text stringlengths 65 600 |
|---|
(f)">(f) For a receiver which employs terminals for the connection of an external receiving antenna, the receiver shall be tested to demonstrate compliance with the provisions of this section with an antenna connected to the antenna terminals unless the antenna conducted power is measured as specified in § 15.111(a). I... |
pliance with the provisions of this section.
(g) As an alternative to the radiated emission limits shown in paragraphs (a) and (b) of this section, digital devices may be shown to comply with the standards contained in Third Edition of the International S |
pecial Committee on Radio Interference (CISPR), Pub. 22, “Information Technology Equipment—Radio Disturbance Characteristics—Limits and Methods of Measurement” (incorporated by reference, see § 15.38). In addition:
(1) The test procedure and other requirements specified in this part shall continue to apply to digital... |
d="p-15.109(g)(2)">
(2) If, in accordance with § 15.33 of this part, measurements must be performed above 1000 MHz, compliance above 1000 MHz shall be demonstrated with the emission limit in paragraph (a) or (b |
) of this section, as appropriate. Measurements above 1000 MHz may be performed at the distance specified in the CISPR 22 publications for measurements below 1000 MHz provided the limits in paragraphs (a) and (b) of this section are extrapolated to the new measurement distance using an inverse linear distance extrapola... |
uV/m, as measured at a distance of 10 meters.
(3) The measurement distances shown in CISPR Pub. 22, including measurements made in accordance with this paragraph above 1000 MHz, are considered, for the purpose of § 15.31(f)(4) of this part, to be the measurement distances specified in this part.
<div id="p |
-15.109(h)">(h) Radar detectors shall comply with the emission limits in paragraph (a) of this section over the frequency range of 11.7-12.2 GHz.
[54 FR 17714, Apr. 25, 1989, as amended at <a href="https://www.federalregister.go |
v/citation/56-FR-373" class="fr-reference" data-reference="56 FR 373">56 FR 373, Jan. 4, 1991; 58 FR 51249, Oct. 1, 1993; 66 FR 19098, Apr. 13, 2001; 67 FR 48993, July 29, 2002; <a href="https://www.federalregister.gov/citation/69-FR-2849" class |
="fr-reference" data-reference="69 FR 2849">69 FR 2849, Jan. 21, 2004; 80 FR 33447, June 12, 2015]
§ 15.111 Antenna power conduction limits for receivers.
(a) |
In addition to the radiated emission limits, receivers that operate (tune) in the frequency range 30 to 960 MHz and CB receivers that provide terminals for the connection of an external receiving antenna may be tested to demonstrate compliance with the provisions of § 15.109 with the antenna terminals shielded and term... |
mination equal to the impedance specified or employed for the antenna, the power at the antenna terminal at any frequency within the range of measurements specified in § 15.33 shall not exceed 2.0 nanowatts.
(b) CB receivers and receivers that operate (tune) in the frequency range 30 to 960 MHz that are provided only... |
shall comply with the radiated emission limitations in this part, as measured with the antenna attached.
§ 15.113 Power line carrier systems.
Power line carrier systems, as defined in § 15.3(t), are subject only to the following requirements:
<s |
pan class="paren">(a) A power utility operating a power line carrier system shall submit the details of all existing systems plus any proposed new systems or changes to existing systems to an industry-operated entity as set forth in § 90.35(g) of this chapter. No notification to the FCC is required.
(b)</spa |
n> The operating parameters of a power line carrier system (particularly the frequency) shall be selected to achieve the highest practical degree of compatibility with authorized or licensed users of the radio spectrum. The signals from this operation shall be contained within the frequency band 9 kHz to 490 kHz. A pow... |
or adjust its power line carrier operation, as required, to remedy the interference. Particular attention should be paid to the possibility of interference to Loran C operations at 100 kHz.
(c) Power line carrier system apparatus shall be operated with the minimum power possible to accomplish the desired purpose. No... |
3(d)">(d) The best engineering principles shall be used in the generation of radio frequency currents by power line carrier systems to guard against harmful interference to authorized radio users, particularly on the fundamental and harmonic frequencies.
(e) Power line carrier system apparatus shall conform to such ... |
ndards as may be promulgated by the Commission. In addition, such systems should adhere to industry approved standards designed to enhance the use of power line carrier systems.
(f) The provisions of this section apply only to systems operated by a power utility for general supervision of the power system and do not... |
Such operation can be conducted under the other provisions of this part.
(g) Special provisions. An electric power utility entity shall not operate a new or modified power line carrier (PLC) system in the 135.7-137.8 kHz and/or 472-479 kHz bands if a previously coordinated amateur station pursuant to § 97 |
.301(g)(2) of this chapter is located within one kilometer of the transmission lines conducting the PLC signal.
[54 FR 17714, Apr. 25, 1989; 54 FR 32339, Aug. 7, 1989; 75 FR 63031, Oct. 13, 2010; <a href="https://w |
ww.federalregister.gov/citation/82-FR-27213" class="fr-reference" data-reference="82 FR 27213">82 FR 27213, June 14, 2017]
§ 15.115 TV interface devices, including cable system terminal devices.
(a) Measurements of the radiated emissions of a TV interface device shall be cond |
ucted with the output terminal(s) of the device terminated by a resistance equal to the rated output impedance. The emanations of a TV interface device incorporating an intentional radiator shall not exceed the limits in § 15.109 or subpart C of this part, whichever is higher for each frequency. Where it is possible to... |
device portion shall comply with the emission limits in § 15.109, and the emissions from the intentional radiator shall comply with subpart C of this part.
(b) Output signal limits:
<span class="par |
agraph-hierarchy">(1) At any RF output terminal, the maximum measured RMS voltage, in microvolts, corresponding to the peak envelope power of the modulated signal during maximum amplitude peaks across a resistance (R in ohms) matching the rated output impedance of the TV interface device, shall not exceed the following... |
or a TV interface device used with a master antenna, 692.8 times the square root of (R) for the video signal and 155 times the square root of (R) for the audio signal.
(ii) For all other TV interface devices, 346.4 times the square root of (R) for the video signal and 77.5 times the square root of (R) for the audio ... |
)">(2) At any RF output terminal, the maximum measured RMS voltage, in microvolts, corresponding to the peak envelope power of the modulated signal during maximum amplitude peaks across a resistance (R in ohms) matching the rated output impedance of the TV interface device, of any emission appearing on frequencies remo... |
>
(i) For a cable system terminal device or a TV interface device used with a master antenna, 692.8 times the square root of (R).
(ii) For all other TV interface devices, 10.95 times the square root of (R).
<p class="indent- |
2" data-title="15.115(b)(3)">(3) The term master antenna used in this section refers to TV interface devices employed for central distribution of television or other video signals within a building. Such TV interface devices must be designed to:
(i) Distribute multiple television signals at the same time;
|
(ii) Distribute such signals by cable to outlets or TV receivers in multiple rooms in the building in which the TV interface devices are installed; and,
(iii) Distribute all over-the-air or cable signals.
<div c |
lass="header">Note:
Cable-ready video cassette recorders continue to be subject to the provisions for general TV interface devices.
(c) A TV interface device shall be equipped with a transfer switch for connecting the antenna terminals of a receiver selectively either to the receiving antenna or to the radio frequ... |
5.115(c)(1)">
(1) When measured in any of its set positions, transfer switches shall comply with the following requirements:
(i) For a cable system terminal device or a TV interface device equipped for use with a cable system or a master antenna, as defined in <a href="/on/2024-04 |
-11/title-47/section-15.115#p-15.115(b)(3)" class="cfr external">paragraph (b)(3) of this section, the isolation between the antenna and cable input terminals shall be at least 80 dB from 54 MHz to 216 MHz, at least 60 dB from 216 MHz to 550 MHz and at least 55 dB from 550 MHz to 806 MHz. The 80 dB standard applies at ... |
">
(ii) For all other TV interface devices, the maximum voltage, corresponding to the peak envelope power of the modulated video signal during maximum amplitude peaks, in microvolts, appearing at the receiving antenna input terminals when terminated with a resistance (R in ohms) matching the rated impedance of the ante... |
nt-3" data-title="15.115(c)(1)(iii)">(iii) Measurement to determine compliance with the transfer switch limits shall be made using a connecting cable, where required, between the TV interface device and the transfer switch of the type and length:
(A) Provided with the TV interface device,
<div id="p-15.1 |
15(c)(1)(iii)(B)">
(B) Recommended in the instruction manual, or
(C) Normally employed by the consumer.
|
(2) A TV interface device shall be designed and constructed, to the extent practicable, so as to preclude the possibility that the consumer may inadvertently attach the output of the device to the receiving antenna, if any, without first going through the transfer switch.
(3) A transfer switch is not required for a ... |
o longer having any need to receive standard over-the-air broadcast signals via a separate antenna. A transfer switch is not required to be marketed with a cable system terminal device unless that device provides for the connection of an external antenna. A transfer switch is not required for a device that is intended ... |
required for a TV interface device, including a cable system terminal device, that has an antenna input terminal(s); provided, the circuitry following the antenna input terminal(s) has sufficient bandwidth to allow the reception of all TV broadcast channels authorized under part 73 of this chapter and: For a cable sys... |
115(c)(1)(i)" class="cfr external">paragraph (c)(1)(i) of this section can be demonstrated; and, for all other TV interface devices, the maximum voltage appearing at the antenna terminal(s) does not exceed the limit in paragraph (c)(1)(ii) of this section.
(5) If a transfer switch is not required, the following labe... |
be used in addition to the label shown in § 15.19(a):
This device is intended to be attached to a receiver that is not used to receive over-the-air broadcast signals. Connection of this device in any other fashion may cause harmful interference to radio communications and is in violation of the FCC Rules, part 15.
... |
ren">) A TV interface device, including a cable system terminal device, shall incorporate circuitry to automatically prevent emanations from the device from exceeding the technical specifications in this part. These circuits shall be adequate to accomplish their functions when the TV interface device is presented, if a... |
n provisions for an external signal source but do not contain provisions for the input of an external baseband signal, e.g., some cable system terminal devices, compliance with the provisions of this paragraph shall be demonstrated with a radio frequency input signal of 0 to 25 dBmV.
(e) For cable system terminal de... |
ion-15.115#p-15.115(b)(3)" class="cfr external">paragraph (b)(3) of this section, the holder of the grant of authorization shall specify in the instruction manual or pamphlet, if a manual is not provided, the types of wires or coaxial cables necessary to ensure that the unit complies with the requirements of this part.... |
shall be provided by the responsible party.
(f) A TV interface device which is submitted to the Commission as a composite device in a single enclosure containing a RF modulator, video source and other component devices shall be submitted on a single application (FCC Form 731) and shall be authorized as a single devi... |
rchy">(g) An external device or accessory that is intended to be attached to a TV interface device shall comply with the technical and administrative requirements set out in the rules under which it operates. For example, a personal computer must be certificated to show compliance with the regulations for digital devic... |
between cable service and an antenna shall provide isolation between the antenna and cable input terminals that is at least 80 dB from 54 MHz to 216 MHz, at least 60 dB from 216 MHz to 550 MHz and at least 55 dB from 550 MHz to 806 MHz. The 80 dB standard applies at 216 MHz and the 60 dB standard applies at 550 MHz. I... |
ragraph-hierarchy">(i) Switches and other devices intended to be used to by-pass the processing circuitry of a cable system terminal device, whether internal to such a terminal device or a stand-alone unit, shall not attenuate the input signal more than 6 dB from 54 MHz to 550 MHz, or more than 8 dB from 550 MHz to 804... |
, as amended at 57 FR 33448, July 29, 1992; 59 FR 25341, May 16, 1994; 61 FR 18509, Apr. 26, 1996; 77 FR 4913, Feb. 1, 2012]
</di |
v>
§ 15.117 TV broadcast receivers.
(a) All TV broadcast receivers shipped in interstate commerce or imported into the United States, for sale or resale to the public, shall comply with the provisions of this section, except that <a href="/on/2024-04-11/title-47/section-15.117#p-15.117(f)" c |
lass="cfr external">paragraphs (f) and (g) of this section shall not apply to the features of such sets that provide for reception of digital television signals. The reference in this section to TV broadcast receivers also includes devices, such as TV interface devices and set-top devices that are intended to provide a... |
ir reception of TV broadcast signals, as authorized under part 73 of this chapter.
(b) TV broadcast receivers shall be capable of adequately receiving all channels allocated by the Commission to the television broadcast service that broadcast digital signals using the DTV transmission standard in <a href="/on/2024-0... |
lass="cfr external">§ 73.682(d) of this chapter, but need not be capable of receiving analog signals or signals using the Next Gen TV transmission standard in § 73.682(f) of this chapter.
(c) On a given receiver, use of the UHF and VHF tuning systems shall provide approximately the same degree of tuning accuracy wit... |
same expenditure of time and effort: Provided, however, That this requirement will be considered to be met if the need for routine fine tuning is eliminated on UHF channels.
(1) Basic tuning mechanism. If a TV broadcast receiver is equipped to provide for repeated access to VHF television channels at discrete tuning... |
d access to a minimum of six UHF television channels at discrete tuning positions. Unless a discrete tuning position is provided for each channel allocated to UHF television, each position shall be readily adjustable to a particular UHF channel by the user without the use of tools. If 12 or fewer discrete tuning positi... |
nitial selection, can be accurately tuned with an expenditure of time and effort approximately the same as that used in accurately tuning VHF channels. A UHF tuning system comprising five pushbuttons and a separate manual tuning knob is considered to provide repeated access to six channels at discrete tuning positions.... |
(2) Tuning controls and channel readout. UHF tuning controls and channel readout on a given receiver shall be comparable in size, location, accessibility and legibility to VHF controls and readout on that receiver.
Note:
Differences between UHF and VHF channel readout that follow directly from the larger number of ... |
t is clear that a good faith effort to comply with the provisions of this section has been made.
(d) If equipment and controls that tend to simplify, expedite or perfect the reception of television signals (e.g., AFC, visual aids, remote control, or signal seeking capability referred to generally as tuning aids) ar... |
omparable capability and quality shall be provided for the UHF portion of that receiver.
(e) If a television receiver has an antenna affixed to the VHF antenna terminals, it must have an antenna designed for and capable of receiving all UHF television channels affixed to the UHF antenna terminals. If a VHF antenna i... |
(f) The picture sensitivity of a TV broadcast receiver averaged for all channels between 14 and 69 inclusive shall not be more than 8dB larger than the peak picture sensitivity of that receiver averaged for all channels between 2 and 13 inclusive.
(g) The noise figu |
re for any television channel 14 to 69 inclusive shall not exceed 14 dB. A TV receiver model is considered to comply with this noise figure if the maximum noise figure for channels 14-69 inclusive of 97.5% of all receivers within that model does not exceed 14 dB.
(1) The responsible party shall measure the noise figu... |
ach channel complies with the above limit.
(2) The responsible party shall insert in his files a statement explaining the basis on which it will rely to ensure that at least 97.5% of all production units of the test sample that are manufactured have a noise figure of no greater than 14 dB.
<span class= |
"paren">(3) [Reserved]
(4) In the case of a TV tuner built-in as part of a video tape recorder that uses a power splitter between the antenna terminals of the video tape recorder and the input terminals of the TV tuner or a TV broadcast receiver that uses a power splitter between the antenna terminals of two or more... |
ted from the noise figure measured at the antenna terminals of the video tape recorder or TV broadcast receiver for determining compliance of the UHF tuner(s) with the 14 dB noise figure limit.
(h) Digital television reception capability. TV broadcast receivers are required only to provide useable picture and soun... |
digital television signals.
(i) Digital television reception requirement.
(1) Responsible parties, as defined in § 2.909 of this chapter, are requ |
ired to equip with DTV tuners new TV broadcast receivers that are shipped in interstate commerce or imported from any foreign country into the United States and for which they are responsible to comply with the provisions of this section. For purposes of this section, the term “TV broadcast receivers” includes other vi... |
en">(2) The requirement to include digital television reception capability in new TV broadcast receivers does not apply to devices such as mobile telephones and personal digital assistants where such devices do not include the capability to receive TV service on the frequencies allocated for broadcast television servic... |
put selector switch, the selector switch shall provide, in any of its set positions, isolation between the antenna and cable input terminals of at least 80 dB from 54 MHz to 216 MHz, at least 60 dB from 216 MHz to 550 MHz and at least 55 dB from 550 MHz to 806 MHz. The 80 dB standard applies at 216 MHz and the 60 dB st... |
vision service and an antenna is not required for a TV broadcast receiver, provided compliance with the isolation requirement specified in this paragraph can be demonstrated and the circuitry following the antenna input terminal(s) has sufficient band-width to allow the reception of all TV broadcast channels authorized... |
="/on/2024-04-11/title-47/section-2.909" class="cfr external">§ 2.909 of this chapter, and any person that displays or offers for sale or rent television receiving equipment that is not capable of receiving, decoding and tuning digital signals.
(1) Such parties and persons shall place conspicuously and in close proxi... |
r Alert disclosure text required by paragraph (k)(3) of this section. The text should be in a size of type large enough to be clear, conspicuous and readily legible, consistent with the dimensions of the equipment and the label. The information may be printed on a transparent material and affixed to the screen, if the ... |
ice, such as on the top or front of the device, when displayed for sale, or the information in this format may be displayed separately immediately adjacent to each television broadcast receiver offered for sale and clearly associated with the analog-only model to which it pertains.
(2) If such parties and persons di... |
nic means, they shall prominently display in close proximity to the images or descriptions of such television broadcast receivers, in clear and conspicuous print, the Consumer Alert disclosure text required by paragraph (k)(3) of this section. The text should be in a size large enough to be clear, conspicuous, and read... |
archy">(3) Consumer alert. This television receiver has only an analog broadcast tuner and will require a converter box after February 17, 2009, to receive over-the-air broadcasts with an antenna because of the Nation's transition to digital broadcasting. Analog-only TVs should continue to work as before with cable an... |
22) or visit the Commission's digital television Web site at: http://www.dtv.gov.
[54 FR 17714, Apr. 25, 1993, as amended at 59 FR 25341, May 16, 1994; <a href="https://www.federalregister.gov/citation/61-FR-30532" class="fr-re |
ference" data-reference="61 FR 30532">61 FR 30532, June 17, 1996; 67 FR 63294, Oct. 11, 2002; 70 FR 38804, July 6, 2005; 70 FR 75743, Dec. 21, 2005; <a href="https://www.federalregister.gov/citation/72-FR-26560" class="fr-reference" data-referen |
ce="72 FR 26560">72 FR 26560, May 10, 2007; 73 FR 5681, Jan. 30, 2008; 77 FR 4913, Feb. 1, 2012; 81 FR 5052, Feb. 1, 2016; 83 FR 5021, F |
eb. 2, 2018]
§ 15.118 Cable ready consumer electronics equipment.
(a) All consumer electronics TV receiving equipment marketed in the United States as cable ready or cable compatible shall comply with the provisions of this section. Consumer electronics TV receiving equipment tha |
t includes features intended for use with cable service but does not fully comply with the provisions of this section are subject to the labelling requirements of § 15.19(d). Until such time as generally accepted testing standards are developed, paragraphs (c) and (d) of this section will apply only to the analog porti... |
lectronics TV receiving equipment
(b) Cable ready consumer electronics equipment shall be capable of receiving all NTSC or similar video channels on channels 1 through 125 of the channel allocation plan set forth in CEA-542-B: “CEA Standard: Cable Television Channel Identification Plan,” (incorporated by reference, ... |
iv id="p-15.118(c)">
(c) Cable ready consumer electronics equipment must meet the following technical performance requirements. Compliance with these requirements shall be determined by performing measurements at the unfiltered IF output port. Where appropriate, the Commission will consider allowing alternative measure... |
n">(1) Adjacent channel interference. In the presence of a lower adjacent channel CW signal that is 1.5 MHz below the desired visual carrier in frequency and 10 dB below the desired visual carrier in amplitude, spurious signals within the IF passband shall be attenuated at least 55 dB below the visual carrier of the d... |
ted. Measurements are to be performed for input signal levels of 0 dBmV and + 15 dBmV, with the receiver tuned to ten evenly spaced EIA IS-132 channels covering the band 54 MHz to 804 MHz.
(2) Image channel interference. Image channel interference within the IF passband shall be attenuated below the visual carrier ... |
0 dB from 714 MHz to 804 MHz. The 60 dB standard applies at 714 MHz. In testing for compliance with this standard, the desired input signal is to be an NTSC signal on which the visual carrier is modulated with a 10 IRE flat field with color burst and the aural carrier is unmodulated and 10 dB below the visual carrier. ... |
east ten evenly spaced EIA IS-132 channels covering the band 54 MHz to 804 MHz.
(3) Direct pickup interference. The direct pickup (DPU) of a co-channel interfering ambient field by a cable ready device shall not exceed the following criteria. The ratio of the desired to undesired signal levels at the IF passband on... |
channels shall be at least 50 dB. The desired input signal shall be an NTSC signal having a visual carrier level of 0 dBmV. The visual carrier is modulated with a 10 IRE flat field with color burst, visual to aural carrier ratio of 10 dB, aural carrier unmodulated. The equipment under test (EUT) shall be placed on a r... |
rier of the EUT tuned channel. Measurements shall be made with the EUT tuned to six EIA IS-132 channels, two each in the low VHF, high VHF and UHF broadcast bands. On each channel, the levels at the IF passband due to the desired and interfering signals are to be measured.
(4) Tuner overload. Spurious signals withi... |
carrier of the desired channel using a comb-like spectrum input with each visual carrier signal individually set at + 15 dBmV from 54 to 550 MHz. The desired input signal is to be an NTSC signal on which the visual carrier is modulated with a 10 IRE flat field with color burst and the aural carrier is unmodulated and ... |
rier of the desired channel using a comb spectrum input with each signal individually set at + 15 dBmV from 550 to 804 MHz. Measurements shall be made with the receiver tuned to at least three evenly spaced EIA IS-132 channels covering the band 550 MHz to 804 MHz.
(5) Cable input conducted emissions.
< |
span class="paragraph-hierarchy">(i) Conducted spurious emissions that appear at the cable input to the device must meet the following criteria. The input shall be an NTSC video carrier modulated with a 10 IRE flat field with color burst at a level of 0 dBmV and with a visual to aural ratio of 10 dB. The aural carrier ... |
exceed the limits in the following table:
From 54 MHz up to and including 300 MHz-26 dBmV
From 300 MHz up to and including 450 MHz-20 dBmV
From 450 MHz up to and including 804 MHz-15 dBmV
(ii) The average of the measurements on multiple channels from 450 MHz up to and including 804 |
MHz shall be no greater than −20 dBmV. Measurements shall be made with the receiver tuned to at least four EIA IS-132 channels in each of the above bands. The test channels are to be evenly distributed across each of the bands. Measurements for conducted emissions caused by sources internal to the device are to be made... |
ass="cfr external">paragraph (c)(3) of this section.
(d) The field strength of radiated emissions from cable ready consumer electronics equipment shall not exceed the limits in § 15.109(a) when measured in accordance with the applicable procedures specified in <a href="/on/2024-04-11/title-47/section-15.31" class="... |
rnal">§§ 15.31 and 15.35 for unintentional radiators, with the following modifications. During testing the NTSC input signal level is to be + 15 dBmV, with a visual to aural ratio of 10 dB. The visual carrier is to be modulated by a 10 IRE flat field with color burst; the aural carrier is to be unmodulated. Measurement... |
n/59-FR-25341" class="fr-reference" data-reference="59 FR 25341">59 FR 25341, May 16, 1994, as amended at 61 FR 18509, Apr. 26, 1996; 65 FR 64391, Oct. 27, 2000; 68 FR 68546, Dec. 9, 2003; <a href="https://www.federalregister.gov/citation/69-FR- |
2849" class="fr-reference" data-reference="69 FR 2849">69 FR 2849, Jan. 21, 2004; 69 FR 57861, Sept. 28, 2004; 77 FR 4913, Feb. 1, 2012]
§ 15.119 [Reserved]
<h4 da |
ta-hierarchy-metadata='{"path":"/on/2024-04-11/title-47/section-15.120","citation":"47 CFR 15.120"}'>§ 15.120 Program blocking technology requirements for television receivers.
(a) Effective July 1, 1999, manufacturers of television broadcast receivers as defined in section 15.3(w) of this chapter, including personal ... |
inition, must ensure that one-half of their product models with picture screens 33 cm (13 in) or larger in diameter shipped in interstate commerce or manufactured in the United States comply with the provisions of paragraphs (c), (d), and (e) of this section.
Note:
This paragraph places n |
o restrictions on the shipping or sale of television receivers that were manufactured before July 1999.
(b) All TV broadcast receivers as defined in § 15.3(w), including personal computer systems meeting that definition, with picture screens 33 cm (13 in) or larger, measured diagonally, or with displays in the 16:9 ... |
19.8 cm (7.8 in) or greater in height and digital television receivers without an associated display device shipped in interstate commerce or manufactured in the United States shall comply with the provisions of paragraphs (c), (d), and (e) of this section.
<span |
class="paragraph-hierarchy">(c) Transmission format.
(1) Analog television program rating information shall be transmitted on line 21 of field 2 of the vertical blanking interval of television signals, in accordance with § 73.682(a)(22) of this c |
hapter.
(2) Digital television program rating information shall be transmitted in digital television signals in accordance with § 73.682(d) of this chapter.
(d)</spa |
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