FCC PART 15 SUBPART C TEST REPORT

1 TEST STANDARDS

The tests were performed according to the following standards:

• FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz.
• ANSI C63.10-2013: American National Standard for Testing Unlicensed Wireless Devices
• KDB558074 D01 v05r02: Guidance for Compliance Measurements on Digital Transmission Systems (DTS), Frequency Hopping Spread Spectrum System(HFSS), and Hybrid System Devices Operating Under §15.247 of The FCC rules.

2 SUMMARY

2.1 General Remarks

2.2 Product Description

2.3 Equipment Under Test

Power supply system utilised:

• Power supply voltage options: 230V / 50 Hz, 120V / 60Hz, 12 V DC, 24 V DC, Other (specified in blank below)
• Selected: DC 5.0V From external circuit

2.4 Short description of the Equipment Under Test (EUT)

This is a Smart Camera. For more details, refer to the user's manual of the EUT.

2.5 EUT configuration

The following peripheral devices and interface cables were connected during the measurement:

• - Supplied by the manufacturer
• - Supplied by the lab

2.6 EUT operation mode

The application provider specific test software (AT command) was used to control the sample in continuous TX and RX (Duty Cycle >98%) for testing, meeting KDB558074 test requirements. IEEE 802.11b/g/n: Thirteen channels are provided to the EUT.

2.7 Block Diagram of Test Setup

Diagram illustrating the test setup: The EUT is connected to a DC 5.0V power source from an adapter.

2.8 Related Submittal(s) / Grant (s)

This submittal(s) (test report) is intended for filing to comply with Section 15.247 of the FCC Part 15, Subpart C Rules.

2.9 Modifications

No modifications were implemented to meet testing criteria.

3 TEST ENVIRONMENT

3.1 Address of the test laboratory

Shenzhen CTA Testing Technology Co., Ltd., Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao'an District, Shenzhen, China.

3.2 Test Facility

The test facility is recognized, certified, or accredited by the following organizations:

• FCC-Registration No.: 517856, Designation Number: CN1318
• Shenzhen CTA Testing Technology Co., Ltd. has been listed on the US Federal Communications Commission list of test facilities recognized to perform electromagnetic emissions measurements.
• A2LA-Lab Cert. No.: 6534.01
• Shenzhen CTA Testing Technology Co., Ltd. has been listed by American Association for Laboratory Accreditation to perform electromagnetic emission measurement.
• The 3m-Semi anechoic test site fulfils CISPR 16-1-4 according to ANSI C63.10 and CISPR 16-1-4:2010.

3.3 Environmental conditions

During the measurement, the environmental conditions were within the listed ranges:

Radiated Emission:

Conducted testing:

AC Power Conducted Emission:

4 TEST CONDITIONS AND RESULTS

4.1 AC Power Conducted Emission

Test Configuration

Diagram showing the test setup for AC Power Conducted Emission: Includes EUT, LISN, EMI receiver, vertical reference plane, and ground plane.

Test Procedure

1. The equipment was set up as per the test configuration to simulate typical actual usage per the user's manual. The EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10-2013.
2. Support equipment, if needed, was placed as per ANSI C63.10-2013.
3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10-2013.
4. The EUT received power from adapter, the adapter received AC120V/60Hz and AC 240V/60Hz power through a Line Impedance Stabilization Network (LISN) which supplied power source and was grounded to the ground plane.
5. All support equipments received AC power from a second LISN, if any.
6. The EUT test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver.
7. Analyzer / Receiver scanned from 150 KHz to 30MHz for emissions in each of the test modes.
8. During the above scans, the emissions were maximized by cable manipulation.

AC Power Conducted Emission Limit

For intentional device, according to § 15.207(a) AC Power Conducted Emission Limits is as following:

* Decreases with the logarithm of the frequency.

Test Results

Remark:

1. All modes of 802.11b/g/n were tested at Low, Middle, and High channel; only the worst result of 802.11b CH11 was reported as below:

Power supply: DC 5.0V from Adapter, AC 120V/60Hz

Polarization: L

Graph showing AC Power Conducted Emission levels (dBuV) vs. Frequency (Hz) for Line L, with QP and AV detector limits indicated. The graph shows measured data points for QP and AV detectors.

Note:

1. QP Value (dBμV)= QP Reading (dBμV)+ Factor (dB)
2. Factor (dB)=insertion loss of LISN (dB) + Cable loss (dB)
3. QPMargin (dB) = QP Limit (dBμV) - QP Value (dBμV)
4. AVMargin (dB) = AV Limit (dBμV) - AV Value (dBμV)

Power supply: DC 5.0V from Adapter, AC 120V/60Hz

Polarization: N

Graph showing AC Power Conducted Emission levels (dBuV) vs. Frequency (Hz) for Line N, with QP and AV detector limits indicated. The graph shows measured data points for QP and AV detectors.

Note:

1. QP Value (dBμV)= QP Reading (dBμV)+ Factor (dB)
2. Factor (dB)=insertion loss of LISN (dB) + Cable loss (dB)
3. QPMargin (dB) = QP Limit (dBμV) - QP Value (dBμV)
4. AVMargin (dB) = AV Limit (dBμV) - AV Value (dBμV)

4.2 Radiated Emission

Test Configuration

Frequency range 9 KHz – 30MHz: Diagram showing the test setup with a turntable, EUT, loop antenna (3m distance), and test receiver.

Frequency range 30MHz – 1000MHz: Diagram showing the test setup with a turntable, EUT, antenna (3m distance), test receiver, and coaxial cable.

Frequency range above 1GHz-25GHz: Diagram showing the test setup within a Semi-Anechoic Chamber, including EUT, turntable, antenna (1m to 4m distance), measurement instrument, controller, and coaxial cable.

Test Procedure

1. The EUT was placed on a turn table which is 0.8m above ground plane when testing frequency range 9 KHz-1GHz; the EUT was placed on a turn table which is 1.5m above ground plane when testing frequency range 1GHz – 25GHz.
2. Maximum procedure was performed by raising the receiving antenna from 1m to 4m and rotating the turn table from 0° to 360° to acquire the highest emissions from EUT.
3. And also, each emission was to be maximized by changing the polarization of receiving antenna both horizontal and vertical.
4. Repeat above procedures until all frequency measurements have been completed.
5. Radiated emission test frequency band from 9KHz to 25GHz.
6. The distance between test antenna and EUT as following table states:

7. Setting test receiver/spectrum as following table states:

Field Strength Calculation

The field strength is calculated by adding the Antenna Factor and Cable Factor and subtracting the Amplifier Gain and Duty Cycle Correction Factor(if any) from the measured reading. The basic equation with a sample calculation is as follows:

FS = RA + AF + CL - AG

Where FS = Field Strength, RA = Reading Amplitude, AF = Antenna Factor, CL = Cable Attenuation Factor (Cable Loss), AG = Amplifier Gain.

Transd=AF +CL-AG

RADIATION LIMIT

For intentional device, according to § 15.209(a), the general requirement of field strength of radiated emission from intentional radiators at a distance of 3 meters shall not exceed the following table. According to § 15.247(d), in any 100kHz bandwidth outside the frequency band in which the EUT is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20dB below that in the100kHz bandwidth within the band that contains the highest level of desired power.

The pre-test have done for the EUT in three axes and found the worst emission at position shown in test setup photos.

Test Results

Remark:

1. This test was performed with EUT in X, Y, Z position and the worse case was found when EUT in X position.
2. All three channels (lowest/middle/highest) of each mode were measured below 1GHz and recorded worst case at 802.11b low channel.
3. Radiated emission test from 9 KHz to 10th harmonic of fundamental was verified, and no emission found except system noise floor in 9 KHz to 30MHz and not recorded in this report.

For 30MHz-1GHz

Horizontal

Graph showing Radiated Emission levels (dBuV/m) vs. Frequency (Hz) for Horizontal polarization, with QP limit and peak detector data indicated.

Note:

1. Level (dBμV/m)= Reading (dBμV)+ Factor (dB/m)
2. Factor(dB/m)=Antenna Factor (dB/m) + Cable loss (dB) - Pre Amplifier gain (dB)
3. Margin(dB) = Limit (dBμV/m) - Level (dBμV/m)

Vertical

Graph showing Radiated Emission levels (dBuV/m) vs. Frequency (Hz) for Vertical polarization, with QP limit and peak detector data indicated.

Note:

1. Level (dBμV/m)= Reading (dBμV)+ Factor (dB/m)
2. Factor(dB/m)=Antenna Factor (dB/m) + Cable loss (dB) - Pre Amplifier gain (dB)
3. Margin(dB) = Limit (dBμV/m) - Level (dBμV/m)

For 1GHz to 25GHz

Note: 802.11b/802.11g/802.11n (H20) Mode all have been tested, only worse case 802.11b mode is reported.

2412 MHz

2412 MHz (Vertical)

2437 MHz

2437 MHz (Vertical)

2462 MHz

2462 MHz (Vertical)

Note:

1. Emission level (dBuV/m) = Meter Reading+ antenna Factor+ cable loss- preamp factor.
2. Margin value = Limits-Emission level.
3. Mean the PK detector measured value is below average limit.
4. The other emission levels were very low against the limit.
5. RBW1MHz VBW3MHz Peak detector is for PK value; RBW 1MHz VBW10Hz Peak detector is for AV value.

Results of Band Edges Test (Radiated)

Note: 802.11b/802.11g/802.11n (H20) Mode all have been tested, only worse case 802.11b mode is reported.

2412 MHz

2412 MHz (Vertical)

2462 MHz

2462 MHz (Vertical)

4.3 Maximum Peak Conducted Output Power

Limit

The Maximum Peak Output Power Measurement is 30dBm.

Test Procedure

Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to the power sensor.

Test Configuration

Diagram showing EUT connected to a Power Sensor.

Test Results

Note:

1. Measured output power at difference data rate for each mode and recorded worst case for each mode.
2. Test results including cable loss.
3. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20;

4.4 Power Spectral Density

Limit

For digitally modulated systems, the power spectral density conducted from the intentional radiator to the antenna shall not be greater than 8 dBm in any 3 kHz band during any time interval of continuous transmission.

Test Procedure

1. Use this procedure when the maximum peak conducted output power in the fundamental emission is used to demonstrate compliance.
2. Set the RBW ≥ 3 kHz.
3. Set the VBW ≥ 3× RBW.
4. Set the span to 1.5 times the DTS channel bandwidth.
5. Detector = peak.
6. Sweep time = auto couple.
7. Trace mode = max hold.
8. Allow trace to fully stabilize.
9. Use the peak marker function to determine the maximum power level.
10. If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat.
11. The resulting peak PSD level must be 8dBm.

Test Configuration

Diagram showing EUT connected to a SPECTRUM ANALYZER.

Test Results

Note:

1. Measured peak power spectrum density at difference data rate for each mode and recorded worst case for each mode.
2. Test results including cable loss;
3. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20;

Please refer to following plots.

Plots showing Power Spectral Density for 802.11b (CH01, CH06, CH11), 802.11g (CH01, CH06, CH11), and 802.11n(HT20) (CH01, CH06, CH11) are available in the original document.

4.5 6dB Bandwidth

Limit

For digital modulation systems, the minimum 6 dB bandwidth shall be at least 500 kHz.

Test Procedure

The transmitter output was connected to the spectrum analyzer through an attenuator. The bandwidth of the fundamental frequency was measured by spectrum analyzer with 100 KHz RBW and 300 KHz VBW. The 6dB bandwidth is defined as the total spectrum the power of which is higher than peak power minus 6dB.

Test Configuration

Diagram showing EUT connected to a SPECTRUM ANALYZER.

Test Results

Note:

1. Measured peak power spectrum density at difference data rate for each mode and recorded worst case for each mode.
2. Test results including cable loss;
3. Worst case data at 1Mbps at IEEE 802.11b; 6Mbps at IEEE 802.11g; 6.5Mbps at IEEE 802.11n HT20;

Please refer to following plots.

Plots showing 6dB Bandwidth for 802.11b, 802.11g, and 802.11n(HT20) modes are available in the original document.

4.6 Out-of-band Emissions

Limit

In any 100 kHz 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 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF con-ducted or a radiated measurement, pro-vided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter com-plies 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 dB instead of 20 dB. Attenuation below the general limits specified in §15.209(a) is not required.

Test Procedure

Connect the transmitter output to spectrum analyzer using a low loss RF cable, and set the spectrum analyzer to RBW=100 kHz, VBW= 300 kHz, peak detector, and max hold. Measurements utilizing these setting are made of the in-band reference level, bandedge and out-of-band emissions.

Test Configuration

Diagram showing EUT connected to a SPECTRUM ANALYZER.

Test Results

Remark: The measurement frequency range is from 30MHz to the 10th harmonic of the fundamental frequency. The lowest, middle and highest channels are tested to verify the spurious emissions and bandage measurement data. And record the worst data in the report.

Test plots for Out-of-band Emissions are available in the original document.

4.7 Antenna Requirement

The antenna is a PIFA antenna with 2 dBi gain. The antenna is permanently attached to the device and no provisions for replacement or modification exist. The antenna is integrated into the product design.

5 TEST SETUP PHOTOS OF THE EUT

Photos of the test setup are available in the original document.

6 PHOTOS OF THE EUT

Photos of the EUT are available in the original document.