RF Exposure

FCC ID: W9Z-ARANET4

RF Exposure Info

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FCCID_4420179

Summary: Standalone MPE Calculations and Summary 2 2 2 Band (MHZ) Tx Duty Cycle (%) Tx Frequeny (MHz) Power Total (mW) Antenna Gain (dBi) SL (W/m ) S20 (W/m ) RC (cm) SC (W/m ) 902-928 100 917 28 1 2.771 0.07 3.2 2.77 Band (MHZ) Tx Duty Cycle (%) Tx Frequeny (MHz) Power Total (mW) Antenna Gain (dBi) SL (W/m2) S20 (W/m2) RC (cm) SC (W/m2) 2400-2483.5 100 2402 4 5 5.351 0.03 1.4 5.35 Simlutaneous MPE Calculation Tx Frequeny (MHz) 917 2402 S20 (W/m2 ) 0.07 0.03 SL (W/m2 ) 2.771 5.351 Power Ratio (SL / S20 ) 0.025 0.005 Sum of Power Ratios at 20cm (0.025 + 0.005) 0.030 Requirement = Σ of MPE Ratio ≤ 1 Model: TDSPC0U3 Test Number: 190530 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) 0.0280 Antenna Gain (dBi) 1 Output Power for 100% duty Cycle operation (Watts) 0.0280 Antenna Gain (Numeric) 1.26 Calcualtion power Tx Frequency (MHz) 917 0.0280 dBd + 2.17 = dBi dBi to dBd 2.2 (Watts) Antenna Gain (dBd) -1.17 Cable Loss (dB) 0.0 Adjusted Power (dBm) 14.47 Antenna minus cable (dBi) 1.00 Calculated ERP (mw) 21.387 EIRP = Po(dBM) + Gain (dB) Calculated EIRP (mw) 35.250 Radiated (EIRP) dBm 15.472 ERP = EIRP - 2.17 dB EIRP Power density (S) mW/cm2 = ------- Radiated (ERP) dBm 13.302 4 p r^2 r (cm) EIRP (mW) Occupational Limit FCC radio frequency radiation exposure limits per 1.1310 3.06 mW/cm2 Frequency (MHz) Occupational Limit (mW/cm2 ) Public Limit (mW/cm2 ) 30.57 W/m2 30-300 1 0.2 General Public Limit 300-1,500 f/300 f/1500 0.61 mW/cm2 1,500-10,000 5 1 6.11 W/m2 Occupational Limit 0.6455ƒ0.5 W/m2 IC radio frequency radiation exposure limits per RSS-102 2 24.33 W/m Frequency (MHz) Occupational Limit (W/m2 ) Public Limit (W/m2 ) 0.5 General Public Limit 100-6,000 0.6455ƒ 0.6834 2 0.02619ƒ W/m 6,000-15,000 50 2.77 W/m2 48-300 1.291 0.6834 300-6,000 0.02619ƒ 6,000-15,000 50 10 f = Transmit Frequecny (MHz) f (MHz) = 917 MHz PT = Power Input to Antenna (mW) PT (mW) = 28 mW Duty cycle (percentage of operation) %= 100 % PA = Adjusted Power due to Duty cycle or Cable Loss (mW) PA (mW) = 28 mW GN = Numeric Gain of the Antenna GN (numeric) = 1.26 numeric 2 2 S20 = Power Density of device at 20cm (W/m2 ) S20 =(PAGN)/(4πR20 ) S20 (W/m ) = 0.07 W/m2 SL = Power Density Limit (W/m )2 SL (W/m2 ) = 2.771 W/m2 RC = Minimum distance to the Radiating Element for Compliance (cm) RC=√(P AGN/4πS ) L RC (cm) = 3.2 cm 2 2 SC = Power Density of the device at the Compliance Distance RC (W/m2 ) SC=(PAGN)/(4πRC) SC (W/m ) = 2.77 W/m2 R20 = 20cm R20 = 20 cm For Complaince with Canada General Population Limits, User Manual must indicate a minimum seperation distance of 3.2 cm Rogers Labs, Inc. SAF Tehnika AS S/N’s: 306681 000005 / 306681 000006 4405 W. 259th Terrace Model: TDSPC0U3 (Aranet 4) FCC ID: W9Z-ARANET4 Louisburg, KS 66053 Test: 190530 IC: 8855A-ARANET4 Phone/Fax: (913) 837-3214 Test to: CFR47 15C, RSS-Gen RSS-247 Date: August 28, 2019 Revision 1 File: TDSPC0U3 RFExp Page 1 of 2

Model: TDSPC0U3 Test Number: 190530 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) 0.0040 Antenna Gain (dBi) 5 Output Power for 100% duty Cycle operation (Watts) 0.0040 Antenna Gain (Numeric) 3.16 Calcualtion power Tx Frequency (MHz) 2402 0.0040 dBd + 2.17 = dBi dBi to dBd 2.2 (Watts) Antenna Gain (dBd) 2.83 Cable Loss (dB) 0.0 Adjusted Power (dBm) 6.02 Antenna minus cable (dBi) 5.00 Calculated ERP (mw) 7.675 EIRP = Po(dBM) + Gain (dB) Calculated EIRP (mw) 12.649 Radiated (EIRP) dBm 11.021 ERP = EIRP - 2.17 dB EIRP Power density (S) mW/cm2 = ------- Radiated (ERP) dBm 8.851 4 p r^2 r (cm) EIRP (mW) Occupational Limit FCC radio frequency radiation exposure limits per 1.1310 5.00 mW/cm2 Frequency (MHz) Occupational Limit (mW/cm2 ) Public Limit (mW/cm2 ) 2 50.00 W/m 30-300 1 0.2 General Public Limit 300-1,500 f/300 f/1500 1.00 mW/cm2 1,500-10,000 5 1 10.00 W/m2 Occupational Limit 0.5 2 0.6455ƒ W/m IC radio frequency radiation exposure limits per RSS-102 39.38 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 5.35 W/m2 48-300 1.291 300-6,000 0.02619ƒ0.6834 6,000-15,000 50 10 f = Transmit Frequecny (MHz) f (MHz) = 2402 MHz PT = Power Input to Antenna (mW) PT (mW) = 4.0000 mW Duty cycle (percentage of operation) %= 100 % PA = Adjusted Power due to Duty cycle or Cable Loss (mW) PA (mW) = 4.00 mW GN = Numeric Gain of the Antenna GN (numeric) = 3.16 numeric 2 2 S20 = Power Density of device at 20cm (W/m2 ) S20 =(PAGN)/(4πR20 ) S20 (W/m ) = 0.025 W/m2 SL = Power Density Limit (W/m2 ) SL (W/m2 )= 5.351 W/m2 RC = Minimum distance to the Radiating Element for Compliance (cm) RC=√(P AGN/4π S ) L RC (cm) = 1.4 cm 2 2 SC = Power Density of the device at the Compliance Distance RC (W/m2 ) SC=(PAGN)/(4πRC) SC (W/m ) = 5.35 W/m2 R20 = 20cm R20= 20 cm For Complaince with Canada General Population Limits, User Manual must indicate a minimum seperation distance of 1.4 cm Rogers Labs, Inc. SAF Tehnika AS S/N’s: 306681 000005 / 306681 000006 4405 W. 259th Terrace Model: TDSPC0U3 (Aranet 4) FCC ID: W9Z-ARANET4 Louisburg, KS 66053 Test: 190530 IC: 8855A-ARANET4 Phone/Fax: (913) 837-3214 Test to: CFR47 15C, RSS-Gen RSS-247 Date: August 28, 2019 Revision 1 File: TDSPC0U3 RFExp Page 2 of 2


Document Created: 2019-08-28 07:31:26
Document Modified: 2019-08-28 07:31:26
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