---
kind: "section"
citation: "47 C.F.R. § 30.406"
title: "47"
number: "30.406"
heading: "Directional antennas."
url: "https://uscodex.org/cfr/47/30.406"
---

# §30.406. Directional antennas.

- (a) Unless otherwise authorized upon specific request by the applicant, each station authorized under the rules of this subpart must employ a directional antenna adjusted with the center of the major lobe of radiation in the horizontal plane directed toward the receiving station with which it communicates: provided, however, where a station communicates with more than one point, a multi- or omni-directional antenna may be authorized if necessary.
- (b) Fixed stations (other than temporary fixed stations) must employ transmitting and receiving antennas (excluding second receiving antennas for operations such as space diversity) meeting the appropriate performance Standard A indicated in the table to this section, except that in areas not subject to frequency congestion, antennas meeting performance Standard B may be used. For frequencies with a Standard B1 and a Standard B2, in order to comply with Standard B an antenna must fully meet either Standard B1 or Standard B2. Licensees shall comply with the antenna standards table shown in this paragraph in the following manner:
  - (1) With either the maximum beamwidth to 3 dB points requirement or with the minimum antenna gain requirement; and
  - (2) **With the minimum radiation suppression to angle requirement.**

## Notes

### Authority

Authority: 47 U.S.C. 151, 152, 153, 154, 301, 303, 304, 307, 309, 310, 316, 332, 1302, unless otherwise noted.

### Source

Source: 81 FR 79937, Nov. 14, 2016, unless otherwise noted.