User's Manual Addendum

(d) If your CB station is located near an airport, and if you antenna structure is more than 6.1 meters (20 feet) high, you
may have to obey additional restrictions. The highest point of your antenna must not exceed one meter above the
airport elevation for every hundred meters of distance from the nearest point of the nearest airport runway. Differences
in ground elevation between your antenna and the airport runway may complicate this formula. If your CB station is near
an airport, you may contact the nearest FCC field office for a worksheet to help you figure the maximum allowable
height of your antenna. Consult part 17 of the FCC's Rules for more information.
WARNING: Installation and removal of CB station antennas near powerlines is dangerous. For your safety, follow the installation
directions included with your antenna.
[48 FR 24894, June 3, 1983, as amended at 48 FR 41416, Sept. 15, 1983]
§95.409 (CB Rule 9) What equipment may I use at my CB station?
(a) You must use an FCC certificated CB transmitter at your CB station. You can identify an FCC certificated transmitter
by the certification label placed on it by the manufacturer. You may examine a list of certificated equipment at any FCC
Field Office or at FCC Headquarters. Use of a transmitter which is not FCC certificated voids your authority to operate
the station.
(b) You must not make, or have made, any internal modification to a certificated CB transmitter. (See CB Rule 25,
§95.425). Any internal modification to a certificated CB transmitter cancels the certification, and use of such a
transmitter voids your authority to operate the station.
[48 FR 24894, June 3, 1983, as amended at 63 FR 36610, July 7, 1998]
§95.410 (CB Rule 10) How much power may I use?
(a) Your CB station transmitter power output must not exceed the following values under any conditions:
AM (A3)—4 watts (carrier power) SSB—12 watts (peak envelope power)
(b) If you need more information about the power rule, see the technical rules in subpart E of part 95.
(c) Use of a transmitter which has carrier or peak envelope power in excess of that authorized voids your authority to
operate the station.
§95.411 (CB Rule 11) May I use power amplifiers?
(a) You may not attach the following items (power amplifiers) to your certificated CB transmitter in any way:
(1) External radio frequency (RF) power amplifiers (sometimes called linears or linear amplifiers); or
(2) Any other devices which, when used with a radio transmitter as a signal source, are capable of amplifying
the signal.
(b) There are no exceptions to this rule and use of a power amplifier voids your authority to operate the station.
(c) The FCC will presume you have used a linear or other external RF power amplifier if—
(1) It is in your possession or on your premises; and
(2) There is other evidence that you have operated your CB station with more power than allowed by CB Rule
10, §95.410.
(d) Paragraph (c) of this section does not apply if you hold a license in another radio service which allows you to operate
an external RF power amplifier.
[48 FR 24894, June 3, 1983, as amended at 63 FR 36610, July 7, 1998]
§95.412 (CB Rule 12) What communications may be transmitted?