RHK-G3CPE100Generation 3 Customer Premise Equipment

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) and 0.429 CFR 47 pertaining to confidential material. Digital Path Networks would like the following documents regarding this submission for FCC ID: RHK-G3CPE100 to be kept confidential. 1. Schematics 2. Block Diagrams 3. Users Manual The above material contains trade secrets or technical data, which would customarily be guarded from competitors. We only sell these units to licensees and wholesalers of our technology. We do not want these documents to be accessible to the general public. End-users of the system do not have specific control over the device; this is why we would like to keep the users manual confidential. Sincerely, Brock Eastman, VP R&D Digital Path Networks, Inc.

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 uses this product in an outdoor environment as a last mile wireless internet access product which is installed by trained technicians. The antenna is directly soldered onto the PCB without any connectors all housed within a water- proof enclosure. Method of marketing Digital Path utilizes the product on both a retail (end-user of Digital Path) and wholesale basis (Licensees or Wholesale Partners) to provide last mile internet access to local and national ISP’s. Sincerely, Brock Eastman, VP R&D Digital Path, Inc

Response to E05-000053-1 1. Files have been uploaded to address the accreditiation issue. 2. A revised confidentiality letter have been uploaded. 3. That was my mistake. Please just use the range for the 731 form. 4. The customer states this information was provided to Randy a few weeks ago. 5. DigitalPath sells the equipment through a wholesale relationships that have professional installers such as partnering ISP’s over our network and licensee’s of the technology whom also employ professional installers. DigitalPath is a retail ISP itself, that was what I meant by a retail basis. The equipment is not meant for inside the home but only on the rooftop.

Front Back Top Bottom Left Right

Internal Photos Assembled PCB w/ direct solder to Antenna Top View Assembled PCB w/ direct solder to Antenna Side view PCB Front PCB Front Side Photo PCB back Antenna 1 Omni Antenna 2 Directional Front Antenna 2 directional back Antenna 2 directional side

Digital Path Networks 275 Airpark Blvd Ste 500 Chico, Ca 95973 Phone: (800)676-PATH Operational Description Date: 2/17/2005 FCC ID: G3CPE100 The EUT is a wireless broadband router designed for use in Digital Path’s proprietary and patented wireless network. The device provided does comply with the 802.11 specifications for both 802.11b and 802.11g modes and operates within the 2.4GHz band with center frequencies between 2412MHz and 2462MHz . The device is capable of transmitting at 1,2,5.5,11Mbps in 802.11b mode. The device is also capable of transmitting up to 54Mbps in 802.11g mode using QAM and down to 6mbps using BPSK. The device is capable of using 64/128bit encryption. The antenna provided with the unit is directly soldered to the PCB. The entire antenna and PCB are housed within a water-tight enclosure and power-over Ethernet is used to power and transfer data from the device from a AC-DC converter wall-plug and a crossover Ethernet cable. The software residing on this device is proprietary and covered within USPTO patent number 6,831,921. Sincerely, Brock Eastman VP Research and Development .

Ecom Sertech Corp. Rm. 258, Bldg. 17, NO.195, Sec. 4 Chung Hsing Rd.,Chu -Tung Chen, Hsinchu, Taiwan 310, R.O.C TEL:886 - 3 - 5918012 FAX : 886 - 3 - 5825720 FCC ID ：RHK-G3CPE100 Report No.：ER04-04-057FRF Page 1 of 86 TEST REPORT Product Name ： 3rd Generation Customer Premise Equipment Model Number ： Gen3-CPE Brand Name ： Digital Path Networks FCC ID ： RHK-G3CPE100 Applicant ： Digital Path Networks Address ： 275 Airpark Boulevard, Suite 500 Chico, CA 95973 USA Received Date ： April 21, 2004 Tested Date ： April 21 ~ September 14, 2004 Notes ： 1. This report will be invalid if duplicated or photocopied in part. 2. This report refers only to the specimen(s) submitted to testing, and be invalid as separately used. 3. This report is invalid without examination stamp and signature of this institute. 4. The tested specimen(s) will be preserved for thirty days from the data issued. 5. The report must not be used to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. Ecom Sertech Corp. Rm. 258, Bldg. 17, NO.195, Sec. 4 Chung Hsing Rd.,Chu -Tung Chen, Hsinchu, Taiwan 310, R.O.C TEL:886 - 3 - 5918012 FAX : 886 - 3 - 5825720 FCC ID ：RHK-G3CPE100 Report No.：ER04-04-057FRF Page 2 of 86 Test Report Certification Product Name ： 3rd Generation Customer Premise Equipment Model Number ： Gen3-CPE Brand Name ： Digital Path Networks FCC ID ： RHK-G3CPE100 Applicant ： Digital Path Networks . Measurement Standard : FCC 47 C.F.R. Part 15, Subpart B and Subpart C (2003) ANSI C63.4 (2001) WE HEREBY CERTIFY THAT: The measurements shown in the attachment were made in accordance with the procedures indicated, and the energy emitted by the equipment was found to be within the limits applicable. We assume full responsibility for the accuracy and completeness of these measurements and vouch for the qualifications of all persons taking them. Ecom Sertech Corp. Rm. 258, Bldg. 17, NO.195, Sec. 4 Chung Hsing Rd.,Chu -Tung Chen, Hsinchu, Taiwan 310, R.O.C TEL:886 - 3 - 5918012 FAX : 886 - 3 - 5825720 FCC ID ：RHK-G3CPE100 Report No.：ER04-04-057FRF Page 3 of 86 TABLE OF CONTENTS TITLE PAGE NO. 1. GENERAL INFORMATION ........................................................................................... 5 1.1 General Statement ..................................................................................................................... 5 1.2 General Description of EUT & Power ...................................................................................... 5 1.3 Description of Peripherals......................................................................................................... 6 1.4 EUT & Peripherals Setup Diagram........................................................................................... 7 1.5 EUT Operating Procedure......................................................................................................... 8 1.6 Description of Laboratory ......................................................................................................... 8 1.7 Summary of Test Results .......................................................................................................... 9 2. CONDUCTED POWERLINE TEST............................................................................... 10 2.1 Test Equipments........................................................................................................................ 10 2.2 Test Setup.................................................................................................................................. 10 2.3 Conducted Power Line Emission Limit .................................................................................... 11 2.4 Test Procedure........................................................................................................................... 11 2.5 Uncertainty of Conducted Emission ......................................................................................... 11 2.6 Conducted RF Voltage Measurement ....................................................................................... 12-19 2.7 Photos of Conduction Test ........................................................................................................ 20-21 3. RADIATED EMISSION TEST ........................................................................................ 22 3.1 Test Equipments........................................................................................................................ 22 3.2 Test Setup.................................................................................................................................. 22 3.3 Radiation Limit ......................................................................................................................... 23 3.4 Test Procedures ......................................................................................................................... 24 3.5 Uncertainty of Radiated Emission ............................................................................................24 3.6 Radiated RF Noise Measurement..............................................................................................25-62 3.7 Photos of Open Site................................................................................................................... 63-66 4. 6dB BANDWIDTH MEASUREMENT ........................................................................... 67 4.1 Test Equipments........................................................................................................................ 67 4.2 Test Setup.................................................................................................................................. 67 4.3 Limits of 6dB Bandwidth Measurement ................................................................................... 67 4.4 Test Procedure.........................................................…

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Test Setup Photos Antenna 1 Photograph showing mains conducted emissions Photograph showing radiated emissions Antenna 2 Photograph showing radiated emissions Photograph showing mains conducted emissions