Test Report

FCC ID: LLB2016001

Test Report

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FCCID_3165222

Radiometrics Midwest Corporation www.radiomet.com
Test Report for the Aclara, Series 3000 MTU, Models 2016-001S & 2016-001P

Table of Contents

1 ADMINISTRATIVE DATA .................................................................................................................... 3
2 TEST SUMMARY AND RESULTS ...................................................................................................... 3
3 EQUIPMENT UNDER TEST (EUT) DETAILS..................................................................................... 4
3.1 EUT Description ............................................................................................................................ 4
4 TESTED SYSTEM DETAILS .............................................................................................................. 4
4.1 Tested System Configuration ....................................................................................................... 4
4.2 Special Accessories...................................................................................................................... 4
4.3 Description of Similarity ................................................................................................................ 4
4.4 Equipment Modifications ............................................................................................................... 4
5 TEST SPECIFICATIONS AND RELATED DOCUMENTS .................................................................. 5
6 RADIOMETRICS’ TEST FACILITIES .................................................................................................. 5
7 DEVIATIONS AND EXCLUSIONS FROM THE TEST SPECIFICATIONS ......................................... 5
8 CERTIFICATION ................................................................................................................................. 6
9 TEST EQUIPMENT TABLE ................................................................................................................ 6
10 TEST SECTIONS .............................................................................................................................. 7
10.1 Peak Output Power ..................................................................................................................... 7
10.2 Occupied Bandwidth; Emissions Masks ..................................................................................... 7
10.2.1 Conducted Spurious Emissions ......................................................................................... 17
10.3 Occupied Bandwidth ................................................................................................................. 18
10.4 Field Strength of Unwanted Spurious Radiation ....................................................................... 20
10.4.1 Test Procedures ................................................................................................................. 20
Figure 1. Drawing of Radiated Emissions Setup ........................................................................... 21
10.4.2 Spurious Radiated Emissions Test Results ....................................................................... 23
10.5 Frequency Stability ................................................................................................................... 24
10.5.1 Frequency Stability Vs Temperature .................................................................................. 24
10.5.2 Frequency Stability Vs Supply Voltage .............................................................................. 24
10.5.3 Test Results for Frequency Stability................................................................................... 24
10.6 Transient Frequency Behavior .................................................................................................. 25
10.6.1 Test method ....................................................................................................................... 25
10.6.2 Limits of transient frequency .............................................................................................. 25
10.6.3 Test Results ....................................................................................................................... 26
10.6.4 Results for Time Periods t1 and t2 ..................................................................................... 26
10.6.5 Results for Time Period between t2 and t3 ........................................................................ 28
10.6.6 Results for Time Period t3 .................................................................................................. 30
11 MEASUREMENT INSTRUMENTATION UNCERTAINTY .............................................................. 32

Notice: This report must not be reproduced (except in full) without the written approval of
Radiometrics Midwest Corporation.

RP-8369A Rev. 1 Page 2 of 32

Radiometrics Midwest Corporation www.radiomet.com
Test Report for the Aclara, Series 3000 MTU, Models 2016-001S & 2016-001P

10.4 Field Strength of Unwanted Spurious Radiation

10.4.1 Test Procedures

Radiated emission measurements in the Restricted bands were performed with linearly polarized
broadband antennas. The results obtained with these antennas can be correlated with results obtained
with a tuned dipole antenna. A 10 dB linearity check is performed prior to start of testing in order to
determine if an overload condition exists. From 30 to 4700 MHz, a spectrum analyzer with a preselector
was used for measurement. Radiated emissions measurements were performed at the anechoic
chamber at a test distance of 3 meters. The entire frequency range from 30 to 4700 MHz was slowly
scanned and the emissions in the restricted frequency bands were recorded. Measurements were
performed using the peak detector function.

The spectrum analyzer was adjusted for the following settings:
1) Resolution Bandwidth = 100 kHz for spurious emissions below 1 GHz, and 1 MHz for spurious
emissions above 1GHz.
2) Video Bandwidth = 300 kHz for spurious emissions below 1 GHz, and 3 MHz for spurious
emissions above 1 GHz.
3) Sweep Speed slow enough to maintain measurement calibration.
4) Detector Mode = Positive Peak.

The transmitter to be tested was placed on the turntable in the standard test site, or an FCC listed site
compliant with ANSI C63.4. The transmitter is transmitting into a non-radiating load that is placed on the
turntable (except for the fundamental reading which had an antenna). Since the transmitter has an
integral antenna, the tests are to be run with the unit operating into the integral antenna. Measurements
were made from the lowest radio frequency generated in the equipment to the tenth harmonic of the
carrier. The transmitter was keyed during the tests.

For each spurious frequency, the test antenna was raised and lowered from 1 m to 4m to obtain a
maximum reading on the spectrum analyzer with the test antenna at horizontal polarity. Then the
turntable was rotated 360°to determine the maximum reading. This procedure was repeated to obtain
the highest possible reading. This maximum reading was recorded.

Each measurement was repeated for each spurious frequency with the test antenna polarized vertically.

RP-8369A Rev. 1 Page 20 of 32

Radiometrics Midwest Corporation www.radiomet.com
Test Report for the Aclara, Series 3000 MTU, Models 2016-001S & 2016-001P

Figure 1. Drawing of Radiated Emissions Setup

Substitution Test
Antenna Spectrum
Antenna Analyzer
REC-20

RF Signal
Generator TURNTABLE

ANSI C63.4 Listed Test Site

Notes:
• Test Antenna height varied from 1 to 4 meters
• Distance from antenna to tested system is 3 meters
• Not to Scale

Frequency Test Substitution Receiver to Signal
MHz Antenna Antenna Coupler Generator
30 - 200 ANT-44 ANT-03 REC-20 SIG-28
200 - 1000 ANT-44 ANT-06 REC-20 SIG-28
1000-5000 ANT-13 ANT-36 REC-20 SIG-28

The transmitter was removed and replaced with a broadband substitution antenna. The substitution
antenna is calibrated so that the gain relative to a dipole is known. The center of the substitution antenna
was approximately at the same location as the center of the transmitter.

The substitution antenna was fed at the transmitter end with a signal generator connected to the antenna
by means of a non-radiating cable. With the antennas at both ends horizontally polarized, and with the
signal generator tuned to a particular spurious frequency, the test antenna was raised and lowered to
obtain a maximum reading at the spectrum analyzer. The level of the signal generator output was
adjusted until the previously recorded maximum reading for this set of conditions was obtained.

The measurements were repeated with both antennas horizontally and vertically polarized for each
spurious frequency.

RP-8369A Rev. 1 Page 21 of 32

Radiometrics Midwest Corporation www.radiomet.com
Test Report for the Aclara, Series 3000 MTU, Models 2016-001S & 2016-001P

The power in dBm into a reference ideal half-wave dipole antenna was calculated by reducing the
readings obtained in steps k) and l) by the power loss in the cable between the generator and the
antenna, and further corrected for the gain of the substitution antenna used relative to an ideal half-wave
dipole antenna by the following formula:
Pd(dBm) = Pg(dBm) – cable loss (dB) + antenna gain (dB)

where:
Pd is the dipole equivalent power and
Pg is the generator output power into the substitution antenna.
The Pd levels record in step m) are the absolute levels of radiated spurious emissions in dBm.

Any emission must be attenuated below the power (P) of the highest emission contained within the
authorized bandwidth as follows:

On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd
in kHz) of more than 12.5 kHz: At least 50 + 10 log (P) dB.

Since by mathematical definition, P(dBm) – (50+10xLOG P(W)) = -20 dBm, the limit for spurious
emissions was set to -20 dBm equivalent radiated power.

RP-8369A Rev. 1 Page 22 of 32

Radiometrics Midwest Corporation www.radiomet.com
Test Report for the Aclara, Series 3000 MTU, Models 2016-001S & 2016-001P

11 MEASUREMENT INSTRUMENTATION UNCERTAINTY

Measurement Uncertainty
Radiated Emissions, E-field, 3 meters, 30 to 200 MHz 3.3 dB
Radiated Emissions, E-field, 3 meters, 200 to 1000 MHz 4.9 dB
Radiated Emissions, E-field, 3 meters, 1 to 18 GHz 4.8 dB
99% Occupied Bandwidth using REC-43 1% of frequency span
Conducted power PWM-01 at 460 MHz 0.14 dB
Amplitude measurement 1-5000 MHz; REC-11 1.5 dB
Temperature THM-02 0.6 Deg C
The uncertainties represent expanded uncertainties expressed at approximately the 95% confidence
level using a coverage factor of k=2 in accordance with CISPR 16-4-2.

RP-8369A Rev. 1 Page 32 of 32

Document Created: 2016-10-06 10:39:34
Document Modified: 2016-10-06 10:39:34

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