Exhibit 1 Rev 2

0026-EX-ML-2005 Text Documents

HNS License Sub, LLC

2005-02-14ELS_69248

                                          ATTACHMENT 1


                               TECHNICAL DESCRIPTION OF THE
                                   Ka-BAND TEST RANGE


    A. GENERAL

        Hughes Network Systems, Inc. (“HNS”) has over the past five years been developing
        broadband communication equipment for use in the Ka-band. To ensure the successful
        performance of this new hardware, HNS sought and was granted an experimental
        authorization to perform a variety of ground based tests and simulations to evaluate the
        technical and operational system performance specifications and features of the Ka-band
        equipment (Call Sign WD2XFP)1.

        On February 7, 2005, the Commission granted an application seeking consent to assign
        the underlying experimental facility at issue here, WD2XFP, from HNS, Inc. to HNS
        License Sub, LLC. That granted application, File Number 0034-EX-AU-2004, also
        sought authority to assign to HNS License Sub, LLC all applications for related
        experimental special temporary authorizations ("STAs") and all applications for related
        modified or extended experimental authorizations that may be granted prior to the
        consummation of the assignment of WD2XFP, such as the authority sought here. This
        application for a license modification with respect to WD2XFP is being filed prior to the
        consummation of the assignment of WD2XFP to HNS License Sub LLC. HNS License
        Sub LLC is filing this application in its own name, because the licensee of WD2XFP has
        already been changed in the OET electronic filing system.

        To date, this testing has been done via terrestrial repeaters and satellite simulators since
        few in-orbit Ka-band spacecraft have been available to use for this testing. However,
        since the start of HNS’s test program, a few satellite operators have launched and several
        are planning to launch commercial satellites having Ka-band capacity.

        HNS wishes through this modification to augment the current test facility to include
        testing of terminals through available in-orbit Ka-band capacity.

    B. TEST OBJECTIVES

        Through testing of the Ka-band earth station equipment using an in-orbit satellite, HNS
        expects to accomplish the following objectives:

            a.      verify the impact to modulation characteristics of transmission over satellite
                    (eg. timing, group delay, spectrum spreading);


1
 Experimental license modification to call sign WD2XFP, file number 0051-EX-ML-2004 was approved
11/17/2004.


               b.      verify that deployment of a moderate number of small earth stations meets the
                       expected pointing error requirements;

               c.      monitor actual Ka-band rain fade statistics in certain key regions;

               d.      verify the performance characteristics of the ground equipment.


      C. TEST FACILITY DESCRIPTION

           Current Test Facility
           The current test facility is located at the Headquarters of Hughes Network Systems at
           11717 Exploration Lane, Germantown, Maryland and will remain unchanged.

           Additional Test Facility:
           The proposed addition to the test facility would include the addition of two 350 cm hub
           antennas2 to be located at Exploration Lane and another similar 350 cm antenna to be
           located at One Aeroway Lane in North Las Vegas. The hub antennas will be used to
           communicate with each other or with any of the remote terminals listed in the Table 1.
           All 350 cm antenna will be installed in a controlled environment.


                                  TABLE 1 – Remote Antennas
     Antenna          Antenna       Antenna     Transmit    Receive Gain                           Quantity
      Model          Manufacturer  Dimensions      Gain
     Number
                                              (cm)              (dBi)             (dBi)
HNS1031929              Prodelin          74 effective           45.6              42.2                   50
                                          (98x56 cm)
     3980-131           Prodelin             98 cm              48.0              44.6                    25
     3120-131           Prodelin            120 cm              49.8              46.4                    10
     3180-131           Prodelin            180 cm              53.3              49.9                    10

           Both the hub and remote terminals will transmit signals in the frequency band from 29.5
           GHz to 30.0 GHz and receive signals in the band 19.7 to 20.2 GHz. Emissions of the
           hub will vary in bandwidth from 250 kHz to 39 MHz (QPSK). The emission codes that
           will be most used are: 250KG7W, 320KG7W, and 39M0G7W. Should any other
           emission codes be used during testing, the transmitted power will be adjusted such that
           the nominal EIRP density is not exceeded.

           Each of the remote antennas listed in Table 1 are fully compliant with FCC Part 25.209
           and are compliant with the FCC’s blanket licensing rules as provided in Part 25.138. As
           well, the terminals listed above have been previously approved for terrestrial testing as
           part of the current license for WD2XFP. While the majority of the small antennas listed
           in Table 1 will be located in the vicinity of the Germantown or North Las Vegas hubs,
2
    Andrew 350 cm antenna, model number ES35SRT-1, transmit gain of 58.9 dBi, receive gain of 55.5 dBi.


     HNS requests permission to also test the remote terminals in Table 1 anywhere in the
     continental United States in order to allow objectives (b) and (c) as listed above to be
     conducted.

     Since HNS intends to conduct tests for short periods of time over the next two years, it is
     unclear which satellite operator will have available capacity at the time of the tests. For
     this reason, HNS requests permission to conduct tests over any visible satellite having Ka
     band capacity.
     The EIRP that will be transmitted towards this satellite is summarized in Table 2. The
     Nominal EIRP levels listed in Table 2 ensure compliance with Part 25.138(a)(1),
     25.138(a)(2), 25.138 (a)(4) and 25.138(a)(6). The peak EIRP is only used by an uplink
     power control system during fading events and its use fully complies with the Part 25.138
     (a)(5). HNS undertakes to comply with the limitations placed on the space segment by
     the provider as a result of satellite coordination.

                                      TABLE 2 – EIRP
 Antenna      Antenna Size           EIRP         EIRP            EIRP (Peak)      EIRP Density
  Serial                          (Nominal)      Density                              (Peak)
 Number                                        (Nominal)
                   (cm)             (dBW)       (dBW/40              (dBW)        (dBW/40 kHz)
                                                  kHz)
HNS1031929        74 cm              42.8         33.7                48.6              39.6
 3980-131        98 cm               45.2         36.1                51.0              42.0
 3120-131        120 cm              47.0         37.9                52.8              43.8
 3180-131        180 cm              50.7         41.6                56.5              47.5
ES35SRT-1        350 cm              76.9         47.0                77.9              48.0



  D. INTERFERENCE TO OTHER SERVICES

     The modification to the test facility proposed by this application abides by the blanket
     licensing requirements as listed in Part 25.138 and should thus not cause interference to
     other licensed FSS satellites operating in Ka-band. HNS undertakes to comply with the
     limitations placed on the space segment by the provider as a result of satellite
     coordination.

  E. RF RADIATION COMPLIANCE

     Remote Antennas (74 cm, 98 cm, 120 cm, 180 cm)
     The operation of these transmit/receive terminals will be in full compliance with the
     Commission’s radio frequency (RF) exposure guidelines, pursuant to Section
     1.1307(b)(1) through (b)(3) of the Commission’s rules. The attachments to this
     application provide the radiation calculations for the all the various types of terminals
     using the nominal (clear sky) power of the transmitter to be tested. These analyses show
     that the power density levels will not exceed the Maximum Permissible Exposure (MPE)


limit of 1 milliwatt per centimeter squared for the general public as specified in the Office
of Engineering and Technology (OET) Bulletin No. 65 except in the region between the
feed and the reflector. Safety of the general public is assured by an installation procedure
which prevents the public from gaining access to the region between the feed and the
antenna reflector.

Hub Antenna (350 cm)
The operation of the hub will be in full compliance with the Commission’s radio
frequency (RF) exposure guidelines, pursuant to Section 1.1307(b)(1) through (b)(3) of
the Commission’s rules. An attachment to this application provides the radiation
calculation for the 350 cm hub antennas. This analysis makes use of the nominal (clear
sky) power and takes into account the fact that all such antenna are located in a controlled
environment. This analysis shows that the power density levels will not exceed the
Maximum Permissible Exposure (MPE) limit of 5 milliwatt per centimeter squared for
persons in Occupational/controlled environment as specified in the Office of Engineering
and Technology (OET) Bulletin No. 65 except in the region between the feed and the
reflector.



Document Created: 2005-02-14 11:03:12
Document Modified: 2005-02-14 11:03:12

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