Sec. 21.913  Signal booster stations.

    (a) Authorizations for Multipoint Distribution Service (MDS) booster 
stations may be granted to an MDS applicant, conditional licensee or 
licensee, to an Instructional Television Fixed Service (ITFS) applicant, 
permittee or licensee, or to a third party with a fully-executed lease 
agreement with an MDS or ITFS applicant, conditional licensee, 
permittee, or licensee. A signal booster station may not extend service 
beyond the boundaries of an MDS station's protected service area. No 
booster station may be authorized for the retransmission of signals from 
an MDS, ITFS, or OFS station without the written consent of the licensee 
of the station whose signals are retransmitted.
    (b) In addition to the other application requirements of this part, 
each application for a signal booster station that would retransmit an 
MDS signal must certify that the proposed booster station site is within 
the protected service area, as defined in Secs. 21.902(d) and 21.933, of 
the MDS station.
    (c) In addition to the other application requirements of this part, 
each application for a signal booster station that would retransmit an 
MDS signal must state in the application that it has prepared a study 
which demonstrates that the power flux density at the edge of the MDS 
protected service area does not exceed -73.0 dBW/m2 at 
locations for which there is an unobstructed signal path to the 
boundary.
    (d) In addition to the other application requirements of this part, 
each application for a signal booster station must state in the 
application that is has prepared a study which demonstrates that the 
proposed booster station will cause no harmful interference to co-
channel and adjacent-channel existing or previously-proposed ITFS and 
MDS stations with transmitters within 80.5 kilometers (50 miles) of the 
proposed booster station's transmitter site.
    (e) In addition to the other application requirements of this part, 
each application must include a written consent statement of the 
licensee of each MDS, ITFS, and OFS station whose signal is 
retransmitted.
    (f) The output power of the signal booster transmitter station must 
not exceed 18 dBW EIRP.
    (g) An MDS or ITFS licensee may install and commence operation of a 
signal booster station that has a maximum power level of -9 dBW EIRP and 
that does not extend service beyond the boundaries of an MDS station's 
protected service area or beyond an ITFS licensee's registered receive 
site, subject to the condition that for sixty (60) days after 
installation, no objection or petition to deny is filed by an authorized 
co-channel or adjacent

[[Page 73]]

channel ITFS or MDS station with a transmitter within 8.0 kilometers (5 
miles) of the coordinates of the primary transmitter of the signal 
booster. An MDS or ITFS licensee seeking to install a signal booster 
under this Section must, within 48 hours after installation, submit a 
certification that:
    (1) The maximum power level of the signal booster transmitter does 
not exceed -9 dBW EIRP;
    (2) A description of the signal booster technical specifications 
(including antenna gain and azimuth), the coordinates of the booster and 
receivers, and the street address of the signal booster;
    (3) No registered receiver of an ITFS E or F channel station, 
constructed prior to May 26, 1983, is located within a 1.6 kilometer (1 
mile) radius of the coordinates of the booster, or in the alternative, 
that a consent statement has been obtained from the affected ITFS 
licensee;
    (4) No environmental assessment location as defined at Sec. 1.1307 
of this chapter is affected by installation and/or operation of the 
signal booster;
    (5) Each MDS and/or ITFS station licensee with protected service 
areas or registered receivers within a 8.0 kilometer (5 mile) radius of 
the coordinates of the booster has been given notice of its 
installation;
    (6) Consent has been obtained from each MDS or ITFS station licensee 
whose signal is repeated by the signal booster;
    (7) The signal booster site is within the protected service area of 
the MDS station, if the signal of an MDS station is repeated;
    (8) The power flux density at the edge of the MDS station's 
protected service area does not exceed -73.0 dBW/m2, if the 
signal of an MDS station is repeated;
    (9) The antenna structure will extend less than 6.10 meters (20 
feet) above the ground or natural formation or less than 6.10 meters (20 
feet) above an existing manmade structure (other than an antenna 
structure); and
    (10) The MDS or ITFS licensee understands and agrees that in the 
event harmful interference is claimed by the filing of an objection or 
petition to deny, the licensee must terminate operation within two (2) 
hours of written notification by the Commission, and must not recommence 
operation until receipt of written authorization to do so by the 
Commission.
[ 55 FR 46012 , Oct. 31, 1990, as amended at  56 FR 57599 , Nov. 13, 1991; 
 58 FR 11798 , Mar. 1, 1993;  58 FR 44896 , Aug. 25, 1993;  60 FR 36554 , July 
17, 1995]