EV9WNIP2458Rwavenet ip remote

October 27, 1998 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Maximum Permissible Exposure calculations for FCC ID: EV9WNIP2458R To whom it may concern, Wireless is submitting a low power transmitter for the WaveNet IP System. The unit has a low power frequency hopping spread spectrum radio operating in the 5725 - 5850 MHz range with a radiated output power of 205 W. Assuming a worst case of no duty cycle. For an Isotropic radiator the surface area of a sphere can be used to determine the area over which the transmitter energy is radiated. Surface area of a sphere = 4*Π*radius 2 In the case where there is antenna gain, the worst case energy density is increased by the antenna gain. The exposure level can be calculated as follows for the antenna gain: MPE distance = (output power *duty cycle*10(antenna gain/10)/(4*Π*Exposure Limit (mW/cm 2 ) 1/2 EV9WNIP2458R MPE distance SP1-2/5 Dual Band Antenna = (304 mW*1*213/4*3.14*1) 1/2 = 71.8 cm = 28.3 in SP2I-2/5 Dual Band Antenna= (304 mW*1*676/4*3.14*1) 1/2 = 127 cm = 50.3 in If you have any questions please do not hesitate to call me. Sincerely, Chris Byleckie Technical Director Electronic Compliance Laboratories

A810007.DOC 15.247 Certification15.247 Certification FCC ID: EV9WNIP2458RFCC ID: EV9WNIP2458R EMI TEST REPORTEMI TEST REPORT OnOn WAVENET IP 2458 REMOTEWAVENET IP 2458 REMOTE Prepared forPrepared for Wireless Inc.Wireless Inc. 19 Davis Drive19 Davis Drive Belmont CA 94002Belmont CA 94002 Tel: (650) 595-3300Tel: (650) 595-3300 Fax: (650) 595-4907Fax: (650) 595-4907 Prepared byPrepared by Electronic Compliance Laboratories Inc.Electronic Compliance Laboratories Inc. 1249 Birchwood Dr.1249 Birchwood Dr. Sunnyvale, CA 94089Sunnyvale, CA 94089 Tel: (408) 747-1490Tel: (408) 747-1490 Fax: (408) 747-1495Fax: (408) 747-1495 Test Report Number: A810007Test Report Number: A810007 Date of Test: September 21 and 22, 1998Date of Test: September 21 and 22, 1998 If this document is reproduced, it must be reproducedIf this document is reproduced, it must be reproduced in its entirety.in its entirety. A810007.DOC 2 Table of Contents 1.0 Test Facility.............................................................................................................3 2.0 Test Equipment.......................................................................................................3 3.0 EUT..........................................................................................................................4 4.0 Support Equipment.................................................................................................4 5.0 Equipment Configuration.......................................................................................6 6.0 Summary Of Tests..................................................................................................6 6.1 15.247 (a)(1) Frequency Hopping Systems...........................................................7 6.1.1 15.247 (a)(1)(ii) Channel Utilization.................................................................7 6.1.2 15.247(b) Maximum Peak Output Power.........................................................7 6.1.3 15.247 (c) Out Of Band Emissions..................................................................9 6.1.4 15.203 Antenna Requirement.........................................................................9 6.1.5 15.205 Restricted Band Radiation Limits........................................................9 6.1.6 15.207 AC Line Conducted Emissions............................................................7 6.1.7 15.209 Radiated Emissions.............................................................................8 APPENDIX A Spread Spectrum Plots.........................................................................9 APPENDIX B Restricted Band Data...........................................................................21 APPENDIX C 15.207 Conducted Emissions.............................................................24 APPENDIX D 15.209 Radiated Emissions.................................................................26 APPENDIX E Set Up Photos......................................................................................28 A810007.DOC 3 1.0TEST FACILITY Name: Electronic Compliance Laboratories Location:1249 Birchwood Dr. Sunnyvale, CA 94089 Site Filing:A site description is on file at the Federal Communications Commission P.O. Box 429 Columbia, MD 21045 NVLAP LAB CODE: 200089 Types of Sites:Open Field Radiated and Indoor Screen Room (Line Conducted). All sites are constructed and calibrated to meet ANSI C63.4-1994 requirements. 2.0TEST EQUIPMENT DescriptionManufacturer ModelSN Spectrum Analyzer HP8564E3741A00986 EMI ReceiverHP8546A 3325A00137 Spectrum AnalyzerHP8563A 3137A01183 PreampHP8447F 3113A05849 PreampHP8449B 3008A00527 LISNEMANS-25/2 2532 Biconical AntennaEMEM 6912 414 Log Periodic AntEMEM 6950 311 Double Ridge HornEMEM 6961 6231 Filter BP 1.2-45 GHzFSYHM 1160-1155 Filter BP 4-10 GHz FSWHM 2950-1565 001 Filter BP 10-18 GHzFSWHP 8601-7SS 001 3.0EUT WAVENET IP 2458 REMOTE M/N: WaveNet IP 2458 S/N: 001 FCC ID: EV9WNIP2458R 4.0 SUPPORT EQUIPMENT Laptop Toshiba T1900SS/N 11453067 Laptop Power Supply Power Supply for EUT 110V 60 Hz to 24VAC A810007.DOC 4 5.0 EQUIPMENT CONFIGURATION All of the equipment and cables were placed in worst case positions to maximize emissions. Interconnecting cables were of the type and length specified in the individual equipment requirements. Grounding was in accordance with the manufacturer requirements and conditions for intended use. 6.0SUMMARY OF TESTS The WAVENET IP 2458 REMOTE is a Wireless Point to Multipoint data communications System with a low power frequency hopping spread spectrum (FHSS) radio system transmitting in the 5725-5850 MHz band and receiving in the 2400-2483 MHz band. Tests were performed with two different pairs of antennas. Test firmware resident in the EUT and was used to do the test. 6.115.247(a)(1)FREQUENCY HOPPING SYSTEMS WAVENET IP 2458 REMOTE uses 79 channels, each 1 MHz wide. The system hops over one of 26 pseudorandom sequences. On average, each channel is used equally. Please refer to " WaveNet IP System Description attached to this submission for more details. 6.1.115.247(a)(1)(ii)CHANNEL UTILIZATION A spectrum analyzer plots labeled “Channel UTILIZATION". The total number of channels is 79. The channels used have nominal center frequencies of 5770 through 5848 MHz. Three spectrum analyzer MAX HOLD plots labeled "“BANDWIDTH" show the 20 dB bandwidth of the hopping channel to be < 1 MHz (1 / 1 / .995 MHz) at the low/midband/high frequencies of 5770/5809/5848 GHz. Test Plots are shown in Appendix A. Zero span spectrum analyzer plot labeled “DWELL TIME" shows Worst case transmission time in a given slot : 300 msec elapsed time, <100 %. Please refer to “WaveNet IP System description attached to this submission for more details. Maximum allowed:400 msec. Test Data in Appendix A. A810007.DOC 5 6.1.215.247(b)MAXIMUM PEAK OUTPUT POWER The three spectrum analyzer plots labeled " POWER OUT" show the maximum power of the hopping channel to be 24.8 dBm or 304 mW. The E…

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