Editing NTSC (section)

=== NTSC-J ===
Only [[Japan]]'s variant "[[NTSC-J]]" is slightly different: in Japan, black level and blanking level of the signal are identical (at 0&nbsp;[[IRE (unit)|IRE]]), as they are in PAL, while in American NTSC, black level is slightly higher (7.5&nbsp;[[IRE (unit)|IRE]]) than blanking level. Since the difference is quite small, a slight turn of the brightness knob is all that is required to correctly show the "other" variant of NTSC on any set as it is supposed to be; most watchers might not even notice the difference in the first place. The channel encoding on NTSC-J differs slightly from NTSC-M. In particular, the Japanese VHF band runs from channels 1–12 (located on frequencies directly above the 76–90&nbsp;MHz Japanese [[FM broadcasting|FM radio]] band) while the North American VHF TV band uses channels 2–13 (54–72&nbsp;MHz, 76–88&nbsp;MHz and 174–216&nbsp;MHz) with 88–108&nbsp;MHz allocated to FM radio broadcasting. Japan's UHF TV channels are therefore numbered from 13 up and not 14 up, but otherwise uses the same UHF broadcasting frequencies as those in [[Pan-American television frequencies|North America]].