Test Report

FCC ID: 2AAV8K

Test Report

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FCCID_2066375

Reference No.: WTD13S0604591E Page 2 of 23

2 Test Summary
Test Items Test Requirement Result
Conducted Emissions 15.207 N/A
15.205(a)
Radiated Spurious Emissions 15.209 PASS
15.231(b)
Periodic Operation 15.231(a) PASS
20dB Bandwidth 15.231(c) PASS
Antenna Requirement 15.203 PASS

Reference No.: WTD13S0604591E Page 3 of 23

3 Contents
Page
1 COVER PAGE ............................................................................................................................................1

2 TEST SUMMARY ....................................................................................................................................................2

3 CONTENTS ..............................................................................................................................................................3

4 GENERAL INFORMATION ...................................................................................................................................4
4.1 GENERAL DESCRIPTION OF E.U.T. .............................................................................................................4
4.2 DETAILS OF E.U.T........................................................................................................................................4
4.3 TEST FACILITY ..............................................................................................................................................4
4.4 TEST LOCATION............................................................................................................................................4
4.5 GENERAL CONDITION ...................................................................................................................................4
4.5.1 Environmental condition of test site.............................................................................................................5
4.5.2 Test Mode .....................................................................................................................................................5
5 EQUIPMENT USED DURING TEST ....................................................................................................................6
5.1 EQUIPMENTS LIST ........................................................................................................................................6
5.2 MEASUREMENT UNCERTAINTY ....................................................................................................................6
5.3 TEST EQUIPMENT CALIBRATION ..................................................................................................................6
6 CONDUCTED EMISSION TEST...........................................................................................................................7

7 RADIATION EMISSION TEST ..............................................................................................................................8
7.1 TEST EQUIPMENT ...............................................................................................................................................8
7.2 MEASUREMENT UNCERTAINTY ..........................................................................................................................8
7.3 TEST PROCEDURE ..............................................................................................................................................8
7.4 EUT OPERATION: ........................................................................................................................................8
7.5 TEST SETUP .................................................................................................................................................9
7.6 SPECTRUM ANALYZER SETUP ...................................................................................................................10
7.7 TEST PROCEDURE .....................................................................................................................................10
7.8 CORRECTED AMPLITUDE & MARGIN CALCULATION ..................................................................................10
7.9 SUMMARY OF TEST RESULTS ....................................................................................................................11
8 PERIODIC OPERATION ......................................................................................................................................13

9 20DB BANDWIDTH ..............................................................................................................................................16
9.1 TEST PROCEDURE .....................................................................................................................................16
9.2 TEST RESULT .............................................................................................................................................16
10 ANTENNA REQUIREMENT ................................................................................................................................17

11 PHOTOGRAPHS OF TESTING..........................................................................................................................18
11.1 RADIATION EMISSION TEST VIEW ..............................................................................................................18
12 PHOTOGRAPHS - CONSTRUCTIONAL DETAILS........................................................................................19
12.1 EUT - APPEARANCE VIEW .........................................................................................................................19
12.2 EUT- INTERNAL VIEW ...............................................................................................................................22

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Reference No.: WTD13S0604591E Page 4 of 23

4 General Information
4.1 General Description of E.U.T.
Product Name : Wireless Doorbell(Transmitter)
Model No. : K, T, X, U ,V
Type of Modulation : FSK
Model Description : Only the appearance is different. The model K is test sample.
Frequency Range : 433.92 MHz (transmitter)
Antenna installation : PCB Printed Antenna
4.2 Details of E.U.T.
Technical Data : DC 3V
Adapter manufacturer : N/A
M/N : N/A

4.3 Test Facility
The test facility has a test site registered with the following organizations:
• IC – Registration No.: 7760A
Waltek Services (Shenzhen) Co., Ltd. has been registered and fully described in a report filed with the
Industry Canada. The acceptance letter from the Industry Canada is maintained in our files.
Registration 7760A, July 12, 2012.
• FCC – Registration No.: 880581
Waltek Services (Shenzhen) Co., Ltd. EMC Laboratory has been registered and fully described in a
report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC
is maintained in our files. Registration 880581, May 26, 2011.

4.4 Test Location
All Emissions testswere performed at:-
Waltek Services(Shenzhen) Co., Ltd. at 1/F, Fukangtai Building,West Baima Rd., Songgang Street,
Baoan District, Shenzhen518105, China.

4.5 General condition
Ambient Condition: 25.5 ℃ 58 %RH

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Reference No.: WTD13S0604591E Page 5 of 23

4.5.1 Environmental condition of test site
For intentional radiators, measurements of the variation of the input power or the radiated signal level
of the fundamental frequency component of the emission, as appropriate, shall be performed with the
supply voltage varied between 85% and 115% of the nominal rated supply voltage. For battery
operated equipment, the equipment tests shall be performed using a new battery.

The follow condition is applicable.

Test voltage Test Voltage
Rated voltage New Battery DC 3V

4.5.2 Test Mode
All test mode(s) and condition(s) mentioned were considered and evaluated respectively by
performing full tests, the worst data were recorded and reported.

Test mode Frequency
Transmitting 433.92MHz

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Reference No.: WTD13S0604591E Page 6 of 23

5 Equipment Used during Test
5.1 Equipments List
3m Semi-anechoic Chamber for Radiation Emissions
Last
Calibration
Item Equipment Manufacturer Model No. Serial No.Calibration
Due Date
Date
1. EMC Analyzer Agilent E7405A MY45114943 Aug. 13,2012 Aug. 12,2013
2. Active Loop Antenna Beijing Dazhi ZN30900A - Aug. 13,2012 Aug. 12,2013
Trilog Broadband
3. SCHWARZBECK VULB9163 336 Apr. 20,2013 Apr. 19,2014
Antenna
Broad-band Horn
4. SCHWARZBECK BBHA 9120 D 667 Apr. 20,2013 Apr. 19,2014
Antenna
Broad-band Horn
5. SCHWARZBECK BBHA 9170 399 Aug. 13,2012 Aug. 12,2013
Antenna
Broadband COMPLIANCE
6. PAP-1G18 2004 Apr.07,2013 Apr.06,2014
Preamplifier DIRECTION
Broadband
7. SCHWARZBECK BBV 9718 9718-148 Aug. 13,2012 Aug. 12,2013
Preamplifier
8. Cable Top EWO2014-7 - Apr. 20,2013 Apr. 19,2014
9. Cable Top TYPE16(13M) - Aug. 13,2012 Aug. 12,2013

5.2 Measurement Uncertainty
Parameter Uncertainty
Radio Frequency ± 1 x 10-6
RF Power ± 1.0 dB
RF Power Density ± 2.2 dB
± 5.03 dB
Radiated Spurious (30M~1000MHz)
Emissions test ± 4.74 dB
(1000M~25000MHz)

5.3 Test Equipment Calibration
All the test equipments used are valid and calibrated by CEPREI Certification Body that
address is No.110 Dongguan Zhuang RD. Guangzhou, P.R.China.

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Reference No.: WTD13S0604591E Page 7 of 23

6 Conducted Emission Test
Test Requirement: FCC CFR 47 Part 15 Section 15.207
Test Method: ANSI C63.4:2003
Frequency Range: 150kHz to 30MHz
Class: Class B
Limit: 66-56 dBμV between 0.15MHz & 0.5MHz
56 dBμV between 0.5MHz & 5MHz
60 dBμV between 5MHz & 30MHz
Detector: Peak for pre-scan (9kHz Resolution Bandwidth) Quasi-Peak & Average
if maximised peak within 6dB of Average Limit
Test Result: N/A
Remark: This device powered by battery, this test is not applicable.

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Reference No.: WTD13S0604591E Page 8 of 23

7 Radiation Emission Test
Test Requirement: FCC Part15 Paragraph 15.231
Test Method: Based on FCC Part15 Paragraph 15.33
Frequency Range: 30MHz to 5GHz
Measurement Distance: 3m
Test Result: PASS

7.1 Test Equipment
Please refer to Section 5 this report.

7.2 Measurement Uncertainty
All measurements involve certain levels of uncertainties, especially in the field of EMC. The
factors contributing to uncertainties are spectrum analyzer, cable loss, antenna factor
calibration, antenna directivity, antenna factor variation with height, antenna phase center
variation, antenna factor frequency interpolation, measurement distance variation, site
imperfections, mismatch (average), and system repeatability.

Based on ANSI C63.4: 2003, The Treatment of Uncertainty in EMC Measurements, the best
estimate of the uncertainty of a radiation emissions measurement at Waltek EMC Lab is +2.9
dB.

7.3 Test Procedure
1. New battery were installed in the equipment under test for radiated emissions test.
2.This is a handhold device,The radiation emission should be tested under 3-axes
position(lying,side and stand),After pre-test,It was found that the worse radiation emission
was get at the lying position.
3. Maximizing procedure was performed on the six (6) highest emissions to ensure EUT is
compliant with all installation combinations.
4. All data was recorded in the peak and average detection mode.
5. The EUT was under working mode during the final qualification test and the configuration
was used to represent the worst case results.

7.4 EUT Operation:
Operating Environment:
Temperature: 25.5 °C
Humidity: 51 % RH
Atmospheric Pressure: 1010 mbar

Operation Mode:
The EUT was tested in working mode. The test data were shown as follow.

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Reference No.: WTD13S0604591E Page 10 of 23

7.6 Spectrum Analyzer Setup
According to FCC Part15 Rules, the system was tested from 30MHz to 5GHz.
30MHz ~ 1GHz
Sweep Speed .....................................................Auto
IF Bandwidth .....................................................120 KHz
Video Bandwidth ..................................................100KHz
Quasi-Peak Adapter Bandwidth ...........................120 KHz
Quasi-Peak Adapter Mode...................................Normal
Resolution Bandwidth ..........................................100KHz
Above 1GHz
Sweep Speed .....................................................Auto
IF Bandwidth .....................................................120 KHz
Video Bandwidth ..................................................3MHz
Quasi-Peak Adapter Bandwidth ...........................120 KHz
Quasi-Peak Adapter Mode...................................Normal
Resolution Bandwidth ..........................................1MHz

7.7 Test Procedure
1. The EUT is placed on a turntable, which is 0.8m above ground plane.
2. The turntable shall be rotated for 360 degrees to determine the position of maximum emission level.
3. EUT is set 3m away from the receiving antenna, which is moved from 1m to 4m to find out the
maximum emissions.
4. Maximum procedure was performed on the six highest emissions to ensure EUT compliance.
5. And also, each emission was to be maximized by changing the polarization of receiving antenna
both horizontal and vertical.
6. Repeat above procedures until the measurements for all frequencies are complete.
7. The radiation measurements are tested under 3-axes(X, Y, Z) position(X denotes lying on the table,
Y denotes side stand and Z denotes vertical stand). After pre-test, It was found that the worse radiation
emission was get at the X position. So the data shown was the X position only.
7.8 Corrected Amplitude & Margin Calculation
The Corrected Amplitude is calculated by adding the Antenna Factor and Cable Factor, and
subtracting the Amplifier Gain from the Amplitude reading. The basic equation is as follows:
Corr. Ampl. = Indicated Reading + Antenna Factor + Cable Factor - Amplifier Gain the “Margin”
column of the following data tables indicates the degree of compliance with the applicable limit. For
example, a margin of -7dB means the emission is 7dB below the maximum limit for Class B. The
equation for margin calculation is as follows:
Margin = Corr. Ampl. – Limit

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Reference No.: WTD13S0604591E Page 13 of 23

8 Periodic Operation
The duty cycle was determined by the following equation:
To calculate the actual field intensity,The duty cycle correction factor in decibel is needed for later use
and can be obtained from following conversion

Duty Cycle(%)=
Total On interval in a complete pulse train/ Length of a complete pulse train * %

Duty Cycle Correction Factor(dB)=20 * Log10(Duty Cycle(%))

Pulse Train Number of Pulse T(ms) Total Time(ms)
Long Pulse 7 1.104 7.728
Short Pulse 11 0.384 4.224

Total On interval in a complete pulse
11.95
train(ms)

Length of a complete pulse train(ms) 31.50

Duty Cycle(%) 0.38

Duty Cycle Correction Factor(dB) -8.42

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Reference No.: WTD13S0604591E Page 17 of 23

10 Antenna Requirement
According to the FCC Part 15 Paragraph 15.203, 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 to the intentional radiator shall be considered sufficient to
comply with the provisions of this section. This product use a permanent PCB printed antenna, fulfill
the requirement of this section

Waltek Services (Shenzhen) Co.,Ltd.
http://www.waltek.com.cn

Document Created: 2013-09-09 09:05:55
Document Modified: 2013-09-09 09:05:55

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