MPE 2

FCC ID: RI7UC864G

RF Exposure Info

Download: PDF
FCCID_944565

Test Report No.: NK08R101 17. MAXIMUM PERMISSIBLE EXPOSURE RF Exposure Limit According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the Environmental of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency Electric Field Magnetic Field Power Density Averaging Time Range(MHz) Strength(V/m) Strength(A/m) (mW/cm 2 ) (Minutes) (A) Limits for occupational / Contral Exposure 30 - 300 61.4 0.163 1 6 300 - 1500 … … F/300 6 1500 - 100000 … … 5 6 (B) Limits for General Population / Uncontrolled Exposure 30 - 300 27.5 0.073 0.2 30 300 - 1500 … … F/1500 30 1500 - 100000 … … 1 30 F = Frequency (MHz) Fries formula Fries transmission formula : Pd = (Pout * G) / (4 * π* r²) r = √((Pout * G) / 4 * π* Pd)) Where Pd = Power density in ㎽/㎠ Pout = Output power to antenna in ㎽ G = Gain of antenna in linear scale π= 3.1416 r = Distance between observation point center of the radiator in cm Pd is the limit of MPE, F/1500(GSM850 and WCDMA Band V) or 1 ㎽/㎠(PCS1900 and WCDMA Band II). If we know the Maximum Gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Telit Communications S.p.A. Page 78 of 86 FCC ID :RI7UC864G

Test Report No.: NK08R101 RF Exposure Distance GSM 850 O ut put O ut put R F E xpo sure Cha nne l Fre quen cy P ow e r t o P ow e r t o Ant enn a G a in Dis tan ce An ten na An ten na (M H z) ( dB m ) ( mW ) ( Num e ric) (cm ) 12 8 82 4.2 32 .1 3 1 633 0 .52 1 1.14 19 0 83 6.6 32 .1 1 1 626 0 .52 1 1.03 25 1 84 8.8 32 .0 1 1 589 0 .52 1 0.83 PCS 1900 O utp ut O u tpu t R F Ex p os u re C h a nn e l Fr e qu e nc y Po w e r to Po w e r to A nte n na G a in D is ta nc e An te nn a A n ten n a (M H z) (d B m ) (mW ) (N u me ric ) (cm ) 512 1 8 50 .2 2 9 .0 7 8 07 0 .6 9 6 .6 7 661 1 8 80 .0 2 9 .1 3 8 18 0 .6 9 6 .7 1 810 1 9 09 .8 2 8 .9 8 7 91 0 .6 9 6 .6 0 WCDMA Band V O utp ut O u tpu t R F Ex p os u re C h a nn e l Fr e qu e nc y Po w e r to Po w e r to A nte n na G a in D is ta nc e An te nn a A n ten n a (M H z) (d B m ) (mW ) (N u me ric ) (cm ) 4357 8 26 .4 2 3 .2 5 2 11 0 .5 2 4 .0 0 4408 8 36 .6 2 2 .9 8 1 99 0 .5 2 3 .8 6 4458 8 46 .6 2 3 .2 4 2 11 0 .5 2 3 .9 5 Telit Communications S.p.A. Page 79 of 86 FCC ID :RI7UC864G

Test Report No.: NK08R101 WCDMA Band II O utp ut O u tpu t R F Ex p os u re C h a nn e l Fr e qu e nc y Po w e r to Po w e r to A nte n na G a in D is ta nc e An te nn a A n ten n a (M H z) (d B m ) (mW ) (N u me ric ) (cm ) 9262 1 85 2 .4 2 3 .4 3 2 20 0 .6 9 3 .4 8 9400 1 8 80 .0 2 3 .1 4 2 06 0 .6 9 3 .3 7 9538 1 90 7 .6 2 3 .0 0 2 00 0 .6 9 3 .3 1 MPE Safe Distance: 11.14 cm Telit Communications S.p.A. Page 80 of 86 FCC ID :RI7UC864G


Document Created: 2008-05-14 15:03:22
Document Modified: 2008-05-14 15:03:22
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC