RF Exposure

FCC ID: RI7LE910C1NS

RF Exposure Info

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FCCID_3406874

DEKRA Testing and Certification S.A.U.
Parque Tecnológico de Andalucía
Severo Ochoa, 2 & 6
29590 Málaga
Spain

Date: April 26th, 2017
Report: 53299_LE910C1-NS

                  RF exposure analysis for the equipment – Maximum Antenna Gain

Model: LE910C1-NS                  FCC ID: RI7LE910C1NS                           IC: 5131A-LE910C1NS

The device Telit LE910C1-NS is a module designed to be installed in other devices. This device is to be used
only for fixed and mobile applications. If the final product after integration is intended for portable use, new
applications and FCC and ISED are required.

The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm
from all the persons and must not be co-located or operating in conjunction with any other antenna or
transmitter except as under the conditions described KDB 447498 D01 General RF Exposure Guidance.


MPE exposure limits

The table below is excerpted from Table 1B of 47 CFR 1.1310 titled Limits for Maximum Permissible Exposure
(MPE), Limits for General Population/Uncontrolled Exposure:
                                                                             2
         Frequency Range (MHz)             Power density (mW/cm )                   Averaging time (minutes)
                   300 – 1500                      f (MHz) /1500                                30
               1500 – 100.000                           1,0                                     30

The table below is excerpted from RSS-102, Issue 5, 4, titled “Table 4: RF Field Strength Limits for Devices
Used by the General Public”:
                                                                         2
         Frequency Range (MHz)              Power density (W/m )                    Averaging time (minutes)
                                                               0.6834
                   300 – 6000                      0.02619·f                                     6


EIRP limits

                         Frequency
                                       FCC MPE       ISED MPE            FCC/IC       FCC EIRP
                            (MHz)                                                                    ISED EIRP limit
           Band                          limit          limit           MPE limit       limit
                           (Lowest             2              2                2                          (W)
                                       (mW/cm )      (mW/cm )           (mW/cm )         (W)
                         Frequency)

          FDD 5            820,0         0,547         0,257            0,25671         11,48            11,50
          FDD 26           814,0         0,543         0,255            0,25542         11,48            11,50
          FDD 4            1710,0        1,000         0,424            0,42419          1,00             1,00
          FDD 2            1850,0        1,000         0,448            0,44763          2,00             2,00
          FDD 25           1850,0        1,000         0,448            0,44763          2,00             2,00
          FDD 12           699,0         0,466         0,230            0,23017          4,92             5,00


                                                  PG
Using the equation                   S                         to calculate the exposure to electromagnetic fields
                                               4R 2
                where:        S = power density (in appropriate units, e.g. mW/cm 2)
                              P = power input to the antenna (in appropriate units, e.g., mW)
                              G = power gain of the antenna in the direction of interest relative to an isotropic radiator
                              R = distance to the centre of radiation of the antenna (appropriate units, e.g., cm)

The maximum antenna gain that can be used in the LE910C1-NS is shown in the following table:

                                Maximum                                                                                 Evaluation                                                      Maximun        Maximun antenna
                 Frequency                                                                                                           Antenna gain to Antenna gain to Antenna gain to
                               conducted                  FCC MPE     ISED MPE     FCC/IC MPE   FCC EIRP   ISED EIRP   distance for                                                  antenna gain to gain to meet all the
                    (MHz)                   Duty cicle                                                                               meet FCC/ISED meet FCC EIRP meet ISED EIRP
       Band                   output power                  limit        limit        limit       limit       limit  compliance with                                                   meet all the  limits per frequency
                  (Low est                     (%)                2            2            2                                           MPE limit         limit           limit
                              (per tune-up)              (mW/cm )     (mW/cm )      (mW/cm )       (W)         (W)      MPE limits                                                       limits              band
                 Frequency)                                                                                                               (dBi)           (dBi)           (dBi)
                                 (dBm)                                                                                     (cm)                                                           (dBi)              (dBi)

       FDD 5       820,0         25,00       100,0%        0,547        0,257       0,25671      11,48       11,50          20              6,10             15,59           15,60         6,10
                                                                                                                                                                                                             6,08
   FDD 26          814,0         25,00       100,0%        0,543        0,255       0,25542      11,48       11,50          20              6,08             15,59           15,60         6,08
       FDD 4       1710,0        25,00       100,0%        1,000        0,424       0,42419       1,00       1,00           20              8,28             5,00            5,00          5,00              5,00
       FDD 2       1850,0        25,00       100,0%        1,000        0,448       0,44763       2,00       2,00           20              8,52             8,01            8,01          8,01
                                                                                                                                                                                                             8,01
   FDD 25          1850,0        25,00       100,0%        1,000        0,448       0,44763       2,00       2,00           20              8,52             8,01            8,01          8,01
   FDD 12          699,0         25,00       100,0%        0,466        0,230       0,23017       4,92       5,00           20              5,63             11,91           11,98         5,63              5,63




                                  Maximum                                                                                                                            Evaluation
                     Frequency                                                                                                                                                              PG
                        (MHz)
                                 conducted
                                              Duty cicle
                                                                        Antenna        FCC/IC MPE
                                                                                                  FCC EIRP limit ISED EIRP limit
                                                                                                                                                   FCC/ISED         distance for     S                   MPE Ratio
        Band
                      (Low est
                                output power
                                                 (%)
                                                                          gain            limit
                                                                                                       (W)            (W)
                                                                                                                                                   EIRP limit       compliance
                                                                                                                                                                                           4 R 2        (S/MPE limit)
                                (per tune-up)                            (dBi)          (mW/cm2)                                                      (W)             with MPE
                     Frequency)                                                                                                                                                        (mW/cm2)
                                   (dBm)                                                                                                                             limits (cm)

        FDD 5          820,0              25,00           100,0%           6,08          0,25671           11,48                 11,50               11,48              20             0,25511              0,99379
       FDD 26          814,0              25,00           100,0%           6,08          0,25542           11,48                 11,50               11,48              20             0,25511              0,99879
        FDD 4          1710,0             25,00           100,0%           5,00          0,42419            1,00                  1,00                1,00              20             0,19894              0,46899
        FDD 2          1850,0             25,00           100,0%           8,01          0,44763            2,00                  2,00                2,00              20             0,39786              0,88881
       FDD 25          1850,0             25,00           100,0%           8,01          0,44763            2,00                  2,00                2,00              20             0,39786              0,88881
       FDD 12          699,0              25,00           100,0%           5,63          0,23017            4,92                  5,00                4,92              20             0,23000              0,99926




Yours sincerely,
P.A.




________________________________
By: Ken Bednasz
Title: VP Application Engineering
Company: Telit Communications S.p.A.
Telephone: +1-919-439-7977
e-mail: ken.bednasz@telit.com



Document Created: 2017-05-26 08:12:43
Document Modified: 2017-05-26 08:12:43

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