'If a licensee chooses to show compliance using maximum beamwidth to 3 dB points, the beamwidth limit shall apply in both the azimuth and the elevation planes.

2 Mobile, except aeronautical mobile, stations need not comply with these standards.

3 The minimum front-to-back ratio shall be 38 dBi.

3. In Section 74.641, paragraph (a)(1) is revised to read as follows:

(1) Fixed TV broadcast auxiliary stations shall use directional antennas that meet the performance standards indicated in the following table. Upon adequate showing of need to serve a larger sector, or more than a single sector, greater beamwidth or multiple antennas may be authorized. Applicants shall request, and authorization for stations in this service will specify, the polarization of each transmitted signal. Booster station antennas having narrower beamwidths and reduced sidelobe radiation may be required in congested areas, or to resolve interference problems. Licensees shall comply with the antenna standards table shown in this paragraph in the following manner:

'If a licensee chooses to show compliance using maximum beamwidth to 3 dB points. the beamwidth limit shall apply in both the azimuth and the elevation planes.

2 Mobile, except aeronautical mobile, stations need not comply with these standards.

3 The minimum front-to-back ratio shall be 38 dBi.

NOTE: Stations must employ an antenna that meets the performance standards for Category B. In areas subject to frequency congestion, where proposed facilities would be precluded by continued use of a Category B antenna, a Category A antenna must be employed. The Commission may require the use of a high performance antenna where interference problems can be resolved by the use of such antennas.

*

PART 78 -- CABLE TELEVISION RELAY SERVICE

1. The authority citation for Part 78 continues to read as follows:

AUTHORITY: Secs. 2, 3, 4, 301, 303, 307, 308, 309, 48 Stat., as amended, 1064, 1065, 1066, 1081, 1082, 1083, 1084, 1085; 47 U.S.C. 152, 153, 154, 301, 303. 307, 308, 309.

2. In Section 78.105, paragraph (a)(1) is revised to read as follows:

§ 78.105 Antenna systems.

(a)

(1) Fixed CARS stations shall use directional antennas that meet the performance standards indicated in the following table.

(i) Stations must employ an antenna that meets the performance standards for Category B. In areas subject to frequency congestion, where proposed facilities would be precluded by continued use of a Category B antenna, a Category A antenna must be employed. The Commission may require the use of a high performance antenna where interference problems can be resolved by the use of such antennas.

(ii) Upon adequate showing of need to serve a larger sector, or more than a single sector, greater beamwidth or multiple antennas may be authorized. Applicants shall request and authorization for stations in this service will specify the polarization of each transmitted signal.

(iii) Licensees shall comply with the antenna standards table shown in this paragraph in the following manner:

'If a licensee chooses to show compliance using maximum beamwidth to 3 dB points, the beamwidth limit shall apply in both the azimuth and the elevation planes.

Mobile, except aeronautical mobile, stations need not comply with these standards.

1. The authority citation for Part 101 continues to read as follows:

AUTHORITY: 47 U.S.C. §§ 154(i), 303, unless otherwise noted.

2. In Section 101.115, paragraph (c) is revised to read as follows:

§101.115 Directional antennas.

(c) Fixed stations (other than temporary fixed stations and DEMS nodal stations) operating at 932.5 MHz or higher must employ transmitting and receiving antennas (excluding second receiving antennas for operations such as space diversity) meeting the appropriate performance Standard A indicated below, except that in areas not subject to frequency congestion, antennas meeting performance Standard B may be used, subject to the requirements set forth in paragraph (d) of this section. Licensees shall comply with the antenna standards table shown in this paragraph in the following manner:

(i) With either the maximum beamwidth to 3 dB points requirement or with the minimum antenna gain requirement; and

(ii) With the minimum radiation suppression to angle requirement.