Test Report

FCC ID: VUJATR2000S1

Test Report

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FCCID_1929718

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

Table of Contents
1.General Information ..................................................................................... 4
1.1 Testing Laboratory ............................................................................................. 4
1.2 Details of Applicant ............................................................................................ 4
1.3 Description of EUT ............................................................................................. 4
1.4. Declaration by the manufacturer ..................................................................... 4
1.6. Test Equipment List .......................................................................................... 5
1.7. Summary of Test Results ................................................................................. 6
1.8 Conclusion of worst-case and operation mode .............................................. 7
1.9 Test report revision ............................................................................................ 7
2. Radiated Spurious Emissions and Conducted Spurious Emission ....... 8
2.1. Test Setup .......................................................................................................... 8
2.2. Limit .................................................................................................................... 8
2.3. Test Procedures ................................................................................................ 9
2.3.1. Test Procedures for Radiated Spurious Emissions .................................. 9
2.3.2. Test Procedures for Conducted Spurious Emissions .............................. 9
2.4. Test Results ..................................................................................................... 10
2.4.1. Radiated Emission...................................................................................... 10
2.4.2. Conducted Spurious Emissions ............................................................... 11
3. Carrier Frequency Separation .................................................................. 17
3.1.Test Setup ......................................................................................................... 17
3.2. Limit .................................................................................................................. 17
3.3 Test Procedure: ................................................................................................ 17
3.4 Test Results: ..................................................................................................... 17
4.Number of Hopping Frequencies .............................................................. 18
4.1.Test Setup ......................................................................................................... 18
4.2. Limit .................................................................................................................. 18
4.3 Test Procedure: ................................................................................................ 18
4.4 Test Results: ..................................................................................................... 18
5. 20dBc BW................................................................................................... 19
5.1. Test Setup ........................................................................................................ 19
5.2. Limit .................................................................................................................. 19
5.3. Test Procedure ................................................................................................ 19
5.4. Test Results ..................................................................................................... 19
6. Time of Occupancy (Dwell Time) ............................................................. 22
6.1. Test Setup ........................................................................................................ 22
6.2. Limit .................................................................................................................. 22
6.3. Test Procedure ................................................................................................ 22
6.4. Test Results ..................................................................................................... 22
7. Maximum Peak Output Power Measurement .......................................... 23
7.1. Test Setup ........................................................................................................ 23
7.2. Limit .................................................................................................................. 23
7.3. Test Procedure ................................................................................................ 23
7.4. Test Results ..................................................................................................... 23

TRF-RF-212(00)101214 Page2 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

8. Transmitter AC Power Line Conducted Emission .................................. 26
8.1. Test Setup ........................................................................................................ 26
8.2. Limit .................................................................................................................. 26
8.3. Test Procedures .............................................................................................. 26
8.4. Test Results ..................................................................................................... 27
9. Antenna Requirement ............................................................................... 29
9.1. Test Setup ........................................................................................................ 29
9.2 Limit ................................................................................................................... 29
9.3 Test Procedure ................................................................................................. 29
9.4 Conclusion:....................................................................................................... 29
APPENDIX I .................................................................................................... 30

TRF-RF-212(00)101214 Page3 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

1.General Information
1.1 Testing Laboratory
Digital EMC Co., Ltd.
683-3, Yubang-Dong, Cheoin-Gu, Yongin-Si, Kyunggi-Do, 449-080, Korea
www.digitalemc.com
Telephone : + 82-31-321-2664
FAX : + 82-31-321-1664

1.2 Details of Applicant
Applicant : ATID Co., Ltd.
#1210 ByuksanKyungin digital valley II 418-10 Gasan-Dong,
Address :
Gumchon-Gu, Seoul, 153-803, Korea
Contact person : Nam-Jung, Kim
Phone No. : +82-2-522-1436

1.3 Description of EUT

Product UHF RFID Module

Model Name AT-R2000-S1

Serial Number Identical prototype

Power Supply DC 4.0 V

Frequency Range 902.75 ~ 927.25 MHz

Modulation Technique A1D

Number of Channels 50(Channel Spacing 500kHz)

Antenna Type Circularly Polarized Patch Antenna

Antenna Gain Max. PK 1.071dBi

1.4. Declaration by the manufacturer
1. This device can uses a antenna selectively in following antenna lists.
- Circularly Polarized Patch Antenna / AEP50-915RHCP-UFL / Max. PK gain: +0.888dBi
(Refer to 1 page of antenna specification file.)
- Circularly Polarized Patch Antenna / AEP55-915RHCP-UFL / Max. PK gain: -0.154dBi
(Refer to 10 page of antenna specification file.)
- Circularly Polarized Patch Antenna / AEP60-915RHCP-UFL / Max. PK gain: +1.071dBi
(Refer to 19 page of antenna specification file.)

TRF-RF-212(00)101214 Page4 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

1.7. Summary of Test Results

FCC Part Test Status
Parameter
Section(s) Condition Note 1

I. Transmit mode (TX)

Carrier Frequency Separation C

Number of Hopping Frequencies C
15.247(a)
20 dB Bandwidth C

Dwell Time Conducted C

15.247(b) Transmitter Output Power C

Band-edge /Conducted C
15.247(d)
Conducted Spurious Emissions C

15.205, 15.209 Radiated Spurious Emissions Radiated C
Note.2

AC Line
15.207 AC Conducted Emissions C
Conducted

15.203 Antenna Requirements - C

Note 1: C=Comply NC=Not Comply NT=Not Tested NA=Not Applicable
Note 2: This test item was performed in each axis. And the worst case data were reported.
Semi anechoic chamber registration Number : 678747

TRF-RF-212(00)101214 Page6 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

1.8 Conclusion of worst-case and operation mode
The field strength of spurious emission was measured using the worstantenna(AEP60-915RHCP-UFL) in three
orthogonal EUT positions(X-axis, Y-axis and Z-axis).

Tested frequency information,
- Hopping Function: Enable
TXFrequency(MHz) RX Frequency(MHz)

Hopping Band 902.75 ~ 927.25 902.75 ~ 927.25

- Hopping Function: Disable
TXFrequency(MHz) RX Frequency(MHz)

Lowest Channel 902.75 902.75

Middle Channel 915.25 915.25

Highest Channel 927.25 927.25

1.9 Test report revision

Test Report No. Date Description

DRTFCC1303-0279 Mar.21, 2013 Final version for Approval

TRF-RF-212(00)101214 Page7 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

2. Radiated Spurious Emissions and Conducted Spurious Emission
2.1. Test Setup
Refer to the APPENDIX I.
2.2. Limit
According to §15.247(d), in any 100 ㎑ bandwidth outside the frequency band in which the spread spectrum or
digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional
radiator shall be at least 20 ㏈ below that in the 100 ㎑ bandwidth within the band that contains the highest level of
the desired power, based on either an RF conducted or a radiated measurement , provided the transmitter
demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power
limits based on the use of RMS averaging over a time interval , as permitted under paragraph(b)(3) of this section , the
attenuation required under this paragraph shall be 30 ㏈ instead of 20 ㏈. Attenuation below the general limits
specified in section §15.209(a) is not required. In addition, radiated emission which in the restricted band, as define in
section §15.205(a), must also comply the radiated emission limits specified in section §15.209(a) (see section
§15.205(c))

According to § 15.209(a), 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 (MHz) Limit (uV/m) @ 3m
30 ~ 88 100 **
88 ~ 216 150 **
216 ~ 960 200 **
Above 960 500
** Except as provided in 15.209(g), fundamental emissions from intentional radiators operating under this Section
shall not be located in the frequency bands 54-72 MHz, 76-88MHz, 174-216MHz or 470-806MHz. However,
operation within these frequency bands is permitted under other sections of this Part, e.g. 15.231 and 15.241.

According to § 15.205(a) and (b), only spurious emissions are permitted in any of the frequency bands listed below:
MHz MHz MHz MHz GHz GHz
0.009 ~ 0.110 8.41425 ~ 8.41475 108 ~ 121.94 1300 ~ 1427 3600 ~ 4400 14.47 ~ 14.5
0.495 ~ 0.505 12.29 ~ 12.293 123 ~ 138 1435 ~ 1626.5 4.5 ~ 5.15 15.35 ~ 16.2
2.1735 ~ 2.1905 12.51975 ~ 12.52025 149.9 ~ 150.05 1645.5 ~ 1646.5 5.35 ~ 5.46 17.7 ~ 21.4
4.125 ~ 4.128 12.57675 ~ 12.57725 156.52475 ~ 1660 ~ 1710 7.25 ~ 7.75 22.01 ~ 23.12
4.17725 ~ 4.17775 13.36 ~ 13.41 156.52525 1718.8 ~ 1722.2 8.025 ~ 8.5 23.6 ~ 24.0
4.20725 ~ 4.20775 16.42 ~ 16.423 156.7 ~ 156.9 2200 ~ 2300 9.0 ~ 9.2 31.2 ~ 31.8
6.215 ~ 6.218 16.69475 ~ 16.69525 162.0125 ~ 167.17 2310 ~ 2390 9.3 ~ 9.5 36.43 ~ 36.5
6.26775 ~ 6.26825 16.80425 ~ 16.80475 167.72 ~ 173.2 2483.5 ~ 2500 10.6 ~ 12.7 Above 38.6
6.31175 ~ 6.31225 25.5 ~ 25.67 240 ~ 285 2655 ~ 2900 13.25 ~ 13.4
8.291 ~ 8.294 37.5 ~ 38.25 322 ~ 335.4 3260 ~ 3267
8.362 ~ 8.366 73 ~ 74.6 399.90 ~ 410 3332 ~ 3339
8.37625 ~ 8.38675 74.8 ~ 75.2 608 ~ 614 3345.8 ~ 3358
960 ~ 1240

The field strength of emissions appearing within these frequency bands shall not exceed the limits shown in §15.209.
At frequencies equal to or less than 1000 MHz, compliance with the limits in §15.209 shall be demonstrated using
measurement instrumentation employing a CISPR quasi-peak detector. Above 1000 MHz, compliance with the
emission limits in §15.209 shall be demonstrated based on the average value of the measured emissions. The
provisions in §15.35 apply to these measurements.

TRF-RF-212(00)101214 Page8 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

2.3. Test Procedures
Radiated emissions from the EUT were measured according to the DA 00-705 and ANSI C63.4:2003

2.3.1. Test Procedures for Radiated Spurious Emissions

1. The EUT was placed on the top of a rotating table 0.8 meters above the ground at a 3 meter anechoic chamber test
site. The table was rotated 360 degrees to determine the position of the highest radiation.
2. During performing radiated emission below 1 ㎓, the EUT was set 3 meters away from the interference receiving
antenna, which was mounted on the top of a variable-height antenna tower. During performing radiated emission
above 1 ㎓, the EUT was set 3 meter away from the interference-receiving antenna.
3. The antenna is a broadband antenna, and its height is varied from one meter to four meters above the ground to
determine the maximum value of the field strength. Both horizontal and vertical polarizations of the antenna are set
to make the measurement.
4. For each suspected emission, the EUT was arranged to its worst case and then the antenna was tuned to heights
from 1 meter to 4 meters and the table was turned from 0 degrees to 360 degrees to find the maximum reading.
5. The test-receiver system was set to Peak Detect Function and Specified Bandwidth with Maximum Hold Mode.
6. If the emission level of the EUT in peak mode was 10 ㏈lower than the limit specified, then testing could be
stopped and the peak values of the EUT would be reported. Otherwise the emissions that did not have 10 ㏈margin
would be re-tested one by one using peak, quasi-peak or average method as specified and then reported in a data
sheet.

NOTE ;
1. The resolution bandwidth and video bandwidth of test receiver/spectrum analyzer is 120 ㎑for Quasi-peak
detection (QP) at frequency below 1 ㎓.
2. The resolution bandwidth and video bandwidth of test receiver/spectrum analyzer is 1㎒for Peak detection and
frequency above 1 ㎓.
3. The resolution bandwidth of test receiver/spectrum analyzer is 1 ㎒and the video bandwidth is 10 Hz for Average
detection (AV) at frequency above 1 ㎓.

2.3.2. Test Procedures for Conducted Spurious Emissions

1.The transmitter output was connected to the spectrum analyzer.
2.The reference level of the fundamental frequency was measured with the spectrum analyzer using RBW=100 ㎑,
VBW≥ RBW.
3. The conducted spurious emission was performed using the spectrum analyzer’s spurious from the lowest frequency
generator used up to the10th harmonics.The following spectrum settings was,
RBW=100 ㎑,VBW≥ RBW, SWEEP TIME = AUTO, DETECTOR = PEAK, TRACE = MAX HOLD.

TRF-RF-212(00)101214 Page9 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

2.4. Test Results
Ambient temperature : 22oC
Relative humidity : 41%

2.4.1. Radiated Emission

9kHz ~ 10GHz Data
▪ Lowest Channel
The worst case
Frequency ANT Detector Reading T.F D.C.F. Result Limit Margin
EUT Position
(MHz) Pol Mode (dBuV) (dB/m) (dB) (dBuV/m) (dBuV/m) (dB)
(Axis)

133.330 V X QP 46.77 -9.30 N/A 37.47 43.50 6.03
456.220 H X QP 44.19 -3.70 N/A 40.49 46.00 5.51
1805.240 H Y PK 59.77 -5.73 N/A 54.04 74.00 19.96
1805.480 H Y AV 49.29 -5.73 N/A 43.56 54.00 10.44
2708.310 H Y PK 47.38 -1.57 N/A 45.81 74.00 28.19
2708.310 H Y AV 34.91 -1.57 N/A 33.34 54.00 20.66

▪ Middle Channel
The worst case
Frequency ANT Detector Reading T.F D.C.F. Result Limit Margin
EUT Position
(MHz) Pol Mode (dBuV) (dB/m) (dB) (dBuV/m) (dBuV/m) (dB)
(Axis)

133.420 V X QP 46.73 -9.30 N/A 37.43 43.50 6.07
456.280 H X QP 44.27 -3.70 N/A 40.57 46.00 5.43
1831.440 H Y PK 59.92 -5.73 N/A 54.19 74.00 19.81
1831.520 H Y AV 52.07 -5.73 N/A 46.34 54.00 7.66
2747.260 H Y PK 49.58 -1.57 N/A 48.01 74.00 25.99
2747.280 H Y AV 38.71 -1.57 N/A 37.14 54.00 16.86

▪ Highest Channel
The worst case
Frequency ANT Detector Reading T.F D.C.F. Result Limit Margin
EUT Position
(MHz) Pol Mode (dBuV) (dB/m) (dB) (dBuV/m) (dBuV/m) (dB)
(Axis)

133.360 V X QP 46.43 -9.30 N/A 37.13 43.50 6.37
456.260 H X QP 44.25 -3.70 N/A 40.55 46.00 5.45
1854.520 H Y PK 62.46 -5.73 N/A 56.73 74.00 17.27
1854.810 H Y AV 51.34 -5.73 N/A 45.61 54.00 8.39
2781.850 H Y PK 51.00 -1.57 N/A 49.43 74.00 24.57
2781.830 H Y AV 41.78 -1.57 N/A 40.21 54.00 13.79

Note.
1.No other spurious and harmonic emissions were reportedgreater than listed emissions above table.
2.Above listed point data is the worst case data.
3.Sample Calculation.
Margin = Limit – Result / Result = Reading + T.F+ DCF / T.F = AF + CL – AG
Where, T.F = Total Factor, AF = Antenna Factor, CL = Cable Loss, AG = Amplifier Gain,
DCF = Duty Cycle Correction Factor

TRF-RF-212(00)101214 Page10 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

7. Maximum Peak Output Power Measurement
7.1. Test Setup
Refer to the APPENDIX I.

7.2. Limit
The maximum peak output power of the intentional radiator shall not exceed the following :
1. §15.247(b)(2), For frequency hopping systems operating in the 902-928 MHz band: 1 watt for systems employing at
least 50 hopping channels; and, 0.25 watts for systems employing less than 50 hopping channels, but at least 25
hopping channels,

7.3. Test Procedure
1. The RF power output was measured with a Spectrum analyzer connected to the RF Antenna connector
(conductedmeasurement) while EUT was operating in transmit mode at the appropriate center frequency, A spectrum
analyzer was used to record the shape of the transmit signal.
2. The bandwidth of the fundamental frequency was measured with the spectrum analyzer using ;
RBW ≥ 20㏈BW
VBW ≥ RBW
Sweep = auto
Detector function = peak
Trace = max hold

7.4. Test Results
Ambient temperature : 22oC
Relative humidity : 53 %

Peak Output Power
Tested Channel
dBm mW
Lowest 29.951 988.781
Middle 29.931 984.238
Highest 29.904 978.138
Note 1: See next pages for actual measured spectrum plots.

TRF-RF-212(00)101214 Page23 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

8. Transmitter AC Power Line Conducted Emission
8.1. Test Setup
Refer to test setup photo.

8.2. Limit
According to §15.207(a) for an intentional radiator that is designed to be connected to the public utility (AC) power line,
the radio frequency voltage that is conducted back onto the AC power line on any frequency or frequencies, within the
band 150 ㎑ to 30 ㎒, shall not exceed the limits in the following table, as measured using a 50 uH/50 ohm line
impedance stabilization network(LISN).
Compliance with the provision of this paragraph shall on the measurement of the radio frequency voltage between each
power line and ground at the power terminal. The lower applies at the boundary between the frequency ranges.

Frequency Range Conducted Limit (dBuV)
(MHz) Quasi-Peak Average

0.15 ~ 0.5 66 to 56 * 56 to 46 *

0.5 ~ 5 56 46

5 ~ 30 60 50
* Decreases with the logarithm of the frequency

8.3. Test Procedures
Conducted emissions from the EUT were measured according to the dictates of ANSI C63.4:2003

1. The test procedure is performed in a 6.5 m × 3.5 m × 3.5 m (L × W × H) shielded room. The EUT along with its
peripherals were placed on a 1.0 m (W) × 1.5 m (L) and 0.8 m in height wooden table and the EUT was adjusted to
maintain a 0.4 meter space from a vertical reference plane.
2. The EUT was connected to power mains through a line impedance stabilization network (LISN) which provides 50
ohm coupling impedance for measuring instrument and the chassis ground was bounded to the horizontal ground
plane of shielded room.
3. All peripherals were connected to the second LISN and the chassis ground also bounded to the horizontal ground
plane of shielded room.
4. The excess power cable between the EUT and the LISN was bundled. The power cables of peripherals were
unbundled. All connecting cables of EUT and peripherals were moved to find the maximum emission.

TRF-RF-212(00)101214 Page26 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

FCC ID : VUJATR2000S1
DEMC1301-00395 Report No.: DRTFCC1303-0279

9. Antenna Requirement
9.1. Test Setup
N/A

9.2 Limit
An intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party
shall be used with the device. The use of a permanently attached antenna or of an antenna that uses a unique
coupling to the intentional radiator shall be considered sufficient to comply with the provisions.

9.3 Test Procedure
N/A

9.4 Conclusion:
The internal antenna isattached on the main PCBusing the special connector. (Refer to Internal Photo file.)

TRF-RF-212(00)101214 Page29 / 30
Copyright ○
C 2013, Digital EMC Co., Ltd.

Document Created: 2013-03-22 19:14:53
Document Modified: 2013-03-22 19:14:53

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