Shenzhen HTT Technology Co., Ltd. TEST REPORT

Report Reference No.: HTT202311437F02

FCC ID: 2A8PV-M2PRO

Compiled by: File administrators

Supervised by: Project Engineer

Approved by: RF Manager

Date of issue: Nov. 27, 2023

Testing Laboratory Name: Shenzhen HTT Technology Co.,Ltd.

Address: 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China

Applicant's name: Shenzhen Information Infinity Co.,Ltd

Address: 1st Floor, Building B, Clean Sunshine Park, No.15, Keji North 2nd Road, Songpingshan Community, Xili street, Nanshan District, Shenzhen, China

Standard: FCC Rules and Regulations Part PART 15.249

Test item description: WIRELESS VERTICAL MOUSE

Trade Mark: MONSTER®

Manufacturer: Shenzhen Information Infinity Co.,Ltd

Model/Type reference: Monster Airmars M2 Pro

Listed Models: N/A

Modulation: GFSK

Frequency: 2405-2470MHz

Ratings: DC 3.7V From Battery and DC 5V From External Circuit

Result: PASS

This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HTT Technology Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HTT Technology Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.

General Remarks

• Date of receipt of test sample: Nov. 21, 2023
• Testing commenced on: Nov. 21, 2023
• Testing concluded on: Nov. 27, 2023

Product Description

• Name of EUT: WIRELESS VERTICAL MOUSE
• Model Number: Monster Airmars M2 Pro
• List Model: N/A
• Power Rating: DC 3.7V From Battery and DC 5V From External Circuit
• Adapter Information (Auxiliary test provided by the lab): Mode: GS-0500200, Input: AC100-240V, 50/60Hz, 0.3A max, Output: DC 5V, 2A
• Sample ID: HTT202308305-1#(Engineer sample), HTT202308305-2#(Normal sample)
• Operation frequency: 2405-2470MHz
• Modulation: GFSK
• Antenna Type: PCB antenna
• Antenna Gain: 4.43 dBi

Equipment Under Test

Power supply system utilised:

• Power supply voltage: 230V / 50 Hz, 120V / 60Hz, 12 V DC, 24 V DC, DC 3.7V From Battery

Short description of the Equipment under Test (EUT)

This is a WIRELESS VERTICAL MOUSE. For more details, refer to the user's manual of the EUT.

EUT operation mode

The Applicant used a key to control the EUT for staying in continuous transmitting and receiving mode for testing. There are 8 channels provided to the EUT. Channel Low, Mid, and High were selected for testing.

Test frequency:

Block Diagram of Test Setup

Diagram shows the Equipment Under Test (EUT) and its Battery.

Modifications

No modifications were implemented to meet testing criteria.

Address of the test laboratory

Shenzhen HTT Technology Co.,Ltd. 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China.

Test Facility

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

• FCC-Registration No.: 779513 Designation Number: CN1319. Shenzhen HTT 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.: 6435.01. Shenzhen HTT 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.

Environmental conditions

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

• Radiated Emission: Temperature: 23 °C, Humidity: 48 %, Atmospheric pressure: 950-1050mbar
• AC Main Conducted testing: Temperature: 24 °C, Humidity: 45 %, Atmospheric pressure: 950-1050mbar
• Conducted testing: Temperature: 24 °C, Humidity: 45 %, Atmospheric pressure: 950-1050mbar

The tests were performed according to following standards:

• FCC Rules Part 15.249: Operation within the bands 902 - 928 MHz, 2400 - 2483.5 MHz, 5725 - 5875 MHz, and 24.0 - 24.25 GHz.
• ANSI C63.10:2013: American National Standard for Testing Unlicensed Wireless Devices
• ANSI C63.4:2014: American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40GHz

Statement of the measurement uncertainty

• Conducted Emission Expanded Uncertainty: 2.66dB, k=2
• Radiated emission expanded uncertainty(9kHz-30MHz): 3.08dB, k=2
• Radiated emission expanded uncertainty(30MHz-1000MHz): 3.45dB, k=2
• Radiated emission expanded uncertainty(Above 1GHz): 4.06dB, k=2

TEST CONFIGURATION

Diagram shows the Equipment Under Test (EUT) placed on a table within a shielded room. A Line Impedance Stabilization Network (LISN) is connected to the EUT and to a Test Receiver. The LISN is grounded.

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.
2. Support equipment, if needed, was placed as per ANSI C63.10.
3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10.
4. If a EUT received DC power from the USB Port of Notebook PC, the PC's adapter received 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.

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: Both high and low voltages have been tested to show only the worst low voltage test data.

Measurement data: Line:

Measurement data: Neutral:

Notes: 1. An initial pre-scan was performed on the line and neutral lines with peak detector. 2. Quasi-Peak and Average measurement were performed at the frequencies with maximized peak emission. 3. Final Level =Receiver Read level + LISN Factor + Cable Los

TEST CONFIGURATION

Frequency range 9 KHz – 30MHz

Diagram shows the EUT on a turntable, connected to a Loop antenna. The antenna is 3 meters away from the EUT. A Test Receiver is connected to the antenna. The setup is on a ground plane.

Frequency range 30MHz – 1000MHz

Diagram shows the EUT on a turntable, connected to a Test Receiver via a coaxial cable. The antenna is 3 meters away from the EUT, and its height can be adjusted from 1m to 4m. The setup is on a ground plane.

Frequency range above 1GHz-25GHz

Diagram shows the EUT on a turntable within a Semi-Anechoic Chamber. The antenna is 3 meters away from the EUT, and its height can be adjusted from 1m to 4m. A Measurement Instrument and Controller are connected. The setup is on a ground plane.

TEST PROCEDURE

1. The EUT was placed on a turn table which is 0.8m above ground plane when testing frequency range 9 KHz –25GHz.
2. Maximum procedure was performed by raising the receiving antenna from 1m to 4m and rotating the turn table from 0°C to 360°C 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. The EUT minimum operation frequency was 26MHz and maximum operation frequency was 1910MHz. So radiated emission test frequency band from 9KHz to 25GHz.
6. The distance between test antenna and EUT as following table states:

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, Transd=AF +CL-AG, CL = Cable Attenuation Factor (Cable Loss), AG = Amplifier Gain

RADIATION LIMIT

According 15.249, the field strength of emissions from intentional radiators operated within 2400MHz-2483.5 MHz shall not exceed 94dBμV/m (50mV/m):

FCC PART 15.249(d) Emissions radiated outside of 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 radiated emission limits in §15.209, whichever is the lesser attenuation. In addition, radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated emission limits specified in §15.209(a)

Radiated emission limits

TEST RESULTS

For 30MHz-1GHz

Horizontal

Vertical

Final Level =Receiver Read level + Correct Factor

For 1GHz to 25GHz

Remark: (1) Data of measurement within this frequency range shown "---" in the table above means the reading of emissions are attenuated more than 20dB below the permissible limits or the field strength is too small to be measured. (2) When the test results of Peak Detected below the limits of Average Detected, the Average Detected is not need completed.

Band Edges Test (Radiated)

Operation Mode: GFSK

TEST CONFIGURATION

Diagram shows the EUT connected to a spectrum analyzer via an attenuator.

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 30KHz RBW and 300KHz VBW. The 20dB bandwidth is defined as the total spectrum the power of which is higher than peak power minus 20dB.

LIMIT

N/A

TEST RESULTS

Note: 1.The test results including the cable lose.

Spectrum Analyzer Screenshots:

GFSK - Low Channel: Displays a spectrum analyzer plot showing the occupied bandwidth measurement for the low channel. The center frequency is 2.405 GHz. The occupied bandwidth is 68.274 kHz, and the x dB bandwidth is 79.25 kHz.

GFSK - Mid Channel: Displays a spectrum analyzer plot showing the occupied bandwidth measurement for the mid channel. The center frequency is 2.43 GHz. The occupied bandwidth is 68.590 kHz, and the x dB bandwidth is 79.77 kHz.

GFSK - High Channel: Displays a spectrum analyzer plot showing the occupied bandwidth measurement for the high channel. The center frequency is 2.47 GHz. The occupied bandwidth is 68.350 kHz, and the x dB bandwidth is 79.39 kHz.

Standard Applicable

For intentional device, according to FCC 47 CFR Section 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. And according to FCC 47 CFR Section 15.247 (c), if transmitting antennas of directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi.

Antenna Information

The maximum gain of antenna was 4.43 dBi.

Remark: The antenna gain is provided by the customer. If the data provided by the customer is not accurate, Shenzhen HTT Technology Co., Ltd. does not assume any responsibility.

Reference to the appendix I for details.

Reference to the appendix II for details.