RHK-G3RL10Askey Atheros Radio, Relay

Digital Path Networks 275 Airpark Blvd Ste 500 Chico, Ca 95973 Phone: (800)676-PATH 12/10/2004 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Section 0.457(d)(2)(i) pertaining to confidential material. Digital Path Networks would like the following documents regarding this submission for FCC ID: RHK-G3RL10 and RHK-G3DL10 to be kept confidential. 1. MB31-245-01183-040_SCH.PDF (i.e., all schematics). 2. prelim_AR5004_STA_Reference_Guide.PDF (i.e., block diagrams). 3. RELAY_OPERATIONAL_MANUAL.doc (i.e. users manual ) 4. RELAY_INSTALLATION_MANUAL.doc (i.e. users manual ) The above material contains trade secrets or technical data, which would customarily be guarded from competitors. Since we do not sell our products to the general public, but only on a licensee basis, we would like our users manual to be confidential. We do not want these documents to be accessible to the general public. Sincerely, Brock Eastman, VP R&D

Digital Path Networks 275 Airpark Blvd Ste 500 Chico, Ca 95973 Phone: (800)676-PATH 12/10/2004 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Section 0.457(d)(2)(i) pertaining to confidential material. Digital Path Networks would like the following documents regarding this submission for FCC ID: RHK-G3RL10 and RHK-G3DL10 to be kept confidential. 1. MB31-245-01183-040_SCH.PDF (i.e., all schematics). 2. prelim_AR5004_STA_Reference_Guide.PDF (i.e., block diagrams). 3. RELAY_OPERATIONAL_MANUAL.doc (i.e. operational manual ) 4. RELAY_INSTALLATION_MANUAL.doc (i.e. users manual ) 5. Internal Photos 6. Operational Description. The above material contains trade secrets or technical data, which would customarily be guarded from competitors. Since we do not sell our products to the general public, but only on a licensee basis, we would like our users manual and operational manual including all internal photos to be confidential. We do not want these documents to be accessible to the general public. Sincerely, Brock Eastman, VP R&D

Read Me First – 82775 This submittal is for TCB/FCC only. It is for a composite device with two transmitters in the same enclosure. The exhibits have been put in the TCB folders.

TCB7 01/12/05 Page 1 of 4 General Agreement I, the undersigned, a representative of Digital Path Networks, Inc , having its registered offices at (address) 275 Airpark Blvd Ste 500 Chico, Ca 95973 , hereinafter referred to as the "Applicant", acting for and on behalf of the applicant accept the following terms as provided in this General Agreement. Applicant authorizes CKC Certification Services, having its registered offices at 4933 Sierra Pines Dr., Mariposa, CA 95338, hereinafter referred to as "CKC CS", to perform the required certification in compliance with the articles of this agreement and the current Federal Communications Commission (FCC) regulations. Article 1: Regulation for certification and inspection The Applicant agrees that the stipulations of Chapter 47 of the Code of Federal Regulations (CFR47) apply to this agreement. Article 2: Rights and obligations 2.1 Compliance. The Applicant agrees that the equipment, process or service certified shall comply with all the Federal Communications Commissions (FCC) technical and administrative requirements specified in Chapter 47 of the Code of Federal Regulations (CFR47). 2.2 Certificate. Applicant shall endeavor to ensure that no certificate or report or any part thereof is used in a misleading manner. Equipment shall be represented as certified only if it complies with the FCC regulations and is labeled as required by the FCC. The Applicant shall use certification only to indicate that products are certified in conformity with the specified FCC regulations. 2.3 Quality. The Applicant agrees that the certified products shall be produced to the same specifications. The Applicant further agrees to correct any deficiencies found in products or services that affect compliance with the relevant certification. 2.4 Audits. CKC CS may perform audits of Applicants equipment and documentation. Applicant shall make all necessary arrangements for the conduct of the audit and/or evaluation, including provision for examining documentation and access to records (including internal audit reports) and personnel for the purpose of evaluation (e. g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints. 2.5 Samples. Although CKC CS attempts to keep the need for samples to a minimum, the Applicant shall furnish, without charge, such samples of Equipment for examination and testing purposes as may be required from time to time by CK CS. Such samples will be returned at Applicants expense if requested by Applicant. CK CS shall not be responsible for the condition of such samples as such samples may be damaged or destroyed during testing. The Applicant shall make all necessary arrangements for the conduct of the evaluation and subsequent surveillance activities as necessary. In accordance with CFR 47, the Applicant agrees to provide products for CKC CS surveillance activities within 14 days of such request. Fees involved for evaluation and/or surveillance samples shall follow Article 3 of this agreement. Deleted: the Page 2 of 5 2.6 Publicity. CKC CS will permit the use of appropriate references to CKC CS, in advertising or promotional material solely in connection with the specific products that it has certified, provided that the reference to CKC CS in no way tends to create a misleading impression as to the nature of CKC CS's findings, coverage or service. Applicant will not use its product certification in such a manner as to bring CKC CS, the certification body, into disrepute and will not make any statement regarding its product certification that CKC CS may consider misleading or unauthorized. 2.7 Testing and Certification. The rights of CKC CS under this Agreement do not relieve Applicant of any part of its obligations under this Agreement. Applicant recognizes that the opinions and findings of CKC CS represent its judgment given with due consideration to the type of certification, the necessary practical limitations and in accordance with its objects and purposes. Applicant recognizes that many tests specified in the FCC requirements may be inherently hazardous and agrees that CKC CS neither assumes nor accepts any responsibility for any injury or damage to Applicants property or personnel that may occur during or as a result of tests, whether performed in whole or in part by Applicant or CKC CS, and whether or not any device, test equipment, facility or personnel for or in connection with the test is furnished by Applicant or CKC CS. 2.8 Confidentiality. CKC CS is responsible for seeing that confidentiality is maintained by its employees concerning all confidential information with which they become acquainted as a result of their contacts with the Applicant. Except as required by regulation or law, information gained by CKC CS in the course of certification activities about a particular product, shall not be disclosed to a third-party without the written consent of the Applicant. Where the law or regulation requires information to be disclosed to a third-party, the Applicant shall be informed of the information provided as permitted by the applicable regulation or law . (NOTE) The Applicant is hereby notified that for certification within the US, CKC CS, in accordance with 47CFR 2.962 and/or 47CFR 68.162 (as applicable), is obligated to upload all information and files to the FCC database. All information on the FCC database is public information. Exceptions to this are material that is classified as confidential. 47 CFR subpart 0.459 has designated what can be determined as confidential material. If the Applicant desires to have certain information held as confidential, it is the responsibility of the Applicant to so designate this confidential material. The FCC however, retains the right to accept or deny the request for confidentiality. 2.9 Complaints. Applicant shall keep a record of all complaints made known to the supplier relating to a product’s compliance with the requirements of the relevant stand…

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PC Engines PCB TX PCB Front TX PCB Front No Shield TX PCB Back Antenna 24 Omni Antenna 24 Directional Front Antenna 24 Directional Back Antenna 24 Directional Side Antenna 5 GHz Directional Front Antenna 5 GHz Directional Back Antenna 5 GHz Directional Side Relay Internal PCEngines Relay Internal Soekris Relay Soekris PCB

Digital Path Networks Gen3 Repeater Description Description: The DPN Gen 3 repeater functions as a wireless access point and relay point. It allows customers to connect directly to its omni-directional antenna while simultaneously providing a link to the main network backhaul. It connects to the customer premise equipment (CPE) on IEEE 802.11b/g frequencies and protocol. It connects to the main network backhaul through IEEE 802.11a frequencies and protocol. The antennas used are panel, dish, sector, or omni-directional. The ground for the system is referenced to earth from the 3 rd prong of the AC mains outlet. The Gen3 repeater is produced in a few different variants. The host processor board, radios, and antennas can be eliminated, exchanged, or configured to change the operating mode. The Gen3 repeater consists of 3 modules. The host processor board, the Mini- PCI radio card, and the antenna(s). Host Processor Board Digital Path uses a dual supply of host processor boards from two separate manufactures. Host Processor Board #1 PC Engines WRAP.1c Description WRAP is a small single board computer optimized for wireless access and network routing applications. · National SC1100 CPU, 266 MHz 5x86 CPU, 16KB cache · 2 Ethernet channels (National DP83816) · 2 mini-PCI sockets for 802.11 wireless cards and other expansion · 64 MB SDRAM, 64 bit wide for high memory bandwidth · 128 KB flash for tinyBIOS system BIOS. · 7 to 28V DC supply through DC jack or passive power over LAN 1 connector · 1 serial port (DB9 male) Block Diagram (PC Engines WRAP.1c) Host Processor Board #2 Soekris Net 4801 Description The net4801 is a small single board computer optimized for wireless access and network routing applications. National SC1100 CPU, 266 MHz 5x86 CPU, 16KB cache 3 10/100 Mbit Ethernet ports Up to 128 Mbyte SDRAM Compact Flash for Data storage Standard 3.3V PCI expansion slot Mini-PCI type III 3.3V expansions slot USB 1.1 interface 7 to 28V DC supply through DC jack mini-PCI mini-PCI DP8316 LAN 2 DP8316 LAN 1 SDRAM PC 133 64MB National SC1100 20V/18V Compact Flash 33V BIOS Flash 33V DC-DC Converter PCI bus 33MHz +3.3V I/O 7.. 28VDC 2.0V SC1100 core 27MHz 25MHz 802.11x 802.11x 10/100 Eth. 10/100 Eth. IDE DRAM CLK 100MHz Passive POE 7 .. 28VDC Block Diagram (Soekris net4801) Mini-PCI Radio Card The mini-PCI radio card is a complete 802.11a/b/g transmitter receiver with MAC / base band processor. It interfaces with the host processor board via the PCI bus. Digital Path uses radio cards based on two different reference designs from Atheros. • Atheros 5002x o 5112 Radio On a Chip (ROC) o 5212 MAC / base band processor • Atheros 5004x o 5112 (ROC) o 5213 MAC base band processor mini-PCI PCI DP8316 Eth0 DP8316 Eth1 DP8316 Eth2 SDRAM PC 133 128MB National SC1100 Compact Flash 3.3V BIOS Flash 3.3V DC-DC Converter PCI bus 33MHz +3.3V I/O 7 to 28VDC 2.0V SC1100 core 27MHz 25MHz 802.11x 802.11x 10/100 Eth. 10/100 Eth. 10/100 Eth. IDE DRAM CLK 100MHz Block Diagram (Atheros 5004x and 5002x chipset) See the Atheros PDF page 20, figure 1-3 Antenna Each repeater has a combination of 1 or 2 antenna(s) depending on the configuration and number of radio cards present. 2.4GHz Panel Superpass 14.2 dBi RF Technics 14.0 dBi Omni-directional Superpass 8.0 dBi RF Technics 9.0 dBi Sector (180 degrees) Superpass 9.1 dBi 5.3-5.8GHz Panel Superpass 18.0 dBi RF Technics 18.0 dBi Dish Andrews 29.2 dBi Pacific Wireless 26.0 dBi

Page 1 of 160 Report No.: FC04-082 DIGITAL PATH NETWORKS TEST REPORT FOR THE ASKEY ATHEROS RADIO, RELAY FCC PART 15 SUBPART C SECTIONS 15.207, 15.209, 15.247 & 15.407 AND SUBPART B SECTIONS 15.107 & 15.109, CLASS A COMPLIANCE DATE OF ISSUE: NOVEMBER 29, 2004 PREPARED FOR: Digital Path Networks 275 Air Park Blvd., Suite 500 Chico, CA 95973 PREPARED BY: Mary Ellen Clayton CKC Laboratories, Inc. 5473A Clouds Rest Mariposa, CA 95338 W.O. No.: 82775Date of test: November 8-22, 2004 Report No.: FC04-082 This report contains a total of 160 pages and may be reproduced in full only. Partial reproduction may only be done with the written consent of CKC Laboratories, Inc. The results in this report apply only to the items tested, as identified herein. Page 2 of 160 Report No.: FC04-082 TABLE OF CONTENTS Administrative Information .............................................................................................3 Summary of Results .........................................................................................................4 Conditions for Compliance ..............................................................................................4 Approvals .........................................................................................................................4 Equipment Under Test (EUT) Description ......................................................................5 Equipment Under Test .....................................................................................................5 Peripheral Devices ...........................................................................................................5 FCC 15.31(e) Voltage Variation......................................................................................6 FCC 15.31(m) Number Of Channels ...............................................................................6 FCC 15.33(a) Frequency Ranges Tested .........................................................................6 FCC 15.203 Antenna Requirements ................................................................................6 FCC 15.205 Restricted Bands..........................................................................................6 Eut Operating Frequency .................................................................................................6 FCC 15.107 – AC Conducted Emissions.........................................................................7 FCC 15.109 – Radiated Emissions ..................................................................................19 FCC 15.207 – AC Conducted Emissions.........................................................................39 FCC 15.247(c)/15.209/15.205 – Spurious Emissions......................................................45 FCC 15.247(a)(2) - 6dB Bandwidth 802.11b ..................................................................60 FCC 15.247(a)(2) - 26dB Bandwidth 802.11b ................................................................63 FCC 15.247(a)(2) - 6dB Bandwidth 802.11g ..................................................................66 FCC 15.247(a)(2) - 26dB Bandwidth 802.11g ................................................................69 FCC 15.247(a)(2) - 6dB Bandwidth 802.11a ..................................................................72 FCC 15.247(a)(2) - 26dB Bandwidth 802.11a ................................................................75 FCC 15.247(b)(1) – Peak Output Power .........................................................................78 FCC 15.247(c) - Bandedge Antenna Conducted Measurement 802.11b.........................83 FCC 15.247(c) - Bandedge Antenna Conducted Measurement 802.11g.........................85 FCC 15.247(c) - Bandedge Antenna Conducted Measurement 802.11a.........................87 FCC 15.247(c) – Antenna Conducted Spurious Emissions .............................................89 FCC 15.247(c) – Radiated Spurious Emissions - OATS .................................................108 FCC 15.247(d) – Peak Power Spectral Density...............................................................124 FCC 15.407(a)(2) – Peak Output Power..........................................................................135 FCC 15.407(a)(2) - 26dB Bandwidth ..............................................................................139 FCC 15.407(a)(5) – Peak Power Spectral Density ..........................................................142 FCC 15.407(a)(6) – Peak Excursion ................................................................................146 FCC 15.407(b)(1) & (2) – Undesirable Emissions ..........................................................150 FCC 15.407(b)(1) & (2) - Radiated Emissions ................................................................152 Appendix A: Test Setup Photographs..............................................................................155 Photograph Showing Mains Conducted Emissions .............................................156 Photograph Showing Radiated Emissions ...........................................................157 Photograph Showing Radiated Emissions ...........................................................158 Photograph Showing Radiated Emissions ...........................................................159 Photograph Showing Direct Connect Test Setup.................................................160 Page 3 of 160 Report No.: FC04-082 ADMINISTRATIVE INFORMATION DATE OF TEST: November 8-22, 2004 DATE OF RECEIPT: November 8, 2004 PURPOSE OF TEST: To demonstrate the compliance of the Askey Atheros Radio, Relay with the requirements for FCC Part 15 Subpart C Sections 15.207, 15.209, 15.247 & 15.407 and Subpart B Sections 15.107 & 15.109 Class A devices. TEST METHOD: ANSI C63.4 (2001) FREQUENCY RANGE TESTED: 30 MHz-40 GHz MANUFACTURER: Digital Path Networks 275 Air Park Blvd., Suite 500 Chico, CA 95973 REPRESENTATIVE: Brock Eastman TEST LOC…

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Digital Path Networks 275 Airpark Blvd Ste 500 Chico, Ca 95973 Phone: (800)676-PATH 12/10/2004 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Section 15.203 for Professional Installation. Intended Use Digital Path Networks uses this product in an outdoor environment as a last mile wireless internet access product which is installed by trained technicians. Method of marketing Digital Path Networks utilizes the product on both a retail and wholesale basis to provide last mile internet access to local and national ISP’s. Sincerely, Brock Eastman, VP R&D

Page 1 of 5 Report No.: FC04-082 PHOTOGRAPH SHOWING MAINS CONDUCTED EMISSIONS Mains Conducted Emissions Page 2 of 5 Report No.: FC04-082 PHOTOGRAPH SHOWING RADIATED EMISSIONS Radiated Emissions Page 3 of 5 Report No.: FC04-082 PHOTOGRAPH SHOWING RADIATED EMISSIONS Configuration 1 Page 4 of 5 Report No.: FC04-082 PHOTOGRAPH SHOWING RADIATED EMISSIONS Configuration 2 Page 5 of 5 Report No.: FC04-082 PHOTOGRAPH SHOWING DIRECT CONNECT TEST SETUP