OJB-SSC10ExcelMAX Customer Premise Equipment (CPE)

Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 September 30, 2010 Request for Confidentiality Company name: Axxcelera Broadband Wireless, Inc. FCC ID: OJB-SSC10 FCC Part 90 Certification Gentlemen, Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type CPE Schematic CPE Block Diagram CPE Technical Overview CPE Installation Guide Internal Photos The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The exhibits listed are commonly held confidential. With specific regard to Internal Photos, they will reveal material sources and thereby associated cost information, which would be harmful to the applicant. In addition, the equipment is not accessible by the general public and is only serviceable by an operator’s trained personnel. The equipment is professionally installed and configured for use. The installation guide includes technical configuration instructions that are carried out by trained personnel. Trained personnel properly install and configure the equipment to ensure regulatory compliant operation. The manual is only provided to the system operator, as commercial end users of the wireless service cannot service or configure the device. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, _____________________________ Christopher Moritz Sr. Director System Engineering Axxcelera Broadband Wireless, Inc. 1600 E. Parham Rd Richmond, VA 23228

1 1/13/2010 3 552295 D01 CBT Guidance for 3650 3700 Band v01r01 Guidance regarding contention based protocol for devices operating in the 3650-3700 MHz Band under Part 90Z Document Overview This document identifies several questions / information to help determine the contention based protocol capability of a device that may operate in the 3650 – 3700 MHz under part 90Z of our rules. These questions are intended to be used as a guide by the applicant to describe how their system meets the requirements for 3650-3700 contention based protocol. The list is not intended to be exhaustive and may be modified in the future. There may be follow-up questions based on the responses provide by the applicant for authorization. Applicants seeking certification for systems as complying with restricted contention based protocol (3650 to 3675 MHz) that permit operation on a co-channel with like systems (similar systems) may seek equipment authorization from a Telecommunications Certification Body (TCB) using the Permit but Ask procedure as described in Section 3 . Applicants seeking certification for systems as complying with the unrestricted contention based protocol for operation in the 3650 to 3700MHz band that permit operation on a co-channel with similar or different systems (recognizing other systems) must apply to the FCC for equipment authorization. 1 Restricted Certification under Part 90Z (3650-3675 Band) In order to ensure that a device complies with the requirements of restricted contention based protocol, the following information should be provided in the application. The equipment in question has already been awarded a grant of equipment authorization for restricted operation, thus no response is provided for this section. Refer to section 2 for unrestricted operational information. 1.1. Restricted Protocol Description 1.1.1. Although the restricted protocol does not have the extended requirement to recognize all other systems it is still mandatory to incorporate a contention based protocol that provides satisfactory sharing of spectrum with similar systems. 1.1.2. Address the key requirements for operation using restricted contention based protocol opportunities for other transmitters to operate. Please note that this requires recognizing like systems (similar to yours) that permit operation on a co-channel. 1.1.3. Provide any additional manuals and operational descriptions to allow the reviewer to understand the product and its operation. 2 1/13/2010 3 552295 D01 CBT Guidance for 3650 3700 Band v01r01 1.2 Describe the method to permit occupancy 1.3 Describe the action taken if two or more transmitters simultaneously access the same channel by the master and the client devices. 1.4 Describe opportunities for other similar systems to operate Address how or if a different system operator using the same technology can operate in the same band. 2 Unrestricted Certification under Part 90Z (3650-3700 Band) In order to ensure that a device complies with the requirements of unrestricted contention based protocol, the following information should be provided in the application. 2.1. Unrestricted Protocol Description Address the key requirements for operation using unrestricted contention based protocol. Please note that this requires recognizing other systems (both similar to yours and different from yours) that operate on a co-channel. Indicate the strategy for sharing the spectrum in terms of: Does the system use spectrum sensing to determine if the other devices are transmitting and then find ways to share the bandwidth, or have some other strategy? The access point (master device) employs a listen-before-talk mechanism to verify the absence of a co- channel signal before transmitting. The airlink is based on the WiMAX protocol and as such organizes the airlink in a TDD structure with a static frame length. The TDD frame is sub-divided into the downlink sub-frame and the uplink sub-frame. The downlink sub-frame contains the access point to client device traffic and leads the uplink sub-frame which contains the client to access point traffic. The access point acts as the master scheduler of all attached client devices and orchestrates the transmission opportunities for all attached client devices. The access point measures the ambient co-channel signal level at the beginning of each frame to determine if a competing transmitter is active. The access point organizes the transmission schedule of attached client devices to ensure that no transmissions occur during the channel activity sense interval positioned at the beginning of each frame. By scheduling a silent period during the channel activity sense interval, the access point ensures that any detection originates from competing equipment. If the channel activity measurement exceeds the busy channel threshold then the AP will allocate a contention interval in the sector to allow competing transmissions to complete. The busy channel threshold is user-configurable from -95 dBm to -45 dBm. Neither the access point nor the attached client devices will transmit during the contention interval. The duration of the contention interval is indefinite. The access point will continue to measure the channel activity level during the contention interval and will resume normal scheduling if the link is determined to be idle (i.e. channel activity level below busy channel threshold). The contention window will expire only if the contention window measurement results in an inactive channel. There will be no transmission as long as channel monitoring (in every frame) indicates an active channel. 3 1/13/2010 3 552295 D01 CBT Guidance for 3650 3700 Band v01r01 2.2. Threshold detection to determine occupancy 2.2.1. Describe how your system determines if another system is using the spectrum. At what detection level – relative to 0 dBi receive antenna gain (busy channel threshold) does the device determine if another system is operating on the spectrum? The busy cha…

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the wireless lab 6 October 2010 Axxcelera Broadband Wireless External Photographs EHD-CPE3320-C10 External Front View MiCOM Labs, 440 Boulder Court, Suite 200, Pleasanton, CA 94566 Tel: +1 (925) 462-0304, Fax: +1 (925) 462-0306, Web: www.micomlabs.com the wireless lab External side View Page 2 of 3 the wireless lab External Back View Page 3 of 3

3GHz ODU Antenna Specification Feature Item Description Frequency Band 3300MHz ~ 3800MHz Polarization V or H depending mounting Antenna pattern Directional Per ETSI EN302 326-3 DN2 Gain 16 dBi Degree 25Vertical 22 Horizontal Return loss Less than -10dB in 3300MHz ~ 3800MHz Number of antennas 1 Sample Azimuth pattern

MiCOM Labs, 440 Boulder Court, Suite 200, Pleasanton, CA 94566 Tel: +1 (925) 462-0304, Fax: +1 (925) 462-0306, Web: www.micomlabs.com the wireless lab Maximum Permissible Exposure FCC, Part 90 Subpart C §90.1217 Industry Canada RSS-Gen 5.5 Calculations for Maximum Permissible Exposure Levels Power Density = Pd (mW/cm 2 ) = EIRP/(4πd 2 ) EIRP = P * G P = Peak output power (mW) G = Antenna numeric gain (numeric) d = Separation distance (cm) Numeric Gain = 10 ^ (G (dBi)/10) The Axxcelera EHD-CPE3320-C10 has a single transmitter. The calculated safe distance is computed using; the highest conducted power measured (+25.35dBm) when used with the 11dBi antenna; the calculated maximum conducted power (+23.4dBm) that can be used with the 16dBi antenna to meet EIRP requirements. Because the EUT belongs to the General Population/Uncontrolled Exposure the limit of power density is 1.0 mW/cm 2 Freq. Band (GHz) Antenna Gain (dBi) Numeric Gain (numeric) Max Peak Output Power (dBm) Peak Output Power (mW) Calculated Safe Distance @ 1mW/cm 2 Limit(cm) Minimum Separation Distance (cm) 3650 11 12.6 +25.35 342.8 18.5 20.0* 3650 16 39.8 +23.40 218.8 26.3 20.0* *Note: for mobile or fixed location transmitters the minimum separation distance is 20cm, even if the calculations indicate the MPE distance to be lower. Specification Maximum Permissible Exposure Limits §90.1217 Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency levels in excess of the Commission’s guidelines. See §1.1307 (b)(1) of this chapter. Limit = 1mW / cm 2 from 1.310 Table 1 Note: for mobile or fixed location transmitters the minimum separation distance is 20cm, even if calculations indicate the MPE distance to be less.

COVER PAGE Test of Axxcelera EHD-CPE3320-C10 To: FCC Part 90 SubPart Z, RSS-197 Test Report Serial No.: AXXC15-U1 Rev A TEST REPORT FROM Test of Axxcelera EHD-CPE3320-C10 To FCC Part 90 SubPart Z, RSS-197 Test Report Serial No.: AXXC15-U1 Rev A This report supersedes NONE Manufacturer: Axxcelera Broadband Wireless, Inc 1600 E.Parham Road Richmond Virginia 23228 USA Product Function: Wireless Voice and Data Communication Copy No: pdf Issue Date: 5th October 2010 This Test Report is Issued Under the Authority o f; MiCOM Labs, Inc. 440 Boulder Cour t, Suite 200 Pleasanton, CA 94566 USA Phone: +1 (925) 462-0304 Fax: +1 (925) 462-0306 www.micomlabs.com TESTING CERTIFICATE #2381.01 MiCOM Labs is an ISO 17025 Accredited Testing Laboratory Title: Axxcelera EHD-CPE3320-C10 To: Serial #: Issue Date: Page: FCC Part 90 SubPart Z, RSS-197 A XXC15-U1 Rev A 5th October 2010 3 of 144 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs p ersonnel. Any changes will be noted in the Document History section of the report. MiCOM Labs Inc, 440 Boulder Court, Suite 200, Pleasanton, CA 94566 USA, Phone: 925.462.0304, Fax: 925.462.0306, www.micomlabs.com This page has been left intentionally blank Title: Axxcelera EHD-CPE3320-C10 To: Serial #: Issue Date: Page: FCC Part 90 SubPart Z, RSS-197 A XXC15-U1 Rev A 5th October 2010 4 of 144 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs p ersonnel. Any changes will be noted in the Document History section of the report. MiCOM Labs Inc, 440 Boulder Court, Suite 200, Pleasanton, CA 94566 USA, Phone: 925.462.0304, Fax: 925.462.0306, www.micomlabs.com TABLE OF CONTENTS ACCREDITATION, LISTINGS & RECOGNITION ..........................................................5 ACCREDITATION............................................................................................................ 5 LISTINGS......................................................................................................................... 6 RECOGNITION................................................................................................................ 6 1. TEST RESULT CERTIFICATE .................................................................................8 2. REFERENCES AND MEASUREMENT UNCERTAINTY ........................................9 2.1. Normative References ............................................................................................ 9 2.2. Test and Uncertainty Procedures ........................................................................... 9 3. PRODUCT DETAILS AND TEST CONFIGURATIONS ........................................10 3.1. Technical Details .................................................................................................. 10 3.2. Scope of Test Program ......................................................................................... 11 3.3. Equipment Model(s) and Serial Number(s) .......................................................... 15 3.4. Antenna Details .................................................................................................... 15 3.5. Cabling and I/O Ports ........................................................................................... 15 3.6. Test Configurations............................................................................................... 16 3.7. Equipment Modifications....................................................................................... 17 3.8. Deviations from the Test Standard ....................................................................... 17 3.9. Subcontracted Testing or Third Party Data .......................................................... 17 4. TEST SUMMARY ....................................................................................................18 5. TEST RESULTS ......................................................................................................19 5.1. Device Characteristics .......................................................................................... 19 5.1.1. Occupied Bandwidth ............................................................................. 19 5.1.2. Peak Output Power ............................................................................... 42 5.1.3. Power Spectral Density ......................................................................... 65 5.1.4. Maximum Permissible Exposure ........................................................... 88 5.1.5. Frequency Stability; Temperature Variations, and Voltage Variations .. 89 5.1.6. Spectrum Mask & Spurious Emissions at Antenna Terminal ................ 99 5.1.7. Radiated Spurious Emissions ............................................................. 119 5.1.8. AC Wireline Conducted Emissions (150 kHz – 30 MHz)..................... 134 6. TEST SET-UP PHOTOGRAPHS..........................................................................137 6.1. General Measurement Test Set-Up .................................................................... 137 6.2. Environmental Chamber ..................................................................................... 138 6.3. Radiated Spurious Emissions below 1GHz ........................................................ 139 6.4. Radiated Spurious Emissions above 1GHz ........................................................ 141 6.5. Conducted Emissions (150 kHz - 30 MHz) ......................................................... 142 7. TEST EQUIPMENT DETAILS...............................................................................143 Title: Axxcelera EHD-CPE3320-C10 To: Serial #: Issue Date: Page: FCC Part 90 SubPart Z, RSS-197 A XXC15-U1 Rev A 5th October 2010 5 of 144 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs p ersonnel. Any changes will be noted in the Document History section of the report. MiCOM Labs Inc, 440 Boulder Cou…

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the wireless lab 7 October 2010 Axxcelera Broadband Wireless Test Set Up Photographs EHD-CPE3320-C10 General Measurement Test Set-Up MiCOM Labs, 440 Boulder Court, Suite 200, Pleasanton, CA 94566 Tel: +1 (925) 462-0304, Fax: +1 (925) 462-0306, Web: www.micomlabs.com the wireless lab Environmental Chamber Page 2 of 5 the wireless lab Radiated Spurious Emissions below 1GHz Page 3 of 5 the wireless lab Radiated Spurious Emissions above 1GHz Page 4 of 5 the wireless lab Conducted Emissions (150 kHz - 30 MHz) Page 5 of 5