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FCC ID: EO940GN-1

Test Report

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FCC ID: EO940GN-1 TEST REPORT Equipment Tested: Utility Meter Transceiver Model 40WN Serial Number 86 Itron Test Facility 2401 North State Street Waseca, Minnesota 56093 Report # W990617 Page 1 of 16

FCC ID: EO940GN-1 TABLE OF CONTENTS 1. TEST SUMMARY ..............................................................................................................................................................................3 2. PRODUCT DESCRIPTION AND TEST OBJECTIVE ..................................................................................................................4 3. TEST FACILITY ................................................................................................................................................................................4 4. EUT SUPPORT EQUIPMENT USED ..............................................................................................................................................4 5. EUT SYSTEM DESCRIPTION.........................................................................................................................................................4 6. OPERATING MODE OF EUT, SOFTWARE/FIRMWARE ETC ................................................................................................5 7. TEST SETUP DIAGRAM ..................................................................................................................................................................6 8. TEST AND MEASUREMENT EQUIPMENT DETAIL.................................................................................................................7 9. AMBIENT CONDITIONS DURING TEST .....................................................................................................................................7 10. DISTRIBUTION LIST .....................................................................................................................................................................7 11. REFERENCES ..................................................................................................................................................................................7 12. DESCRIPTION OF TEST PROCEDURE......................................................................................................................................8 RADIATED EMISSIONS ...........................................................................................................................................................................8 13 RESULTS............................................................................................................................................................................................8 TRANSMITTER RADIATED EMISSIONS ..................................................................................................................................................9 RECEIVER RADIATED EMISSIONS ......................................................................................................................................................10 ATTACHMENT A ...........................................................................................................................................................................11, 12 RADIATED EMISSIONS-TRANSMITTER ...............................................................................................................................................11 RADIATED EMISSIONS- RECEIVER .....................................................................................................................................................12 ATTACHMENT B .................................................................................................................................................................................13 CONVERSION FROM INSTANTANEOUS PEAK POWER TO AVERAGE POWER .....................................................................................13 ATTACHMENT C .................................................................................................................................................................................14 PART 15.231(C) BANDWIDTH PLOT ..................................................................................................................................................14 ATTACHMENT D .................................................................................................................................................................................15 PART 15.31(M) MEASUREMENT OF RELATIVE FIELD INTENSITY ...................................................................................................15 ATTACHMENT E .................................................................................................................................................................................16 PHOTOGRAPH (TEST SETUP) ..............................................................................................................................................................16 Report # W990617 Page 2 of 16

FCC ID: EO940GN-1 1. TEST SUMMARY Test Report No.: W990617 Company: Itron, Inc. Requester: Klaus Bender Phone: (509) 891-3323 Test Date(s): June 14 - 17, 1999 Equipment Under Test: Utility Meter Transceiver General Test Summary: The 40WN ERT® transmitter was tested for compliance to FCC Part 15.249 requirements for an intentional radiator. The receiver was tested for compliance to FCC Part 15.109. Original Grant or Permissive Change: Class II Permissive Change Certification Status: The 40WN ERT transmitter has been verified as being compliant with the FCC Part 15.249 requirements for an intentional radiator. The receiver has been verified as being compliant with the FCC Part 15.109 requirements for receivers. Modifications Necessary for Compliance: None. See Section 2. For EUT description. Tested By: Robert A. Sleen Report Written By: Robert A. Sleen Report # W990617 Page 3 of 16

FCC ID: EO940GN-1 2. PRODUCT DESCRIPTION AND TEST OBJECTIVE The EUT is an utility meter transceiver and is used in conjunction with a host meter to measure water consumption. The EUT transmits consumption data if the receiver detects a wake-up tone. (See Sections 6 and 7 for test set-up description). The 40WN ERT® has a wide band receiver centered at 955 MHz. The actual fundamental receiver frequency is set at the time of manufacture. The unit also has a frequency-hopping transmitter that operates over a maximum 6 MHz bandwidth in the 910-920 MHz band (the actual fundamental frequency is set at the time of manufacture). The objective of this test is to determine if the EUT transmitter meets the radiated emission levels established by FCC Part 15.249 for intentional radiators and to determine if the EUT receiver meets the radiated emission levels established by FCC Part 15.109 for unintentional radiators. The EUT was tested at an antenna to EUT horizontal distance of 3 meters according to ANSI C63.4-1992. 3. TEST FACILITY The tests were performed at the test facility of Itron, Inc. located at 2401 North State Street, Waseca, Minnesota 56093. This site is fully described in a document submitted to the FCC and accepted in a letter dated June 12, 1996 (Ref.: 31040/SIT 1300F2). 4. EUT SUPPORT EQUIPMENT USED: Test Equipment Model Manufacturer Serial. No. Radiated or Cal. Conducted Due EMI RF Signal Generator 8656A Hewlett 2341A05541 R&C N/A Packard Function Generator 171 Wavetek M6230187 R&C N/A Double Ridged Guide 3115 EMCO 9205-3878 R&C N/A Antenna 5. EUT SYSTEM DESCRIPTION: The EUT was physically configured similar to a typical user configuration. The EUT was placed in the center of the test table 80 cm above the ground plane. There were no associated components or accessories on the table during the radiated emissions tests. Report # W990617 Page 4 of 16

FCC ID: EO940GN-1 6. OPERATING MODE OF EUT, SOFTWARE/FIRMWARE ETC. : The EUT was operationally configured to a special test mode. This special test mode causes the ERT® to transmit consecutive messages, thus allowing peaks of transmitter radiation to be more easily found as antenna heights and turntable azimuth are varied. The hopping bandwidth of the transmitter is in the range of 1.5 to 6.0 MHz including manufacturing and component variability. See Attachment B for message detail. The receiver was under normal operation (a 0.25 usec. maximum wide on-time pulse occurring at a 512 Hz rate). See the test set-up diagram in Section 7 and the photograph in Attachment E. Report # W990617 Page 5 of 16

FCC ID: EO940GN-1 7. TEST SET-UP DIAGRAM: EUT 3 M. Mast Styrofoam Block 80 cm Roberts Dipole, Bi - conical, and Log Periodic antennae below 1 GHz. Double Ridged Guide antenna above 1 GHz. [1] HP 8656A RF Sig. Gen. Wavetek Model 171 32.5 Hz. Power Supply Spectrum [2] Analyzer [1] W ake up = 952 MHz. Mod. by 32.5 Hz. @ 95 % AM [2] Indicates a change in [2] connection, not an actual Sweep switch. 10 dB 40 dB Generator Coax Reference Level Set Power Meter Report # W990617 Page 6 of 16

FCC ID: EO940GN-1 8. TEST AND MEASUREMENT EQUIPMENT DETAIL: Test Equipment Model Manufacturer Serial Radiated or Cal Number Conducted Due EMI Spectrum Analyzer 141T Hewlett-Packard 1615A-11287 R 02/00 Display Section RF Section 8555A Hewlett-Packard 1528A-05430 R 02/00 IF Section 8552A Hewlett-Packard 1736A13353 R 02/00 Spectrum Analyzer 8593E Hewlett-Packard 3543A02032 R 05/00 Signal Generator 8648C Hewlett-Packard 3537A02340 R&C 11/99 Power Meter 437B Hewlett-Packard 3125U16900 R&C 03/00 Power Meter Sensor 8481D Hewlett-Packard 331BA11513 R&C 03/00 Amplifier < 5 GHz ZHL - 1042J Mini-Circuits H110894-008 R N/A Amplifier > 5 GHz JCA010-415 JCA 103 R N/A Power Supply 6284A Hewlett-Packard 2320A02135 R 04/00 Antenna - Dipole Roberts Compliance Design 3038 R 07/99 Antenna - 3115 EMCO 9508-4550 R 03/00 Double Ridged Guide Antenna - Log periodic 3146 EMCO 9901-1044 R 04/00 Antenna - Bi-conical 3108 EMCO 9203-2455 R 10/99 9. AMBIENT CONDITIONS DURING TEST: Date Temp ( °F ) Humidity ( % RH ) 06/14/99 67 50 06/15/99 66 48 06/16/99 58 81 06/17/99 60 65 10. DISTRIBUTION LIST: Klaus Bender Archive 11. REFERENCES: ANSI C63.4-1992 Report # W990617 Page 7 of 16

FCC ID: EO940GN-1 12. DESCRIPTION OF TEST PROCEDURE 12.1 Radiated Emissions (Transmitter and Receiver) These tests measure the transmitter radiated emissions and the receiver radiated emissions using a spectrum analyzer and receiving antenna. During testing the EUT was placed on a non-conducting support, 80 cm above the ground plane. The RF spectrum was scanned from 30 MHz to 1000 MHz using the Bi-conical and Log Periodic antennae. A Double Ridged Guide antenna was used from 1 GHz to the product’s tenth harmonic of the transmitter (9.1758 GHz) and 5 GHz on the receiver. Levels at frequencies below 1 GHz were measured with the spectrum analyzer resolution bandwidth at 120 kHz and levels at frequencies at or above 1 GHz were measured with the spectrum analyzer resolution bandwidth at 1 MHz for the transmitter. The receiver harmonics were checked with the spectrum analyzer at the following settings: Resolution Bandwidth = 1 MHz; Video Bandwidth = 10 Hz and Span = 0 Hz. The emissions were measured with vertical and horizontal antenna polarizations. The antenna height was varied from 1-4 meters and the EUT was rotated from 0-360°. Maximum emissions were recorded. The antenna to EUT test distance was 3 meters horizontally. An analog spectrum analyzer was used as an aid in locating the maximum radiation emission as the EUT orientation and antenna position were varied. The level was determined on the HP8593E by means of signal substitution or determined amplifier gains. Testing was performed according to the procedures in ANSI C63.4-1992. 13. RESULTS 13.1 Radiated Emissions (Transmitter and Receiver) Final emission levels are expressed in dBuV/m. This level is determined by converting the reading from the spectrum analyzer or power meter to dBuV and adding the antenna correction factor (dB) and cable loss (dB) to it. The amplifier gain is accounted for when the spectrum analyzer display is calibrated. Antenna and cable loss factors are included in the tabular results contained in Attachment A. All levels below 1 GHz are quasi-peak with the exception of the transmitter fundamental. The transmitter fundamental is expressed in peak level as it is below the quasi-peak limit. Transmitter final levels of frequencies above 1 GHz are peak average with a 20 dB relaxation allowed for duty cycle. Refer to Attachment B for duty cycle calculation. Report # W990617 Page 8 of 16

FCC ID: EO940GN-1 13.1.1 Transmitter Radiated Emissions RULE: Part 15.249: Emission of RF Energy - Transmitter STANDARD: Part 15.33 (a)(1) Frequency range of the radiated measurements: Tenth harmonic of the highest fundamental frequency. Part 15.249 Field Strength of Fundamental Frequency: 50,000 uV/m (94 dBuV/m) Field Strength of Harmonic Radiation: 500 uV/m (54 dBuV/m) Field Strength of Spurious Radiation: Part 15.249(c): Emissions radiated outside the specified frequency bands, except for harmonics, shall be attenuated by at least 50 dB below the level of the fundamental or to the general radiation limits in 15.209, whichever is the lesser attenuation. Part 15.209 Except as provided elsewhere in this subpart, the emissions from an intentional radiator shall not exceed the field strength levels specified in the following table: Frequency of Emission Field Strength Field Strength (MHz) (uV/m) (dBuV/m) 30-88 100 40 88-216 150 43.5 216-960 200 46 Above 960 500 54 TEST RESULTS: The EUT transmitter radiated emissions met the requirements established by FCC Part 15.249 for intentional radiators. The EUT was tested from 30 MHz to the transmitter’s 10th harmonic (9.1758 GHz). No EUT transmitter emissions other than the fundamental at 917.58 MHz were detected in the range from 30 MHz to 1 GHz. The transmitter fundamental (917.58 MHz) was measured to be 92.8 dBuV/m peak. This is 1.2 dB below the quasi-peak limits established by Part 15.249. The worst case harmonic radiated emission was determined to be 74 dBuV/m peak. The harmonic limit established by Part 15.249 and Part 15.35 (b) is 74 dBuV/m (conversion of instantaneous peak power to average power allows an additional 20 dB relaxation In compliance with FCC Part 15.35 (b), conversion of instantaneous peak power to average power is addressed in Attachment B. Report # W990617 Page 9 of 16

FCC ID: EO940GN-1 TEST DATA: Refer to Attachment A for detailed test results Refer to Attachment D for Part 15.31 (m); Measurement of Relative Field Intensity at the High and Low Frequencies of the EUT. 13.1.2 Receiver Radiated Emissions RULE: Part 15.109: Radiated Emission Limits STANDARD: Part 15.33 (b)(1) The upper frequency of measurement range: 5000 MHz. Part 15.109 (a) The field strength of radiated emissions from unintentional radiators at a distance of three meters shall not exceed the following values: Frequency of Emission Field Strength Field Strength (MHz) (uV/m) (dBuV/m) 30-88 100 40 88-216 150 43.5 216-960 200 46 Above 960 500 54 TEST RESULTS: The EUT receiver radiated emissions met the levels established by FCC Part 15.109 (a) requirements for receivers. The EUT was tested from 30 MHz to 5000 MHz. The receiver fundamental (942.6 MHz) was determined to be 33 dBuV/m quasi-peak. The limit established by Part 15.109 (a) is 46 dBuV/m. No EUT receiver emissions other than the fundamental at 942.6 MHz were detected in the range from 30 MHz to 1 GHz. There were no receiver harmonics detected. TEST DATA: Refer to Attachment A for detailed test results Report # W990617 Page 10 of 16

FCC ID: EO940GN-1 ATTACHMENT A EUT: Encoder/Receiver/Transmitter FCC Part 15.249 Model : 40WN Radiated Emissions-Transmitter Serial No.: 86 Test Dates: June 14, 15 & 16, 1999 Engineer: Robert A. Sleen [2] [3] Duty [4] Ant. Cable Corrected Cycle Final Freq. Ant. Level Level Factor Loss Level Limit Factor Limit Margin MHz Pos. dBm [1] dBuV dB dB dBuV/m dBuV/m dB dBuV/m dB 917.58 V -44.6 P 62.4 28.8 1.6 92.8 94.0 94.0 1.2 917.58 H -52.5 P 54.5 28.8 1.6 84.9 94.0 94.0 9.1 1835.2 V -64.8 P 42.2 28.7 2.1 73.0 54.0 -20.0 74.0 1.0 1835.2 H -63.8 P 43.2 28.7 2.1 74.0 54.0 -20.0 74.0 0.0 2752.7 V -75.0 P 32.0 31.5 2.9 66.3 54.0 -20.0 74.0 7.7 2752.7 H -67.6 P 39.4 31.5 2.9 73.7 54.0 -20.0 74.0 0.3 3670.3 V -70.8 P 36.2 33.4 3.3 72.9 54.0 -20.0 74.0 1.1 3670.3 H -71.7 P 35.3 33.4 3.3 71.9 54.0 -20.0 74.0 2.1 4587.9 V -76.7 P 30.3 35.0 4.1 69.4 54.0 -20.0 74.0 4.6 4587.9 H -81.2 P 25.8 35.0 4.1 64.9 54.0 -20.0 74.0 9.1 5505.5 V -92.3 P 14.7 36.7 4.8 56.1 54.0 -20.0 74.0 17.9 5505.5 H -94.7 P 12.3 36.7 4.8 53.8 54.0 -20.0 74.0 20.2 6423.1 V -84.2 P 22.8 37.3 5.5 65.5 54.0 -20.0 74.0 8.5 6423.1 H -88.8 P 18.2 37.3 5.5 60.9 54.0 -20.0 74.0 13.1 7340.6 V -95.4 NF 11.6 38.9 6.2 56.7 54.0 -20.0 74.0 17.3 7340.6 H -96.2 NF 10.9 38.9 6.2 56.0 54.0 -20.0 74.0 18.1 8258.2 V -96.4 NF 10.6 39.2 6.4 56.3 54.0 -20.0 74.0 17.7 8258.2 H -96.4 NF 10.6 39.2 6.4 56.2 54.0 -20.0 74.0 17.8 9175.8 V -95.5 NF 11.5 39.9 8.0 59.4 54.0 -20.0 74.0 14.7 9175.8 H -95.9 NF 11.1 39.9 8.0 59.0 54.0 -20.0 74.0 15.0 Notes: [1] QP = Quasi-peak, P = Peak, NF = Noise Floor of the Spectrum Analyzer [2] The Spectrum Analyzer settings are as follows: Fundamental - Resolution Bandwidth = 120 kHz; Video Bandwidth = 300 kHz; Span = 10 MHZ. Harmonics - Resolution Bandwidth = 1 MHz; Video Bandwidth = 1 MHz; Span = 50 MHZ. [3] "Corrected Level" numbers in bold are RF signal levels. "Corrected Level" numbers in italics are noise floor and as such indicate that there is no RF signal at that level. The "Antenna Correction Factor" and the "Cable Loss" have been factored in with the noise floor levels in order to demonstrate what the "Corrected Level" of an RF signal at the noise floor level would have been equal to. [4] The "Final Limit", in the case of the harmonics, represents 20 dB above the average limit in FCC Part 15.249 Refer to Attachment B (Part 15.35 (b)). Report # W990617 Page 11 of 16

FCC ID: EO940GN-1 ATTACHMENT A cont. EUT: Encoder/Receiver/Transmitter FCC Part 15.109 Model : 40WN Radiated Emissions-Receiver Serial No.: 86 Test Dates: June 14, 15 & 16, 1999 Engineer: Robert A. Sleen [2] Ant. Cable Final Final Freq. Ant. Level Level Factor Loss Level Limit Margin MHz Pos. dBm [1] dBuV dB dB dBuV/m dBuV/m dB 942.55 V QP 7.9 30.3 1.7 39.9 46.0 6.1 942.55 H QP 5.1 30.3 1.7 37.0 46.0 9.0 1885.10 V -109.4 NF -2.4 29.1 2.2 28.8 54.0 25.2 1885.10 H -109.6 NF -2.6 29.1 2.2 28.7 54.0 25.3 2827.65 V -109.5 NF -2.5 31.8 3.1 32.4 54.0 21.6 2827.65 H -109.7 NF -2.7 31.8 3.1 32.2 54.0 21.8 3770.20 V -111.0 NF -4.0 33.3 3.5 32.8 54.0 21.2 3770.20 H -111.0 NF -4.0 33.3 3.5 32.8 54.0 21.2 4712.75 V -106.7 NF 0.3 35.4 4.5 40.2 54.0 13.8 4712.75 H -106.6 NF 0.4 35.4 4.5 40.3 54.0 13.7 Notes: [1] QP = Quasi-peak, P = Peak, NF = Noise Floor of the Spectrum Analyzer [2] The Spectrum Analyzer settings are as follows: Fundamental - Resolution Bandwidth = 120 kHz; Video Bandwidth = 300 kHz; Span = 10 MHZ. Harmonics - Resolution Bandwidth = 1 MHz; Video Bandwidth = 10 Hz; Span = 0 HZ. "Final Level" numbers in bold are RF signal levels. "Final Level" numbers in italics are noise floor and as such indicate that there is no RF signal at that level. The "Antenna Correction Factor" and the "Cable Loss" have been factored in with the noise floor levels in order to demonstrate what the "Final Level" of an RF signal at the noise floor level would have been equal to. Report # W990617 Page 12 of 16

FCC ID: EO940GN-1 ATTACHMENT B Conversion from Instantaneous Peak Power to Average Power 40WN ERT® The ERT Unit Transmits a sequence of eight Manchester Encoded Messages in a ten second Period. Each of the messages are 5.86 msec long. Each message is broadcast on a different frequency within the Transmit Band. 8 Messages 8 Messages ││││││││ ││││││││ | | 114 msec | 11 Seconds | Zooming in on a message length; 12 - 8 bit bytes 12 - 8 bit bytes ¦¦¦¦ ¦ ¦¦ ¦¦ ¦¦¦ ¦¦ ¦¦¦¦ ¦ ¦¦ ¦¦ ¦¦¦ ¦¦ | 5.86 msec | | 114 msec | Where bit rate is: 16.384 Kbits/Second. During the transmission of eight messages, the Transmit Duty Cycle can be computed. % Duty Cycle Transmit = (96 bits) (1/16.384 Kbits/Sec) (0.5) (100%) / (100 msec) % Duty Cycle Transmit = 2.93 % Note: The 0.5 factor is a result of Manchester Encoded Data. Expressing the correction factor for Duty Cycle in dB: dB Duty Cycle Transmit = 20 Log (Duty Cycle) dB Duty Cycle Transmit = 20 Log (0.0293) dB Duty Cycle Transmit = -30.7 dB Report # W990617 Page 13 of 16

FCC ID: EO940GN-1 ATTACHMENT C Part 15.231(c) Bandwidth Plot Report # W990617 Page 14 of 16

FCC ID: EO940GN-1 ATTACHMENT D Part 15.31(m) Measurement of Relative Field Intensity at the High and Low Frequencies of the EUT. Report # W990617 Page 15 of 16



Document Created: 2001-06-08 16:35:34
Document Modified: 2001-06-08 16:35:34
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