RF expsoure evaluation

FCC ID: X4YLNX301

RF Exposure Info

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FCCID_3781191

FCC F RF EXP POSUR RE EVA ALUAT ATION R REPO ORT FCC ID: X4YLLNX301 1 Project No. : 1801 1C251 Equipm ment : Lynxx301 WIRELESS‐N / MINI 2.0USB ADAPTER Model : AULLUB305U4 4 Applicaant : NEX XXT SOLUTTIONS Address : 3505 5 N.W 107 7TH AVE. MIAMI FLLORIDA 33 3178 U.S.A A Exposu ure catego ory : Gen neral popu ulation/un ncontrolle ed environ nment EUT Typ pe: : Engiineer Sam mple Device Type : Porttable Deviice

1. Evaluatio on Method d Accordinng to KDB447 7498 D01 Gen neral RF Expo osure Guidancce v06Section n 4.3.1 Standalone SAR test exclusionn considerations: “Unless specifically required r he published RF exposure KDB procedu by th ures, standaloone 1‐g head or body and 10‐g extremity SAR evaluaation for general population exposure conditions, by measu urement or nu umerical simu ulation, is not required wh hen the correesponding SAAR Test Exclusionn Threshold ccondition, listted below, is satisfied. Theese test exclu usion conditioons are basedd on source‐bbased time‐avveraged maxiimum conduccted output p power of the RF channel requiring evalluation, adjustedd for tune‐up tolerance, an nd the minimmum test sepaaration distan nce required for the expossure conditions. The minim mum test sep paration distaance is determ mined by the smallest disttance from th he antenna and radiating structures or o outer surfaace of the deevice, according to the hosst form factor, exposuree conditions anda platform m requirements, to any parrt of the bodyy or extremity of a user orr bystandeer of section 4.1). To qualify for SAR teest exclusion, the test sepaaration distan nces applied must be fully explained e andd justified by the operatin ng configuratiions and expo osure conditiions of the transmittter and appliicable host pllatform requiirements, typ pically in the SAR S measureement or SAR R analysis report, accorrding to the required r publlished RF exp posure KDB prrocedures. W When no other RF exposuree testing or reeporting is re equired, a staatement of justification an nd compliancee must be inccluded in the eq quipment app proval, in lieu u of the SAR report, r to quaalify for the SAR test exclu usion. When requiredd, the device specific s conditions describbed in the oth her published d RF exposuree KDB proceddures must be satisfied befo ore applying these SAR teest exclusion provisions; fo or example, h handheld PTTT two‐ way radiios, handsets, laptops & taablets etc. “ [(max. poower of chan nnel, includingg tune‐up tollerance, mW))/ (min. test separa s on distance, mm)]] · [√f (GHz)] ≤ 3.0 for 1‐g SA AR and ≤ 7.5 for 10‐g extremity SAR, where: w • f (GHz)) is the RF chaannel transm mit frequency in GHz • Power and distancee are rounded d to the nearest mW and mm before calculation • The ressult is roundeed to one deccimal place fo or comparison • 3.0 andd 7.5 are refeerred to as the numeric thresholds in th he step 2 below The test exclusions arre applicable only when th he minimum test separatiion distance iis ≤ 50 mm an nd for transmisssion frequen ncies between n 100 MHz annd 6 GHz. Wh hen the minimmum test sep paration distaance is < 5 mm, a distance of 5 mm accordiing to f) in section 4.1 is applied to determine SAR ttest exclusion n. For frequ uencies below w 100 MHz, thet following may be conssidered for SA AR test exclussion (also illustrated in Appenndix C): 1) For teest separatio on distances > 50 mm and < 200 mm, th he power thrreshold at thee correesponding tesst separation distance at 1100 MHz in sttep b) is multtiplied by [1 + log(1 100/f(MHz))] 2) For teest separatio on distances ≤ 50 mm, thee power thresshold determined by the equaation in c) 1) for f 50 mm an b ½ nd 100 MHz iss multiplied by 3) SAR measuremen m nt proceduress are not estaablished below w 100 MHz. When SA AR test exclussion cannot beb applied, a KDB inquiry is i required to o determine SSAR evaluatio on requirem ments for anyy SAR test ressults below 1000 MHz to bee acceptable. When an n antenna qualifies for thee standalone SAR test exclusion of 4.3.1 and also traansmits simultan neously with other o antennnas, the standdalone SAR vaalue must be estimated acccording to th he followingg to determinne the simultaneous transsmission SAR test exclusioon criteria: 1) [(maxx. power of channel, c inclu uding tune‐up p tolerance, mW) m / (min. ttest separatioon distance, mm)]·[√f(GHz)/x] W//kg, for test sseparation distances ≤ 50 mm;

Where x = 7.5 for 1‐g SAR and x = 18.75 forr 10‐g SAR. 2) 0.4 W/kg W for 1‐g SAR S and 1.0 W/kg W for 10‐gg SAR, when the t test separation distance is > 50 mm. m When on ne of the follo owing test exxclusion condditions is satissfied for all co ombinations of simultaneo ous transmisssion configurrations, furth her equipmen nt approval iss not required d to incorporaate transmittter moduless in host devicces that operrate in the miixed mobile and a portable host platform m exposure conditions. The granttee is responssible for docuumenting thiss according to o Class I perm missive changge requirem ments. Antennas that quallify for standaalone SAR tesst exclusion must m apply th he estimated standalo one SAR to deetermine simu ultaneous traansmission teest exclusion. ∑ of (the high a) The [∑ hest measureed or estimatted SAR for eaach standalone antenna usted for maxximum tune‐up tolerance) / 1.6 W/kg] + [∑ of MPEE ratios] configguration, adju is ≤ 1.0. o all simultaneously transsmitting ante ocation separration ratios of b) The SAR to peak lo enna a all ≤ 0.04,, and the [∑ of pairs operating in portable devvice exposuree conditions are o MPE ratioss] is ≤ 1.0. 2. Refer Evaaluation Method M ANSI C95 5.1–1999: IEEEE Standard for f Safety Levvels with Resp pect to Humaan Exposure tto Radio Freq quency Electrom magnetic Field ds, 3 kHz to 300 GHz. FCC KDB B publication 447498 4 D01 General G RF Exxposure Guid dance v06: Mobile and Portable Device es RF Exposuree Proceduress and Equipment Authorizaation Policiess. 310: Radiofreequency radiaation exposure limits. FCC CFR 47 part1 1.13 093: Radiofreequency radiaation exposure evaluation FCC CFR 47 part2 2.10 n: portable deevices 3. Conducte ed Power Results 3.1 Test Se etup 3.2 Test Eq quipment Item Kind o of Equipmennt Manufaacturer TType No. Serial No. Calibratted until 1 Powwer Meter ANRIITSU M ML2495A 1128009 Aug.200, 2018 2 Pulse Power Senso or ANRIITSU M MA2411B 1027500 Aug.200, 2018

Remark: all calibration period p of equ uipment list iss one year. 3.3 Test Prrocedure a. The EUT was directly connected too the power meter and an ntenna outpu ut port as sho ow in the block diagram Test Setup. UT work at du b. Setup EU uty cycle morre than 98%; c. Read powwer sensor values in RMSS dector; 3.4 Measu ure Results Frequency Average Conducted O Output Powe er (dBm) M Mode Channel (MHz) Anteenna 1 Anteenna 2 1 2412 9 9.18 ≤99.18 IEEE 802.11b 6 2437 9 9.29 ≤9 9.29‐ 11 2462 9 9.31 ≤99.31 1 2412 9 9.41 ≤99.41 IEEE 802.11g 6 2437 9 9.26 ≤99.26 11 2462 9 9.23 ≤99.23 1 2412 6 6.32 6..21 IEEE 802.11n 6 2437 6 6.51 6..44 H HT20 11 2462 6 6.22 6..18 3 2422 6 6.20 6..54 IEEE 802.11n 6 2437 6 6.32 6..43 H HT40 9 2452 6 6.37 6..14 4. Manufactturing Tolerance Maximum Avverage poweer declared b M by Manufacturer Mode Antennaa 1 Antenna 2 IEEE 80 02.11b ≤ 9.50 0 ≤ 9.50 IEEE 80 02.11g ≤ 9.50 0 ≤ 9.50 IEEE 802.1 11n HT20 ≤ 6.60 0 ≤ 6.60 IEEE 802.1 11n HT40 ≤ 6.60 0 ≤ 6.60 5. Antenna Information Maximum Peak P Gain Anteenna Braand Mo odel Name Antenna TType Connector (dBi) 1 N/A N N/A Internal N/A 1.00 2 N N/A N/A Internal N/A 1.00

6. Evaluatio on Results 6.1 Standaalone Antenna 1 Antennna RF o output powe er SA AR Test SAR Test Baand/Mode f (GHz) Distance Exxclusion dBm mW W Exclusion (mm)) Threshold IEEEE 802.11b 2.50 5 9.5 50 8.9125 2..7< 3.0 Yes IEEEE 802.11g 2.50 5 9.5 50 8.9125 2.8 < 3.0 Yes IEEE 802.11n 8 HT20 0 2.50 5 6.6 60 4.570 09 1..4< 3.0 Yes IEEE 802.11n 8 HT40 0 2.50 5 6.6 60 4.570 09 1..4< 3.0 Yes Antenna 2 Antennna RF o output powe er SA AR Test SAR Test Baand/Mode f (GHz) Distance Exxclusion dBm mW W Exclusion (mm)) Threshold IEEEE 802.11b 2.50 5 9.5 50 8.9125 2.8 < 3.0 Yes IEEEE 802.11g 2.50 5 9.5 50 8.9125 2.8 < 3.0 Yes IEEE 802.11n 8 HT20 0 2.50 5 6.6 60 4.570 09 1.4 < 3.0 Yes IEEE 802.11n 8 HT40 0 2.50 5 6.6 60 4.570 09 1.4 < 3.0 Yes Remark:: 1. Outpuut power inclluding tune up u tolerance;; 2. When n the minimuum test separration distan nce is < 5 mm m, a distance of 5 mm acccording to f) in section 4.1 is ap pplied to deteermine SAR test t exclusion n. 6.2 Simultaneous Traansmission for f SAR Excclusion The sample support oone WLAN modular and 2T2R MIMO antennas (onlyy IEEE 802.11 1n support MIMO), M need considerr simultaneou us transmissio on; 6.2.1 Estimation Standalone S S SAR Antenna 1 Anten nna Distance RF outp put power Estimation SAR B Band/Mode f (GHzz) (mm) dBm mW Values (W/kg) IEEE 802.11n HT20 2.50 0 5 6.60 4.5709 0.19 927 IEEE 802.11n HT4 40 2.50 0 5 6.60 4.5709 0.19 927 Antenna 2 Anten nna Distance RF outp put power Estimation SAR B Band/Mode f (GHzz) (mm) dBm mW Values (W/kg) IEEE 802.11n HT20 2.50 0 5 6.60 4.5709 0.19 927 IEEE 802.11n HT4 40 2.50 0 5 6.60 4.5709 0.19 927

6.2.2 Esttimation Simmultaneous Transmission T n SAR ∑ of (thee highest meaasured or estiimated SARWLAN antenna 1+SA ARWLAN antenna 2)/1.6 = (0 0.1927+0.192 27)/1.6 = 0.2 < 1.0; 1 7. Conclusio on The meaasurement results comply with the FCC C Limit per 47 7 CFR 2.1093 for the uncon ntrolled RF Exxposure and SAR Exclusion Thresh hold per KDB 447498 4 v06.


Document Created: 2018-03-14 17:21:52
Document Modified: 2018-03-14 17:21:52
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