QWP54XXFixed Point to Point Wireless Bridge

PTP 400 Series User Guide MOTOROLA POINT-TO-POINT WIRELESS SOLUTIONS 1 MOTOROLA, Inc. Point-to-Point Wireless Bridges – PTP 400 Series Software Release 400-09-00 System User Manual November 24 th , 2006 Ref: PHN-0872-02.07 Copyright Information This document is the confidential property of Motorola, Inc. and without its prior written consent may not be copied or released to third parties. MOTOROLA, the stylized M Logo and all other trademarks indicated as such herein are trademarks of Motorola, Inc. ® Reg. U.S. Pat & Tm. Office. PTP 400 is a trademark of Motorola, Inc. All other product or service names are the property of their respective owners. © 2006 Motorola, Inc. All rights reserved. http://www.motorola.com Compliance General Changes or modifications not expressly approved by Motorola could void the user’s authority to operate the system. NOTE: This system has achieved Type Approval in various countries around the world. This means that the system has been tested against various local technical regulations and found to comply. The frequency band in which the system operates is ‘unlicensed’ (except from the 4.9 Ghz product) and the system can be used provided it does not cause interference. Further, it is not guaranteed protection against interference from other products and installations. 2 The system has basically been shown to comply with the limits for emitted spurious radiation for a Class B digital device 1 , pursuant to Part 15 of the FCC Rules in the USA as well as comparable regulations in other countries. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to other equipment, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the Outdoor Unit (ODU). • Increase the separation between the equipment and ODU. • Connect the equipment into a power outlet on a circuit different from that to which the receiver is connected. Consult your installer or supplier for help. Deployment and Operation The Radio Regulations of various countries’ limits constrain the operation of radio products generally. In particular the local regulator may limit the amount of conducted or radiated transmitter power and may require registration of the radio link. The power transmitted by the PTP 400 Series is controlled by the use of Region-specific License Keys. The following examples show how the regulatory limits apply in some specific countries at the current time. Operators should note that regulations are subject to change. Contact your supplier/installer to ensure that your product is set for the correct License Key for your Country/Region and to ensure that you have fulfilled all the local regulatory requirements, especially if you are intending to use a link with external antennas. Footnotes to the table below indicate countries where registration of the link is currently mandatory. 1 Class B Digital Device, A digital device that is marketed for use in a residential environment notwithstanding use in commercial, business and industrial environments. 3 Regulations applicable to 4.9 GHz PTP 400 Series Bridge variant (49400) Examples of Regulatory Limits at 4.9GHz Power/Radiated Power/Region Setting Non-FCC and Non-ETSI Operation not currently allowed FCC FCC Part 90 Canada RSS-211 ETSI Operation not currently allowed Note that this product is specifically intended for professional installation. The integrated antenna version may be installed as shipped from Motorola. The Connectorized version must have the Maximum Transmit Power setting reduced if it is installed with antennas having a directional gain of >26dBi (net of cable losses). The reduction is 1dB for every 1dB that the antenna gain (net of cable losses) exceeds 26dBi. See Section 8.3.1” System Configuration Page” and Section 8.3.5.3 “Wireless Configuration” for details on adjusting the Maximum Transmit Power. 4 Regulations applicable to 5.4 GHz PTP 400 Series Bridge variant (54400) Examples of Regulatory Limits at 5.4GHz Power/Radiated Power/Region Setting Non-FCC and Non-ETSI 2 Equipment can be operated in any mode, best results will be obtained using Region 8 settings (Region 7 if DFS is required) FCC Under FCC Regulations, operation of this product is only allowed with a License Key for Region 9 (27dBm EIRP with Radar Detection) Canada Under IC Regulations, operation of this product is only allowed with a License Key for Region 10 (27dBm EIRP with Radar Detection and barring off the band 5600-5650MHz) ETSI Under ETSI Regulations, operation of this product is only allowed with a License Key for Region 9 (27dBm EIRP with Radar Detection) General Notice Applicable to Europe This equipment complies with the essential requirements for the EU R&TTE Directive 1999/5/EC. 2 Note: In regions other than EU/USA, specific local regulations may apply. It is the responsibility of the installer/user to check that the equipment as deployed meets local regulatory requirements. 1321 5 Regulations applicable to 5.8 GHz PTP 400 Series Bridge variant (58400) Examples of Regulatory Limits at 5.8GHz Power/Radiated Power/Region Setting USA/ Canada/ Taiwan/ Brazil Equipment can be operated in any mode, best results will be obtained using Region 1 settings UK 3 Under UK Regulations, operation of this product is only allowed with a License Key for Region 4 (1W EIRP with Radar Detection) Eire 4 Under Eire Regulations, operation of this product is only allowed with a License Key for Region 6 (1W EIRP) Norway Norwegian rules allow a 200W EIRP but also require Radar Detection (DFS) and barring of part of the band. The license key for Region 7 is required, alt…

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MOTOROLA 2 February, 2007 Compliance Certification Services Certification Division 56IF Monterey Road Morgan Hill, CA 95037 To whom it may concern: We, the undersigned, hereby authorize the Testing Division of Compliance Engineering Services, Inc., d.b.a. Compliance Certification Services and hereafter referred to as CCS, to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by CCS on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988,21 U.S.C. 853(a). In authorizing CCS Testing Division as our agent, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; Operating Office: UnitAl, Linhay Business Park, Eastern Road, Ashburton, Devon, TQ13 7UP, United Kingdom MOTOROLA h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to the us relating to the product's compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested; • take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; • document the actions taken. This authorization is valid until further written notice from the applicant. Clem Fisher RF Development Manager Motorola Point to Point Fixed Wireless Solutions Group Operating Office: Unit At, Linhay Business Park, Eastern Road, Ashburton, Devon, TQ13 7UP, United Kingdom

MT-483010/SMT-485005/VHN MT-485001MT-485028/N SubscriberSubscriberSubscriberSubscriber Frequency BandGHz4.9-5.8755.25-5.8755.15-5.8755.15-5.875 GaindBi (Min)13181822 VerticalDual V+HLinear V/HLinear V/H Port to Port IsolationdB (Min)30-- AZ/EL BWDegree75/1817/1718/189/9 ETSIN/ATS3-TS3 Sidelobe LeveldB (Max) -12-12-12TS3 Cross Polarization Level dB (Max) --20-23TS3 Front to Back RatiodB (Max) -20-30-35-35 VSWR 50 Ohm1.5:11.7:11.7:11.7:1 Maximum Input PowerWatt6666 Dual Pol.BroadbandBroadband Low Cost Sizemm325x92x15190x190x30190x190x30305x305x15 WeightKg (Max) 0.60.70.71.5 ConnectorSMA Female2 x N-Type FN-Type FN-Type F Mounting Ki tStand AloneMT-120018/AMT-120018/AMT-120018 EnvironmentalKey Features Temperature Range Vibration Mechanical Shock Humidity Water Tightness Salt Spray Solar Radiation Ice and Snow Wind Speed Flammability Notes - Very aestheti c All specifications are subject to change without notice Preliminary specs are for antennas under development Upon request MTI may provide the complete spec controlled document for specific antenna 25mm Radial- Narrow and b 160 Kmph Operation/220 Kmph Survival- Meets ETSI e requirementsUL-94HB (excluding MT-465005/N,MT-485028/N) Per IEC 529 IP67 (IP52 for some BTS antennas) - Various polari 500 hours per IEC 68- Various confi g standalone, inte1000 hours per ASTM G53 4M3 per IEC 60721- Low profile 95% per ETSI EN300- Environment a -45 to +70 degree per IEC 68- High-Quality L Random 4M3 per IEC 60721- Lightweight an Additional FeaturesIndoor Antenna Mechanical Antenna P/N Type Electrical Polarization 5.3/5.8GHz Subscrib Tel: +972-3-900-8900 Fax:+972-3-900-8901 www.mtiwe.com MTI Wireless Edge Ltd. 11 Hamelacha St. Afek Industrial Park Rosh Ha'ayin 48091, Israel Last Update: 9/1/2006 MT-485034/N MT-485002 MT-485025/NVH MT-486004/N MT-20004MT-486001 MT-486009 SubscriberSubscriberSubscriberSubscriberSubscriberSubscriberSubscriber PreliminaryPreliminary 5.25-5.8755.15-5.8755.15-5.8755.15-5.8755.725-5.875 5.15-5.8755.15-6 23232326282828 Linear V/HLinear V/HDual V+HLinear V/HLinear V/HLinear V/HLinear V/H --40 - --- 10/109/99/96/64.5/4.54.5/4.54.5/4.5 -TS3TS3TS1-TS5TS1-TS5TS1-TS5TS1-TS5 -20TS3TS3TS1-TS5TS1-TS5TS1-TS5TS1-TS5 -20-28TS3-20-28-28TS1-TS5 -35-32-35-30-40-40-40 1.7:11.7:11.7:11.7:11.7:11.7:11.7:1 10666 6 66 BroadbandDual Pol.BroadbandISM OnlyBroad Band Broad Band High Grade 305x305x15305x305x25 371x371x40450x450x30600x600x50 600x600x50 600x600x50 1.21.52.53555 N-Type FN-Type F2 x N-Type FN-Type FN-Type FN-Type FN-Type F MT-120018MT-120018 MT-120018MT-120018MT-120019MT-120019 MT-120019 Benefits - Provides High performance Low Cost subscriber - Reduces the cost of installation - Maintains real estate aesthetic look and value - Generates low wind load c look broad band electrical and environmental ities gurations such as egrated or internal al friendly Low-Cost ntenna with easy installation Diamond sha pe ber Antennas

MOTOROLA 2 February 2007 Federal Communications Commission Equipment Authorization branch 7435 Oakland Mills Road Columbia, MD 21046 Re: Request for Confidentiality Gentlemen: In reference to the application under FCC ID:QWP54XX, and pursuant to Sections 0.457(d)(l)(ii) and 0.459 of the Commission's Rules, the Applicant hereby requests confidential treatment of the accompanying information as outlined below: • 3 off Schematics in .pdf format covering the Indoor Unit, Outdoor Unit (Digital) and Outdoor Unit (RF) o PTP54400_Gemini PIDU Schemntic.pdf o PTP54400j3emini Digital Schematic.pdf o PTP54400_Gemini 5.4GHz RF Schematic.pdf • RF Block Diagram in .pdf format o PTP54400_Gemini Block Diagram phn-0894 J)00v001 .pdf • Theory of Operation (Operational Description) o PTP54400_Gemini Operational Description.pdf These documents contain detailed system and equipment descriptions and related information about the product that Motorola Point to Point Fixed Wireless Solutions Group considers to be proprietary, confidential, and a custom design and, otherwise, would not release to the general public. Since this design is a basis from which future technological products will evolve, Motorola Point to Point Fixed Wireless Solutions Group considers that this information would be of benefit to its competitors, and that disclosure of the information in these documents would give competitors an unfair advantage in the market. Sincerely, Clem Fisher RF Development Manager Motorola Point to Point Fixed Wireless Solutions Group Operating Office: UnitAI, Linhay Business Park, Eastern Road, Ashburton, Devon, 7013 7UP, United Kingdom

Date: March 12, 2007 To: Andrew Leimer, FCC [email protected] From: Michael Heckrotte, CCS [email protected] Applicant: Orthogon Systems Ltd FCC ID: QWP54XX Correspondence Reference Number: 32613 731 Confirmation Number: EA397650 Date of Original E-Mail: 2/28/2007 Subject: DFS 1) What are the highest and lowest carrier frequencies for this device to be listed on the Grant. The application lists 5500-5700 KHz, the block diagram lists 5477-5719 MHz, and the test reports indicate 5470-5725 MHz. <Answer> The carrier frequency range is 5486 to 5708 MHz. Please see revised block diagram and test reports. The revised RFI Test Report was uploaded on 03/01/07. The revised CCS Test Report and Revised Block Diagram are being uploaded today along with this letter. 2) Is this a single BW device? The DFS test report measured 10.4 MHz and the EMC test report measures approximately 26 MHz. Please explain this discrepancy. <Answer> This is a single bandwidth device and the nominal BW is 10 MHz. The original RFI report that was uploaded was for a sister model series. The revised RFI report is for this product, and the BW is consistent among the test reports. 3) This device is professionally installed. NTIA and the DoD do not permit any end-user or professional installer access to any DFS settings or controls. Please verify. <Answer> Yes, only the factory has access to DFS settings and controls. Neither the end-user nor the professional installer has accesss to any DFS settings or controls. 4) The DFS test report was for the device operating as a master. This is a proprietary system that can operate as a master and a client. As such, this device should also be tested in the client mode. Please submit an addendum to the DFS test report with data for the client mode. <Answer> The test report as submitted covers both configurations; please see Section 6.1.13 of the CCS test report for the DFS data for the client mode. 5) Verify that the NTIA approved MPEG2 file was streamed and that the master and client were associated with each other when required. <Answer> Yes, the NTIA approved MPEG2 file was streamed from the master to the client and the master and client were associated with each other when required.

Date: April 10, 2007 To: FCC From: CCS Re: Orthogon (Motorola) EA397650 RT Question These responses are to questions sent by Andrew Leimer on Thursday, April 5, 2007 to Michael Heckrotte of CCS. 1. How does the optimization in the system configuration page affect the performance level? For example: - Link mode optimization: 1) IP traffic 2) TDM traffic -> how does either one affect RF channel loading based on duty cycle? Response : As far as DFS is concerned there is no impact; TDM traffic is generally low rate but more sensitive to errors; the software is therefore more conservative in selecting higher order modulation modes in TDM mode. Everything else is the same 2. Link Symmetry: There are couple of ratio indicated here. Is the ratio representing the transmission time vs. receiving time? Why would only radar detection bandwidth test require the ratio to be set at 1:2 while the rest of the test use the symmetric link? According to the setup documentation on page 13 and 14, the link symmetry had to be changed from symmetric to test mode. What exactly does this change affect the system behavior? Response: The reason for setting the ratio differently for the detection bandwidth test is that the FCC requirement for testing the Radar Detection Bandwidth says (Para 7.8.1 of FCC 06-96) 'Set the UUT up as a standalone device (no associated Client or Master, as appropriate) and no traffic. Frame based systems will be set to a talk/listen ratio of 0%/100% during this test.' The PTP54400 product cannot be set to 100% receive mode; the TDD structure is always operating. We determined in our own testing that we could best demonstrate meeting the detection bandwidth requirements by testing with 1:2 assymetric mode as this gets closest to 100% receive mode on the Master (note that 1:2 is purely a test mode, not available on the production software). All other tests were performed with the TDD structure available to users. 3. Throughput optimization: What's the difference in optimizing between data and low latency? How does it affect the detection rate? Response : Data Throughput allows for longer Transmit and Receive intervals, whereas Low Latency has a shorter Tx/Rx cycle to prevent queuing of packets. Data Throughput offers Tx/Rx intervals of 16/16 OFDM Symbols (Symmetric) or 16/8 (Assymetric) where the first number refers to Master Tx Length. Low Latency operation is always 8/8. Our simulations and tests showed that all options comfortably met the requirements but the worst case involved receive periods of 8 OFDM Symbols. As the Low Latency option is the factory default setting and that operates with a fixed receive period of 8 OFDM symbols, that mode selected for the formal DFS testing.

To: Andrew Leimer [email protected] FCC Application Processing Branch Applicant: Orthogon Systems Ltd FCC ID: QWP54XX Form 731 Confirmation Number: EA397650 Date of Original E-Mail: 04/05/2007 Correspondence Reference Number:32833 1) The antenna information recently added to the application indicates that this device can operate with antennas from +13 to +22 dBi gain depending on the model. It looks like the test sample has a 22 dBi gain antenna. This limits the Grant to operation only with the 22 dBi antenna. Verify that the intent of this application is only for the 22 dB! i antenna. The general DFS antenna policy is: For EMC Tests: The device must be tested with the highest antenna gain for each antenna type FOR DFS Tests: The device must be tested with the lowest antenna gain. Antenna type is irrelevant for receiver threshold detection. The receiver must be tested as worst case so the lowest antenna gain must be used providing the least receiver sensitivity to radar signals. The manufacturer can then market the device with antennas that fall within the antenna criteria above as long as the RF exposure requirements are met. <CCS ANSWER:> Our integrated antenna is 23dBi not 22dBi; we are happy for the grant to be limited to that. 2) The antenna is a H/V linear polarization. Both the H and V inputs are connected to the main board. This is essentially two antennas - one horizontal and one vertical. Do both polarizations act in tandem or do they operate separately? Please explain how the antenna operates? <CCS ANSWER:> The system is MIMO and we use H/V antennas to give polarisation diversity. The same information is transmitted on each antenna and the optimally combined signal recreated at the receiver. Therefore we add the H/V power levels together to compare with operating power limits. We also use the total power on the two antennas to determine the radar detection threshold applied to each antenna (worst case). The Tx/Rx circuits are identical for both H and V antennas. 3) You will be sent a separate E-mail with configuration questions. This is done to protect the applicant's proprietary information. <CCS ANSWER:> The email was received, thank you. We responded to it this morning (April 10, 2007). Please note that we responded on the website, and are unsure about confidentiality. Thank you. September Radecki for Michael Heckrotte

PTP 54400 ODU CAUTION:This product must be installed in accordance with the instructions in the User Manual ESN: (MAC Address) MSN: Complies with UL60950 CSA C22.2 No. 60950 LISTING No: E112443 1321 Label Part Number # 2428 not printed (latest) Made in: EU Power Requirements: 55V 1.2A Model No: 5430BHFull Model No: 5430BH20Lite FCC ID: QWP54XX IC:109AO-54XX This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1 This device may not cause harmful interference, and 2 This device must accept any interference received, including interference that may cause undesired operation.

MOTOROLA POINT TO POINT FIXED WIRELESS SOLUTIONS GROUP Working Paper Analysis of the FCC Regulations for Radiation Safe Distance with respect to the OS54XX/PTP54400 Products C.F.Fisher Ref: phn-0952 Abstract This document analyses the exclusion zone required to ensure human radiation level limits are not exceeded by the OS54XX/PTP54400 range of products with integrated or external antennas. The guidelines in FCC Bulletin 65 are used to compute the safe distances. This document is the confidential property of Motorola, Inc. and without its prior consent may not be copied or released to 3 rd parties. The parameters quoted in this document must be specifically confirmed in writing before they become applicable to any particular order or contract. The company reserves the right to make alterations or amendments to the detail specification at its discretion. The publication of information in this document does not imply freedom from patent or other rights of Orthogon Systems or others. Orthogon Systems and Motorola in Confidence Revision History Version Date Comments Author 0.001 10 Nov 2006 Initial Issue CF 0.002 23 April 2007 Correct errors, remove reference to connectorised versions CF 0.003 24 April 2007 Modify to show power density at 20cm CF Phn-0952 000V003 Page 2 of 4 Orthogon Systems and Motorola in Confidence Operational Parameters of the OS54XX/PTP54400 Product 1 Scope The purpose of this brief working paper is to identify the mean RF power produced by the OS54XX/PTP54400 equipment under various operating conditions. The two part numbers reflect changes in product branding but the product performance is not affected. This mean RF power plus the antenna gain used in specific installations identifies the effective power density (dBm/cm 2 ) that is to be compared against allowed limits for human exposure. 2 References Evaluating Compliance with FCC Guidelines for Human Exposure to Radio frequency Electromagnetic Fields: OET Bulletin 65, Edition 97-01, August 1997 [1] 3 Background Reference [1] identifies how the radiated power density should be calculated for different distances from the antenna. The variables used are Radiated Power Density (S), conducted power (P), Antenna Gain (G) and distance (R) . The formula given is S= (P * G)/(4 * Pi * R) 2 The limit allowed for S depends on whether the exposure risk is to a member of the public or not. The limits for public exposure are the lower, and so a power density limit of 1mW/cm 2 is used for S. This is used to compute a ‘safe’ distance from the antenna. It is clear from [1] that the power to be used should be the RMS power averaged over a period of 6 minutes. Notes a) the FCC require that the power density be calculated at a minimum distance of 20cm b) the value of P * G is the same as the transmitted EIRP. 4 OS54XX/PTP54400 Specific Issues 4.1 FCC Regulations The OS54XX/PTP54400 is approved under FCC Part 15.407 and this regulation limits the maximum EIRP to 27dBm in a 10MHz channel. As are two polarisations transmitted by OS54XX/PTP54400, this total power cannot be exceeded by the sum of the two powers transmitted. The OS54XX/PTP54400 ensures that this power cannot be exceeded. 4.2 Power Control The power levelling loops in the product measure the transmitted power on both polarisations at all times and limit each to the Maximum Transmit Power –3dB. The Maximum RMS Transmit Power during the transmit period (total for both polarisations) Phn-0952 000V003 Page 3 of 4 Orthogon Systems and Motorola in Confidence for OS54XX/PTP54400 equipments in production is set to 4dBm to ensure that the 27dBm Maximum EIRP requirement is met with the supplied antenna (23dBi). The transmit duty cycle for the equipment is a normally <50%. However some modes of operation do allow a transmit duty cycle of 60%. As the regulations refer to mean radiation power density over a 6 minute averaging period, the duty cycle is likely to be 60% worst case. This reduces the effective EIRP (in the worst case) by 2.2dB from the Maximum RMS transmitted EIRP. It should be noted that this is very much a worst case as the product operates Receiver driven Transmit power control. 4.3 FCC Testing The testing has confirmed that the maximum power was not exceeded. 5 Analysis The table below shows the radiated power density at a distance of 20cm from the antenna and confirms that the power density level is below the safe limit at that distance. Total EIRP in burst 27 dBm Less TDD duty cycle -2.2 dB Total Mean EIRP 302 mW Safety Power Density Limit 1 mW/cm2 Radiated Density at 20cm 0.060081mW/cm2 6 Conclusion The equipment meets the safe limit for general exposure at a distance of 20cm with a margin of over 12dB. Phn-0952 000V003 Page 4 of 4

MOTOROLA POINT TO POINT FIXED WIRELESS SOLUTIONS GROUP Working Paper Analysis of operating and installation requirements to satisfy FCC Regulations for RF exposure compliance for the OS54XX/PTP54400 Products C.F.Fisher Ref: phn-0952 Abstract This document analyses the operating and installation requirements to ensure limits for RF Exposure Compliance are not exceeded by the OS54XX/PTP54400 range of products with integrated antennas. The guidelines in FCC Bulletin 65 are used for the analysis. This document is the confidential property of Motorola, Inc. and without its prior consent may not be copied or released to 3 rd parties. The parameters quoted in this document must be specifically confirmed in writing before they become applicable to any particular order or contract. The company reserves the right to make alterations or amendments to the detail specification at its discretion. The publication of information in this document does not imply freedom from patent or other rights of Orthogon Systems or others. Orthogon Systems and Motorola in Confidence Revision History Version Date Comments Author 0.001 10 Nov 2006 Initial Issue CF 0.002 23 April 2007 Correct errors, remove reference to connectorised versions CF 0.003 24 April 2007 Modify to show power density at 20cm CF 0.004 24 May 2007 Modified to provide clarifications required by FCC CF 0.005 29 May 2007 Additional modifications required by FCC CF 0.006 30 May 2007 Modifications required by FCC CF Phn-0952 000V006 Page 2 of 5 Orthogon Systems and Motorola in Confidence Operational Parameters of the OS54XX/PTP54400 Product 1 Scope The purpose of this brief working paper is to identify the RF power produced by the OS54XX/PTP54400 equipment under various operating conditions. This mean RF power plus the antenna gain used in specific installations identifies the effective power density (dBm/cm 2 ) that is to be compared against allowed limits for human exposure. The two part numbers in the heading above reflect changes in product branding only; the product performance is not affected. 2 References Evaluating Compliance with FCC Guidelines for Human Exposure to Radio frequency Electromagnetic Fields: OET Bulletin 65, Edition 97-01, August 1997 [1] 3 Background Reference [1] identifies how the radiated power density should be calculated for different distances from the antenna. The variables used are Radiated Power Density (S), conducted power (P), Antenna Gain (G) and distance (R) . The formula given is S= (P * G)/(4 * Pi * R) 2 The limit allowed for S depends on whether the exposure risk is to a member of the public or not. The OS54XX/PTP54400 products are approved by the FCC under the UNII Rules (Part 15.407). This requires (Part 15.407(f) that all products meet the radio frequency radiation requirements for the “general population/uncontrolled environment” case. At the frequency of operation of these products, this requires that the value of S to be used is 1mW/cm 2 . It is clear from [1] that the power to be used should be the maximum transmitted power, subject to any allowance for source-based time-averaging. Notes a) the FCC require that the power density be calculated at a minimum distance of 20cm b) the value of P * G is the same as the transmitted EIRP. 4 OS54XX/PTP54400 Specific Issues 4.1 FCC Regulations The OS54XX/PTP54400 is approved under FCC Part 15.407 and this regulation limits the maximum EIRP to 27dBm in a 10MHz channel. The OS54XX/PTP54400 products ensure that this power cannot be exceeded. 4.2 Dual Polarisation The OS54XX and PTP54400 products use an integrated dual polarised antenna, with each polarisation connected to an identical transceive…

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