RF Exposure

FCC ID: O99TM-8102

RF Exposure Info

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FCCID_1490434

                                                         TecNet International Inc.
                                                         1420 N.W. Vivion Road Suite 109 Kansas
                                                         City Missouri United States


                §1.1307 and §2.1093-RF EXPOSURE EVULATION

1.1 Limit

§ 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of
human exposure to radio-frequency (RF) radiation as specified in 1.1307(b).

                  LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE)

Frequency Range     Electric Field Strength   Magnetic Field Strength     Power Density     Average Time
     (MHz)                   (V/m)                    (A/m)                (mW/cm2)          (minutes)

                              (A) Limits for Occupational/Control Exposures

    30 - 300                  61.4                      0.163                   1.0                6

   300 - 1500                   --                        --                   f/300               6

                       (B) Limits for General Population/Uncontrolled Exposure

    30 - 300                  27.5                      0.073                   0.2               30

   300 - 1500                   --                        --                  f/1500              30
Note: f is frequency in MHz


1.2 Method of Measurements

Calculation Method of RF Safety Distance:




               Where,                P: power input to the antenna in mW
                                    EIRP: Equivalent (effective) isotropic radiated power.
                                    S: power density mW/cm2
                                    G: numeric gain of antenna relative to isotropic radiator
                                    r: distance to centre of radiation in cm




FCC radio frequency exposure limits may be exceeded at distances closer than r cm from
the antenna of this device.

1.3 Evaluation of RF Exposure Compliance Requirements

Maximum RF Power conducted, P [dBm] = 47.01
Maximum Antenna Gain, G[dBi] = 0
Maximum EIRP, P [dBm] = 47.01
User-based time-average for PTT = 50%
Peak EIRP = 47.01 dBm + 0 dBi = 47.02 dBm = 58,280 mWatts (worst case)
Average EIRP = 50% * EIRP = 25,140 mWatts

MPE Limit for Occupational/Controlled Exposure, S [mW/cm2] = 1.0
MPE Limit for General Population/Uncontrolled Exposure, S [mW/cm2] = 0.2

Calculation of Minimum RF Safety Distance Limits:
Calculated RF Safety Distance for Occupational/Controlled Exposure,
r [cm] = 44.73
Calculated RF Safety Distance for General Population/Uncontrolled Exposure,
r[cm] = 100.01
Results: Manufacturer declares RF Safety Distance of 45 cm for Occupational/Controlled
Exposure and 100 cm for General Population/Uncontrolled Exposure which met the FCC
Limits. Please refer to Users Manual for details of RF Exposure Information.



Document Created: 2011-06-13 19:36:59
Document Modified: 2011-06-13 19:36:59

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