User's Manual

APPENDIX D
FCC/DOC INFORMATION
Revised: 27 Mar 14 APX D-2 EST P/N AA107-195CM
RF EXPOSURE WARNING: A minimum separation must be maintained between the user and nearby antenna at the
following distances:
EXPOSITION RF AVERTISSEMENT: Un minimum de séparation doit être maintenue entre l'utilisateur et à proximité antenne aux
distances suivantes:
Radio Model Antenna Model/Gain FCC Minimum
Separation
Distance
Controlled
Environment
Industry Canada
Minimum
Separation
Distance
Controlled
Environment
FCC
Minimum
Separation
Distance
Uncontrolled
Environment
Industry Canada
Minimum
Separation
Distance
Uncontrolled
Environment
195C
9 Watts Max
AA19C (0 dBd) 35 cm 0.35 m 77 cm 0.77 m
195C
9 Watts Max
AA20C.1 (3.2 dBd) 50 cm 0.5 m 111 cm 1.11 m
195C
9 Watts Max
AA202C.1 (9 dBd) 97 cm 0.97 m 216 cm 2.16 m
195M
7 Watts Max
AA19M (0 dBd) 31 cm 0.31 m 68 cm 0.68 m
195M
7 Watts Max
AA20M (3.0 dBd) 43 cm 0.43 m 96 cm 0.96 m
195M
7 Watts Max
AA202M (8 dBd) 76 cm 0.76 m 170 cm 1.7 m
Terms
P = RF Power milliwatts
Gi = Antenna gain relative to isotropic = Gd + 2.15
Gd = Antenna gain relative to dipole = Gi - 2.15
N = Numerical gain of antenna
D = Distance in centimeters
Pd = Power density in mW/cm²
Max Power Density Calculation
(Numerical power gain divided by the spherical area around the separation distance)
Pd = (P * N) / ( 4 * Pi * D² )
Example: The 195M has a maximum conducted output power close to 7 Watts. The highest gain antenna EST currently offers
for use with this modem is specified with a gain factor of 8 dBd ( 10.15 dBi ). Therefore, ignoring cable and connector losses,
the maximum power density for the specified minimum safe separation distance of 170 cm (uncontrolled environments):
Pd = (7000 * 10.351 ) / ( 4 * 3.14 * 170 * 170) = 0.198 mW/cm² = 1.98 W/m²
Please contact EST technical support if you need assistance with calculations for various power levels, antennas and minimum
safe separation distances.