RF Exposure

FCC ID: N7TAC320T

RF Exposure Info

Download: PDF
FCCID_4215824

                            RF Exposure report

The equipment under test (EUT) is a Baby Monitor - Baby Unit with 2.4GHz
wireless control functions. The EUT is powered by DC5V via micro USB port
which can be connected to adapter with 100-240VAC. For more detail
information pls. refer to the user manual.

2.4GHz wireless control function operates in 2414-2468MHz. There are total
19 channels.

Modulation Type: GFSK
Antenna Type: Integral antenna
Antenna Gain: 0dBi
The nominal radiated output power (e.i.r.p) specified: 9dBm (Tolerance: +/-2dB)
The nominal conducted output power specified: 9dBm (Tolerance: +/-2dB)

The maximum radiated emission for the EUT is 106.2dBμV/m at 3m in the
frequency 2.414GHz = [(FS*D) ^2 / 30] mW
= 10.97dBm which is within the production variation

The minimum radiated emission for the EUT is 103.4dBμV/m for at 3m in the
frequency 2.468GHz = [(FS*D) ^2 / 30] mW
= 8.17dBm which is within the production variation

According to FCC Part 2.1091, this unlicensed transmitting devices is
categorically excluded from routine environmental evaluation for RF exposure
prior to equipment authorization or use.

For Maximum Permissible Exposure (MPE) evaluation of the product, the
maximum power density at 20 cm from this transmitter shall be less than the
General Population / Uncontrolled MPE limit in FCC Part 1.1310.

The maximum EIRP= 11.0Bm=12.6mW

From above data, the exposed power density at a distance (R) of 20cm from
the center of radiation of the antenna can be calculated according to OET 65
as follow:
= PG/4πR^2
= EIRP/4πR^2
= 12.6mW/ 4πR^2
= 0.0025 mW/cm^2




FCC ID: N7TAC320T


The MPE limit is 1.0 mW/cm^2 for general population and uncontrolled
exposure in the 2.4GHz frequency range according to FCC Part 1.1310. As the
measured power density at 20cm from the transmitter is lower than the MPE
limit, the compliance to the MPE limit can be ensured by indicating the
minimum 20cm separation between the transmitter's radiating structure and
body of the user or nearby persons.

The following RF exposure statement or similar sentence is proposed to be
included in the user manual:

“FCC RF Radiation Exposure Statement Caution: This Transmitter must
be installed to provide a separation distance of at least 20 cm from all
persons.”




FCC ID: N7TAC320T



Document Created: 2019-03-04 13:51:19
Document Modified: 2019-03-04 13:51:19

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC