Document 75940027-08 Issue 01

FCC ID: 2AOHPBST50A

RF Exposure Info

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FCCID_4013388

Report On RF Exposure Assessment of the Axnes Aviation AS PNG BST50 Wireless intercom extension for use in demanding high noise environments FCC ID: 2AOHP BST50A Document 75940027 Report 8 Issue 1 April 2018

TÜV SÜD Product Service, Octagon House, Concorde Way, Segensworth North, Fareham, Hampshire, United Kingdom, PO15 5RL Tel: +44 (0) 1489 558100. Website: www.tuv-sud.co.uk REPORT ON RF Exposure Assessment of the Axnes Aviation AS PNG BST50 Wireless intercom extension for use in demanding high noise environments Document 75940027 Report 8 Issue 1 April 2018 PREPARED FOR Axnes Aviation AS Terje Lovasvei 1 Grimstad N-4879 Norway PREPARED BY David Guyett-Smith Chief Safety Engineer - Technical Solutions APPROVED BY Matthew Russell Authorised Signatory DATED 10 April 2018 Document 75940027 Report 8 Issue 1 Page 1 of 12

CONTENTS Section Page No 1 REPORT SUMMARY ................................................................................................................... 3 1.1 Introduction .................................................................................................................................... 4 1.2 Regional Requirements ................................................................................................................. 5 1.3 Product Information ....................................................................................................................... 6 1.3.1 Technical Description .................................................................................................................... 6 1.3.2 Supported Features ....................................................................................................................... 6 1.3.3 Antennas ........................................................................................................................................ 6 2 TEST DETAILS ............................................................................................................................ 8 2.1 Rationale for Assessment of the RF Exposure ............................................................................. 9 2.2 Test Result Details....................................................................................................................... 10 3 DISCLAIMERS AND COPYRIGHT............................................................................................ 11 3.1 Disclaimers and Copyright ........................................................................................................... 12 Document 75940027 Report 8 Issue 1 Page 2 of 12

SECTION 1 REPORT SUMMARY RF Exposure Assessment of the Axnes Aviation AS PNG BST50 Wireless intercom extension for use in demanding high noise environments Document 75940027 Report 8 Issue 1 Page 3 of 12

1.1 INTRODUCTION The information contained in this report is intended to show verification of the RF Exposure Assessment of the Axnes Aviation AS PNG BST50 Wireless intercom extention for use in demanding high noise environments to the requirements of the applied test specifications. Objective To perform RF Exposure Assessment to determine the Equipment Under Test's (EUT’s) compliance of the applied rules. Applicant Axnes Aviation AS Manufacturer Axnes Aviation AS Manufacturing Description Wireless intercom extension for use in demanding high noise environments Model Number(s) PNG BST50 Test Specification/Issue/Date CFR 47 Pt1.1310 (2016) Document 75940027 Report 8 Issue 1 Page 4 of 12

1.2 REGIONAL REQUIREMENTS The table below shows the regional requirements that are referenced in this test report. A full list of the requirements is shown in Annex A. Report Reference Regional Requirement FCC CFR 47 Pt1.1310 (2016) Document 75940027 Report 8 Issue 1 Page 5 of 12

1.3 PRODUCT INFORMATION 1.3.1 Technical Description The Equipment under test was a Axnes Aviation AS PNG BST50 Wireless intercom extension for use in demanding high noise environments. A full technical description can be found in the manufacturer’s documentation. All reported calculations were carried out on the relevant information supplied for the PNG BST50 Wireless intercom extension for use in demanding high noise environments to demonstrate compliance with the applied test specification(s). The sample assessed was found to comply with the requirements of the applied rules. 1.3.2 Supported Features The following radio access technologies and frequency bands are supported by the equipment under test. Radio Access Technology UHF 16QAM Frequency Band (MHz) 405.0125 to 469.9875 1.3.3 Antennas The following antennas are supported by the equipment under test. No. Model Gain(dBi) 1 UHF 5 The wireless device described within this report has been shown to be capable of compliance with the basic restrictions related to human exposure to electromagnetic fields for both General Public and Occupational. The calculations shown in this report were made in accordance with the procedures specified in the applied test specification(s). Required Compliance Boundary (m) Occupational General Population 0.2 0.2 Table 1 – Compliance Boundary Results Document 75940027 Report 8 Issue 1 Page 6 of 12

Calculated RF exposure level at compliance boundary of 0.2 m Regional S Field (W/m2) E Field (V/m) H Field (A/m) Requirement Result Limit Result Limit Result Limit FCC* 0.1258 1.3500 N/A N/A N/A N/A 2 * Requirement and Result in mW/cm Table 2 – Occupational Results The calculations show that the EUT complies with the occupational exposure levels described in CFR 47 Pt1.1310 (2016) at the point of investigation, 0.2 m. Calculated RF exposure level at compliance boundary of 0.2 m Regional S Field (W/m2) E Field (V/m) H Field (A/m) Requirement Result Limit Result Limit Result Limit FCC* 0.1258 0.2700 N/A N/A N/A N/A * Requirement and Result in mW/cm2 Table 3 – General Population Results The calculations show that the EUT complies with the general population exposure levels described in CFR 47 Pt1.1310 (2016) at the point of investigation, 0.2 m. Document 75940027 Report 8 Issue 1 Page 7 of 12

SECTION 2 TEST DETAILS Document 75940027 Report 8 Issue 1 Page 8 of 12

2.1 RATIONALE FOR ASSESSMENT OF THE RF EXPOSURE The aim of the assessment report is to evaluate the compliance boundary for a set of given input power according to the basic restrictions (directly or indirectly via compliance with reference levels) related to human exposure to radio frequency electromagnetic fields. The chosen assessment method to establish the compliance boundary in the far-field region is the reference method as defined in the relevant specifications. The RF exposure assessment is based upon the following criteria: The PNG BST50 Wireless intercom extension for use in demanding high noise environments operates with the following transmitters active on the antenna ports shown in Section 1.3.3. For each transmitter, the Radio Access Technology (RAT), EIRP inclusive of antenna gain and duty cycle, gain of the antenna and lowest frequency of operation are shown as they contribute to the calculation of S Field, E field and H field values according to the following formulas. The power flux (S Field): PG ( ,  ) S 4r 2 The electric field strength (E Field): 30PG ( ,  ) E r The magnetic field strength (H Field): E H   o Where: P = Average Power (W) G = Antenna Gain (dBi) r = Distance (cm) or (m)  o = 377 Document 75940027 Report 8 Issue 1 Page 9 of 12

2.2 TEST RESULT DETAILS The frequencies shown in the tables below have been chosen based on the lowest possible frequency that the EUT can transmit. RF Exposure Level at compliance Duty boundary of 0.2 m Antenna Tx Ant EIRP Gain Frequency RAT Cycle Port No. No. (W) (dBi) (MHz) S Field E Field H Field (%) (W/m2) (V/m) (A/m) 1 1 1 UHF 16QAM 0.632 50 5 405.0125 1.2581 21.7779 0.0578 Table 4 – Occupational Transmitter Summary RF Exposure Level at compliance Duty boundary of 0.2 m Antenna Tx Ant EIRP Gain Frequency RAT Cycle Port No. No. (W) (dBi) (MHz) S Field E Field H Field (%) (W/m2) (V/m) (A/m) 1 1 1 UHF 16QAM 0.632 50 5 405.0125 1.2581 21.7779 0.0578 Table 5 – General Population Transmitter Summary Document 75940027 Report 8 Issue 1 Page 10 of 12

SECTION 3 DISCLAIMERS AND COPYRIGHT Document 75940027 Report 8 Issue 1 Page 11 of 12

3.1 DISCLAIMERS AND COPYRIGHT This report relates only to the actual item/items tested. This report must not be reproduced, except in its entirety, without the written permission of TÜV SÜD Product Service © 2018 TÜV SÜD Product Service Document 75940027 Report 8 Issue 1 Page 12 of 12

ANNEX A REGIONAL REQUIREMENTS Document 75940027 Report 8 Issue 1 Page A.1 of A.2

Electric Field Strength Magnetic Field Strength Frequency Range (MHz) Power Density (mW/cm2) (V/m) (A/m) 0 - 0.3 - - - 0.3 - 3 100 614 1.63 3 - 30 900/f^2 1842/f 4.89/f 30 - 300 1 61.4 0.163 300 - 1500 f/300 - - 1500 - 100000 5 - - Table A.1 – CFR 47 Pt1.1310 (2016) Occupational Limits Electric Field Strength Magnetic Field Strength Frequency Range (MHz) Power Density (mW/cm2) (V/m) (A/m) 0 - 0.3 - - - 0.3 - 3 100 614 1.63 3 - 30 180/f^2 824/f 2.19/f 30 - 300 0.2 27.5 0.073 300 - 1500 f/1500 - - 1500 - 100000 1 - - Table A.2 – CFR 47 Pt1.1310 (2016) General Population Limits Document 75940027 Report 8 Issue 1 Page A.2 of A.2


Document Created: 2018-04-10 11:28:45
Document Modified: 2018-04-10 11:28:45
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