IEEE DRAFT C63.19 : 2005

1 OVERVIEW
   1.1 Scope
   1.2 Purpose
   1.3 Organization and Use of the Document
2 REFERENCES
3 DEFINITIONS, ACRONYMS AND ABBREVIATIONS
   3.1 Definitions
   3.2 Acronyms and Abbreviations
4 WIRELESS DEVICE, RF EMISSIONS TEST
   4.1 Measured RF interference level
   4.2 Test Equipment and Facilities
   4.3 Test Setup and Validation
   4.4 Near-Field Test Procedure
5 HEARING AID RF NEAR-FIELD IMMUNITY TEST
   5.1 Test Facilities and Equipment
   5.2 Test Setup and Validation
   5.3 RF Immunity Test Procedure - Primary
   5.4 RF Immunity Test Procedure - Alternate
6 WIRELESS DEVICE T-COIL SIGNAL TEST
   6.1 Test Facilities and Equipment
   6.2 Test Configurations and Setup
   6.3 Test Procedure for T-Coil Signal
   6.4 Broadband Test Procedure - Alternate
7 PERFORMANCE
   7.1 Articulation weighting factor (AWF)
   7.2 Audio Coupling Mode
   7.3 T-Coil Coupling Mode
   7.4 Accessories and Options
   7.5 Product Line Compliance
8 CALIBRATION AND MEASUREMENT UNCERTAINTY
   8.1 General
   8.2 Ambient Conditions
   8.3 Specific Calibration Requirements
   8.4 Measurement Uncertainty
9 TEST REPORT
   9.1 Test Plan
   9.2 Applicable Standards
   9.3 Equipment Unit Tested
   9.4 Test Configuration
   9.5 List of Test Equipment
   9.6 Units of Measurement
   9.7 Location of Test Site
   9.8 Measurement Procedures
   9.9 Reporting Measurement Data
   9.10 General and Special Conditions
   9.11 Summary of Results
   9.12 Required Signatures
   9.13 Test Report Annexes
   9.14 Test Report Disposition
10 BIBLIOGRAPHY
ANNEX A. DEFINITION OF REFERENCE AXES - (NORMATIVE)
      A.1 Axes definition for hearing aid RF immunity tests
      A.2 WD RF emission measurements reference and plane
      A.3 T-Coil measurement points and reference plane
ANNEX B. TEST FREQUENCIES - (NORMATIVE)
      B.1 Acoustic test frequencies
      B.2 Test channels and frequencies
ANNEX C. EQUIPMENT AND SETUP CALIBRATION - (NORMATIVE)
      C.1 Test enclosures
      C.2 Audio input source
      C.3 Calibration of RF electric and magnetic field probes
      C.4 Calibration of dipoles
      C.5 Calibration of hearing aid probe coil
      C.6 Selection and calibration of acoustic transmission
          line (Informative)
      C.7 Microphone subsystem requirements
ANNEX D. TEST EQUIPMENT SPECIFICATIONS - (NORMATIVE)
      D.1 Acoustic damper
      D.2 Audio frequency analyzer or wave analyzer
      D.3 Audio signal generator
      D.4 Bandpass filter
      D.5 Dipole, resonant
      D.6 Directional coupler
      D.7 Frequency generator
      D.8 Hearing aid probe coil
      D.9 Helmholtz calibration coils
      D.10 Probe, near-field, E-field
      D.11 Probe, near-field, H-field
      D.12 RF cables
      D.13 RF Communications test set
      D.14 RF power amplifier
      D.15 RF Signal generator
      D.16 RF wattmeter
      D.17 T-Coil integrator
      D.18 TEM cell
      D.19 Telephone Magnetic Field Simulator (TMFS)
      D.20 True RMS voltmeter
ANNEX E. SAMPLE MEASUREMENT UNCERTAINTY ESTIMATES - (INFORMATIVE)
      E.1 WD near-field emissions measurement uncertainty
      E.2 Hearing aid near-field immunity measurement uncertainty
      E.3 WD audio band measurement uncertainty
      E.4 Sample estimation
ANNEX F. USE OF HELMHOLTZ COILS FOR CALIBRATION - (INFORMATIVE)
      F.1 Introduction
      F.2 Axial field-strength accuracy
      F.3 Radial field-strength
      F.4 Summary
      F.5 References
ANNEX G. RF ENVELOPE COMPARISON FOR US WD SYSTEMS - (INFORMATIVE)
      G.1 Introduction
      G.2 AMPS
      G.3 NADC
      G.4 GSM and PCS
      G.5 CDMA
      G.6 IDEN[TM]
ANNEX H. EXPLANATION OF RATIONALE USED IN THIS STANDARD -
         (INFORMATIVE)
ANNEX I. MEASUREMENT OF PEAK POWER ACROSS MULTIPLE AIRLINK
         TECHNOLOGIES (INFORMATIVE)
      I.1 Introduction
      I.2 RF power measurement terminology
      I.3 Statistical RF power measurement
      I.4 Peak envelope power vs. airlink technology
      I.5 Conclusion
ANNEX J. SAMPLE HAC APPLICATION FORMS (INFORMATIVE)
      J.1 E-Field technical report
      J.2 H-Field technical report
REVISION HISTORY

Pertains to both wireless communications devices (WDs) and hearing aids. It sets forth uniform methods of measurement and parametric requirements for the electromagnetic and operational compatibility and accessibility of hearing aids used with wireless communications devices, including cordless, cellular, Personal Communications Service (PCS) phones and Voice over Internet Protocol (VoIP) devices, operating in the range of 800 MHz to 3 GHz.