RF Exposure

FCC ID: W9Z-ARANETTC

RF Exposure Info

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FCCID_4449164

Model: TDSPT1U4 Test Number: 190529 MPE Calculator RF Exposure uses EIRP for calculation. EIRP is based on TX power added to the antenna gain in dBi. dBi = dB gain compared to an isotropic radiator. S = power density in mW/cm^2 Transmitter maximum Output power operating at 100% (Watts) 0.0310 Percent Duty Cycle operation (%) 100.0 Antenna Gain (dBi) 1 Output Power for 100% duty Cycle operation (Watts) 0.0310 Antenna Gain (Numeric) 1.26 Tx Frequency (MHz) 917.3 Calcualtion power (Watts) 0.0310 dBd + 2.17 = dBi dBi to dBd 2.2 Antenna Gain (dBd) -1.17 Cable Loss (dB) 0.0 Adjusted Power (dBm) 14.92 Antenna minus cable (dBi) 1.00 Calculated ERP (mw) 23.714 EIRP = Po(dBM) + Gain (dB) Calculated EIRP (mw) 39.084 Radiated (EIRP) dBm 15.920 ERP = EIRP - 2.17 dB EIRP Radiated (ERP) dBm 13.750 Power density (S) mW/cm2 = ------- 4 p r^2 r (cm) EIRP (mW) Occupational Limit FCC radio frequency radiation exposure limits per 1.1310 f/1500 mW/cm2 Frequency (MHz) Occupational Limit (mW/cm2 ) Public Limit (mW/cm2 ) 31 W/m2 30-300 1 0.2 General Public Limit 300-1,500 f/300 f/1500 f/1500 mW/cm2 1,500-10,000 5 1 6 W/m2 Occupational Limit 0.6455ƒ0.5 W/m2 IC radio frequency radiation exposure limits per RSS-102 24.3 W/m2 Frequency (MHz) Occupational Limit (W/m2 ) Public Limit (W/m2 ) 0.5 General Public Limit 100-6,000 0.6455ƒ 0.02619ƒ0.6834 W/m2 6,000-15,000 50 2.8 W/m2 48-300 1.291 300-6,000 0.02619ƒ0.6834 6,000-15,000 50 10 f = Transmit Frequecny (MHz) f (MHz) = 917.3 PT = Power Input to Antenna (mW) PT (mW) = 31.0456 Duty cycle (percentage of operation) %= 100.0 PA = Adjusted Power due to Duty cycle or Cable Loss (mW) PA (mW) = 31.05 GN = Numeric Gain of the Antenna GN (numeric) = 1.26 2 2 S20 = Power Density of device at 20cm (W/m2 ) S20 =(PAGN)/(4πR20 ) S20 (W/m ) = 0.08 SL = Power Density Limit (W/m )2 SL (W/m2 )= 2.772 RC = Minimum distance to the Radiating Element for Compliance (cm) RC=√(P AGN/4πS ) L RC (cm) = 3.3 2 2 SC = Power Density of the device at the Compliance Distance RC (W/m2 ) SC=(PAGN)/(4πRC) SC (W/m ) = 2.77 R20 = 20cm R20= 20 For Complaince with Canada General Population Limits, User Manual must indicate a minimum seperation distance of 3.3 cm Rogers Labs, Inc. SAF Tehnika AS S/N’s: 315920 000099 / 315920 000100 4405 W. 259th Terrace Model: T Compact (m/n: TDSPT1U4) FCC ID: W9Z-ARANETTC Louisburg, KS 66053 Test: 190529 IC: 8855A-ARANETTC Phone/Fax: (913) 837-3214 Test to: CFR47 15C, RSS-Gen RSS-247 Date: September 11, 2019 Revision 1 File: TDSPT1U4 RFExp Page 1 of 1


Document Created: 2019-09-11 12:14:33
Document Modified: 2019-09-11 12:14:33
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