Audio Carrier Standard Television Channel

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Television Frequencies - The RadioReference Wiki

https://wiki.radioreference.com/index.php/Television_Frequencies

1. 470-512 MHz (channels 14-20) - UHF-T Band used for private land mobile radio in certain areas. 2. 608-614 MHz (channel 37) - Reserved for radio astronomy. Audio, video and pilot frequencies are for reference only. 3. 698-746 MHz (channels 52-59) - Lower 700 MHz band. TV stations will vacate this band. Used by various wireless and broadband networks.

Analog TV Standards NTSC, PAL and SECAM - VOCAL

https://www.vocal.com/video/analog-tv-standards/

Analog TV signal in the channel actually consists of two signals: AM/VSB modulated video signal on one frequency carrier, and FM modulated audio signal located on the sound carrier that has a fixed offset from video carrier (typically 4.5 to 6 MHz depending on the standard). The TV receiver does the next sequence of actions:

US Television Channels - Overview

http://n2prise.org/ustvchan.htm

The standard NTSC video carriers are normally 1.25 MHz above the lower band edge of the channel, while the sound carrier is 0.25 MHz below the upper band edge of the channel. These two offsets are the result of the 4.5 MHz difference in the two carrier frequencies. As for the cable channels, there are different rules.

Worldwide TV Systems (NTSC, PAL, and SECAM)

http://www.paradiso-design.net/TVsystems_worldwide.html

Television Standards and color coding: Standard (converter field) vertical scan lines: vertical frequency/ refresh rate horizontal frequency: video band-width: audio carrier: color subcarrier frequency: NTSC M: 525: 59.94 Hz/59.94 fields/s 15734 Hz: 4.2 MHz: 4.5 MHz: 3.57954545 MHz (FCC) M b&w: 525: 60 Hz/60 fields/s 15750 Hz: 4.2 MHz: 4.5 MHz-PAL B PAL G PAL H: 625: 50 …

TV Channel, CATV and FM Broadcast Frequencies …

https://www.arrl.org/files/file/Technology/TV_Channels/TV_Broadcast_Frequencies.pdf

The frequency of the video carrier is 1.25 MHz above the lower edge, so for channel 2 the video is at 55.25 MHz. The color carrier is approx. 3.58 MHz above the _video_ carrier (N.B. not the lower edge), so for ch 2 it is 58.83 MHz. The audio carrier is 4.5 MHz above the _video_ carrier, so for ch 2 it is 59.75 MHz.

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