PHX-RSU2400ANon-Line of Site Wireless Data Link

i Installing and using the Expedience RSU wireless modem Directions for connecting your RSU to a computer or LAN and obtaining high-speed Internet access. ii Expedience and LinkMonitor are trademarks of NextNet Wireless, Inc. Other brand and product names may be registered trademarks or trademarks of their respective holders. Part number: 104-0050-0002-02 ©2002-2004 NextNet Wireless, Inc. All rights reserved. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS GUIDE ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS GUIDE ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCT. FOR WARRANTY INFORMATION ON THE EXPEDIENCE WIRELESS MODEM, CONTACT THE INTERNET SERVICE PROVIDER THAT SUPPLIED THE RSU. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE THAT ARE PROVIDED WITH THE EXPEDIENCE BROADBAND WIRELESS ACCESS MODEM ARE PROVIDED “AS IS” WITH ALL FAULTS. NEXTNET WIRELESS DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO EVENT SHALL NEXTNET WIRELESS OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OF DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS GUIDE, EVEN IF NEXTNET WIRELESS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Contents iii Welcome................................................................................ 1 Before you begin .................................................................. 1 Connecting your RSU to a computer ...................................... 3 Installation overview ............................................................ 3 Setting up the computer to dynamically receive an IP address .... 3 Windows 95, Windows NT, Windows 98, Windows ME: Setting up the network connection .................................................... 3 Windows 2000: Setting up the network connection ................... 3 Windows XP: Setting up the network connection ....................... 4 Plugging in the RSU .............................................................. 4 Finding the strongest service provider signal ............................ 7 Using the indicator lights to find the strongest service provider signal ................................................................................. 8 Using the software-assisted method to find the strongest signal 10 Fine-tuning the connection to the service provider ...................12 Connecting to the Internet ...................................................12 Renewing the host computer’s IP address........................... 13 Windows users: Renewing the IP address ...............................13 Non-Windows users: Renewing the IP address ........................13 Connecting the RSU to a network ........................................ 13 Troubleshooting .................................................................. 13 The RSU can successfully receive a signal at home, but not at work or at a friend’s house ..........................................13 The RSU cannot receive your service provider’s signal ..............14 The RSU’s lights blink in sequence .........................................14 You successfully completed the signal scan, but your Internet browser cannot connect to a web site ........................16 The lights on the RSU blink more slowly than normal ...............16 You receive a dialog box indicating that you cannot connect to your service provider .......................................................16 LinkMonitor application cannot communicate with RSU when VPN is used ................................................................17 RSU malfunctions after you write on the RSU or attach stickers to the RSU .........................................................................17 FCC information ..................................................................19 iv 1 Welcome This document describes how to install and use your Expedience residential subscriber unit (RSU) to obtain wireless high-speed Internet access. You can connect your RSU to a computer or to a small office/home office (SOHO) local area network (LAN) through a hub, switch, or router. BEFORE YOU BEGIN •Make sure your computer is equipped with an Ethernet network interface card (NIC). •The Ethernet cable that is supplied with your RSU plugs into any standard Ethernet NIC. The NIC is not provided with the RSU, but you can purchase a NIC at most computer and electronics stores. •Find an appropriate location for your RSU. •Make sure you are operating the RSU in a room near an outside window on the first or second floor of your home or office. •You need to locate the RSU close to a wall outlet. The RSU uses a standard power supply and can sit on a desktop or shelf. •Your RSU comes with a category-5 Ethernet cable. If you choose to place the RSU a good distance from your computer, you may need to purchase a longer Ethernet cable. If you purchase a cable, make sure the cable is a category-5 Ethernet cable with RJ-45 connectors on each end. •Locate the components shipped with your RSU device: •RSU device •RSU Quick Start Guide •Power cable and power supply box •Ethernet cable 2 Figure 1 illustrates the RSU package contents. Table 1 lists the standard contents in your RSU package. Figure 1: RSU package contents Table 1: RSU package components ComponentPart numberQuantity RSU device (vertical polarization) OR RSU device (horizontal polarization) 900-0050-1000 900-0050-2000 1 Power supply cord420-0015-10001 Power cord597-5120-0107 1 Quick Start Guide102-0015-00031 Ethernet cable597-6010-00011 RSU device Power cable Ethernet cable Power supply Quick Start ibed…

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Reply to ATCB comments for PHX-RSU2400A Page 1 of 3 RE: FCC ID: PHX-RSU2400A 1.) The unit needs to be tested as a system, computer, monitor and printer. Please review. Reply: The NextNet Wireless modem was tested with a laptop computer that contained a keyboard and display, an external serial port mouse, a USB memory stick reader, and an Ethernet router. The NextNet Wireless modem is connected to the router via the Ethernet port on the wireless modem. The NextNet Wireless modem and power supply is only available as an external peripheral device for use in a data transmission network or an accessory to a personal computer and as such has been tested to ensure compliance to the FCC rules as a stand alone device. 2.) Can both transmitters operate simultaneously? If the answers is yes then you will have to perform and intermod test. The radiated spurious emissions will have to show peak value. Reply: No, the NextNet Wireless modem contains only one transmitter and is only capable of transmitting on one channel at a time. 3.) Users Manual needs the Part 15.21 warning statement. (See below) FCC Warning: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Reply: The user’s manual already contains wording that encompasses the intent of 15.21 and can be found in “Exhibit 8 Installation and Operating Manual” on manual page 20. This information is also included in “Exhibit 14 Regulatory Information Sheet”. The wording contained in Exhibit 8 and Exhibit 14 is: “Note: Modification of this device may void the user’s authority to operate the equipment.”. 10/6/2004 Reply to ATCB comments for PHX-RSU2400A Page 2 of 3 4.) The FCC interference statement must replace the 20 cm statement on the DoC Label. Should read: 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. Reply: This information has not been included in its entirety on the product due to space limitations as allowed by the rules in 15.19(a)(5). The empty space to the right of the DOC information on the black label is used for “other” regulatory compliance information. This statement is included in its entirety in the Installation and Operating Manual on manual page 19, and is also included in the Regulatory Information Sheet included in this filing as Exhibit 14. It is the understanding of NextNet Wireless that the “20 cm statement” or radiation hazard information, as defined in 47CFR1.1307, is required to be displayed on the product. 5.) The test report needs to show powerline conducted measurements remember to test as part of a system and provide test setup photos. Please revise test report. Reply: Power line conducted measurements are shown in Exhibit 6A Test Report on pages 88-91. The test setup photograph of the power line measurement is shown on page 83 of Exhibit 6A Test report. The power line conducted measurement is only performed on the NextNet Wireless modem to verify that it does not exceed the FCC limits. 6.) Duty Cycle plots need to be shown confirming 14.29% please show time period and bursts. If the length of the burst is variable please show worst case with time plot. Reply: The duty cycle of the NextNet Wireless modem is limited to a maximum 14.29 % transmit duty cycle. The plots below show a long time sweep of a transmitter enabled at the maximum duty cycle. The time interval between repetition rate is shown to be: 2.304 msec, the time of the first pulse is shown to be 162 usec and the time of the second pulse is shown to be 162 usec. This would yield a transmit duty cycle of: TX duty cycle = time on / total time = (162 usec + 162 usec) / 2.304 msec = 324x10 -6 sec / 2.304x10 -3 sec TX duty cycle = 0.140625 or 14.0625 %. Additional information timing information is presented in “Exhibit 12 Operational Description_frequency stability_tuneup”. 10/6/2004 Reply to ATCB comments for PHX-RSU2400A Page 3 of 3 7.) Is this unit to be used with WiFi MDS system? No. 8.) Please show comments on rational for use in the broadcast band. Reply: The FCC has allowed two way transmissions in the MMDS/ITFS frequency spectrum since 1998. NextNet Wireless has been certifying and shipping products in the 2.5-2.686 GHz band since 2001. Previous products in the broadcast band that have been certified by the FCC and American TCB: PHX-MMDS-CPE1 PHX-MMDS-CPE2 PHX-MMDS-CPE3 PHX-MMDS-CPE4 PHX-MMDS-CPE5 PHX-MMDS-CPE6 PHX-MMDS-BASE1 PHX-MMDS-BASE2 PHX-RBTS2500 Thank you for your attention to these matters. Regards, Tim Blom Principal Engineer NextNet Wireless, Inc. 10/6/2004

Reply to ATCB comments2 for PHX-RSU2400A Page 1 of 8 RE: FCC ID: PHX-RSU2400A 1.) Could you please send powerline conducted and radiated test setup photos using ANSI C63.4 setup diagrams? The FCC requires this along with A2LA and NAVLAP certification bodies. When I receive these photos front and rear of both test setups, I can proceed with the application upload to the FCC. Reply: The PHX-RSU2400A wireless modem was setup for testing per the ANSI C63.4-2003 test arrangement for conducted and radiated emissions. A rescan was performed for conducted emissions with no changes to the original filed information. Photographs attached below. A rescan was performed for the radiated emissions with one spurious signal being slightly out of compliance. A ferrite bead was added to the Ethernet cable which brought the emission into compliance. The rescan information is attached below along with the pictures. Units will ship with a ferrite bead on the Ethernet cable. Regards, Tim Blom NextNet Wireless, Inc. 10/11/2004 Reply to ATCB comments2 for PHX-RSU2400A Page 2 of 8 Conducted Emissions (front view) 10/11/2004 Reply to ATCB comments2 for PHX-RSU2400A Page 3 of 8 Conducted Emissions (rear view) 10/11/2004 Reply to ATCB comments2 for PHX-RSU2400A Page 4 of 8 Radiated Emissions (front view) Radiated Emissions (rear view) 10/11/2004 Reply to ATCB comments2 for PHX-RSU2400A Page 5 of 8 10/11/2004 Reply to ATCB comments2 for PHX-RSU2400A Page 6 of 8 10/11/2004 Reply to ATCB comments2 for PHX-RSU2400A Page 7 of 8 10/11/2004 Reply to ATCB comments2 for PHX-RSU2400A Page 8 of 8 10/11/2004

FCC ID: PHX-RSU2400A Page 1 of 8 Exhibit 2 Attestation Statement Cover Letters NextNet Wireless, Inc 07/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 2 FCC ID: PHX-RSU2400A Attestation Statement Page 2 of 8 The measurements performed on the test sample for this FCC product Certification were performed by me or by personnel under my direction. NextNet Wireless, Inc. part number: 900-0041-1XXX NextNet Wireless, Inc model number: RSU-2400-AV Tim Blom Principal Engineer NextNet Wireless, Inc. Exhibit Summary Exhibit Section Contents 1 FCC ID Label / Location Information 2 Attestation Statement and Cover Letters 3 External Photographs 4 Block Diagrams 5 Schematics 6A Test Report (Part 15 compliance) 6B Test Report (Parts 21/74 compliance) 7 Test Setup Photographs 8 Installation and Operating Manual 9 Internal Photographs 10 Parts List 11 RF Exposure Information 12 Operational Description 13 Correspondence 14 Regulatory Information Sheet 15 Quick Start Sheet NextNet Wireless, Inc 07/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 2 FCC ID: PHX-RSU2400A Attestation Statement Page 3 of 8 Cover Letters Gentlemen: This report is being submitted to the Federal Communications Commission for the certification of equipment pursuant to 47 CFR Telecommunication CHAPTER I FEDERAL COMMUNICATIONS COMMISSION, Parts 0, 1, 2, 15, 21, and 74 deemed as current in the Federal Register as of August 20, 2004. FCC Rule Part Description Response 0.457dii Records not routinely available for public inspection See Exhibit 13 0.459 Requests that materials or information submitted to the Commission be withheld from public inspection. See Exhibit 13 Part 15 “Application for Certification” requirements 2.1033(b) Applications for equipment operating under Parts 11, 15 and 18 of the rules shall be accompanied by a technical report containing the following information: 2.1033(b)1 The full name and mailing address of the manufacturer of the device and the applicant for certification. NextNet Wireless, Inc. 9555 James Avenue South, Suite 270 Bloomington, MN 55431 2.1033(b)2 FCC identifier. PHX-RSU2400A 2.1033(b)3 A copy of the installation and operating instructions. See Exhibit 8 2.1033(b)4 A brief description of the circuit functions of the device along with a statement describing how the device operates. This statement should contain a description of the ground system and antenna, if any, used with the device. See Exhibit 12 2.1033(b)5 A block diagram showing the frequency of all oscillators in the device. The signal path and frequency shall be indicated at each block. The tuning range(s) and intermediate frequency(ies) shall be indicated at each block. A schematic diagram is also required for intentional radiators. See Exhibit 4 2.1033(b)6 A report of measurements showing compliance with the pertinent FCC technical requirements. This report shall identify the test procedure used (e.g., specify the FCC test procedure, or industry See Test Report measurements in Exhibit 6A NextNet Wireless, Inc 07/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 2 FCC ID: PHX-RSU2400A Attestation Statement Page 4 of 8 test procedure that was used), the date the measurements were made, the location where the measurements were made, and the device that was tested (model and serial number, if available). The report shall include sample calculations showing how the measurement results were converted for comparison with the technical requirements. 2.1033(b)7 A sufficient number of photographs to clearly show the exterior appearance, the construction, the component placement on the chassis, and the chassis assembly. The exterior views shall show the overall appearance, the antenna used with the device (if any), the controls available to the user, and the required identification label in sufficient detail so that the name and FCC identifier can be read. In lieu of a photograph of the label, a sample label (or facsimile thereof) may be submitted together with a sketch showing where this label will be placed on the equipment. Photographs shall be of size A4 (21 cm × 29.7 cm) or 8×10 inches (20.3 cm × 25.4 cm). Smaller photographs may be submitted provided they are sharp and clear, show the necessary detail, and are mounted on A4 (21 cm × 29.7 cm) or 8.5×11 inch (21.6 cm × 27.9 cm) paper. A sample label or facsimile together with the sketch showing the placement of this label shall be on the same size paper. See Exhibit 1, Exhibit 3, and Exhibit 9 2.1033(b)8 If the equipment for which certification is being sought must be tested with peripheral or accessory devices connected or installed, a brief description of those peripherals or accessories. The peripheral or accessory devices shall be unmodified, commercially available equipment. See Test Report measurements in Exhibit 6A 2.1033(b)9 For equipment subject to the provisions of part 15 of this chapter, the application shall indicate if the equipment is being authorized pursuant to the transition provisions in §15.37 of this chapter. Tested to comply with the limits currently in effect on 8/20/2004 2.1033(b)10 Applications for the certification of Not applicable NextNet Wireless, Inc 07/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 2 FCC ID: PHX-RSU2400A Attestation Statement Page 5 of 8 scanning receivers shall include a statement describing the methods used to comply with the design requirements of all parts of §15.121 of this chapter. The application must specifically include a statement assessing the vulnerability of the equipment to possible modification and describing the design features that prevent the modification of the equipment by the user to receive transmissions from the Cellular Radiotelephone Service. The application must also demonstrate compliance with the signal rejection requirement of §15.121 of this chapter, including details on the measurement procedures used to demonstrate compliance. 2.10…

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FCC ID: PHX-RSU2400A Page 1 of 3 NextNet Wireless, Inc 09/27/2004 Exhibit 3 External Photographs 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 3 FCC ID: PHX-RSU2400A External Photographs Page 2 of 3 Front view NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 3 FCC ID: PHX-RSU2400A External Photographs Page 3 of 3 Back view NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431

FCC ID: PHX-RSU2400A Exhibit 1 Labeling Requirements and Information NextNet Wireless, Inc 09/27/2004 9555 James Ave. South, Suite 270 Page 1 of 3 Bloomington, MN 55431 Exhibit 1 FCC ID: PHX-RSU2400A Labeling Requirements 09/27/2004 NextNet Wireless, Inc. 9555 James Avenue South Suite 270 Bloomington, MN 55431 RE: FCC Labeling Requirements FCC ID: PHX-RSU2400A NextNet Wireless, Inc model: RSU-2400-AV The following label information is required by the FCC Rules and Regulations for certified devices and Class B personal computers and peripherals. Thank you for your attention to these matters. Sincerely, Tim Blom NextNet Wireless, Inc. NextNet Wireless, Inc 09/27/2004 9555 James Ave. South, Suite 270 Page 2 of 3 Bloomington, MN 55431 Exhibit 1 FCC ID: PHX-RSU2400A Labeling Requirements The FCC ID label will be attached to the RSU-2400-AV product with a permanent adhesive. Label samples NextNet ® Wireless Inc., Minneapolis, MN 55431 USA FCC ID: PHX-RSU2400A Part Number: 900-0041-1XXX ||||||| ||||| ||||| |||||||||| ||||||| ||||| ||||| |||||||||| SN: 1234X123XAAX87654321 ||||||||||||| |||||||||||| |||||||||||||||||| ||||||||||||| |||||||||||| |||||||||||||||||| This device complies with Part 15 of the FCC Rules. RSU-2400-AV 12 - 19.5Vdc 24 Watts Vertically polarized antenna RSU-2400-AV label To comply with FCC radio frequency exposure rules, 47CFR1.1307 and 1.1310, a minimum separation of 20 cm (8 inches) is required between this device and all persons. Declaration of Conformity label Photograph showing label location product NextNet Wireless, Inc 09/27/2004 9555 James Ave. South, Suite 270 Page 3 of 3 Bloomington, MN 55431

FCC ID: PHX-RSU2400A Page 1 of 8 NextNet Wireless, Inc 09/27/2004 Exhibit 9 Internal Photographs 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 9 FCC ID: PHX-RSU2400A Internal Photographs Page 2 of 8 RF Board component side (no shields) NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 9 FCC ID: PHX-RSU2400A Internal Photographs Page 3 of 8 RF Board, Low Pass Filter component side (with shields) Low Pass Filter Assembly (Top Side) Low Pass Filter Assembly (Bottom Side) NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 9 FCC ID: PHX-RSU2400A Internal Photographs Page 4 of 8 Main PC Board back side NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 9 FCC ID: PHX-RSU2400A Internal Photographs Page 5 of 8 Antenna Plate (antenna side) NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 9 FCC ID: PHX-RSU2400A Internal Photographs Page 6 of 8 Antenna Plate (back side) NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 9 FCC ID: PHX-RSU2400A Internal Photographs Page 7 of 8 Vertically Polarized Antenna NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 9 FCC ID: PHX-RSU2400A Internal Photographs Page 8 of 8 Vertically Polarized Antenna (copper side) NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431

Exhibit 11 FCC ID: PHX-RSU2400A Radio Frequency Exposure Page 1 of 6 Exhibit 11 RF Exposure Information NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 11 FCC ID: PHX-RSU2400A Radio Frequency Exposure Page 2 of 6 Radio Frequency Radiation Exposure Evaluation Rule Part Number: 1.1307, 1.1310, 2.1091 1.1307 Actions that may have a significant environmental effect, for which Environmental Assessments (EAs) must be prepared. TABLE 1—TRANSMITTERS, FACILITIES AND OPERATIONS SUBJECT TO ROUTINE ENVIRONMENTAL EVALUATION Multipoint Distribution Service (subpart K of part 21). Non-building-mounted antennas: height above ground level to lowest point of antenna < 10 m and power > 1640 W EIRP Building-mounted antennas: power > 1640 W EIRP MDS licensees are required to attach a label to subscriber transceiver or transverter antennas that: (1) provides adequate notice regarding potential radio frequency safety hazards, e.g., information regarding the safe minimum separation distance required between users and transceiver antennas; and (2) references the applicable FCC-adopted limits for radio frequency exposure specified in § 1.1310. Experimental, auxiliary, and special broadcast and other program distributional services (part 74). Subpart I: non-building-mounted antennas: height above ground level to lowest point of antenna < 10 m and power > 1640 W EIRP Building-mounted antennas: power > 1640 W EIRP ITFS licensees are required to attach a label to subscriber transceiver or transverter antennas that: (1) provides adequate notice regarding potential radio frequency safety hazards, e.g., information regarding the safe minimum separation distance required between users and transceiver antennas; and (2) references the applicable FCC-adopted limits for radio frequency exposure specified in § 1.1310. 1.1310 Radio frequency radiation exposure limits. TABLE 1—LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) (A) Limits for Occupational/Controlled Exposures 1500–100,000 ..................... ...................... ......................... 5 6 (B) Limits for General Population/Uncontrolled Exposure 1500–100,000 ..................... ..................... ...................... 1.0 30 f = frequency in MHz NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 11 FCC ID: PHX-RSU2400A Radio Frequency Exposure Page 3 of 6 Radio Frequency Radiation Exposure Evaluation § 2.1091 Radio Frequency radiation exposure evaluation: mobile devices. (a) Requirements of this section are a consequence of Commission responsibilities under the National Environ-mental Policy Act to evaluate the environmental significance of its actions. See subpart I of part 1 of this chapter, in particular § 1.1307(b). (b) For purposes of this section, a mobile device is defined as a transmitting device designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitter’s radiating structure(s) and the body of the user or nearby persons. In this context, the term ‘‘fixed location’’ means that the device is physically secured at one location and is not able to be easily moved to another location. Transmitting devices designed to be used by consumers or workers that can be easily relocated, such as wireless devices associated with a personal computer, are considered to be mobile devices if they meet the 20 centimeter separation requirement. (d) The limits to be used for evaluation are specified in § 1.1310 of this chapter. All unlicensed personal communications service (PCS) devices and unlicensed NII devices shall be subject to the limits for general population/un-controlled exposure. (1) For purposes of analyzing mobile transmitting devices under the occupational/ controlled criteria specified in § 1.1310 of this chapter, time-averaging provisions of the guidelines may be used in conjunction with typical maximum duty factors to determine maximum likely exposure levels. (2) Time-averaging provisions may not be used in determining typical exposure levels for devices intended for use by consumers in general population uncontrolled environments as defined in § 1.1310 of this chapter. However, ‘‘source-based’’ time-averaging based on an inherent property or duty- cycle of a device is allowed. An example of this is the determination of exposure from a device that uses digital technology such as a time-division multiple-access (TDMA) scheme for transmission of a signal. In general, maximum average power levels must be used to determine compliance. Calculations: The NextNet Wireless Expedience RSU-2400-AV operates at a maximum of 2 watts (33dBm) average power while transmitting in the 2500-2686 MHz band, and a maximum of 0.562 Watts (27.5 dBm) when transmitting in the 2400-2483.5 MHz band. The RSU- 2400-AV has a maximum transmit duty cycle of 14.29 % and is based on a TDM frame. The vertically polarized antenna for the RSU-2400-AV has a maximum gain of 13.5 dBi. Therefore the maximum radiated transmit power would be: 2500-2686 MHz Band: 14.29 % Transmit duty cycle: Pmax = Ptx + G(antenna) - 10*log(duty cycle) Pmax = 33 + 13.5 - 10*log(0.1429) = 33 + 13.5 - 8.45 Pmax = 38.05 dBim = 6.3826 Watts EIRP < 1640 Watts EIRP 2400-2483.5 MHz Band: 14.29 % Transmit duty cycle: Pmax = Ptx + G(antenna) - 10*log(duty cycle) Pmax = 27.5 + 13.5 - 10*log(.1429) = 33 + 13.5 – 8.45 Pmax = 32.55 dBim = 1.7989 Watts EIRP Pmax = 1.7989 Watts EIRP < 4 Watts EIRP (15.247 limit) NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 11 FCC ID: PHX-RSU2400A Radio Frequency Exposure Page 4 of 6 Radio Frequency Radiation Exposure Evaluation Calculations: The following calculations can be used to determine the dis…

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FCC ID: PHX-RSU2400A Page 1 of 113 NextNet Wireless, Inc 09/27/2004 Exhibit 6B Test Report Parts 21/74 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 6 FCC ID: PHX-RSU2400A Test Report Page 2 of 113 RF Power Output Rule Part Number: 2.1046, 21.909(g)(2), 21.909(n), 74.939(g)(2), 74.939(p) Tx Power < 2 watts EIRP < 18 dBW Test Procedure: The RF output power is measured with a spectrum analyzer. The RF output is applied to an attenuator that is connected to the spectrum analyzer RF input port. The transmitter is enabled in test mode with the attached computer. Measurements are performed at three frequencies across the band, for each of the modulation formats available (4 QAM, 16 QAM, and 64 QAM), and 12 , 15, and 19.5 Vdc. Test Conditions: Frequency = 2503, 2593, 2683 MHz Temperature = 25 ° C Voltage = 12, 15, 19.5 Vdc Test Set-Up: Spectrum AnalyzerDUT Power Supply Ethernet Switch 41.2 dB Computer Test Results Summary: Pass Tx power at antenna connector (≤ 2 watts) across frequency band, modulation level, and input supply voltage range. NextNet Wireless, Inc 09/27/2004 9555 James Ave. South Suite 270 Bloomington, MN 55431 Exhibit 6 FCC ID: PHX-RSU2400A Test Report Page 3 of 113 RF Power Output Test Equipment: DUT NextNet Wireless CPE (RSU-2400-AV) # 2008687 Spectrum Analyzer Agilent E4440A S/N: MY44022791 Calibrated on: 05/30/2004 Cal due: 05/30/2006 Attenuator(s) 2 x 20 dB Pasternak Corporation Model: PE7005-20 (20 dB) Calibrated by user Computer Dell Inspiron 5000 Model: PPM S/N: 000832RM-12961-04R-0441 Ethernet Switch D-Link Model: DSS-5+ 5 port 10/100Mbps S/N: B205335003175 Power Supply 1 Globetek Model: GT-21148-3015-T3 15 Vdc / 1.6A Limited Power Source S/N: 00430704 Power Supply 2 Globetek Model: GT-21097-5020-0.5 19.5 Vdc / 2.5 A Limited Power Source S/N: 003808 09/03 Power Supply 3 Agilent E3615A 0-20 Vdc / 0-3 A S/N: KR01508861 Multimeter HP 34401A Multimeter Cal Date: 08-03-2004 Cal Due: 08-03-…

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