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

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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 fig- ure 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 854 VerDate Aug<31>2005 00:46 Nov 03, 2006 Jkt 208196 PO 00000 Frm 00864 Fmt 8010 Sfmt 8010 Y:\SGML\208196.XXX 208196 Federal Communications Commission § 15.117 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 capa- bility. 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 855 VerDate Aug<31>2005 00:46 Nov 03, 2006 Jkt 208196 PO 00000 Frm 00865 Fmt 8010 Sfmt 8010 Y:\SGML\208196.XXX 208196 § 15.118 47 CFR Ch. I (10–1–06 Edition) 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.
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