Attachment grant

grant

DECISION submitted by IB,FCC

grant

2007-01-18

This document pretains to SAT-STA-20050712-00145 for Special Temporal Authority on a Satellite Space Stations filing.

IBFS_SATSTA2005071200145_546024

                                                                                                               Approved by OMB
                                                                                                                     3060—0678


Date & Time Filed: Jul 12 2005 7:15:15:810PM
File Number: SAT—STA—20050712~00145
Callsign:

                                         FEDERAL COMMUNICATIONS COMMISSION
                               APPLICATION FOR SPACE STATION SPECIAL TEMPORARY AUTHORITY

                                                       FOR OFFICIAL USE ONLY

   APPLICANT INFORMATION
Enter a description of this application to identify it on the main menu:
 Request for STA to operate indoor boosters
1. Applicant


            Name:        XM Radio Inc.                      Phone Number:           202—380—4000
            DBA Name:                                       Fax Number:             202—380—4500

            Street:      1500 Eckington Place, NE           E—Mail:                 bill. bailey@xmradio.com


            City:        Washington                         State:                   DC

            Country:     USA                                Zipcode:                20002       —
            Attention:   William J. Bailey




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                  Application of XM Radio Inc. for Special Temporary Authority
                             IBFS File No. SAT—STA—20050712—00145


Special temporary authority (STA) IS GRANTED to XM Radio Inc. (XM Radio) for a period of
180 days to operate up to 5,000 indoor terrestrial repeaters with an Effective Isotropically
Radiated Power (EIRP) of 0.0001 watts at stores and other commercial establishments within the
United States where satellite radio receivers are displayed or used, but where signals may be
attenuated due to blockage from walls and ceilings, subject to the following conditions:

1. XM Radio shall operate the indoor terrestrial repeaters at its own risk and such operation
   shall not prejudice the outcome of the final rules adopted by the Commission in IB Docket
     95—91;

2. XM Radio shall operate the indoor terrestrial repeaters on a non—interference basis with
     respect to all permanently authorized radiocommunication facilities;

3. The indoor terrestrial repeaters are restricted to the simultaneous retransmission of the
   complete programming, and only that programming, transmitted by the satellite directly to
   SDARS receivers;

4. Where applicable, coordination of the indoor terrestrial repeaters shall be completed with all
   affected Administrations prior to operation, in accordance with all applicable international
     agreements including those with Canada and Mexico;

5. The indoor terrestrial repeaters shall comply with Part 17 of the Commission‘s rules —
   Construction, Marking, and Lighting of Antenna Structures;

6. The indoor terrestrial repeaters shall comply with Part 1 of the Commission‘s rules, Subpart I
   — Procedures Implementing the National Environmental Policy Act of 1969, including the
   guidelines for human exposure to radio frequency electromagnetic fields as defined in
     Sections 1.1307(b) and 1.1310 of the Commission‘s rules;

7. The out—of—band emissions of the indoor terrestrial repeaters shall be limited to 75+log(EIRP)
   dB less than the transmitter EIRP;

8. XM Radio shall operate the indoor terrestrial repeaters according to the technical parameters
   provided in its application for special temporary authority to operate such indoor terrestrial
     repeaters;

9.   The indoor terrestrial repeaters shall be professionally installed pursuant to written
     instructions provided by XM Radio and shall be labeled with contact telephone numbers for
     XM Radio to be called in the event that an indoor terrestrial repeater causes interference;

10. XM Radio shall immediately shut down any, or all, indoor terrestrial repeaters upon a
     complaint of interference, upon direction from the Commission, or upon finding that an
     indoor terrestrial repeater has not been properly installed;


              Application of XM Radio Inc. for Special Temporary Authority
                         IBFS File No. SAT—STA—20050712—00145

11. XM Radio is granted 30 days from the date of the release of this authorization to decline the
   authorization as conditioned. Failure to respond within that period will constitute formal
   acceptance of the authorization as conditioned.

12. This action is issued pursuant to Section 0.261 of the Commission‘s rules on delegated
   authority, 47 C.F.R. § 0.261, and is effective immediately. Petitions for reconsideration
   under Section 1.106 or applications for review under Section 1.115 of the Commission‘s
   rules, 47 C.F.R. §§ 1.106, 1.115, may be filed within 30 days of the date of the public notice
   indicating that this action was taken.




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2. Contact


             Name:         Bruce D. Jacobs                      Phone Number:                        202—663—8077
             Company:      Pillsbury Winthrop Shaw Pittman      Fax Number:                          202—663—8007
                           LLP

             Street:       2300 N Street, NW                    E—Mail:                              bruce.jacobs@pillsburylaw.com



             City:         Washington                           State:                                DC
             Country:      USA                                  Zipcode:                             20037     ~1128
             Attention:                                         Relationship:                        Legal Counsel


  (If your application is related to an application filed with the Commission, enter the file number below.)
  3. Reference File Number
  4a. Is a fee submitted with this application?
® IfYes, complete and attach FCC Form 159.        If No, indicate reason for fee exemption (see 47 C.F.R.Section 1.1114).
[3 Governmental Entity Noncommercial educational licensee
0 Other(please explain):

4b. Fee Classification    CRY — Space Station (Geostationary)
5. Type Request


0 Change Station Location                         j Extend Expiration Date                          & Other



6. Temporary Orbit Location                                                7. Requested Extended Expiration Date


8. Description   (If the complete description does not appear in this box, please go to the end of the form to view it in its entirety.)
     XM Radio Inc. requests Special Temporary Authority to operate up to 5000 indoor signal
     boosters in its licensed frequency band                        (2332.5—2345 MHz)           with an Effective Isotropically
     Radiated Power          (EIRP)    of 0.0001 watts.




9. By checking Yes, the undersigned certifies that neither applicant nor any other party to the application is subject     @ Yos           { No
to a denial of Federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti—Drug Act of 1988,
21 U.S.C. Section 862, because of a conviction for possession or distribution of a controlled substance. See 47 CFR
1.2002(b) for the meaning of "party to the application" for these purposes.


10. Name of Person Signing                                                  11. Title of Person Signing
William J. Bailey                                                           Senior Vice President
12. Please supply any need attachments.
 Attachment 1: Letter                              Attachment 2:                                       Attachment 3:



          WILLFUL FALSE STATEMENTS MADE ON THIS FORM ARE PUNISHABLE BY FINE AND / OR IMPRISONMENT
                 (U.S. Code, Title 18, Section 1001), AND/OR REVOCATION OF ANY STATION AUTHORIZATION
                  (U.S. Code, Title 47, Section 312(a)(1)), AND/OR FORFEITURE (U.S. Code, Title 47, Section 503).


ECC NOTICE REQUIRED BY THE PAPERWORK REDUCTION ACT

The public reporting for this collection of information is estimated to average 2 hours per response, including the time for reviewing instructions,
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THE FOREGOING NOTICE IS REQUIRED BY THE PAPERWORK REDUCTION ACT OF 1995, PUBLIC LAW 104—13, OCTOBER
1, 1995, 44 U.S.C. SECTION 3507.


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                                                   July 12, 2005

VIA ELECTRONIC FILING
Ms. Marlene H. Dortch, Secretary
Federal Communications Commission
445 12th Street, S.W.
Washington, D.C. 20554

         Re:    XM Radio Inc.
                Request for Special Temporary Authority to Operate Indoor Signal Boosters
                in the Satellite Digital Audio Radio Service

Dear Ms. Dortch:

       XM Radio Inc. ("XM"), pursuant to 47 C.E.R. § 25.120,‘ hereby requests Special
Temporary Authority ("STA") to operate up to 5,000 indoor signal boosters manufactured by
Translight Video Systems, Inc. with an Effective Isotropically Radiated Power ("EIRP") of
0.0001 watts in its licensed frequency band (2332.5—2345 MHz). This STA is requested for a
period of 180 days or until the date on which permanent rules become effective for the operation
of Satellite Digital Audio Radio Service ("SDARS") terrestrial repeaters, whichever occurs first.
Grant of this STA will serve the public interest because the boosters will allow for adequate
reception of XM‘s satellite radio service inside ofstores and other establishments where satellite
radio receivers are displayed or used but where signals may be attenuated due to blockage from
walls and ceilings. Because these boosters will transmit at an extremely low power, there is no
potential for interference to other communications services.*

         Background. The Commission has recognized that terrestrial repeaters are critical to
satellite radio to overcome the effects of signal blockage and multipath interference." Consistent
with this policy, the International Bureau ("Bureau") in September 2001 granted XM an STA to
operate terrestrial repeaters while the Commission concludes its rulemaking proceeding



* XM has filed this STA request electronically via the International Bureau Filing System. An
FCC Form 159 and the accompanying $735.00 filing fee are being submitted under separate
cover.
> XM has notified Sirius Satellite Radio Inc. ofthis request, and it does not object.
3 See Establishment ofRules and Policiesfor the Digital Audio Radio Satellite Service in the
2310—2360 MHz Frequency Band, Report and Order, Memorandum Opinion and Order, and
Further Notice ofProposed Rulemaking, 12 FCC Red 5754 (1997) ("DARS Order and
FNPRM").


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Ms. Marlene H. Dortch
July 12, 2005
Page 2

regarding final technical rules." In granting this STA, the Bureau noted that XM "needs to
employ terrestrial repeaters to provide adequate service." See XM Radio STA Order 7. Soon
after grant ofthis STA, XM began commercial service. Since that time, satellite radio has
proven to be an unmitigated success, confirming the Commission‘s vision in establishing the
satellite radio service.

        In June 2003, the Bureau granted XM and Sirius Satellite Radio Inc. ("Sirius") STAs to
jointly own and operate in—store signal boosters in their licensed frequency band." These
boosters are S—band radio frequency amplifiers.© XM uses these signal boosters to receive and
amplify satellite and terrestrial signals inside of retail outlets, where such transmissions are
attenuated, to demonstrate the capability of satellite radio. To date, XM has not received any
complaints of interference resulting from its operation of these signal boosters. In June 2005,
XM filed a request for an STA to operate an additional 5000 of these boosters."

       STA Request. With this application, XM requests an STA to operate 5000 indoor signal
boosters manufactured by Translight Video Systems, Inc. with an EIRP of 0.0001 watts in its
licensed frequency band (2332.5—2345 MHz). The technical parameters and configuration of
these boosters will be similar to XM‘s currently authorized boosters. An antenna will be located
on the roof or mounted on the outside walls of a store or other structure to receive the XM
satellite signal and, where available, terrestrial signal. The signal will then be fed via coaxial
cable to an inline amplifier and subsequently to an antenna inside an establishment which will
amplify the signal. The transmitted carriers have a center frequency and frequency stability
identical to the received satellite and terrestrial carriers.

        These boosters, like the previously approved signal boosters, are essentially S—band radio
frequency amplifiers. They are ideally suited for supplementing satellite radio coverage indoors,
such as inside stores and other establishments where satellite radio receivers are displayed or
used.




* XM Radio, Inc., Applicationfor Special Temporary Authority to Operate Satellite Digital
Audio Radio Service Complimentary Terrestrial Repeaters, Order and Authorization, DA 01—
 2172, at 4| 18 (rel. September 17, 2001) ("XM Radio STA Order").
 * XM Radio Inc., Request for Special Temporary Authority, File No. SAT—STA—20030409—
 00076 (granted June 23, 2003) ("XM Booster STA").
 © Unlike boosters, repeaters perform a change in modulation and operate at EIRPs over ten
 million times higher than boosters.
  XM Radio Inc., Request for Special Temporary Authority, File No. SAT—STA—20050601—
 00113 (filed June 1, 2005).


Ms. Marlene H. Dortch
July 12, 2005
Page 3

        XM will distribute the signal boosters along with an Installation Manual. An illustrative
Installation Manual is attached as Exhibit A. The signal boosters will be required to be installed
pursuant to the Installation Manual. Other than a mechanical swivel which permits the user to
align the booster transmit antenna with the indoor receiving antenna, the boosters have no
operator controls and are not adjustable by the user. Pursuant to contractual arrangements, XM
will maintain ownership and operational control of each of these indoor signal boosters and will
retain the right to shut down any signal booster upon a complaint of interference, upon direction
of the Commission, or upon finding that a booster has not been installed in accordance with the
Installation Manual. Each booster will be labeled with the phone number of XM‘s repeater
operations center (202—529—7012) in the event that a booster causes interference. XM‘s repeater
operations center is staffed 24 hours per day, 7 days per week.*

        In Exhibit B, XM provides a list of technical parameters for the indoor signal boosters it
seeks to operate pursuant to this STA. XM has included the following information: (1) antenna
type; (2) antenna beamwidth; (3) total EIRP; and (4) approximate maximum height Above
Ground Level (AGL)."
        The location of each indoor signal booster does not constitute part of the "full particulars
of the proposed operation" which must be submitted with an application for STA.‘" Because the
indoor signal boosters will operate at such a low EIRP that they will not cause blanketing
interference to any Wireless Communications Service ("WCS") receivers, even ones operated
very close to the signal boosters, there is no need to identify the location of the boosters in this
application. Furthermore, it would be impractical for XM to list the establishments nationwide at
which it plans to deploy these indoor signal boosters or to modify this STA every time XM were
to operate an indoor booster at a new retail establishment. To the extent that the Commission
determines that location information is required, XM respectfully requests that the Commission
waive this requirement."‘

        Interference Considerations. The indoor signal boosters will not cause harmful
 interference to other radio services. Because XM has exclusive use of its licensed frequency
 band,‘" there is no potential for in—band interference. Moreover, these additional indoor signal


 * XM Radio‘s point of contact for Commission inquiries regarding operation of the boosters is
 Craig Wadin (phone: 561—226—1218; fax: 561—883—5642; e—mail: craig.wadin@xmradio.com).
 ° XM notes that the manufacturers of these boosters may change, but the specifications will
 remain the same.
 © 47 CER. § 25.120(a).
 47 C.ER. §1.3.
 247 C.F.R. § 25.202(a)(6) (stating the 2320—2345 MHz band is allocated exclusively for
 SDARS).


Ms. Marlene H. Dortch
July 12, 2005
Page 4

boosters, like the current boosters, will not cause adjacent band interference to WCS licensees in
the 2305—2320 MHz and 2345—2360 MHz bands.

       As set forth in Exhibit C, assuming the worst case scenario for interference to WCS
operations (F.e., WCS equipment operating on a frequency adjacent to the upper edge of XM‘s
licensed frequency band and operating within 5.3 feet of the signal booster), WCS licensees will
have a margin of 19 dB, which is sufficient for any digital fixed wireless or mobile use.
Moreover, where WCS equipment operates outside ofthe structure where the booster is located,
the margin will increase by another 9 dB as a result of wall or ceiling attenuation, providing
additional protection to any possible outdoor WCS receivers. And, as required by the
Installation Manual, both the SDARS roof or wall—mounted receive antenna and the signal
booster antenna will be installed with sufficient isolation to avoid reflection. Moreover, the
booster will filter any WCS signals to avoid unintentionally boosting WCS signals along with the
SDARS signal.

         Public Interest Considerations. Prompt grant of this STA will promote the continued
success of satellite radio and thereby serve the public interest. This STA will allow for clear
reception of satellite radio inside of stores and other establishments where satellite radio
receivers are used or displayed. Due to blockage from walls and ceilings, it is often difficult to
provide quality reception of satellite and even terrestrial signals inside of certain structures.
 Grant of this request is particularly critical given the display and use of portable, hand—held
 satellite radio receivers inside of retail and other establishments nationwide. Many such
 establishments are located in areas that receive only a satellite signal or a weak repeater signal,
 thereby limiting the potential for indoor reception. By operating an indoor signal booster, XM
 will be able to provide indoor reception without the need for a hard wire connection to the
 receiver. As XM explained in its original booster STA request, a hard wire connection misleads
 consumers to believe that satellite radio is not a mobile service. In addition, grant of the
 requested STA will enable XM to deploy advanced technology, which will support the continued
 growth and development of satellite radio service.

         XM certifies that its operation of the boosters will comply with the same conditions the
 Commission imposed on XM in granting its original repeater STA. See XM Radio STA Order 1
 18. Specifically, XM Radio certifies the following:

         (a)     Any actions taken as a result of this STA are solely at XM Radio‘s own risk. This
                 STA will not prejudice the outcome of the final rules adopted by the Commission
                 in GEN Docket 95—91;

         (b)     Operation of the boosters authorized pursuant to this STA is on a non—interference
                 basis with respect to all permanently authorized radiocommunication facilities;


Ms. Marlene H. Dortch
July 12, 2005
Page 5

         (c)    The booster is restricted to the simultaneous retransmission of the complete
                programming, and only that programming, transmitted by the satellite
                directly to SDARS receivers;

         (d)    Where applicable, coordination of the booster shall be completed with all affected
                Administrations prior to operation, in accordance with all applicable international
                agreements including those with Canada and Mexico;

         (e)    The booster will comply with Part 17 of the Commission‘s rules regarding
                antenna structures;


         8      The booster will comply with Part 1 of the Commission‘s rules, Subpart I —
                Procedures Implementing the National Environmental Policy Act of 1969,
                including the guidelines for human exposureto radio frequency electromagnetic
                fields as defined in Sections 1.1307(b) and 1.1310 of the Commission‘s rules;

         (g)    The out—of—band emissions of the booster will be limited to 75+log (EIRP) dB less
                than the transmitter EIRP.

        One of the conditions imposed in the original STA grant was the requirement that XM
pre—coordinate with WCS licensees any repeater affecting an operational WCS base station. See
XM Radio STA Order § 14. XM is not aware of any operational WCS base stations. Moreover,
as required with XM‘s currently authorized boosters, the boosters will be professionally installed
pursuant to written instructions provided by XM and will be labeled with the contact telephone
number for XM to be called in the event that a booster causes interference. XM Booster STA,
Condition #12.


Ms. Marlene H. Dortch
July 12, 2005
Page 6

         Please direct any questions regarding this matter to the undersigned.

                                               Very truly yours,




                                               /s/William J. Bailey
                                               William J. Bailey
                                               Senior Vice President, Regulatory and
                                                       Government Affairs


Cc:      Stephen Duall


        EXHIBIT A




Mustrative Installation Manual


   ILLUSTRATIVE USERS MANUAL


TRANSLIGHT IN—BUILDING BOOSTERS




 TRANSLIGHT VIDEO SYSTEMS INC.

        LA JOLLA CA 92037


1.0 System Overview and Indoor Booster Description

Wireless systems frequently suffer from insufficient RF coverage particularly in enclosed areas
such as residential homes, apartment buildings, office buildings, or shopping mall areas (to
mention a few). Those weak coverage areas can be eliminated by installing active RF boosters
which amplify filter and redirects the stronger available outdoor signal indoor with a properly
selected indoor coverage antennae.

                        Figure 1: TransLight Indoor Booster




The TransLight Booster to be installed at a customer location consists of a booster housing,
swivel to align the transmitting and receiving antenna fields, a wallwart—type power supply
providing I9v to the booster system, and sufficient amount of coax to connect the indoor booster
with the outdoor receiving antenna.

The booster housing consists offront and back covers. On the front cover, one can find the
ON/OFF push button and a green LED power on indicator. On the back cover, access is
provided to the power connector and to the RF input connector of the booster. In addition, a
 threaded insert is molded in the back cover for the swivel arm to be attached to it during
 installation.

 In addition, a distribution amplifier is provided to compensate for cable losses and to ensure the
 booster has the necessary input signal level needed for proper operation.

 2.0 Installation Procedures

 Installation of a booster consists of finding a suitable location for the housing to be mounted.
 Ideally, the booster will be located at the highest point with direct view of the area to be covered.
 At that location, one first mounts the base of the swivel, then mounts the booster with its
 attached swivel arm, and then tightens the screws to install the swivel arm on to the base. Now
 the swivel can be rotated to left and right, and up and down.


Once the booster is mounted onto the swivel base, one can proceed with the installation of the
RF and the power cables to the booster. Make sure that a proper power supply (and connector)
is used to supply the power to the booster (and the other serially—connected components on the
RF cable) which are powered by it.

3.0 Distribution Amplifier Installation Instructions

The distribution amplifier is an essential component of the booster system and will most likely
be included in a large number of booster installations. Its purpose is to compensate for the cable
losses and to make sure that the signal level at the input of the booster is in its proper range. The
distribution amplifier when installed is powered by the booster, and the instillation consists
simply of serially inserting a SMB male to male amplifier at the cable extension point between
two sections of coax cable properly connected (SMB female to female in this case). The
distribution amplifier has to drive a minimum length of 16 feet of coax cable, and a max of 150
feet.




                                                                       Figure 2: Booster on a
                                                                       swivel and the associated
                                                                       distribution amplifier


4.0 Other Installed Components of An Indoor Booster System

The other components ofthe system include outdoor amplified antenna and a home satellite radio
receiver with its indoor amplified antenna.

SDARS roof or wall—mounted receive antenna and the signal booster antenna must be installed with
sufficient isolation to avoid reflection. During installation, special attention must be paid to
minimizing multipath and reflection effects. Each antenna location selection must be made to
minimize the multipath and maximize the isolation between different antenna, thus minimizing the
reflections and avoiding dead spots at their different locations.

Input amplified antenna feeds the indoor satellite receiver with signal received from the booster and
thus its location also has to be selected judiciously. Ideally, it has to be mounted as high as possible
to prevent people walking to affect the quality of the reception and away from places that can cause
reflections and multipath.

5.0   Completion of Installation — Final Test

Once the outdoor/indoor amplified antennae, receiver, and the booster components have been
installed, one can now align and test the system for proper operation by observing the RSSI and
BER at the receiver.


                         Specifications

Electrical                           Satellite Radio
Frequencg/ band                      2320—2345 MHz
 Gain (Center frequency)             36 db min
 Gain Flatness (full band)           +!— 0.5 db
 Noise figure                        3.9 db
 Input Impedance                     50 ohms
 Input VSWR                          1.6
 Time delay                          <0.1 nsec
 Output IP;(db)                      25 dbm
 Output P;(db)                       15 dom
 Supply Voltage (From                9v(—1+.0.3)v
 external wall wart)
 Supply current                      <150 ma

 Spectral Mask                      Meets FCC—specified mask

 Operating temperature               —20 to +55°C
 storage                             ~40 to +85°C
 On—board indoor antenna            1/4 wave brass PCB mount
                                    patch

‘Antenna impedance                  50 Ohms
|Antenna gain (omni—hor)            0 dbi
Environmental                       in/outdoor environment

Mechanical

Input RF connector                   SMB Male
Connector voltage to                 9V +1— 0.3V
loutdoor antenna
Power "on" indicator LED             Green

[Dimensions                          6" DIA, 1" Thick

(Weight                              <6 oz

F‘astening /Alignment                Swivel mount


                                          EXHIBIT B

Attached is the following information for each of the indoor signal boosters XM seeks to operate
pursuant to this STA.

       (1) antenna type;
       (2) antenna beamwidth;
       (3) total EIRP; and
       (4) approximate height Above Ground Level (AGL)


City       Antenna Type                           Antenna          EIRP Total in    Height AGL
                                                  Beamwidth        Watts
Various    Integrated patch                        160 degrees     .0001             < 50 feet

The transmitted carriers have a center frequency and frequency stability identical to the received
SDARS satellite or terrestrial carriers. Frequency accuracy is controlled by the satellite or
terrestrial repeater and not by the booster.


                                               EXHIBIT C

Calculation of Free—Space Loss

          «(in dB)         =       36.6 + 20 log (f) + 20 log (d)
                 f         =       transmission frequency in MHz
                 d         =       separation distance in miles

          Assuming the worst case frequency (i.e., 2345 MHz) and 0.001 miles (F.e., 5.3 feet)
          separation:

          «(in dB)                 36.6 + 20 log (2345) + 20 log (0.001)
                                   36.6 + 67.4 — 60.0
                                   44 dB
Calculation of Signal Power Received (Pr) By WCS Receiver Assuming It Has Omni—
Directional (0 dBi) Antenna

          Pr(in dBW)       =       ERPyp— &

                 EIRPyp is the output of the booster at beampeak (%.e., 0.0001 watts or — 40 dBW)
                 (antenna beamwidth at 3 dB pattern points is 75°).

          Pr(in dBW)               ~40 dBW — 44 dB
                           d




                                   —84 dBW
                           I




Calculation of Margin at WCS Receiver (Assuming A Well—Designed Unit Operates
Unimpaired With OOB Interference Of —65 dBW)

          Margin            =      —65 dBW — (—84 dBW)
                            =      19 dB

 Notes:

           (1)     The calculation is done on a line—of—sight (F.e., 5.3 feet) co—polarized basis.

           (2)     The booster is for indoor operation and no wall/ceiling attenuation, which would
                   normally exist, has been added to the margin. Where WCS equipment operates
                     outside of the building where the booster is located, the margin will increase by
                     another 9 dB as a result of wall or ceiling attenuation, providing additional
                     protection to any possible outdoor WCS receivers.

           (3)       Near field effects should be negligible. Locations at other than beampeak receive
                     even lower Pr levels.


EXHIBIT D




Block Diagram


 ROOFTOP                                                        BOOSTER
 ANTENNA                                                        ANTENNA




A 2—pole filter has 6 dB                                      A 4—pole filter has 12 dB attenuation
attenuation at WCS frequency                                  at WCS frequency


                           THUS:

                           With a 2—pole filter at the rooftop and a 4—pole filter
                           at the booster, the total attenuation of the WCS
                           frequency will be 18 dB.

                           With —30 dBm maximum SDARS EIRP, the
                           maximum SDARS EIRP at the nearest WCS
                           frequency will be —48 dBm.



Document Created: 2007-01-18 15:42:30
Document Modified: 2007-01-18 15:42:30

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