B46CH4390RF MODULE FOR THE RETREIVEAL OF SENSOR DATA

FCC Confidential Authorization June 28, 2011 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: B46- CH4390 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Cermetek Microelectronics Inc. hereby requests long-term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics • Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Steve Clary Marketing Manager Cermetek Microelectronics, Inc 374 Turquoise Street Milpitas, CA 95035 Phone: 408-942-2210 Fax: 408-942-1346 Email: [email protected]

Modular Approval Letter June 28, 2011 The Device, FCC ID: B46-CH4390, is seeking FCC authorization as a modular transmitter. This transceiver is a complete RF module with an integral oscillator. External connections are provided for power, communications and the antenna. The EUT meets the requirement for modular approval as detailed in FCC Public Notice DA 00-1407. Compliance to each of the requirements is described below: 1. The CH43090 includes RF shielding. 2. All inputs to the CH4390 are processed by the on-board micro controller. There is no external control of the modulation. 3. The module does not include a hardware voltage regulator; however, the on-board microcontroller constantly monitors the supply voltage. If the supply voltage goes outside the specified range, the micro-controller will shut down the transmitter. When operated within the specified voltage range, this module operates within all limits set forth in FCC Part 15. 4. The CH4390 uses a μ.FL connector and special cable to connect the Temple Star C-522 Antenna to the CH4390. This prevents the use of antenna other than the type specified. This is in accordance with Part 15.203. 5. The modular transmitter was tested in a stand-alone configuration. 6. Each module will include an FCC ID label affixed at the time of manufacture. The User Guide clearly states the labeling guidelines for the final assembly. 7. This module is compliant with Part 15.247. Installation and other requirements as presented in the user guide permit the user to be installed and operated correctly. 8. The CH4390 complies with any applicable RF exposure requirements. Sincerely, Steve Clary Marketing Manager Cermetek Microelectronics, Inc 374 Turquoise Street Milpitas, CA 95035 Phone: 408-942-2210 Fax: 408-942-1346 Email: [email protected]

Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 49 of 52 FCC Part 15.247 Test Report 17 Exhibit C - EUT Photographs 17.1 EUT Front View (with and without Shielding) 17.2 EUT without Shielding (Top and Bottom) View Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 50 of 52 FCC Part 15.247 Test Report 17.3 EUT on Supporting Board – Top View 17.4 Supporting Board - Bottom View Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 51 of 52 FCC Part 15.247 Test Report 17.5 Antenna View 17.6 AC/DC Power Supply View

Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 44 of 52 FCC Part 15.247 Test Report 15 Exhibit A - FCC Equipment Labeling Requirements 15.1 FCC ID Label Requirements As per FCC §2.925, (a) Each equipment covered in an application for equipment authorization shall bear a nameplate or label listing the following: (1) FCC Identifier consisting of the two elements in the exact order specified in §2.926. The FCC Identifier shall be preceded by the term FCC ID in capital letters on a single line, and shall be of a type size large enough to be legible without the aid of magnification. Example: FCC ID XXX123 Where: XXX—Grantee Code, 123—Equipment Product Code As per FCC §15.19, (a) In addition to the requirements in part 2 of this chapter, a device subject to certification, or verification shall be labeled as follows: (3) All other devices shall bear the following statement in a conspicuous location on the device: 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. (4) Where a device is constructed in two or more sections connected by wires and marketed together, the statement specified above is required to be affixed only to the main control unit. If the EUT is integrated within another device then a label affixed to the host shall also state, “Contains FCC ID: XXXXXX” (5) When the device is so small or for such use that it is not practicable to place the statement specified under paragraph (a) of this section on it, the information required by this paragraph shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. However, the FCC identifier or the unique identifier, as appropriate, must be displayed on the device. 15.2 FCC ID Label Contents Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 45 of 52 FCC Part 15.247 Test Report 15.3 FCC ID Label Location Label here

Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 52 of 52 FCC Part 15.247 Test Report 17.7 EUT without Shielding View ***** End of Report *****

Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 9 of 52 FCC Part 15.247 Test Report 4 FCC §15.247 (i) & §2.1091 - RF Exposure Information 4.1 Applicable Standards According to FCC §15.247(i) and §1.1307(b)(1), 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 energy level in excess of the Commission’s guidelines. Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 30 1.34-30 824/f 2.19/f *(180/f 2 ) 30 30-300 27.5 0.073 0.2 30 300-1500 / / f/1500 30 1500-100,000 / / 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density 4.2 MPE Prediction Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 S = PG/4πR² Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna 4.3 MPE Results Maximum peak output power at antenna input terminal (dBm):24.91 Maximum peak output power at antenna input terminal (mW): 309.74 Prediction distance (cm): 20 Prediction frequency (MHz): 927.59 Maximum Antenna Gain, typical (dBi): 0 Maximum Antenna Gain (numeric): 1 Power density of prediction frequency at 20 cm (mW/cm 2 ): 0.062 MPE limit for uncontrolled exposure at prediction frequency (mW/cm 2 ): 0.62 The device meets FCC MPE limit for uncontrolled exposure. The maximum power density at the distance of 20 cm is 0.062 mW/cm 2 , limit is 0.62 mW/cm 2 .

Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP*, NIST, or any agency of the Federal Government. * This report may contain data that are not covered by the NVLAP accreditation and are marked with an asterisk “*” (Rev.2) FCC PART 15.247 TEST AND MEASUREMENT REPORT For Cermetek Microelectronics, Inc. 374 Turquoise Street, Milpitas, CA 95035, USA FCC ID: B46-CH4390 Model: CH4390 Report Type: Original Report Product Type: 900 MHz Embedded Wireless Sensor Module Test Engineers: Quinn Jiang Report Number: R1107052-247 Report Date: 2011-08-04 Reviewed By: Victor Zhang EMC/RF Lead Prepared By: (91) Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue, Sunnyvale, CA 94089, USA Tel: (408) 732-9162 Fax: (408) 732-9164 Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 2 of 52 FCC Part 15.247 Test Report TABLE OF CONTENTS 1 General Description ..................................................................................................................................................... 5 1.1 Product Description for Equipment Under Test (EUT) ....................................................................................... 5 1.2 Mechanical Description of EUT .......................................................................................................................... 5 1.3 Objective.............................................................................................................................................................. 5 1.4 Related Submittal(s)/Grant(s) .............................................................................................................................. 5 1.5 Test Methodology................................................................................................................................................ 5 1.6 Measurement Uncertainty.................................................................................................................................... 5 1.7 Test Facility......................................................................................................................................................... 6 2 System Test Configuration.......................................................................................................................................... 7 2.1 Justification.......................................................................................................................................................... 7 2.2 EUT Exercise Software ....................................................................................................................................... 7 2.3 Equipment Modifications .................................................................................................................................... 7 2.4 Special Accessories ............................................................................................................................................. 7 2.5 Local Support Equipment .................................................................................................................................... 7 2.6 EUT Internal Configuration Details .................................................................................................................... 7 2.7 Interface Ports and Cabling ................................................................................................................................. 7 3 Summary of Test Results............................................................................................................................................. 8 4 FCC §15.247 (i) & §2.1091 - RF Exposure Information ........................................................................................... 9 4.1 Applicable Standards ........................................................................................................................................... 9 4.2 MPE Prediction.................................................................................................................................................... 9 4.3 MPE Results ........................................................................................................................................................ 9 5 FCC §15.203 – Antenna Requirements ...................................................................................................................... 10 5.1 Applicable Standard .......................................................................................................................................... 10 5.2 Antenna Connector Construction....................................................................................................................... 10 6 FCC §15.207 – AC Line Conducted Emissions ......................................................................................................... 11 6.1 Applicable Standard .......................................................................................................................................... 11 6.2 Test Setup .......................................................................................................................................................... 11 6.3 Test Equipment List and Details........................................................................................................................ 11 6.4 Test Setup Block Diagram................................................................................................................................. 12 6.5 Test Procedure ..................................................................................…

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Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 46 of 52 FCC Part 15.247 Test Report 16 Exhibit B - Test Setup Photographs 16.1 Radiated Emission below 1 GHz Front View @ 3 Meter 16.2 Radiated Emission below 1 GHz Rear View @ 3 Meter Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 47 of 52 FCC Part 15.247 Test Report 16.3 Radiated Emission above 1 GHz Front View @ 3 Meter 16.4 Radiated Emission above 1 GHz Rear View @ 3 Meter Cermetek Microelectronics, Inc. FCC ID: B46-CH4390 Report Number: R1107052-247 Page 48 of 52 FCC Part 15.247 Test Report 16.5 AC Line Conducted Emissions - Front View 16.6 AC Line Conducted Emissions - Side View