CEA-2028-A-2009 Color Codes for Outdoor TV Receiving Antennas《室外电视接收天线用色码》.pdf

1、 ANSI/CEA Standard Color Codes for Outdoor TV Receiving Antennas ANSI/CEA-2028-A February 2009 Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE Consumer Electronics Association

2、(CEA) Standards, Bulletins and other technical publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with m

3、inimum delay the proper product for his particular need. Existence of such Standards, Bulletins and other technical publications shall not in any respect preclude any member or nonmember of CEA from manufacturing or selling products not conforming to such Standards, Bulletins or other technical publ

4、ications, nor shall the existence of such Standards, Bulletins and other technical publications preclude their voluntary use by those other than CEA members, whether the standard is to be used either domestically or internationally. Standards, Bulletins and other technical publications are adopted b

5、y CEA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, CEA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard, Bulletin or other technical publication. This CEA Standard is c

6、onsidered to have International Standardization implication, but the International Electrotechnical Commission activity has not progressed to the point where a valid comparison between the CEA Standard and the IEC document can be made. This Standard does not purport to address all safety problems as

7、sociated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (Formulated under the cognizance of the CEAs R5 Ant

8、ennas Committee.) Published by CONSUMER ELECTRONICS ASSOCIATION 2009 Technology Phone 800-854-7179; Fax 303-397-2740; Internet http:/; Email 2.2 Informative References The following standards contain provisions that, through reference in this text, constitute informative provisions of this standard

9、. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed here. 2.2.1 Informative Reference List A

10、TSC Recommended Practice A/74, Receiver Performance Guidelines, June 18, 2004, with Corrigendum No. 1 and Amendment No. 1. ANSI/CEA-909-A, Antenna Control Interface, December 2007 Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or netwo

11、rking permitted without license from IHS-,-,-CEA-2028-A 22.2.2 Informative Reference Acquisition ATSC Standards: Advanced Television Systems Committee, 1750 K Street, NW, Suite 1200, Washington, DC USA 20006; Phone 202-872-9160; Fax 202-872-9161; Internet http:/www.atsc.org CEA Standards: Global Eng

12、ineering Documents, World Headquarters, 15 Inverness Way East, Englewood, CO USA 80112-5776; Phone 800-854-7179; Fax 303-397-2740; Internet http:/; Email 2.3 Definitions Antenna Directivity Pattern A plot of the horizontal radiation pattern of an antenna. Average Gain to Null Ratio The average gain

13、 to null ratio is the ratio of the average gain of all lobes within 3 dB of the maximum lobe to the minimum null CEA Test Channels The TV channels on which tests are to be conducted. These are defined in CEA-774-B, Section 5. CEA TV Antenna Selector Map Program A computer program that allows consume

14、rs to input their location and receive a listing of receivable terrestrial over-the-air TV signals along with recommendations for appropriate antennas with which to receive these signals. Consumers may access this program at www.AntennaWeb.org. Front to Back Ratio The ratio of an antennas maximum ga

15、in (front, 0) to the highest gain between 90 and 270 (back). Half Power Beam Width In a radiation pattern plot containing the direction of the maximum lobe, the angle between the two directions in which the radiation pattern shows one-half the maximum value. 2.4 Symbols and Abbreviations dB Decibel

16、dBd Decibels with respect to a dipole dBm Decibels with respect to a milliwatt UHF Ultra High Frequency VHF Very High Frequency 2.5 Compliance Notation As used in this document “shall” and “must” denote mandatory provisions of the standard. “Should” denotes a provision that is recommended but not ma

17、ndatory. “May” denotes a feature whose presence does not preclude compliance, and implementation of which is optional. “Optional” denotes items that may or may not be present in a compliant device. Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo rep

18、roduction or networking permitted without license from IHS-,-,-CEA-2028-A 33 Color Coding of Outdoor TV Receiving Antennas Use of color codes and various trademarked CEA logos associated with the www.AntennaWeb.org program require a license agreement with CEA. The license agreement regulates the way

19、 color codes and logos can be used. The color codes are: yellow, green, light green, red, blue, and violet. The color coding is nominally hierarchical in that higher gain antennas will, in general, (see Annex A for more information and application information) qualify for the color of lower gain ant

20、ennas. For example a red antenna would also qualify as a light green, green, and yellow antenna. All antenna gain measurements shall be without external amplification (i.e., only the antenna as defined herein is to be measured). 3.1 Multidirectional Antennas Coded Yellow, Green, Light Green 3.1.1 Ye

21、llow Requirements To be eligible for the yellow color code an antenna must have antenna gain: that exceeds an average of -25.0 dBd on CEA Test Channels 2, 4 and 6, with the gain on any single channel exceeding -29.0 dBd; that exceeds an average of -15.0 dBd on CEA Test Channels 7, 9, 11 and 13, with

22、 the gain on any single channel exceeding -19.0 dBd; and that exceeds an average of -10.0 dBd on CEA Test Channels 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69, with the gain on any single channel exceeding -14.0 dBd. When employing a built-in active amplifier stage yellow coded antennas must meet the

23、intermodulation and pre-amplifier criteria described in 3.3. 3.1.2 Green Requirements To be eligible for the green color code an antenna must have antenna gain: that exceeds an average of 12.0 dBd on CEA Test Channels 2, 4 and 6, with the gain on any single channel exceeding 16.0 dBd; that exceeds a

24、n average of 9.0 dBd on CEA Test Channels 7, 9, 11 and 13, with the gain on any single channel exceeding 13.0 dBd; and that exceeds an average of 6.0 dBd on CEA Test Channels 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69, with the gain on any single channel exceeding 10.0 dBd. When employing a built-in

25、active amplifier stage green coded antennas must meet the intermodulation and pre-amplifier criteria described in 3.3. Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEA-2028-A 43.1.

26、3 Light Green Requirements To be eligible for the light green color code an antenna must have: antenna gain that exceeds an average of -4.5 dBd on CEA Test Channels 2, 4 and 6, with the gain on any single channel exceeding -8.5 dBd; antenna gain that exceeds an average of -4.5 dBd on CEA Test Channe

27、ls 7, 9, 11 and 13, with the gain on any single channel exceeding -8.5 dBd; antenna gain that exceeds an average of -4.5 dBd on CEA Test Channels 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69, with the gain on any single channel exceeding -8.5 dBd; and a built-in active amplifier stage, or an associated

28、 mast-mounted pre-amplifier, that meets the intermodulation and pre-amplifier requirements described in 3.3. 3.2 Directional Antennas Coded Light Green, Red, Blue, and Violet 3.2.1 Light Green Requirements To be eligible for the light green color code a directional antenna must have: an average gain

29、 of at least -4.5 dBd on CEA Test Channels 2, 4 and 6 in the same direction, with the gain on any single channel exceeding -6.5 dBd; an average gain of at least -4.5 dBd on CEA Test Channels 7, 9, 11 and 13 in the same direction, with the gain on any single channel exceeding -6.5 dBd; an average gai

30、n of at least -4.5 dBd on CEA Test Channels 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69 in the same direction, with the gain on any single channel exceeding -6.5 dBd; an average half power beam width of 75 or less on CEA Test Channels 7, 9, 11, 13, 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69; an average

31、 front to back ratio (gain to null ratio for an electrically steered antenna) of at least 9.0 dB on CEA Test Channels 7, 9, 11 and 13; an average front to back ratio (gain to null ratio for an electrically steered antenna) of at least 10.0 dB on CEA Test Channels 14, 20, 26, 32, 38, 44, 50, 56, 62 a

32、nd 69; and a built-in active amplifier stage, or an associated antenna mounted pre-amplifier, that meets the intermodulation and pre-amplifier requirements described in 3.3. 3.2.2 Red Requirements To be eligible for the red color code a directional antenna must have: Copyright Consumer Electronics A

33、ssociation Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEA-2028-A 5 an average gain of at least -2.5 dBd on CEA Test Channels 2, 4 and 6 in the same direction, with the gain on any single channel exceeding -6.5 dBd; an ave

34、rage gain of at least 0.0 dBd on CEA Test Channels 7, 9, 11 and 13 in the same direction, with the gain on any single channel exceeding -4.0 dBd; an average gain of at least 0.0 dBd on CEA Test Channels 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69 in the same direction, with the gain on any single chan

35、nel exceeding -4.0 dBd; an average half power beam width of 80 or less on CEA Test Channels 2, 4 and 6; an average half power beam width of 58 or less on CEA Test Channels 7, 9, 11, 13, 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69; and an average front to back ratio (gain to null ratio for an electrica

36、lly steered antenna) of at least 10.0 dB on CEA Test Channels 2, 4, 6, 7, 9, 11, 13, 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69. 3.2.3 Blue Requirements To be eligible for the blue color code a directional antenna must meet the same requirements that it would have to meet to be eligible for the red c

37、olor code and it must include rooftop mounting instructions and an antenna-mounted pre-amplifier that meets the intermodulation and pre-amplifier criteria described in 3.3. 3.2.4 Violet Requirements To be eligible for the violet color code a directional antenna must have: an average gain of at least

38、 4.0 dBd on CEA Test Channels 2, 4 and 6 in the same direction, with the gain on any single channel exceeding 0.0 dBd; an average gain of at least 6.0 dBd on CEA Test Channels 7, 9, 11 and 13 in the same direction, with the gain on any single channel exceeding 2.0 dBd; an average gain of at least 8.

39、0 dBd on CEA Test Channels 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69 in the same direction, with the gain on any single channel exceeding 4.0 dBd; an average half power beam width of 80 or less on CEA Test Channels 2, 4 and 6; an average half power beam width of 58 or less on CEA Test Channels 7, 9,

40、 11, 13, 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69; an average front to back ratio of at least 12.0 dB on CEA Test Channels 2, 4, 6, 7, 9, 11 and 13; an average front to back ratio of at least 14.0 dB on CEA Test Channels 14, 20, 26, 32, 38, 44, 50, 56, 62 and 69; and Copyright Consumer Electronics

41、Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEA-2028-A 6 included rooftop mounting instructions and an antenna-mounted pre-amplifier that meets the intermodulation and pre-amplifier criteria described in 3.3. 3

42、.3 Amplifiers For an antenna to be eligible for the light green, blue or violet color codes it must be paired with a pre-amplifier collocated with the antenna and the pre-amplifier must provide at least: a minimum of 10 dB of gain including all test and measurement tolerances on all CEA Test Channel

43、s for which antenna and pre-amp operation is claimed; and a noise figure of 4.5 dB or less on all CEA Test Channels for which antenna and pre-amp operation is claimed. Intermodulation and spurious products must be more than 44 dB below any TV channel for a composite input signal power of -20.9 dBm w

44、here -26.5 dBm is UHF, and -22.3 dBm is VHF. Compliance with this section will be tested using the procedure in Section 8 of CEA-774-B, TV Receiving Antenna Performance Presentation and Measurement, except that the following signal levels shall be substituted for levels shown in CEA-774-B Section 8.

45、3 and injected directly into the amplifier under test. In section 8.3.a, substitute the following: For test a. inject two test signals at -25.3 dBm For test b. inject two test signals at -25.3 dBm For test c. inject two test signals at -29.5 dBm For test d. inject the VHF test signal at -22.3 dBm, a

46、nd inject the UHF test signal at -26.5 dBm For an active antenna (amplified antenna where the amplifier is permanently connect to the antenna) to be color coded yellow, green, or light green the amplifier portion must pass the test described in CEA-774-B, Section 8 using the matching network describ

47、ed in section 7.4 of CEA-774-B (See CEA-774-B, TV Receiving Antenna Performance Presentation and Measurement, Section 8 and Section 7.4.) Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,

48、-,-CEA-2028-A 7Annex A Summary of Color Codes and Typical Antenna Attributes (Informative) A.1 Purpose This annex describes the relationship between color codes and typical antenna attributes. It also describes other antenna installation considerations. A.2 Background The purpose of color coding TV receiving antennas is to provide consumers and installers alike a useful tool for selecting appropriate TV receiving antennas. The color codes presented in this standard are the same as those employed by the Consumer Electronic