Morse code required for the privilege to use the HF bands. Until 2000, proficiency at the 20 wpm level was required to receive the highest level of amateur license (Amateur Extra Class); effective April 15, 2000, the FCC reduced the Extra Class requirement to five wpm. Finally, effective on February 23, 2007, the FCC eliminated the Morse code proficiency requirements from all amateur radio licenses. While voice and data transmissions are limited to specific amateur radio bands under U.S. rules, Morse code is permitted on all amateur bands—LF, MF, HF, VHF, and UHF. In some countries, certain portions of the amateur radio
Braille pattern dots-2 Braille pattern dots-2 The Braille pattern dots-2 ( ) is a 6-dot braille cell with the middle-left dot raised, or an 8-dot braille cell with its mid-high left dot raised. It is represented by the Unicode code point U+2802, and in Braille ASCII with the number "1". In unified international braille, the braille pattern dots-2 is used to represent a comma or other non-letter symbol or semi-letter. Related to Braille pattern dots-2 are Braille patterns 27, 28, and 278, which are used in 8-dot braille systems, such as Gardner-Salinas and Luxembourgish Braille. In the Japanese kantenji braille, the standard 8-dot