RF Exposure Evaluation Report
Report No.: FA592427-02
Product Details
Equipment: UniFi CLOUD KEY GEN2
Brand Name: UBIQUITI
Model No.: UCK-G2
FCC ID: SWX-UCKG2
Standard: 47 CFR Part 2.1091
Applicant/Manufacturer: Ubiquiti Networks, Inc.
685 Third Avenue, 27th Floor New York, New York 10017 USA
Test Summary: The product sample was received on Jan. 16, 2018 and completely tested on Jan. 17, 2018. Sporton declares that the tested sample has been evaluated in accordance with 47 CFR Part 2.1091, and passed the limit.
Report Approval: Kevin Liang / Assistant Manager [Signature]
Accreditations: [lac-MRA Logo] [TAF Testing Laboratory 1190 Logo]
Revision History
| REPORT NO. | VERSION | DESCRIPTION | ISSUED DATE |
|---|---|---|---|
| FA592427-02 | Rev. 01 | Initial issue of report | Feb. 13, 2018 |
General Description
EUT General Information
| Evaluation Mode | Frequency Range (MHz) | Operating Frequency (MHz) | Modulation Type |
|---|---|---|---|
| Bluetooth | 2400-2483.5 | 2402-2480 | LE: DSSS (GFSK) |
Testing Location
Location 1: HWA YA
| Site | Address | TEL | FAX | Test Site Designation No. |
|---|---|---|---|---|
| HWA YA | No. 52, Huaya 1st Rd., Guishan Dist., Taoyuan City, Taiwan (R.O.C.) | 886-3-327-3456 | 886-3-327-0973 | TW1190 with FCC |
Location 2: JHUBEI
| Site | Address | TEL | FAX | Test Site Designation No. |
|---|---|---|---|---|
| JHUBEI | No.8, Ln. 724, Bo'ai St., Zhubei City, Hsinchu County, Taiwan (R.O.C.) | 886-3-656-9065 | 886-3-656-9085 | TW0006 with FCC |
Maximum Permissible Exposure (MPE)
Limit of Maximum Permissible Exposure
(A) Limits for Occupational / Controlled Exposure
| Frequency Range (MHz) | Electric Field Strength (E) (V/m) | Magnetic Field Strength (H) (A/m) | Power Density (S) (mW/cm²) | Averaging Time |E|²,|H|² or S (minutes) |
|---|---|---|---|---|
| 0.3-3.0 | 614 | 1.63 | (100)* | 6 |
| 3.0-30 | 1842/f | 4.89/f | (900 / f²)* | 6 |
| 30-300 | 61.4 | 0.163 | 1.0 | 6 |
| 300-1500 | - | - | F/300 | 6 |
| 1500-100,000 | - | - | 5 | 6 |
Note: f = frequency in MHz; *Plane-wave equivalent power density
(B) Limits for General Population / Uncontrolled Exposure
| Frequency Range (MHz) | Electric Field Strength (E) (V/m) | Magnetic Field Strength (H) (A/m) | Power Density (S) (mW/cm²) | Averaging Time |E|²,|H|² or S (minutes) |
|---|---|---|---|---|
| 0.3-1.34 | 614 | 1.63 | (100)* | 30 |
| 1.34-30 | 824/f | 2.19/f | (180/f²)* | 30 |
| 30-300 | 27.5 | 0.073 | 0.2 | 30 |
| 300-1500 | - | - | F/1500 | 30 |
| 1500-100,000 | - | - | 1.0 | 30 |
Note: f = frequency in MHz; *Plane-wave equivalent power density
MPE Calculation Method
The MPE was calculated at 20 cm to show compliance with the power density limit.
The following formula was used to calculate the Power Density:
E (V/m) = √(30 × P × G) / d
Where:
- E = Electric field (V/m)
- P = RF output power (W)
- G = EUT Antenna numeric gain (numeric)
- d = Separation distance between radiator and human body (m)
Power Density: Pd (W/m²) = E² / 377
The formula can be changed to:
Pd = (30 × P × G) / (377 × d²)
Calculated Result and Limit
Exposure Environment: General Population / Uncontrolled Exposure
| Mode | DG (dBi) | Power (dBm) | EIRP (dBm) | Tolerance (dB) | Tune-up EIRP (dBm) | Tune-up EIRP (W) | Distance (cm) | S (mW/cm²) | S Limit (mW/cm²) |
|---|---|---|---|---|---|---|---|---|---|
| 2.4G;BT-LE | 0.00 | 1.04 | 1.04 | 0.50 | 1.54 | 0.00143 | 20 | 0.00028 | 1.00000 |
