Analysis Report

FCC ID: BY35242-24RR

RF Exposure Info

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FCCID_3865356

INTERTEK TESTING SERVICES

RF Exposure
The equipment under test (EUT) is a R/C Car operating at 2.4G Band. The EUT
can be powered by DC6.0V (1 x 6.0V Rechargeable battery). For more detail
information pls. refer to the user manual.

Antenna Type: Integral antenna.
Antenna Gain: 0dBi.
The normal radiated output power (e.i.r.p) is: -16.0dBm (tolerance: +/- 3dB).
The normal conducted output power is -16.0dBm (tolerance: +/- 3dB).
Modulation Type: GFSK.

According to the KDB 447498:
The Maximum peak radiated emission for the EUT is 80.5dBµV/m at 3m in
the frequency 2480MHz
The EIRP = [(FS*D) ^2 / 30] mW = -14.73dBm
which is within the production variation.

The Minimum peak radiated emission for the EUT is 79.6dBµV/m at 3m in
the frequency 2402MHz
The EIRP = [(FS*D) ^2 / 30] mW = -15.63dBm
which is within the production variation.

The maximum conducted output power specified is -13dBm =0.05 mW
The source- based time-averaging conducted output power
= 0.05* Duty cycle mW <0.05 mW(Duty cycle <100%)

The SAR Exclusion Threshold Level:
= 3.0 * (min. test separation distance, mm) / sqrt(freq. in GHz)
= 3.0 * 5 / sqrt (2.480) mW
= 9.53 mW

Since the source-based time-averaging conducted output power is well
below the SAR low threshold level, so the EUT is considered to comply
with SAR requirement without testing.

The duty cycle is simply the on-time divided by the period:
The duration of one cycle = 15.1449ms
Effective period of the cycle = 2.6087ms
DC =2.6087ms / 15.1449ms =0.1722 or 17.22%

FCC ID: BY35242-24RR

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Document Created: 2018-05-03 13:47:49
Document Modified: 2018-05-03 13:47:49

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