Sec. 97.317  Standards for type acceptance of external RF power 
          amplifiers.

    (a) To receive a grant of type acceptance, the amplifier must 
satisfy the spurious emission standards of Sec. 97.307(d) or (e) of this 
part, as applicable, when the amplifier is:
    (1) Operated at its full output power;
    (2) Placed in the ``standby'' or ``off'' positions, but still 
connected to the transmitter; and
    (3) Driven with at least 50 W mean RF input power (unless higher 
drive level is specified.)
    (b) To receive a grant of type acceptance, the amplifier must not be 
capable of operation on any frequency or frequencies between 24 MHz and 
35 MHz. The amplifier will be deemed incapable of such operation if it:
    (1) Exhibits no more than 6 dB gain between 24 MHz and 26 MHz and 
between 28 MHz and 35 MHz. (This gain will be determined by the ratio of 
the input RF driving signal (mean power measurement) to the mean RF 
output power of the amplifier); and
    (2) Exhibits no amplification (0 dB gain) between 26 MHz and 28 MHz.
    (c) Type acceptance may be denied when denial would prevent the use 
of these amplifiers in services other than the amateur service. The 
following features will result in dismissal or denial of an application 
for type acceptance:
    (1) Any accessible wiring which, when altered, would permit 
operation of the amplifier in a manner contrary to the FCC Rules;
    (2) Circuit boards or similar circuitry to facilitate the addition 
of components to change the amplifier's operating characteristics in a 
manner contrary to the FCC Rules;
    (3) Instructions for operation or modification of the amplifier in a 
manner contrary to FCC Rules;
    (4) Any internal or external controls or adjustments to facilitate 
operation of the amplifier in a manner contrary to the FCC Rules;
    (5) Any internal RF sensing circuitry or any external switch, the 
purpose of which is to place the amplifier in the transmit mode;
    (6) The incorporation of more gain in the amplifier than is 
necessary to operate in the amateur service; for purposes of this 
paragraph, the amplifer must:
    (i) Not be capable of achieving designed output power when driven 
with less than 50 W mean RF input power;
    (ii) Not be capable of amplifying the input RF driving signal by 
more than 15 dB, unless the amplifier has a designed transmitter power 
of less than 1.5 kW (in such a case, gain must be reduced by the same 
number of dB as the transmitter power relationship to 1.5 kW; This gain 
limitation is determined by the ratio of the input RF driving signal to 
the RF output power of the amplifier where both signals are expressed in 
peak envelope power or mean power);
    (iii) Not exhibit more gain than permitted by paragraph (c)(6)(ii) 
of this section when driven by an RF input signal of less than 50 W mean 
power; and
    (iv) Be capable of sustained operation at its designed power level;
    (7) Any attenuation in the input of the amplifier which, when 
removed or modified, would permit the amplifier to function at its 
designed transmitter power when driven by an RF frequency input signal 
of less than 50 W mean power; or

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    (8) Any other features designed to facilitate operation in a 
telecommunication service other than the Amateur Radio Services, such as 
the Citizens Band (CB) Radio Service.

              Subpart E--Providing Emergency Communications