U3R-5252Radio Enabled Electricity Meter

6RT144 01 12 Jun 2007Page 1 of 3 6RT144 01 12 Jun 2007Page 2 of 3 6RT144 01 12 Jun 2007Page 3 of 3

COMMERCIAL IN CONFIDENCE 6RT128 01 11 Jun 2007Page 1 of 2 Subject: Base Station Radio and Outstation RF Radiation Exposure Levels Date: 11 Jun 2007 Document ref: 6RT128 01 1 Summary This document outlines RF radiation exposure level calculations for the AMPY base station radio and outstation. Levels are specified as a power density. Limits are those defined in FCC § 1.1310 Radiofrequency radiation exposure limits. In summary, for both the base station radio and the outstation, the RF radiation exposure levels at a distance of 20 cm are below the specified FCC limits. 2 FCC § 1.1310 Limits 2.1 Limits for Occupational/Controlled Exposures This is appropriate for the base station radio since it is deployed by trained personnel in areas that the general public do not have access to. Limit: 300 lim f PD= mW/cm 2 , where f is the frequency in MHz. At 902 MHz, the limit is 3.007 mW/cm 2 . 2.2 Limits for General Population/Uncontrolled Exposure This is appropriate for the outstation since it is typically deployed on the side of residential property. Limit: 1500 lim f PD= mW/cm 2 , where f is the frequency in MHz. At 902 MHz, the limit is 0.601 mW/cm 2 . COMMERCIAL IN CONFIDENCE 6RT128 01 11 Jun 2007Page 2 of 2 3 RF Radiated Exposure Calculations 3.1 Power Density Expression The power density, PD, at a range R from the transmitter with an effective isotropic radiated power EIRP, is given by: 2 4R EIRP PD π =. To calculate the closest range at which the power density reaches the FCC limits, the following expression is used. lim 4PD EIRP R π = . 3.2 Base Station Radio 3.2.1 Power Density at 20 cm A worst case EIRP of 4 W is assumed for the base station radio. At 20 cm, the power density is 0.796 mW/cm 2 , which is below the FCC limit of 3.007 mW/cm 2 . 3.2.2 Closest Range Assuming a worst case EIRP of 4 W, the power density meets the FCC limit at a range of 10.3 cm. 3.3 Outstation 3.3.1 Power Density at 20 cm A worst case EIRP of 100 mW is assumed for the outstation. At 20 cm, the power density is 0.020 mW/cm 2 , which is below the FCC limit of 0.601 mW/cm 2 . 3.3.2 Closest Range Assuming a worst case EIRP of 100 mW, the power density meets the FCC limit at a range of 3.6 cm.

TEST REPORT FROM RFI GLOBAL SERVICES LTD Test of: Ampy Metering Ltd Remote Metering Telemetry System - Outstation To: FCC Part 15.249: 2006 Test Report Serial No: RFI/RPTE3/RP48972JD03B Supersedes Test Report Serial No: RFI/RPTE2/RP48972JD03B This Test Report Is Issued Under The Authority Of Michael Derby, Wireless Radio Performance Group Leader: Tested By: Ian Watch Checked By: Michael Derby Report Copy No: PDF01 Issue Date: 03 July 2007 Test Dates: 15 March 2007 to 25 April 2007 This report is issued in Adobe Acrobat portable document format (PDF). It is only a valid copy of the report if it is being viewed in PDF format with the following security options not allowed: Changing the document, Selecting text and graphics, Adding or changing notes and form fields. Furthermore, the date of creation must match the issue date stated above. This report may be copied in full. The results in this report apply only to the sample(s) tested. RFI GLOBAL SERVICES LTD TEST REPORT S.No. RFI/RPTE3/RP48972JD03B Page: 2 of 42 Issue Date: 03 July 2007 Test of: Ampy Metering Ltd Remote Metering Telemetry System - Outstation To: FCC Part 15.249: 2006 This page has been left intentionally blank. RFI GLOBAL SERVICES LTD TEST REPORT S.No. RFI/RPTE3/RP48972JD03B Page: 3 of 42 Issue Date: 03 July 2007 Test of: Ampy Metering Ltd Remote Metering Telemetry System - Outstation To: FCC Part 15.249: 2006 Table of Contents 1. Client Information............................................................................................................................ 4 2. Equipment Under Test (EUT)......................................................................................................... 5 3. Test Specification, Methods and Procedures............................................................................. 12 4. Deviations from the Test Specification....................................................................................... 13 5. Operation of the EUT During Testing.......................................................................................... 14 6. Summary of Test Results............................................................................................................. 15 7. Measurements, Examinations and Derived Results.................................................................. 16 8. Measurement Methods................................................................................................................. 32 9. Measurement Uncertainty............................................................................................................ 35 Appendix 1. Test Equipment Used.................................................................................................. 36 Appendix 2. Test Configuration Drawings...................................................................................... 38 Appendix 3. Declaration from Customer......................................................................................... 41 RFI GLOBAL SERVICES LTD TEST REPORT S.No. RFI/RPTE3/RP48972JD03B Page: 4 of 42 Issue Date: 03 July 2007 Test of: Ampy Metering Ltd Remote Metering Telemetry System - Outstation To: FCC Part 15.249: 2006 1. Client Information Company Name: Ampy Metering Ltd Address: Spalding Road Frognall Deeping St. James Peterborough PE6 8SE UK Contact Name: Mr D Coley RFI GLOBAL SERVICES LTD TEST REPORT S.No. RFI/RPTE3/RP48972JD03B Page: 5 of 42 Issue Date: 03 July 2007 Test of: Ampy Metering Ltd Remote Metering Telemetry System - Outstation To: FCC Part 15.249: 2006 2. Equipment Under Test (EUT) The following information (with the exception of the Date of Receipt) has been supplied by the client: 2.1. Identification of Equipment Under Test (EUT) Description: Electricity Meter Brand Name: Ampy Model Name or Number: ANSI Radio Based 2-Way Communicating Smart Meter Serial Number: 6R534 Hardware Version: 5252A-04 Software Version: 5252.A.00.02.01 FCC ID Number: U3R-5252 Country of Manufacture: UK Date of Receipt: 15 March 2007 Description: Radio Module - Constant Tx, High Power, Bottom Channel. Brand Name: Plextek Model Name or Number: 6RP1CD05 Serial Number: A1402070119 Hardware Version: 6RP1B109 Software Version: F.001 Country of Manufacture: China Date of Receipt: 15 March 2007 Description: Radio Module - Constant Tx, High Power, Middle Channel. Brand Name: Plextek Model Name or Number: 6RP1CD05 Serial Number: A1402070130 Hardware Version: 6RP1B109 Software Version: F.012 Country of Manufacture: China Date of Receipt: 15 March 2007 RFI GLOBAL SERVICES LTD TEST REPORT S.No. RFI/RPTE3/RP48972JD03B Page: 6 of 42 Issue Date: 03 July 2007 Test of: Ampy Metering Ltd Remote Metering Telemetry System - Outstation To: FCC Part 15.249: 2006 Identification of Equipment Under Test (EUT) (Continued) Description: Radio Module - Constant Tx, High Power, Top Channel. Brand Name: Plextek Model Name or Number: 6RP1CD05 Serial Number: A1402070129 Hardware Version: 6RP1B109 Software Version: F.013 Country of Manufacture: China Date of Receipt: 15 March 2007 Description: Radio Module – Non Hopping, Bottom Channel, Bursting Brand Name: Plextek Model Name or Number: 6RP1CD05 Serial Number: A1601070036 Hardware Version: 6RP1B109 Software Version: F.003 Country of Manufacture: China Date of Receipt: 15 March 2007 Description: Radio Module – Non Hopping, Mid Channel, Bursting Brand Name: Plextek Model Name or Number: 6RP1CD05 Serial Number: A1601070050 Hardware Version: 6RP1B109 Software Version: F.004 Country of Manufacture: China Date of Receipt: 15 March 2007 RFI GLOBAL SERVICES LTD TEST REPORT S.No. RFI/RPTE3/RP48972JD03B Page: 7 of 42 Issue Date: 03 July 2007 Test of: Ampy Metering Ltd Remote Metering Telemetry System - Outstation To: FCC Part 15.249: 2006 Identification of Equipment Under Test (EUT) (Continued) Description: Radio Module – Non Hopping, Top Channel, Bursting Brand Name: Plextek Model Name or Number: 6RP1CD05 Serial Number: A1402070114 Hardware Versi…

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