MPE Test Report: Okai EA10A Electric Scooter
Report No.: OKA-ESH-P21050486B-4
FCC ID: 2AYF8-YBEA10A
Product: Electric Scooter
Model: EA10A
Received Date: May.25, 2021
Test Date: May.25 to Jul.11.2021
Issued Date: Jul.12.2021
Applicant: Zhejiang Okai Vehicle Co., Ltd.
Applicant Address: No. 9, Xinxing Road, Xinbi Town, Jinyun County, Zhejiang, China
Manufacturer: Zhejiang Okai Vehicle Co., Ltd.
Manufacturer Address: No. 9, Xinxing Road, Xinbi Town, Jinyun County, Zhejiang, China
Issued By: BUREAU VERITAS ADT (Shanghai) Corporation
Lab Address: No. 829, Xinzhuan Road, Shanghai, P.R.China (201612)
Certificate of Conformity
Product: Electric Scooter
Brand: OKAI
Model: EA10A
Applicant: Zhejiang Okai Vehicle Co., Ltd.
Test Date: May.25 to Jul.11.2021
Standards: FCC Part 2 (Section 2.1091), KDB 447498 D01 General RF Exposure Guidance v06, IEEE C95.1-1992
The above equipment has been tested by BUREAU VERITAS ADT (Shanghai) Corporation, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample's EMC characteristics under the conditions specified in this report.
Prepared by: Yuan ZHANG, Project Engineer | Date: Jul.12.2021
Approved by: Daniel SUN, EMC Lab Manager | Date: Jul.12.2021
General Information
BLE
| Product | Electric Scooter |
| Brand | OKAI |
| Test Model | EA10A |
| Power Rating | Powered by battery; AC Adaptor for battery: INPUT: 100-240Vac,50/60Hz 2A OUTPUT: 42Vdc,2A |
| Modulation Type | GFSK |
| Modulation Technology | Bluetooth Low Energy 4.2&5.0 |
| Operating Frequency | 2402MHz ~ 2480MHz |
| Number of Channel | 40 |
| Antenna Type | PCB Antenna |
| Antenna Connector | -- |
| Antenna Gain | Ant:3.32dBi |
Note: 1. For more details, please refer to the User's manual of the EUT.
NFC
| Product | Electric Scooter |
| Brand | OKAI |
| Test Model | EA10A |
| Power Rating | Powered by battery; AC Adaptor for battery: INPUT: 100-240Vac,50/60Hz 2A OUTPUT: 42Vdc,2A |
| Modulation Type | ASK |
| Modulation Technology | NFC |
| Operating Frequency | 13.56MHz |
| Number of Channel | 1 |
| Antenna Type | Coil Antenna |
| Antenna Connector | -- |
Note: 1. For more details, please refer to the User's manual of the EUT.
RF Exposure
Limits For Maximum Permissible Exposure (MPE)
| Frequency Range (MHz) | Electric Field Strength (V/m) | Magnetic Field Strength (A/m) | Power Density (mW/cm²) | Average Time (minutes) |
|---|---|---|---|---|
| 300-1,500 | - | - | F/1500 | 30 |
| 1,500-100,000 | - | - | 1.0 | 30 |
F = Frequency in MHz
MPE Calculation Formula
Power density (S) is calculated according to the formula:
S = PG / (4πR²)
Where:
- S = power density in mW/cm²
- P = transmit power in mW
- G = numeric gain of transmit antenna (numeric gain=Log-1(dB antenna gain/10))
- R = distance (cm)
Device Classification
The antenna of this product, under normal use condition, is at least 20cm from the body of the user. So the device is classified as Mobile Device.
Calculation Result of Maximum Permissible Exposure
| Frequency Band (MHz) | Max. Conducted output power(dBm) | Antenna Gain (dBi) | Distance (cm) | Power Density (mW/cm²) | Limit (mW/cm²) |
|---|---|---|---|---|---|
| 2402-2480 | 2.68 | 3.32 | 20 | 0.000792411 | 1 |
Conclusion
The calculation result of MPE is less than the limit.
