MPE

FCC ID: I88MAX200M1

RF Exposure Info

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FCCID_903008

                                                                 FCC ID. : I88MAX200M1
                                                                  Report No.: EME-071149
                                                                          Page 1 of 9




Maximum Permissible Exposure (MPE)
        Evaluation Report

                     Report No.       : EME-071149
                     Model No.        : MAX-200M1
                     Issued Date      : Nov. 06, 2007




Applicant     : ZyXEL Communications Corporation
               6, Innovation Rd II, Science-Based Industrial Park,
               Hsin-Chu, Taiwan

Test By       : Intertek Testing Services Taiwan Ltd.
                No. 11, Lane 275, Ko-Nan 1 Street, Chia-Tung Li,
                Shiang-Shan District, Hsinchu City, Taiwan



This test report consists of 9 pages in total. It may be duplicated completely
for legal use with the allowance of the applicant. It shall not be reproduced
except in full, without the written approval of Intertek Laboratory. The test
result(s) in this report only applies to the tested sample(s).




  Project Engineer                                 Reviewed By




    Jimmie Liu                                       Kevin Chen


                                                                                                    FCC ID. : I88MAX200M1
                                                                                                     Report No.: EME-071149
                                                                                                             Page 2 of 9




                                                  Table of Contents

Summary of Tests ............................................................................................................. 3

1. Introduction .................................................................................................................. 4

2. RF Exposure Limit ....................................................................................................... 4

3. RF Exposure calculations ............................................................................................. 5

4. Test results .................................................................................................................... 5


                                                          FCC ID. : I88MAX200M1
                                                           Report No.: EME-071149
                                                                   Page 3 of 9



Summary of Tests

MPE Evaluation meet FCC OET No. 65: 1997/ IEEE C95.1-1999

     WiMAX IEEE802.16e Indoor Basic CPE-2.5GHz -Model: MAX-200M1
                       FCC ID: I88MAX200M1


      Test                          Reference                        Results
 MPE Evaluation    FCC Guidelines for Human Exposure IEEE C95.1       Pass


                                                                    FCC ID. : I88MAX200M1
                                                                     Report No.: EME-071149
                                                                             Page 4 of 9



1. Introduction

The EUT operates in the 2.5GHz band about WiMAX IEEE 802.16e. Due to the EUT
(include antenna) at its normal operation distance is at least 20 cm from the human body,
the EUT was defined as a Mobile Device.


The reason to do the MPE Evaluation is to avoid the RF hazard to human body. The
maximum output power and gain of the antenna were used to calculate the limited
Power density (S) at 20cm distance away from the product. The limit for Maximum
Permissible Exposure (MPE) specified in FCC 1.1310 is followed.


According to 1.1307 (b)(1), systems operating under the provisions of this section shall
be operated in a manner that ensure that the public is not exposed to radio frequency
energy level in excess of the Commission’s guideline.



2. RF Exposure Limit

According to FCC 1.1310: The criteria listed in the following table shall be used to
evaluate the environmental impact of human exposure to radio-frequency (RF) radiation
as specified in 1.1307(b).

                   Limits for Maximum Permissible Exposure (MPE)

   Frequency       Electric Field Magnetic Field
                                                     Power Density        Average Time
     Range           Strength         Strength
                                                       (mW/cm2)            (minutes)
     (MHz)            (V/m)            (A/m)
                   (A) Limits for Occupational / Control Exposures
     30-300             61.4             0.163               1.0                 6
   300-1500               -                 -              F/300                 6
 1500-100,000             -                 -                5                   6
               (B) Limits for General Population / Uncontrolled Exposure
     30-300             27.5             0.073               0.2                30
   300-1500               -                 -              F/1500               30
 1500-100,000             -                 -                1.0                30

F= Frequency in MHz


                                                                FCC ID. : I88MAX200M1
                                                                 Report No.: EME-071149
                                                                         Page 5 of 9


3. RF Exposure calculations

From §FCC 1.1310 table 1, the maximum permissible RF exposure for an
uncontrolled environment is 1mW/(cm2)
Power density (S) is calculated by the following formula:

S = (P * G)/4πR2

where, S = Power density (mW/cm2)
       P = Output power to antenna (mW)
       R = Distance between radiating structure and observation point (cm)
       G = Gain of antenna in numeric
       π = 3.1416

Example:
         Assume a mobile device operates at 2412MHz and its maximum output power
is 50mW, and the maximum gain of antenna is 1 (numeric) /0dBi.

then the power density (S) = (50 * 1)/4*π*202 = 0.00995 (mW/cm2)

4. Test results

                    Environmental
  Input Power                       Antenna Type       Modulation      Coding Rate
                     Conditions
120Vac, 60Hz         26℃, 65%       Dipole antenna       QPSK                1/2


                  Maximum       Output       Power         Limit of
  Frequency        antenna      power        density        power       Band Width
    (MHz)           gain      to antenna                   density        (MHz)
                  (numeric      (mW)        (mW/cm2)      (mW/cm2)
    2500            1.41      116.1449       0.03264          1.0             5
    2590            1.41      119.6741       0.03363          1.0             5
    2685            1.41      77.2681        0.02171          1.0             5
    2500            1.41      115.6112       0.03249          1.0            10
    2590            1.41      113.2400       0.03182          1.0            10
    2685            1.41      74.1310        0.02083          1.0            10

The Notice in Installation Manual has been stated as below:
While installing and operating this transmitter, the radio frequency exposure limit of
1mW/(cm*cm) may be exceeded at distances close to the transmitter. therefore, the user
must maintain a minimum distance of 20 cm from the device at all time.


                                                                FCC ID. : I88MAX200M1
                                                                 Report No.: EME-071149
                                                                         Page 6 of 9




                  Environmental
  Input Power                       Antenna Type       Modulation      Coding Rate
                   Conditions
120Vac, 60Hz       26℃, 65%        Dipole antenna        QPSK               3/4


                Maximum         Output       Power         Limit of
 Frequency       antenna        power        density        power       Band Width
   (MHz)          gain        to antenna                   density        (MHz)
                (numeric        (mW)        (mW/cm2)      (mW/cm2)
    2500           1.41       111.6863       0.03139          1.0             5
    2590           1.41       116.1449       0.03264          1.0             5
    2685           1.41        75.3356       0.02117          1.0             5
    2500           1.41       112.4605       0.03160          1.0            10
    2590           1.41       109.9006       0.03088          1.0            10
    2685           1.41        72.7780       0.02045          1.0            10


                  Environmental
  Input Power                       Antenna Type       Modulation      Coding Rate
                   Conditions
 120Vac, 60Hz      26℃, 65%        Dipole antenna       16QAM               1/2


                Maximum         Output       Power         Limit of
 Frequency       antenna        power        density        power       Band Width
   (MHz)          gain        to antenna                   density        (MHz)
                (numeric        (mW)        (mW/cm2)      (mW/cm2)
    2500           1.41       109.3956       0.03074          1.0             5
    2590           1.41       112.4605       0.03160          1.0             5
    2685           1.41        73.6207       0.02069          1.0             5
    2500           1.41       110.6624       0.03110          1.0            10
    2590           1.41       107.8947       0.03032          1.0            10
    2685           1.41        71.2853       0.02003          1.0            10

The Notice in Installation Manual has been stated as below:
While installing and operating this transmitter, the radio frequency exposure limit of
1mW/(cm*cm) may be exceeded at distances close to the transmitter. therefore, the user
must maintain a minimum distance of 20 cm from the device at all time.


                                                                FCC ID. : I88MAX200M1
                                                                 Report No.: EME-071149
                                                                         Page 7 of 9




                  Environmental
  Input Power                       Antenna Type       Modulation      Coding Rate
                   Conditions
120Vac, 60Hz       26℃, 65%        Dipole antenna       16QAM               3/4


                Maximum         Output       Power         Limit of
 Frequency       antenna        power        density        power       Band Width
   (MHz)          gain        to antenna                   density        (MHz)
                (numeric        (mW)        (mW/cm2)      (mW/cm2)
    2500           1.41       107.8947       0.03032          1.0             5
    2590           1.41       111.6863       0.03139          1.0             5
    2685           1.41        72.2770       0.02031          1.0             5
    2500           1.41       108.1434       0.03039          1.0            10
    2590           1.41       105.9254       0.02977          1.0            10
    2685           1.41        69.3426       0.01947          1.0            10


                  Environmental
  Input Power                       Antenna Type       Modulation      Coding Rate
                   Conditions
 120Vac, 60Hz      26℃, 65%         Patch antenna        QPSK               1/2


                Maximum         Output       Power         Limit of
 Frequency       antenna        power        density        power       Band Width
   (MHz)          gain        to antenna                   density        (MHz)
                (numeric        (mW)        (mW/cm2)      (mW/cm2)
    2500           1.41       116.1449       0.03264          1.0             5
    2590           1.41       119.6741       0.03363          1.0             5
    2685           1.41       77.2681        0.02171          1.0             5
    2500           1.41       115.6112       0.03249          1.0            10
    2590           1.41       113.2400       0.03182          1.0            10
    2685           1.41       74.1310        0.02083          1.0            10

The Notice in Installation Manual has been stated as below:
While installing and operating this transmitter, the radio frequency exposure limit of
1mW/(cm*cm) may be exceeded at distances close to the transmitter. therefore, the user
must maintain a minimum distance of 20 cm from the device at all time.


                                                                FCC ID. : I88MAX200M1
                                                                 Report No.: EME-071149
                                                                         Page 8 of 9




                  Environmental
  Input Power                       Antenna Type       Modulation      Coding Rate
                   Conditions
 120Vac, 60Hz      26℃, 65%         Patch antenna        QPSK               3/4


                Maximum         Output       Power         Limit of
 Frequency       antenna        power        density        power       Band Width
   (MHz)          gain        to antenna                   density        (MHz)
                (numeric        (mW)        (mW/cm2)      (mW/cm2)
    2500           1.41       111.6863       0.03139          1.0             5
    2590           1.41       116.1449       0.03264          1.0             5
    2685           1.41        75.3356       0.02117          1.0             5
    2500           1.41       112.4605       0.03160          1.0            10
    2590           1.41       109.9006       0.03088          1.0            10
    2685           1.41        72.7780       0.02045          1.0            10


                  Environmental
  Input Power                       Antenna Type       Modulation      Coding Rate
                   Conditions
120Vac, 60Hz       26℃, 65%         Patch antenna       16QAM               1/2


                Maximum         Output       Power         Limit of
 Frequency       antenna        power        density        power       Band Width
   (MHz)          gain        to antenna                   density        (MHz)
                (numeric        (mW)        (mW/cm2)      (mW/cm2)
    2500           1.41       109.3956       0.03074          1.0             5
    2590           1.41       112.4605       0.03160          1.0             5
    2685           1.41        73.6207       0.02069          1.0             5
    2500           1.41       110.6624       0.03110          1.0            10
    2590           1.41       107.8947       0.03032          1.0            10
    2685           1.41        71.2853       0.02003          1.0            10


The Notice in Installation Manual has been stated as below:
While installing and operating this transmitter, the radio frequency exposure limit of
1mW/(cm*cm) may be exceeded at distances close to the transmitter. therefore, the user
must maintain a minimum distance of 20 cm from the device at all time.


                                                                FCC ID. : I88MAX200M1
                                                                 Report No.: EME-071149
                                                                         Page 9 of 9




                  Environmental
  Input Power                       Antenna Type       Modulation      Coding Rate
                   Conditions
120Vac, 60Hz       26℃, 65%         Patch antenna       16QAM               3/4


                Maximum         Output       Power         Limit of
 Frequency       antenna        power        density        power       Band Width
   (MHz)          gain        to antenna                   density        (MHz)
                (numeric        (mW)        (mW/cm2)      (mW/cm2)
    2500           1.41       107.8947       0.03032          1.0             5
    2590           1.41       111.6863       0.03139          1.0             5
    2685           1.41        72.2770       0.02031          1.0             5
    2500           1.41       108.1434       0.03039          1.0            10
    2590           1.41       105.9254       0.02977          1.0            10
    2685           1.41        69.3426       0.01949          1.0            10


The Notice in Installation Manual has been stated as below:
While installing and operating this transmitter, the radio frequency exposure limit of
1mW/(cm*cm) may be exceeded at distances close to the transmitter. therefore, the user
must maintain a minimum distance of 20 cm from the device at all time.



Document Created: 2007-11-28 16:57:33
Document Modified: 2007-11-28 16:57:33

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