below the mean power of the transmitter.

(2) All equipment operating on frequencies higher than 25 MHz.

(3) All equipment where the antenna is an integral part of, and attached directly to the transmitter.

(4) Other types of equipment as required, when deemed necessary by the Commission.

§ 2.995 Measurements required: Frequency stability.

(a) The frequency stability shall be measured with variation of ambient temperature as follows:

(1) From -30° to +50° centigrade for all equipment except that specified in paragraphs (a)(2) and (3) of this section.

(2) From -20° to +50° centrigrade for equipment to be licensed for use in the Maritime Services under part 80 of this chapter, except for Class A, B, and S Emergency Position Indicating Radiobeacons (EPIRBS), and equipment to be licensed for use above 952 MHz at operational fixed stations in all services, stations in the Local Television Transmission Service and Pointto-Point Microwave Radio Service under part 21 of this chapter, and equipment licensed for use aboard aircraft in the Aviation Services under part 87 of this chapter.

(3) From 0° to +50° centigrade for equipment to be licensed for use in the Radio Broadcast Services under Part 73 of this chapter.

(b) Frequency measurements shall be made at the extremes of the specified temperature range and at intervals of not more than 10° centigrade through the range. A period of time sufficient to stabilize all of the components of the oscillator circuit at each temperature level shall be allowed prior to frequency measurement. The short term transient effects on the frequency of the transmitter due to keying (except for broadcast transmitters) and any heating element cycling normally occurring at each ambient temperature level also shall be shown. Only the portion or portions of the transmitter containing the frequency determining and stabilizing circuitry need be subjected to the temperature variation test.

(c) In addition to all other requirements of this section, the following in

formation is required for equipment incorporating heater type crystal oscillators to be used in mobile stations, for which type acceptance is first requested after March 25, 1974, except for battery powered, hand carried, portable equipment having less than 3 watts mean output power.

(1) Measurement data showing variation in transmitter output frequency from a cold start and the elapsed time necessary for the frequency to stabilize within the applicable tolerance. Tests shall be made after temperature stabilization at each of the ambient temperature levels; the lower temperature limit, 0° centigrade and +30° centigrade with no primary power applied.

(2) Beginning at each temperature level specified in paragraph (c)(1) of this section, the frequency shall be measured within one minute after application of primary power to the transmitter and at intervals of no more than one minute thereafter until ten minutes have elapsed or until sufficient measurements are obtained to indicate clearly that the frequency has stabilized within the applicable tolerance, whichever time period is greater. During each test, the ambient temperature shall not be allowed to rise more than 10° centigrade above the respective beginning ambient temperature level.

(3) The elapsed time necessary for the frequency to stabilize within the applicable tolerance from each beginning ambient temperature level as determined from the tests specified in this paragraph shall be specified in the instruction book for the transmitter furnished to the user.

(4) When it is impracticable to subject the complete transmitter to this test because of its physical dimensions or power rating, only its frequency determining and stabilizing portions need be tested.

(d) The frequency stability shall be measured with variation of primary supply voltage as follows:

(1) Vary primary supply voltage from 85 to 115 percent of the nominal value for other than hand carried battery equipment.

(2) For hand carried, battery powered equipment, reduce primary supply voltage to the battery operating end point

which shall be specified by the manufacturer.

(3) The supply voltage shall be measured at the input to the cable normally provided with the equipment, or at the power supply terminals if cables are not normally provided. Effects on frequency of transmitter keying (except for broadcast transmitters) and any heating element cycling at the nominal supply voltage and at each extreme also shall be shown.

(e) When deemed necessary, the Commission may require tests of frequency stability under conditions in addition to those specifically set out in paragraphs (a), (b), (c), and (d) of this section. (For example measurements showing the effect of proximity to large metal objects, or of various types of antennas, may be required for portable equipment.)

[39 FR 5919, Feb. 14, 1974, as amended at 51 FR 31304, Sept. 2, 1986; 56 FR 11682, Mar. 20, 1991]

§2.997 Frequency spectrum to be investigated.

In all of the measurements set forth in §§2.991 and 2.993 of this part, the spectrum should be investigated from the lowest radio frequency generated in the equipment up to at least the 10th harmonic of the carrier frequency or to the highest frequency practicable in the present state of the art of measuring techniques, whichever is lower. Particular attention should be paid to harmonics and subharmonics of the carrier frequency as well as to those frequencies removed from the carrier by multiples of the oscillator frequency. Radiation at the frequencies of multipler stages should also be checked. The amplitude of spurious emissions which are attenuated more than 20 dB below the permissible value need not be reported.

$2.999 Measurement procedure.

The measurement procedures employed shall be in accordance with the requirements set forth in §2.947. In addition, any specific test requirements set forth in the particular rules governing the equipment for which type acceptance is requested shall apply.

[42 FR 44987, Sept. 8, 1977]

$2.1001 Changes in type accepted equipment.

(a) Equipment of the same type is defined for purposes of type acceptance as being equipment which is electrically and mechanically interchangeable and in addition will have the same basic tube or semiconductor lineup, frequency multiplication, basic frequency determining and stabilizing circuitry, basic modulator circuit and maximum power rating. Variations in electrical and mechanical construction, other than the items indicated above are per

mitted provided the variation or change is made in compliance with the requirements of paragraphs (b), (c), and (d) of this section.

(b) Two classes of permissive changes may be made in type accepted equipment without requiring a new application for and grant of type acceptance.

(1) A Class I permissive change includes those modifications in the equipment which do not change the equipment characteristics beyond the rated limits established by the manufacturer and accepted by the Commission when type acceptance is granted, and which do not change the type of equipment as defined in paragraph (a) of this section. No filing with the Commission is required for a Class I permissive change.

(2) A Class II permissive change includes those modifications which bring the performance of the equipment outside the manufacturer's rated limits as originally filed but not below the minimum requirements of the applicable rules, and do not change the type of equipment as defined in paragraph (a) of this section. When a Class II permissive change is made by the grantee, he shall supply the Commission with complete information and results of tests of the characteristics affected by such change. The modified equipment shall not be marketed under the existing grant of type acceptance prior to acknowledgement by the Commission that the change is acceptable.

(3) When a Class II permissive change is made by other than the grantee of type acceptance, the information and data specified in paragraph (b)(2) of this section shall be supplied by the person making the change. The modified equipment shall not be operated

under an authorization of the Commission prior to acknowledgement by the Commission that the change is acceptable.

(c) A grantee desiring to make a change other than a permissive change as described in paragraph (b) of this section shall file an application on FCC Form 731 accompanied by the required fees. The grantee shall attach a description of the change(s) to be made and a statement indicating whether the change(s) will be made in all units (including previous production) or will be made only in those units produced after the change(s) is authorized.

(d) If the Commission authorizes the changes requested, it may require the assignment of a new FCC Identifier.

(e) Users shall not modify their own equipment except as provided by paragraphs (b) and (f) of this section.

(f) Equipment type accepted for use in the Amateur Radio Service pursuant to the requirements of Part 97 of this chapter may be modified without regard to the conditions specified in paragraph (b) of this section, provided the following conditions are met:

(1) Any person performing such modifications on equipment used under Part 97 of this chapter must possess a valid amateur radio operator license of the class required for the use of the equipment being modified.

(2) Modifications made pursuant to this paragraph are limited to equipment used at licensed amateur radio stations.

(3) Modifications specified or performed by equipment manufacturers or suppliers must be in accordance with the requirements set forth in paragraph (b) of this section.

(4) Modifications specified or performed by licensees in the Amateur Radio Service on equipment other than that at specific licensed amateur radio stations must be in accordance with the requirements set forth in paragraph (b) of this section.

(5) The station licensee shall be responsible for insuring that modified equipment used at his station will comply with the applicable technical standards in Part 97 of this chapter.

(g) The interconnection of a type accepted AM broadcast stereophonic exciter-generator with a type accepted

AM broadcast transmitter in accordance with the manufacturer's instructions and upon completion of measurements showing that the modified transmitter meets the emission limitation requirements of §73.44 is defined as a Class I permissive change for compliance with this section.

(h) The interconnection of a multiplexing exciter with a type accepted AM broadcast transmitter in accordance with the manufacturer's instructions without electrical or mechanical modification of the transmitter circuits and completion of equipment performance measurements showing the transmitter meets the minimum performance requirements applicable thereto is defined as a Class I permissive change for compliance with this section.

(i) The addition of TV broadcast subcarrier generators to a type accepted TV broadcast transmitter or the addition of FM broadcast subcarrier generators to a type accepted FM broadcast transmitter, provided the transmitter exciter is designed for subcarrier operation without mechanical or electrical alterations to the exciter or other transmitter circuits.

(j) The addition of TV broadcast stereophonic generators to a type accepted TV broadcast transmitter or the addition of FM broadcast stereophonic generators to a type accepted FM broadcast transmitter, provided the transmitter exciter is designed for stereophonic sound operation without mechanical or electrical alterations to the exciter or other transmitter circuits.

(k) The addition of subscription TV encoding equipment for which the FCC has granted advance approval under the provisions of §2.1400 in Subpart M and §73.644(c) of Part 73 to a type accepted transmitter is considered Class I permissive change described in paragraph (b)(1) of this section.

a

27147, July 2, 1984; 49 FR 34014, Aug. 28, 1984; 51 FR 2707, Jan. 21, 1986; 51 FR 39535, Oct. 29, 1986; 51 FR 41628, Nov. 18, 1986]

§2.1003 Information required on identification label for type accepted equipment.

(a) Each equipment for which a type acceptance application is filed on or after May 1, 1981, shall bear an identification plate or label pursuant to $$2.925 and 2.926. The FCC Identifier for such equipment will be validated by the grant of type acceptance issued by the Commission.

(b) For each equipment covered by a type acceptance application filed before May 1, 1981, the identification plate or label shall contain the following:

(1) Name of the grantee of the type acceptance.

(2) The words "FCC TRANSMITTER DATA" followed by the number assigned to the equipment by the grantee. The abbreviations "XMTR" or "TX" may be used in place of the word "TRANSMITTER."

NOTE: If the equipment is a transceiver containing transmitting and receiving capablity and a single identifier is assigned, the words "FCC DATA," followed by the number assigned to the equipment by the grantee shall be used. If the transmitter part and the receiver part are assigned separate identifiers, the marking of paragraph (2) shall be used for the transmitter part and the marking of §2.1045(b)(3) shall be used for the receiver part if the receiver part is subject to the requirement for certification.

(3) Any other statement or labelling requirement imposed by the rules governing the operation of this equipment, except that statements of compliance with equipment approval rules or technical standards may be per- mitted to appear in a clear and recognizable manner elsewhere on the equipment.

(Secs. 4, 303, 307, 48 Stat., as amended, 1066, 1082, 1083; sec. 302, 82 Stat. 290 (47 U.S.C. 154, 302, 303, 307))

[44 FR 17179, Mar. 21, 1979; 44 FR 21021, Apr. 9, 1979, as amended at 45 FR 71356, Oct. 28, 1980]

§2.1005 Equipment for use in the Amateur Radio Service.

(a) The general provisions of §§2.981, 2.983, 2.991, 2.993, 2.997, 2.999, 2.1001, and §2.1003 shall apply to application for

and grants of type acceptance for equipment operated under the requirements of Part 97 of this chapter, the Amateur Radio Service.

(b) When performing the tests specified in §§2.991 and 2.993 of this part, the center of the transmitted bandwidth shall be within the operating frequency band by an amount equal to 50 percent of the bandwidth utilized for the tests. In addition, said tests shall be made on at least one frequency in each of the bands within which the equipment is capable of tuning.

(c) Any supplier of an external radio frequency power amplifier kit as defined by $97.3(z) of this chapter shall comply with the following requirements:

(1) Assembly of one unit of a specific type shall be made in exact accordance with the instructions being supplied with the product being marketed. If all of the necessary components are not normally furnished with the kit, assembly shall be made using the recommended components.

(2) The measurement data required for type acceptance shall be obtained for this unit and submitted with the type acceptance application. Unless otherwise requested, it is not necessary to submit this unit with the application.

(3) A copy of the exact instructions which will be provided for assembly of the equipment shall be provided in addition to other material required by §2.983 of this part.

(4) The identification label required by §§2.925 and 2.1003 of this part shall be permanently affixed to the assembled unit and shall be of sufficient size so as to be easily read. The following information shall be shown on the label:

(Name of Grantee of Type Acceptance)
FCC ID: (The number assigned to the
equipment by the Grantor)

This amplifier can be expected to comply with part 97 of the FCC Regulations when assembled and aligned in strict accordance with the instruction manual using components supplied with the kit or an exact equivalent thereof.

(Expiration date of license)

(To be signed by the person responsible for proper assembly of kit.)

(5) If requested, an unassembled unit shall be provided for assembly and test by the Commission. Shipping charges to and from the Commission's Laboratory shall be borne by the applicant for type acceptance.

(d) Type acceptance of external radio frequency power amplifiers and amplifier kits may be denied when denial serves the public interest, convenience and necessity by preventing the use of these amplifiers in services other than the Amateur Radio Service. Other uses of these amplifiers, such as in the Citizens Band Radio Service, are prohibited (CB Rule 21 of this chapter). Examples of features which may result in the denial of type acceptance are contained in §97.77 of this chapter.

(Sec. 302, 82 Stat. 290; 47 U.S.C. 302; secs. 4, 303, 307, 48 Stat., as amended, 1066, 1082, 1083; 47 U.S.C. 154, 303, 307)

[43 FR 12688, Mar. 27, 1978, as amended at 46 FR 18981, Mar. 27, 1981]

CERTIFICATION

§2.1031 Cross reference.

The general provisions of this subpart §2.901 et seq. shall apply to applications for and grants of certification. §2.1033 Application for certification.

(a) An application for certification shall be filed on FCC Form 731 with all questions answered. Items that do not apply shall be so noted.

(b) The application shall be accompanied by a technical report containing the following information:

(1) The full name and mailing address of the manufacturer of the device and the applicant for certification.

(2) FCC identifier.

(3) A copy of the installation and operating instructions to be furnished the user. A draft copy of the instructions may be submitted if the actual document is not available. The actual document shall be furnished to the FCC when it becomes available.

(4) A brief description of the circuit functions of the device along with a statement describing how the device operates. This statement should contain a description of the ground system and antenna, if any, used with the device.

(5) A block diagram showing the frequency of all oscillators in the device. The signal path and frequency shall be indicated at each block. The tuning range(s) and intermediate frequency(ies) shall be indicated at each block. A schematic diagram also is required for intentional radiators.

(6) A report of measurements of radiated and conducted emissions. This shall identify the test procedure used (e.g., indicate the FCC test procedure used or, if an alternate test procedure was used, a description of the test procedure and the reason it was necessary to use an alternate procedure), the date the measurements were made, the location where the measurements were made, and the device tested (model and serial number, if available). It shall also include a sample calculation showing how the obtained measurements were converted to the levels specified in the applicable rule sections.

(7) A sufficient number of photographs to clearly show the exterior appearance, the construction, the component placement on the chassis, and the chassis assembly. The exterior views shall show the overall appearance, the antenna used with the device (if any), the controls available to the user, and the required identification label in sufficient detail so that the name and FCC identifier can be read. In lieu of a photograph of the label, a sample label (or facsimile thereof) may be submitted together with a sketch showing where this label will be placed on the equipment. Photographs shall be of size A4 (21 cm x 29.7 cm) or 8 x 10 inches (20.3 cm x 25.4 cm). Smaller photographs may be submitted provided they are sharp and clear, show the necessary de