Sec. 2.1400  Application for advance approval under part 73.

    (a) An original application for advance approval of a subscription 
TV (STV) system and one copy thereof must be filed by the party who will 
be responsible for the conformance of the system with the subscription 
TV standards specified in part 73 of the Rules. The application must 
include information to show that the system conforms to the requirements 
of Sec. 73.644(b).
    (b) Advance approval may be applied for and granted in accordance 
with and subject to the following conditions and limitations:
    (1) A separate request for each different technical system must be 
made by the applicant in writing.
    (2) The applicant must certify that the application was prepared by 
or under the direction of the applicant and that the facts set forth are 
true and correct to the best of the applicant's knowledge and belief.
    (3) The applicant must identify the technical system by a name or 
type number and define the system in terms of its technical 
characteristics; a functional block diagram must be included. In 
addition, a complete description of the encoded aural and visual 
baseband and transmitted signals and of the encoding equipment used by 
the applicant must be supplied. These descriptions must include 
equipment circuit diagrams and photographs, and diagrams or 
oscillographs of both baseband and transmitted aural and visual signal 
waveforms and of the signal basebands and occupied bandwidths. If aural 
subcarriers are to be used for transmitting aural portion of the 
subscription program, for decoder control, or for other purposes, a full 
description and specifications of the multiplex subcarrier signals and 
all modulation levels must be included.
    (4) Preliminary test data must be submitted to show system 
capability with regard to compliance with the criteria set forth in 
Sec. 73.644(b).
    (5) The applicant must identify the specific requirements of 
Secs. 73.682, 73.687 and 73.699 (Figures 6 and 7) from which the 
transmitted signal will normally deviate.
    (6) The applicant must specify the method to be used in determining 
and maintaining the operating power of the transmitter if the procedures 
given in Sec. 73.663 cannot be used due to suppression of the 
synchronizing pulses or for

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other reasons. If the operating power of the station must be reduced to 
accommodate the encoded aural or video signal, the operating power 
limitations must be specified.
    (7) The applicant must supply any additional information and test 
data requested by the FCC, to show to its satisfaction that the criteria 
given in Sec. 73.644(b) are met.
    (8) The information submitted by the applicant may be subject to 
check by field tests conducted without expense to the FCC or, if deemed 
necessary, at the laboratory or in the field by FCC personnel. This may 
include the actual submission of equipment for system testing under the 
provisions of Sec. 2.945 of part 2 of the Rules.
    (9) No technical system will be deemed approved unless and until the 
FCC has notified the applicant in writing of the approval. Such 
notification of approval will be by letter to the applicant.
    (10) Approval by the FCC is limited to a determination that the 
particular technical system (the scheme for encoding and decoding the 
subscription TV signal) is capable of meeting the criteria given in 
Sec. 73.644(b).
    (11) The FCC will maintain a listing of approved technical systems.
    (c) Multichannel sound may be transmitted for stereophonic or 
bilingual service with encoded subscription programs provided the 
technical operating specifications for this service are included in the 
application for advance system approval.
    (d) Subscriber decoder devices must comply with any applicable 
provisions of subpart H, part 15 of the FCC Rules for TV interface 
devices.
    (e) No modifications may be made by either the applicant or the user 
of a system having advance FCC approval that would change any of the 
operating conditions as submitted in the application for advance 
approval. Should system modifications be necessary, a new application 
must be submitted in accordance with the requirements of this section.
[ 48 FR 56391 , Dec. 21, 1983]

Subpart N--FCC Procedure for Testing Class A, B and S Emergency Position 
                    Indicating Radiobeacons (EPIRBs)

    Source:  56 FR 11683 , Mar. 20, 1991, unless otherwise noted.

                                 General