47 CFR Ch. I (10–1–06 Edition) § 15.117

§ 15.117 47 CFR Ch. I (10–1–06 Edition)

§ 15.117 TV broadcast receivers. comprising five pushbuttons and a separate manual tuning knob is considered to provide (a) All TV broadcast receivers repeated access to six channels at discrete shipped in interstate commerce or im- tuning positions. A one-knob (VHF/UHF) ported into the United States, for sale tuning system providing repeated access to or resale to the public, shall comply 11 or more discrete tuning positions is also with the provisions of this section, ex- acceptable, provided each of the tuning posi- cept that paragraphs (f) and (g) of this tions is readily adjustable, without the use section shall not apply to the features of tools, to receive any UHF channel. of such sets that provide for reception (2) Tuning controls and channel read- of digital television signals. The ref- out. UHF tuning controls and channel erence in this section to TV broadcast readout on a given receiver shall be receivers also includes devices, such as comparable in size, location, accessi- TV interface devices and set-top de- bility and legibility to VHF controls vices that are intended to provide and readout on that receiver. audio-video signals to a video monitor, that incorporate the tuner portion of a NOTE: Differences between UHF and VHF TV broadcast receiver and that are channel readout that follow directly from the larger number of UHF television chan- equipped with an antenna or antenna nels available are acceptable if it is clear terminals that can be used for off-the- that a good faith effort to comply with the air reception of TV broadcast signals, provisions of this section has been made. as authorized under part 73 of this chapter. (d) If equipment and controls that (b) TV broadcast receivers shall be tend to simplify, expedite or perfect capable of adequately receiving all the reception of television signals (e.g., channels allocated by the Commission AFC, visual aids, remote control, or to the television broadcast service. signal seeking capability referred to (c) On a given receiver, use of the generally as tuning aids) are incor- UHF and VHF tuning systems shall porated into the VHF portion of a TV provide approximately the same degree broadcast receiver, tuning aids of the of tuning accuracy with approximately same type and comparable capability the same expenditure of time and ef- and quality shall be provided for the fort: Provided, however, That this re- UHF portion of that receiver. quirement will be considered to be met (e) If a television receiver has an an- if the need for routine fine tuning is tenna affixed to the VHF antenna ter- eliminated on UHF channels. minals, it must have an antenna de- (1) Basic tuning mechanism. If a TV signed for and capable of receiving all broadcast receiver is equipped to pro- UHF television channels affixed to the vide for repeated access to VHF tele- UHF antenna terminals. If a VHF an- vision channels at discrete tuning posi- tenna is provided with but not affixed tions, that receiver shall be equipped to a receiver, a UHF antenna shall be to provide for repeated access to a min- provided with the receiver. imum of six UHF television channels at (f) The picture sensitivity of a TV discrete tuning positions. Unless a dis- broadcast receiver averaged for all crete tuning position is provided for channels between 14 and 69 inclusive each channel allocated to UHF tele- shall not be more than 8dB larger than vision, each position shall be readily the peak picture sensitivity of that re- adjustable to a particular UHF channel ceiver averaged for all channels be- by the user without the use of tools. If tween 2 and 13 inclusive. 12 or fewer discrete tuning positions (g) The noise figure for any television are provided, each position shall be ad- channel 14 to 69 inclusive shall not ex- justable to receive any channel allo- ceed 14 dB. A TV receiver model is con- cated to UHF television. sidered to comply with this noise figure if the maximum noise figure for NOTE: The combination of detented rotary channels 14–69 inclusive of 97.5% of all switch and pushbutton controls is accept- receivers within that model does not able, provided UHF channels, after their ini- tial selection, can be accurately tuned with exceed 14 dB. an expenditure of time and effort approxi- (1) The responsible party shall meas- mately the same as that used in accurately ure the noise figure of a number of tuning VHF channels. A UHF tuning system UHF channels of the test sample to

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give reasonable assurance that the (iv) Other video devices (video- UHF noise figure for each channel com- cassette recorders (VCRs), digital video plies with the above limit. recorders such as hard drive and DVD (2) The responsible party shall insert recorders, etc.) that receive television in his files a statement explaining the signals—100% of all such units must in- basis on which it will rely to ensure clude DTV tuners effective March 1, that at least 97.5% of all production 2007. units of the test sample that are manu- (2) For purposes of this implementa- factured have a noise figure of no tion schedule, screen sizes are to be greater than 14 dB. measured diagonally across the picture (3) [Reserved] viewing area. The requirement for (4) In the case of a TV tuner built-in equipping new TV broadcast receivers as part of a video tape recorder that with DTV reception capability does not uses a power splitter between the an- apply to units with integrated tuners/ tenna terminals of the video tape re- displays that have screen sizes meas- corder and the input terminals of the uring less than 7.8 inches vertically, TV tuner or a TV broadcast receiver i.e., the vertical measurement of a that uses a power splitter between the screen in the 4:3 aspect ratio that antenna terminals of two or more UHF measures 13′ diagonally across the pic- tuners contained within that receiver, ture viewing area. 4 dB may be subtracted from the noise (3) Responsible parties may include figure measured at the antenna termi- combinations of DTV monitors and set- nals of the video tape recorder or TV top DTV tuners in meeting the re- broadcast receiver for determining quired percentages of units with a DTV compliance of the UHF tuner(s) with tuner if such combinations are mar- the 14 dB noise figure limit. keted together with a single price. (h) Digital television reception capability. TV broadcast receivers are re- (4) The requirement to include dig- quired only to provide useable picture ital television reception capability in and sound commensurate with their new TV broadcast receivers does not video and audio capabilities when re- apply to devices such as mobile tele- ceiving digital television signals. phones and personal digital assistants (i) Digital television reception capability where such devices do not include the implementation schedule. (1) Responsible capability to receive TV service on the parties, as defined in § 2.909 of this frequencies allocated for broadcast tel- chapter, are required to equip new TV evision service. broadcast receivers that are shipped in (j) For a TV broadcast receiver interstate commerce or imported from equipped with a cable input selector any foreign country into the United switch, the selector switch shall pro- States and for which they are respon- vide, in any of its set positions, isola- sible to comply with the provisions of tion between the antenna and cable this section in accordance with the fol- input terminals of at least 80 dB from lowing schedule: 54 MHz to 216 MHz, at least 60 dB from (i) Receivers with screen sizes 36″ and 216 MHz to 550 MHz and at least 55 dB above—50% of all of a responsible par- from 550 MHz to 806 MHz. The 80 dB ty’s units must include DTV tuners ef- standard applies at 216 MHz and the 60 fective July 1, 2004; 100% of such units dB standard applies at 550 MHz. In the must include DTV tuners effective July case of a selector switch requiring a 1, 2005. power source, the required isolation (ii) Receivers with screen sizes 25″ to shall be maintained in the event the less than 36″—50% of all of a respon- device is not connected to a power sible party’s units must include DTV source or power is interrupted. An ac- tuners effective July 1, 2005; 100% of tual switch that can alternate between such units must include DTV tuners ef- reception of cable television service fective March 1, 2006. and an antenna is not required for a TV (iii) Receivers with screen sizes less broadcast receiver, provided compli- than 25″—100% of all such units must ance with the isolation requirement include DTV tuners effective March 1, specified in this paragraph can be dem- 2007. onstrated and the circuitry following

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the antenna input terminal(s) has suffi- is 10 dB below the visual carrier should cient band-width to allow the reception be unmodulated. Measurements are to of all TV broadcast channels author- be performed for input signal levels of ized under this chapter. The provisions 0 dBmV and +15 dBmV, with the re- of this paragraph regarding frequencies ceiver tuned to ten evenly spaced EIA in the range 550 MHz to 806 MHz are ap- IS–132 channels covering the band 54 plicable as of June 30, 1997. MHz to 804 MHz. (2) Image channel interference. Image [54 FR 17714, Apr. 25, 1993, as amended at 59 FR 25341, May 16, 1994; 61 FR 30532, June 17, channel interference within the IF 1996; 67 FR 63294, Oct. 11, 2002; 70 FR 38804, passband shall be attenuated below the July 6, 2005; 70 FR 75743, Dec. 21, 2005] visual carrier of the desired channel by at least 60 dB from 54 MHz to 714 MHz § 15.118 Cable ready consumer elec- and 50 dB from 714 MHz to 804 MHz. The tronics equipment. 60 dB standard applies at 714 MHz. In (a) All consumer electronics TV re- testing for compliance with this stand- ceiving equipment marketed in the ard, the desired input signal is to be an United States as cable ready or cable NTSC signal on which the visual car- compatible shall comply with the pro- rier is modulated with a 10 IRE flat visions of this section. Consumer elec- field with color burst and the aural tronics TV receiving equipment that carrier is unmodulated and 10 dB below includes features intended for use with the visual carrier. The undesired test cable service but does not fully comply signal shall be a CW signal equal in with the provisions of this section are amplitude to the desired visual carrier subject to the labelling requirements and located 90 MHz above the visual of § 15.19(d). Until such time as gen- carrier frequency of the desired chan- erally accepted testing standards are nel. Measurements shall be performed developed, paragraphs (c) and (d) of for input signals of 0 dBmV and +15 this section will apply only to the ana- dBmV, with the receiver tuned to at log portion of covered consumer elec- least ten evenly spaced EIA IS–132 tronics TV receiving equipment channels covering the band 54 MHz to (b) Cable ready consumer electronics 804 MHz. equipment shall be capable of receiving (3) Direct pickup interference. The di- all NTSC or similar video channels on rect pickup (DPU) of a co-channel channels 1 through 125 of the channel interfering ambient field by a cable allocation plan set forth in CEA–542–B: ready device shall not exceed the fol- ‘‘CEA Standard: Cable Television Chan- lowing criteria. The ratio of the desired nel Identification Plan,’’ (incorporated to undesired signal levels at the IF by reference, see § 15.38). passband on each channel shall be at (c) Cable ready consumer electronics least 45 dB. The average ratio over the equipment must meet the following six channels shall be at least 50 dB. The technical performance requirements. desired input signal shall be an NTSC Compliance with these requirements signal having a visual carrier level of 0 shall be determined by performing dBmV. The visual carrier is modulated measurements at the unfiltered IF out- with a 10 IRE flat field with color put port. Where appropriate, the Com- burst, visual to aural carrier ratio of 10 mission will consider allowing alter- dB, aural carrier unmodulated. The native measurement methods. equipment under test (EUT) shall be (1) Adjacent channel interference. In placed on a rotatable table that is one the presence of a lower adjacent chan- meter in height. Any excess length of nel CW signal that is 1.5 MHz below the the power cord and other connecting desired visual carrier in frequency and leads shall be coiled on the floor under 10 dB below the desired visual carrier the table. The EUT shall be immersed in amplitude, spurious signals within in a horizontally polarized uniform CW the IF passband shall be attenuated at field of 100 mV/m at a frequency 2.55 least 55 dB below the visual carrier of MHz above the visual carrier of the the desired signal. The desired input EUT tuned channel. Measurements signal shall be an NTSC visual carrier shall be made with the EUT tuned to modulated with a 10 IRE flat field with six EIA IS–132 channels, two each in color burst and the aural carrier which the low VHF, high VHF and UHF

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