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NBN EN 50400 : 2007 AMD 1 2012
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BASIC STANDARD TO DEMONSTRATE THE COMPLIANCE OF FIXED EQUIPMENT FOR RADIO TRANSMISSION (110 MHZ - 40 GHZ) INTENDED FOR USE IN WIRELESS TELECOMMUNICATION NETWORKS WITH THE BASIC RESTRICTIONS OR THE REFERENCE LEVELS RELATED TO GENERAL PUBLIC EXPOSURE TO RADIO FREQUENCY ELECTROMAGNETIC FIELDS, WHEN PUT INTO SERVICE
12-01-2013
1 Scope
2 Normative references
3 Physical quantities, units and constants
3.1 Quantities
3.2 Constants
4 Terms and definitions
5 General process
5.1 Alternative routes to determine the total exposure
ratio where the general public has access
5.2 General method
5.2.1 Description of the general method
5.2.2 Comprehensive total exposure ratio assessment
5.3 Pre-analysis method
6 Determination of domains and relevant sources
6.1 Principle of relevance
6.2 Determination of domains
6.2.1 Relevant domain
6.2.2 Scatter domain
6.2.3 Domain of investigation
6.3 Determination of relevant sources
7 Calculation specifications
7.1 General
7.2 Calculation methods
7.2.1 Definition of equivalent free space conditions
7.2.2 Calculation methods in equivalent free space
conditions
7.2.3 Calculation methods when equivalent free space
conditions do not apply
7.3 Summation of exposure ratio estimated using calculation
8 Measurement specifications
8.1 General requirement
8.2 Exposure ratio measurement
8.2.1 Basic requirements
8.2.2 Conditions for the use of broadband measurements
8.2.3 Conditions for the use of frequency selective
measurement
8.3 Summation of exposure ratios estimated using measurement
8.4 Uncertainty
9 TER assessment
10 Exposure assessment report
Annex A (informative) Examples of pre-analysis design guidelines
A.1 Purpose
A.2 Installations designed inclusive of a specified
exposure ratio allowance for other radio sources
A.3 Combined compliance boundaries
A.4 Installation designed so that a minimum build height
is maintained at all distances from the antenna less
than the compliance boundary distance
A.5 Equipment Under Test with less than 10 W average EIRP
Annex B (informative) Simplified procedure to determine scatter
domain and relevant domain boundaries
B.1 Introduction
B.2 Analysis
Annex C (informative) Calculations under non-equivalent free space
conditions
C.1 Introduction
C.2 Determination if an object is a significant reflector
C.3 Determination of power density multiplication
factor in several domains
C.3.1 No line of sight from the radio source to
the point of investigation
C.3.2 Reflecting surface to the side of the direct
path from radio source to point of investigation
C.3.3 Reflecting surface below the direct path from
source to point of investigation
C.3.4 Point of investigation between the radio
source and reflecting surface
C.3.5 Radio source between reflecting surface
and the point of investigation
C.3.6 Power density multiplication factor for use
in summing multiple bands
C.4 Establishing total exposure ratio from a set of
transmissions on different frequencies
Annex D (informative) Selection of points of investigation for
distant radio sources
D.1 Objective
D.2 Principles
D.3 Establish [delta]r with respect to distance to radio source
D.3.1 Consider change of field strength with distance
D.3.2 Consider variation of field strength due to
antenna directivity
D.3.3 Example 1
D.3.4 Example 2
D.4 Selecting points of investigation
Annex E (informative) A-deviations
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