44 B.1.18 Receiver Throughput Delay .44 B.2 Example Calculations for Transmitter Measurements.46 B.2.1 RF Output Power.46 B.2.2 Operating Frequency Accuracy .46 B.2.3 Electrical Audio Performance.47 B.2.4 Acoustic Audio Performance .47 B.2.5 Modulation Emission
37、 Spectrum .47 B.2.6 Radiated Spurious Emissions47 B.2.7 Conducted Spurious Emissions .48 B.2.8 Adjacent Channel Power Ratio 48 B.2.9 Intermodulation Attenuation.49 B.2.10 Average Radiated Power Output .50 B.2.11 Conducted Spurious Emissions into VSWR.50 B.2.12 Transmitter Power and Encoder Attack Ti
38、me 50 B.2.13 Transmitter Power and Encoder Attack Time with Busy/Idle Operation .50 B.2.14 Transmitter Throughput Delay.51 B.2.15 Frequency Deviation for C4FM51 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitt
39、ed without license from IHS-,-,-TIA-102.CAAB-B ivB.2.16 Modulation Fidelity.51 B.2.17 Symbol Rate Accuracy 52 B.2.18 Transient Frequency Behavior.52 B.2.19 RFSS Throughput Delay52 B.2.20 RFSS Idle to Busy Transition Time52 B.3 Trunking System Measurements 53 B.3.1 Trunking Control Channel Slot Times
40、 53 B.3.2 Trunking Request Time .53 B.3.3 Trunking Voice Access Time .53 B.3.4 Time to Grant 53 B.3.5 Transmitter Time to Key on a Traffic Channel .53 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without
41、 license from IHS-,-,-TIA-102.CAAB-B vFOREWORD (This foreword is not part of this Standard) This Standard was developed and will be maintained by the TR-8.6 Equipment Performance Recommendations Subcommittee of the TR-8 Land Mobile Services Committee. Participating in its development were radio equi
42、pment and measuring instrument manufacturers as well as representatives of public safety user groups from the Association of Public Safety Communications Officials, International (APCO), the National Association of State Telecommunications Directors (NASTD), and numerous federal government agencies.
43、 These user groups and agencies worked together under APCO Project 25, and several subcommittees and working groups at the Telecommunications Industry Association (TIA) worked together with them to formulate a family of Standards and Bulletins. This Standard was approved for balloting during the Jan
44、uary 2004 meeting of Subcommittee TR 8.6. When published it cancels and replaces predecessor document ANSI/TIA102.CAAB-A (2002). Telecommunications Systems Bulletin TIA TSB-102-A, Project 25 System and Standards Definition, provides an overview of Project 25, outlines the user group requirements, an
45、d lists the family of more than 30 TIA documents developed under Project 25 which was intended to provide interoperable digitally modulated radio equipment for public safety users. As part of Project 25 the National Telecommunications and Information Agency (NTIA) was seeking to improve spectrum eff
46、iciency for federal government radio users by changing to 12.5 kHz channel spacing from 25 kHz channel spacing for new systems installations commencing the beginning of the year 1995, and migrating to 6.25 kHz channel spacing commencing no later than the year 2004. Concurrently, the Federal Communic
47、ations Commission (FCC) was endeavoring to implement increased spectrum efficiency for all non-federal government users through narrowband channelization under docket FCC 92-235. TIA responded on May 28, 1993 to the FCCs notice of proposed rule-making during the comments period, and on June 23rd 199
48、5 the FCC issued FCC 95-255, its Report and Order on the subject docket. In subsequent Orders (FCC 98-191, 00-204, 00-348 and 01-10) assigned TV frequencies were re-assigned and rules established for exclusive use of a paired 700 MHz band by public safety users. These rules mandated narrowband digit
49、al technologies for voice communications, and the Project 25 digital technology was mandated for use on the designated public safety 700MHz band nationwide interoperability channels. This Standard reflects these FCC rules as well as those contained in FCC 96-492, the Erratum to FCC 95-255. There are two annexes in this Standard, The annexes, A and B, are informative and are no
