[Federal Register Volume 60, Number 82 (Friday, April 28, 1995)]
[Rules and Regulations]
[Pages 20909-20914]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-10427]



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FEDERAL COMMUNICATIONS COMMISSION

47 CFR Part 2

[ET Docket No. 91-280; FCC 95-114]


Mobile-Satellite Service at 148-149.9 MHz

AGENCY: Federal Communications Commission.

ACTION: Final Rule; Petition for Reconsideration.

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SUMMARY: By this action, we deny a Petition for Reconsideration filed 
by STARSYS, Inc. (STARSYS). In its petition, STARSYS requests either 
that the Commission increase the permissible duty cycle from 0.25% to 
1.0% per 15 minute interval for those systems in the low-Earth orbit 
(LEO) mobile-satellite service (MSS) operating in the 148-149.9 MHz 
band that use code division multiple access (CDMA) spread spectrum 
systems and which do not utilize a system that avoids frequencies used 
by other services in [[Page 20910]] this band, or in the alternative, 
that the Commission exempt from the duty cycle limitation CDMA systems 
operating below a certain power density. We are taking this action 
because we continue to believe that the power density and duty cycle 
requirements we adopted are necessary to prevent interference to 
incumbent government fixed and mobile operations that will share this 
band with LEO MSS on a co-primary basis.

EFFECTIVE DATE: May 30, 1995.

FOR FURTHER INFORMATION CONTACT:
Ray LaForge, Office of Engineering and Technology, telephone (202) 739-
0598.

SUPPLEMENTARY INFORMATION: This is a summary of the Commission's 
Memorandum Opinion and Order in ET docket No. 91-280, adopted March 14, 
1995 and released March 30, 1995. The complete text of this Memorandum 
Opinion and Order is available for inspection and copying during normal 
business hours in the FCC Public Reference Center (Room 239), 1919 M 
Street, NW, Washington, DC. The complete text of this Memorandum 
Opinion and Order also may be purchased from the Commission's 
duplication contractor, International Transcription Service, Inc., 2100 
M Street, NW, Suite 140, Washington DC 20036, (202) 857-3800.

Summary of Memorandum Opinion and Order

    1. STARSYS argued that the Commission has created redundant and 
excessive interference protection criteria by adopting both maximum 
power density and duty cycle limitations. It contends that either 
limitation alone is sufficient to provide protection to existing fixed 
and mobile government users. STARSYS requested that the Commission 
exempt LEO MSS systems using CDMA spread spectrum that operate with 
E.I.R.P. power densities below -16 dBW/4kHz from compliance with the 
0.25% per 15 minute transmission duty cycle limitation. Alternatively, 
STARSYS requests that the Commission modify the 0.25% per 15 minute 
transmission time limit for CDMA systems to 1.0% per 15 minute period.
    2. STARSYS stated that the duty cycle limit of 0.25% per 15 minute 
interval was intended to accommodate a data transmission rate of 4800 
bits per second (bps) that was specified in its 1990 license 
application to construct and operate a system using CDMA spread 
spectrum. However, it now claims that unanticipated interference in the 
148-149.9 MHz band may force it to use a lower data transmission rate 
of 1200 bps, which, with a duty cycle of 0.25% per 15 minute interval, 
will result in an intolerably low data throughput. It argued that with 
a duty cycle of 1.0% per 15 minute period, its system would achieve 
throughput approximately equivalent to the throughput achieved with a 
data rate of 4800 bps when used with a duty cycle of 0.25% per 15 
minute period. Accordingly, STARSYS requested that the duty cycle be 
increased to 1.0% to accommodate its lowering of the transmission rate 
to 1200 bps.
    3. NTIA, as representative of the government users of the 148-149.9 
MHz band, opposed STARSYS' request for relaxation of the duty cycle 
requirement. NTIA submitted a report to the Commission through the 
Interdepartment Radio Advisory Committee. The report concludes that in 
cases in which multiple earth stations exist within range of specific 
government mobile systems, the duty cycle limitation adopted by the 
Commission is necessary to protect these government systems.
    4. We recognize that the power and duty cycle requirements will 
impose limitations on satellite operations in the 148-149.9 MHz band. 
However, we must ensure that adequate protection is afforded to the 
incumbent government users of the band. The regulations adopted in the 
Report and Order, ET Docket 92-28, 8 FCC Rcd 812, 58 FR 16360 (March 
26, 1993), to provide this protection were developed through lengthy 
negotiations between the Commission and NTIA and in consultation with 
potential LEO MSS users. Therefore, to the extent STARSYS is requesting 
a change of our rules that now impose both the power density and duty 
cycle limitations, we do not find an adequate basis in the petition or 
the comments to make such a change. Moreover, to the extent STARSYS is 
requesting a waiver of these rules, we find that STARSYS has failed to 
sustain its heavy burden for a waiver. STARSYS has not shown how 
exempting it from the duty cycle requirement will better serve the 
public interest, particularly in light of NTIA's report, with which we 
agree, that the duty cycle limitation is necessary to protect 
government users in this band.
    5. We also deny STARSYS' request to modify the duty cycle 
limitation for CDMA systems. As we have stated above, NTIA's report 
indicates that the duty cycle limitation we adopted is necessary to 
protect government users in this band. The development and provision of 
LEO MSS must not result in unacceptable interference to those users. 
Therefore, we will not modify the duty cycle limitation for CDMA 
systems.
    6. Accordingly, STARSYS' Petition for Reconsideration is DENIED. We 
are also republishing in the Amendatory Text a copy of the final rules 
since the original rules were not depicted accurately at the time of 
the Report and Order. This action is taken pursuant to Sections 4(i), 
7(a), 303(c), 303(g), and 303(r) of the Communications Act of 1934, as 
amended, 47 U.S.C. Sections 154(i), 157(a), 303(c), 303(g) and 303(r).

List of Subjects in 47 CFR Part 2

    Radio.

Federal Communications Commission.
William F. Caton,
Acting Secretary.

Amendatory Text

    Part 2 of Chapter I of Title 47 of the Code of Federal Regulations 
is amended as follows:

PART 2--FREQUENCY ALLOCATIONS AND RADIO TREATY MATTERS: GENERAL 
RULES AND REGULATIONS

    1. The authority citation in Part 2 continues to read:

    Authority: Sec. 4, 302, 303, and 307 of the Communications Act 
of 1934, as amended, 47 U.S.C. Sections 154, 154(i), 302, 303, 
303(r), and 307, unless otherwise noted.

    2. Section 2.106, the Table of Frequency Allocations is amended as 
follows:
    a. The entries for 137.0-138.0, 146.0-149.9, 149.9-150.05, 399.9-
400.05, and 400.15-401.0 MHz are removed and new entries for 137-138.0, 
146.0-148, 148-149.9, 149.9-150.05, 399.9-400.05, and 400.15-401 MHz 
are added in numerical order.
    b. International Footnotes Nos. 599A, 599B, 608A, 608B, 608C, 609B, 
647A, and 647B are added.
    c. United States (US) Footnotes US318, US319, US320, US322, US323, 
US324, US325, and US326 are
    The additions, and revisions read as follows:


Sec. 2.106  Table of Frequency Allocations.

* * * * *

                                                                        
[[Page 20911]]                                                          
----------------------------------------------------------------------------------------------------------------
               International Table                        United States Table            FCC use designators    
----------------------------------------------------------------------------------------------------------------
    Region 1         Region 2         Region 3        Government     Non-Government                  Special-use
 allocation MHz   allocation MHz   allocation MHz   allocation MHz   allocation MHz   Rule part(s)   frequencies
(1)              (2)              (3)              (4)              (5)              (6)                    (7) 
----------------------------------------------------------------------------------------------------------------
                                                                                                                
        *                  *                  *                  *                  *                  *        
                                                        *                                                       
137.0-137.025    137.0-137.025    137.0-137.025    137.0-137.025    137.0-137.025    ..............             
SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SATELLITE                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-       COMMUNICATION             
 Earth)           Earth)           Earth)           Earth)           Earth)           S (25)                    
METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-                             
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth)           Earth)           Earth)           Earth)           Earth)                                     
SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH                              
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth)           Earth)           Earth)           Earth)           Earth)                                     
MOBILE-          MOBILE-          MOBILE-          MOBILE-          MOBILE-                                     
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth) 599B      Earth) 599B      Earth) 599B      Earth) 599B      Earth) 599B                                
Fixed            Fixed            Fixed             US318 US319      US318 US319                                
Mobile except    Mobile except    Mobile except     US320            US320                                      
 aeronautical     aeronautical     aeronautical                                                                 
 mobile (R)       mobile (R)       mobile (R)                                                                   
596 597 598 599  596 597 598 599  596 597 598 599  599A             599A                                        
 599A             599A             599A                                                                         
137.025-137.175  137.025-137.175  137.025-137.175  137.025-137.175  137.025-137.175                             
SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SATELLITE                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-       COMMUNICATION             
 Earth)           Earth)           Earth)           Earth)           Earth)           S (25)                    
METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-                             
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth)           Earth)           Earth)           Earth)           Earth)                                     
SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH                              
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth)           Earth)           Earth)           Earth)           Earth)                                     
MOBILE-          MOBILE-          MOBILE-          MOBILE-          MOBILE-                                     
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth) 599B      Earth) 599B      Earth) 599B      Earth) 599B      Earth) 599B                                
Fixed            Fixed            Fixed             US318 US319      US318 US319                                
Mobile except    Mobile except    Mobile except     US320            US320                                      
 aeronautical     aeronautical     aeronautical                                                                 
 mobile (R)       mobile (R)       mobile (R)                                                                   
596 597 598 599  596 597 598 599  596 597 598 599  599A             599A                                        
 599A             599A             599A                                                                         
137.175-137.825  137.175-137.825  137.175-137.825  137.175-137.825  137.175-137.825                             
SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SATELLITE                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-       COMMUNICATION             
 Earth)           Earth)           Earth)           Earth)           Earth)           S (25)                    
METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-                             
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth)           Earth)           Earth)           Earth)           Earth)                                     
SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH                              
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth)           Earth)           Earth)           Earth)           Earth)                                     
MOBILE-          MOBILE-          MOBILE-          MOBILE-          MOBILE-                                     
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth) 599B      Earth) 599B      Earth) 599B      Earth) 599B      Earth) 599B                                
Fixed            Fixed            Fixed             US318 US319      US318 US319                                
Mobile except    Mobile except    Mobile except     US320            US320                                      
 aeronautical     aeronautical     aeronautical                                                                 
 mobile (R)       mobile (R)       mobile (R)                                                                   
596 597 598 599  596 597 598 599  596 597 598 599  599A             599A                                        
 599A             599A             599A                                                                         
137.825-138.0    137.825-138.0    137.825-138.0    137.825-138.0    137.825-138.0                               
[[Page 20912]]                                                                                                  
                                                                                                                
SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SPACE OPERATION  SATELLITE                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-       COMMUNICATION             
 Earth)           Earth)           Earth)           Earth)           Earth)           S (25)                    
METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-  METEOROLOGICAL-                             
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth)           Earth)           Earth)           Earth)           Earth)                                     
SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH                              
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth)           Earth)           Earth)           Earth)           Earth)                                     
MOBILE-          MOBILE-          MOBILE-          MOBILE-          MOBILE-                                     
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (space-to-       (space-to-       (space-to-       (space-to-       (space-to-                                 
 Earth) 599B      Earth) 599B      Earth) 599B      Earth) 599B      Earth) 599B                                
Fixed            Fixed            Fixed             US318 US319      US318 US319                                
Mobile except    Mobile except    Mobile except     US320            US320                                      
 aeronautical     aeronautical     aeronautical                                                                 
 mobile (R)       mobile (R)       mobile (R)                                                                   
596 597 598 599  596 597 598 599  596 597 598 599  599A             599A                                        
 599A             599A             599A                                                                         
        *                  *                  *                  *                  *                  *        
                                                        *                                                       
146.0-148        146.0-148        146.0-148        146.0-148        146.0-148                                   
FIXED            AMATEUR          AMATEUR          ...............  AMATEUR          AMATEUR (97)               
MOBILE except                     FIXED                                                                         
 aeronautical                     MOBILE                                                                        
 Mobile (R)                       607                                                                           
608                                                                                                             
148-149.9        148-149.9        148-149.9        148-149.9        148-149.9                                   
FIXED            FIXED            FIXED            FIXED            MOBILE-          SATELLITE                  
MOBILE except    MOBILE           MOBILE           MOBILE            SATELLITE        COMMUNICATION             
 aeronautical    MOBILE-          MOBILE-          MOBILE-           (Earth-to-       (25)                      
 mobile (R)       SATELLITE        SATELLITE        SATELLITE        space) 599B                                
MOBILE-           (Earth-to-       (Earth-to-       (Earth-to-       US319 US320                                
 SATELLITE        space) 599B      space) 599B      space) 599B      US323 US325                                
 (Earth-to-                                         US319 US320                                                 
 space) 599B                                        US323 US325                                                 
608 608A 608C    608 608A 608C    608 608A 608C    608 608A US10    608 608A US10                               
                                                    G30                                                         
149.9-150.05     149.9-150.05     149.9-150.05     149.9-150.05     149.9-150.05                                
RADIO-           RADIO-           RADIO-           RADIO-           RADIO-                                      
 NAVIGATION-      NAVIGATION-      NAVIGATION-      NAVIGATION-      NAVIGATION-                                
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
LAND MOBILE-     LAND MOBILE-     LAND MOBILE-     LAND MOBILE-     LAND MOBILE-                                
 SATELLITE        SATELLITE        SATELLITE        SATELLITE        SATELLITE                                  
 (Earth-to-       (Earth-to-       (Earth-to-       (Earth-to-       (Earth-to-                                 
 space) 599       space) 599       space) 599       space) 599B      space) 599B                                
 609B             609B.            609B.            US319 US322.     US319 US322.                               
608B 609 609A    608B 609 609A    608B 609 609A    608B 609A        608B 609A                                   
        *                  *                  *                  *                  *                  *        
                                                        *                                                       
399.9-400.05     399.9-400.05     399.9-400.05     399.9-400.05     399.9-400.05     ..............             
RADIO-           RADIO-           RADIO-           RADIONAVIGATION- RADIONAVIGATION-                            
 NAVIGATION-      NAVIGATION-      NAVIGATION-      SATELLITE        SATELLITE                                  
 SATELLITE        SATELLITE        SATELLITE       MOBILE-          MOBILE-                                     
                                                    SATELLITE        SATELLITE                                  
                                                    (Earth-to-       (Earth-to-                                 
                                                    space) US319     space) US319                               
                                                    US326            US326                                      
609 645B         609 645B         609 645B         645B             645B                                        
        *                  *                  *                  *                  *                  *        
                                                        *                                                       
400.15-401       400.15-401       400.15-401       400.15-401       400.15-401                                  
[[Page 20913]]                                                                                                  
                                                                                                                
METEOROLOGICAL   METEOROLOGICAL   METEOROLOGICAL   METEOROLOGICAL   METEOROLOGICAL   SATELLITE                  
 AIDS             AIDS             AIDS             AIDS             AIDS             COMMUNICA-                
METEORO-LOGICAL- METEORO-LOGICAL- METEORO-LOGICAL-  (radiosonde)     (radiosonde)     (25)                      
 SATELLITE        SATELLITE        SATELLITE       METEOROLOGICAL-  METEOROLOGICAL-                             
 (space-to-       (space-to-       (space-to-       SATELLITE        SATELLITE                                  
 Earth)           Earth)           Earth)           (space-to-       (space-to-                                 
SPACE RESEARCH   SPACE RESEARCH   SPACE RESEARCH    Earth)           Earth)                                     
 (space-to-       (space-to-       (space-to-      SPACE RESEARCH   SPACE RESEARCH                              
 Earth) 647A      Earth) 647A      Earth) 647A      (space-to-       (space-to-                                 
MOBILE-          MOBILE-          MOBILE-           Earth) 647A      Earth) 647A                                
 SATELLITE        SATELLITE        SATELLITE       MOBILE-          MOBILE-                                     
 (space-to-       (space-to-       (space-to-       SATELLITE        SATELLITE                                  
 Earth) 599B      Earth) 599B      Earth) 599B      (space-to-       (space-to-                                 
Space-Operation  Space-Operation  Space-Operation   Earth) 599B      Earth) 599B                                
 (space-to-       (space-to-       (space-to-       US319 US320      US319 US320                                
 Earth)           Earth)           Earth)           US324            US324                                      
                                                   Space Operation  Space Operation                             
                                                    (space-to-       (space-to-                                 
                                                    Earth)           Earth)                                     
647 647B         647 647B         647 647B         647 647B US70    647 647B US70                               
        *                  *                  *                  *                  *                  *        
                                                        *                                                       
----------------------------------------------------------------------------------------------------------------

International Footnotes

* * * * *
    599A The use of the band 137-138 MHz by the mobile-satellite 
service is subject to the application of the coordination and 
notification procedures set forth in Resolution RES46 (WARC-92). 
However, coordination of a space station of the mobile-satellite 
service with respect to terrestrial services is required only if the 
power flux-density produced by the station exceeds -125 dB(W/
m2/4 kHz) at the Earth's surface. The above power flux-density 
limit shall apply until such time as a competent world 
administrative radio conference revises it. In making assignments to 
the space stations in the mobile-satellite service in the above 
band, administrations shall take all practicable steps to protect 
the radio astronomy service in the 150.05-153 MHz band from harmful 
interference from unwanted emissions.
    599B The use of the bands 137-138 MHz, 148-149.9 MHz and 400.15-
401 MHz by the mobile-satellite service and the band 149.9-150.05 
MHz by the land mobile-satellite service is limited to non-
geostationary-satellite systems.
* * * * *
    608A The use of the band 148-149.9 MHz by the mobile-satellite 
service is subject to the application of the coordination and 
notification procedures set forth in Resolution RES46 (WARC-92). The 
mobile-satellite service shall not constrain the development and use 
of fixed, mobile and space operation services in the band 148-149.9 
MHz. Mobile earth stations in the mobile-satellite service shall not 
produce a power flux-density in excess of -150 dB(W/m2/4 kHz) 
outside national boundaries.
    608B The use of the band 149.9-150.05 MHz by the land mobile-
satellite service is subject to the application of the coordination 
and notification procedures set forth in Resolution RES46 (WARC-92). 
The land mobile-satellite service shall not constrain the 
development and use of the radionavigation-satellite service in the 
band 149.9-150.05 MHz. Land mobile earth stations of the land 
mobile-satellite service shall not produce power flux-density in 
excess of -150 dB(W/m2/4kHz) outside national boundaries.
    608C Stations of the mobile-satellite service in the band 148-
149.9 MHz shall not cause harmful interference to, or claim 
protection from stations of the fixed or mobile services in the 
following countries: Algeria, the Federal Republic of Germany, Saudi 
Arabia, Australia, Austria, Bangladesh, Belarus, Belgium, Brunei 
Darussalam, Bulgaria, Cameroon, Canada, Cyprus, Colombia, Congo, 
Cuba, Denmark, Egypt, the United Arab Emirates, Ecuador, Spain, 
Ethiopia, the Russian Federation, Finland, France, Ghana, Greece, 
Honduras, Hungary, Iran, Ireland, Iceland, Israel, Italy, Japan, 
Jordan, Kenya, Libya, Liechtenstein, Luxembourg, Malaysia, Mali, 
Malta, Mauritania, Mozambique, Namibia, Norway, New Zealand, Oman, 
Pakistan, Panama, Papua New Guinea, the Netherlands, Phillippines, 
Poland, Portugal, Qatar, Syria, Romania, the United Kingdom, 
Singapore, Sri Lanka, Sweden, Switzerland, Suriname, Swaziland, 
Tanzania, Chad, the Czech and Slovak Federal Republic, Thailand, 
Tunisia, Turkey, Ukraine, Yemen and Yugoslavia that operate in 
accordance with the Table of Frequency Allocations.
* * * * *
    609B In the band 149.9-150.05MHz, the allocation to the land 
mobile-satellite service shall be on a secondary basis until 1 
January 1997.
* * * * *
    647A The band 400.15-401 MHz is also allocated to the space 
research service in the space-to-space direction for communications 
with manned space vehicles. In this application, the space research 
service will not be regarded as a safety service.
    647B The use of the band 400.15-401 MHz by the mobile-satellite 
service is subject to the application of the coordination and 
notification procedures set forth in Resolution RES46 (WARC-92). 
However, coordination of a space station of the mobile-satellite 
service with respect to terrestrial services is required only if the 
power flux-density produced by the station exceeds -125 dB(W/
m2/4kHz) at the Earth's surface. The above power flux-density 
limit shall apply until such time as a competent world 
administrative radio conference revises it. In making assignments to 
the space stations in the mobile-satellite service in the above 
band, administrations shall take all practicable steps to protect 
the radio astronomy service in the band 406.1-410 MHz from harmful 
interference from unwanted emissions.
* * * * *

United States (US) Footnotes

* * * * *
    US318 Until January 1, 2000, the use of the 137-138 MHz band by 
the mobile-satellite service will be secondary to Government 
satellite operations in the subbands: 137.333-137.367, 137.485-
137.515, 137.605-137.635 and 137.753-137.787 MHz.
    US319 In the 137-138, 148-149.9, 149.9-150.05, 399.9-400.05, and 
400.15-401 MHz bands, Government stations in the mobile-satellite 
service shall be limited to earth stations operating with non-
Government satellites.
    US320 Use of the 137-138, 148-149.9, and 400.15-401 MHz bands by 
the mobile-satellite service is limited to non-voice, non-
geostationary satellite systems and may include satellite links 
between land earth stations at fixed locations.
* * * * *
    US322 The 149.9-150.05 MHz band is allocated to the mobile-
satellite service (Earth-to-space) on a primary basis after 1 
January 1997 and shall be limited to non- [[Page 20914]] voice, non-
geostationary satellite systems, including satellite links between 
land earth stations. Before 1 January 1997 use of this band on a 
secondary basis for the mobile satellite service is allowed for land 
earth stations at fixed locations.
    US323 In the 148-149.9 MHz band, no individual mobile earth 
station shall transmit, on the same frequency being actively used by 
fixed and mobile stations and shall transmit no more than 1% of the 
time during any 15 minute period; except, individual mobile earth 
stations in this band that do not avoid frequencies actively being 
used by the fixed and mobile services shall not exceed a power 
density of -16 dBW/4kHz and shall transmit no more than 0.25% of the 
time during any 15 minute period. Any single transmission from any 
individual mobile earth station operating in this band shall not 
exceed 450 ms in duration and consecutive transmissions from a 
single mobile earth station on the same frequency shall be separated 
by at least 15 seconds. Land earth stations in this band shall be 
subject to electromagnetic compatibility analysis and coordination 
with terrestrial fixed and mobile stations.
    US324 Government and non-Government satellite systems in the 
400.15-401 MHz band shall be subject to electromagnetic 
compatibility analysis and coordination.
    US325 In the band 148-149.9 MHz fixed and mobile stations shall 
not claim protection from land earth stations in the mobile-
satellite service that have been previously coordinated; Government 
fixed and mobile stations exceeding 27 dBW EIRP, or an emission 
bandwidth greater than 38 kHz, will be coordinated with existing 
mobile-satellite service space stations.
    US326 The 399.9-400.05 MHz band is allocated to the mobile-
satellite service (Earth-to-space) on a primary basis after January 
1, 1997 and shall be limited to non-voice, non-geostationary 
satellite systems, including satellite links between land earth 
stations.
* * * * *
[FR Doc. 95-10427 Filed 4-27-95; 8:45 am]
BILLING CODE 6712-01-M