Attachment RadHaz.pdf SES-LIC-20140722-00608

Attachment RadHaz.pdf

This document pretains to SES-LIC-20140722-00608 for License on a Satellite Earth Station filing.

IBFS_SESLIC2014072200608_1054514

EXHIBIT A (Page 1 of 3)

RADIATION HAZARD STUDY

This radiation hazard study describes the R.F. radiation environment of the
permanent fixed Ku-band R/T earth station terminal operated by LAA 1,
LLC. This fixed Ku-band R/T earth station terminal is to be located
and operated at a lattitude of 33d - 47m - 59s North and a longitude of
117d - 52m - 52.8s West, in Anaheim, CA.

This study is done to comply with the requirements of Section 1.1307(b) of
the rules of the Federal Communications Commission. All calculations
conform to the proceedures presented in OET Bulletin No. 65 for aperature
antennas.

Transmit antenna: Prodelin 2.4 meter KU-band
Antenna Diameter D 2.4. m
Antenna Efficency  67. %

Transmitter: 8 watt output flange SSPA, operated at 100% power
Transmit Power P 8. watt. 100. % mw
watt
P = 8 watt 1000

at 14.0 GHz at 14.5 GHz
Antenna Gain G1 49.10 G2 49.30
Wavelength 1 2.14285. cm 2 2.06896. cm

Calculations for the Near Field (Fresnel Region)

Extent of the Near Field
2 2
D D
R n1 R n2
4. 
1 4. 
2
R n1 = 67.2 m R n2 = 69.6 m

Maximum Near Field
Power Density
16. . P
Sn
2
. D
mw
S n = 0.474
2
cm

Calculations for the Far Field (Fraunhofer Region) (Page 2 of 3)

at 14.0 GHz at 14.5 GHz

2 2
0.6. D 0.6. D
Distance to Far Field R f1 R f2
1 2
R f1 = 161.281 m R f2 = 167.04 m

G1 G2
10 10
Absolute Gain of Antenna G a1 10 G a2 10

P. G a1 P. G a2
Maximum Far Field Power S f1 S f2
2 2
Density 4. . R f1 4. . R f2

mw mw
S f1 = 0.199 S f2 = 0.194
2 2
cm cm

Calculations for the Transition Zone

The farthest point in the near field is the beginning of the transition zone -
R t1 R n2

R t1 = 69.6 m

The end of the Transition Zone is the beginning of the Far Field -

R t2 R f2
R t2 = 167.04 m

Beginning End
S n. R n2 S n. R n2
Transition Zone Power Density S
t1 S t2
R t1 R t2

mw mw
S t1 = 0.474 S t2 = 0.197
2 2
cm cm

Calculations at the Reflector Surface: (Page 3 of 3)

2
D
Area of Reflector A .
2
2
A = 4.524 m

P
Power Density at the S ref 2.
Reflector Surface A

mw
S ref = 0.354
2
cm

Calculations between the Antenna and the Ground:

Power Density between P
S ga
Antenna and Ground A

mw
S ga = 0.177
2
cm

Conclusions

The power densities in the Near Field, Far Field, Transition Zone, at the
Surface of the Reflector, and between the Reflector and the Ground are all
below the allowable limit. Nowhere do they exceed the level of 5 mw/cm2
as listed in OET Bulletin No. 65. Thus, this transmit earth terminal meets
FCC requirements for human exposure to radio frequency energy.

EXHIBIT B (Page 1 of 3)

ENVIRONMENTAL IMPACT STATEMENT
Transmit/Receive

In regard to Section 1.1307(a) of the Commission's rules:

This site is not in a designated wilderness area or wildlife preserve; it does not
threaten endangered species or critical habitats; nor does it affect sites,
structures, or habitats which are significant in American history, architecture,
archeology, engineering or culture that are listed or are eligible for listing in the
National Registry of Historic Places; it does not affect Indian religious sites or
flood plains; nor does it cause significant change in wetland fill, deforestation, or
water diversion.

In regard to section 1.1307(b) of the Commission's rules:

We have prepared the calculations of radio frequency radiation for this
transmitter and antenna combination, under the operating conditions specified in
this application, with these results:

Region Radiation level Hazard assessment
(mw/cm 2)
________ ______________ _________________

Near field 0.474 Complies with guidelines

Far field 0.199 Complies with guidelines

Transition zone 0.474 Complies with guidelines

At reflector surface 0.354 Complies with guidelines

Between the rim of the 0.177 Complies with guidelines
antenna and the ground

(Page 2 of 3)

Conclusions: Based on the study, which is summarized above, we conclude that
in the regions of concern, the radiation level complies with the guidance; the level
is less than 5 milliwatts per square centimeter.

Accordingly, this action does not have a significant environmental impact as
described in the Commission's rules and does not require the preparation of an
environmental assessment.

Michael Kirk
(name)

Satellite Engineer
(title or position)

07/19/14
(date)

(Page 3 of 3)

It is the applicant's responsibility to ensure that the public and operational personnel are
not exposed to harmful levels of radiation.

Further Conclusions:
Based on this analysis it is concluded that the FCC RF Guidelines have not been exceeded
in the specific regions shown in this report. The applicant proposes to comply with
the Maximum Permissible Exposure (MPE) limits of 1 mW/cm2 for the Uncontrolled
areas, and the MPE limits of 5 mW/cm2 for the Controlled areas by one or more of the
following methods:

Means of Compliance Uncontrolled Areas:
This antenna will be located in a secured area. This area will be sufficient to prohibit
access by the general public to the areas that exceed the MPE limited. The general
public will not have access to areas within ½ diameter removed from the edge of the
antenna.

Since one diameter removed from the main beam of the antenna, or ½ diameter
removed from the edge of the antenna, the RF levels are reduced by a factor of 100 or
20 dB. None of the areas exceeding the MPE levels will be accessible by the general
public.

Radiation hazard signs will be posted while this earth station is in operation.

The applicant will ensure that no buildings or other obstacles will be in the area that
exceed the MPE levels.

Means of Compliance Controlled Areas:
The earth station’s operational personnel will not have access to the areas that
exceed the MPE levels while the earth station is in operation.

The transmitters will be turned off during antenna maintenance.

Document Created: 2014-07-19 11:19:10
Document Modified: 2014-07-19 11:19:10

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