Analysis Report

FCC ID: SIP-5211R

RF Exposure Info

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FCCID_3885582

Analysis Report

The Equipment Under Test (EUT), is a portable 2.4GHz Transceiver (Controller Unit) for a
RC car. The operation frequency range is between 2403.6MHz and 2471.6MHz with the
following 35 Channel used:

Channel Frequency (MHz)
1 2403.6
2 2405.6
3 2407.6
4 2409.6
5 2411.6
6 2413.6
7 2415.6
8 2417.6
9 2419.6
10 2421.6
11 2423.6
12 2425.6
13 2427.6
14 2429.6
15 2431.6
16 2433.6
17 2435.6
18 2437.6
19 2439.6
20 2441.6
21 2443.6
22 2445.6
23 2447.6
24 2449.6
25 2451.6
26 2453.6
27 2455.6
28 2457.6
29 2459.6
30 2461.6
31 2463.6
32 2465.6
33 2467.6
34 2469.6
35 2471.6

The EUT is powered by 2 x 1.5V AAA batteries.
After switch on the EUT, the car will be moved forward or backward and turned left and
right based on the switches pressed in the controller.

Antenna Type: Internal antenna
Antenna Gain: 0dBi
Nominal rated field strength is 88.2 dBμV/m at 3m
Maximum allowed production tolerance: +/- 3dB

According to the KDB 447498:

Based on the Maximum allowed field strength of production tolerance was 91.2 dBμV/m
at 3m in frequency 2.4716GHz, thus;

The EIRP = [(FS*D) ^2*1000 / 30] = 0.40mW

Conducted power = Radiated Power (EIRP) – Antenna Gain
So;

Conducted Power =0.40mW.

The SAR Exclusion Threshold Level:
= 3.0 * (min. test separation distance, mm) / sqrt(freq. in GHz)
= 3.0 * 5 / sqrt (2.4716) mW
= 9.54 mW

Since the above conducted output power is well below the SAR Exclusion threshold
level, so the EUT is considered to comply with SAR requirement without testing.

Document Created: 2018-06-13 09:25:54
Document Modified: 2018-06-13 09:25:54

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