Mariachi Jalisco, especially in a region called Los Altos. After the Revolution, the charreada became a national sport in Mexico and rings were constructed specifically for them, followed by professional charro associations. With the breakup of the large haciendas, charros were no longer economically necessary but were used as a cultural ideal, especially by the film industry in the mid-20th century. The first charro movies date from the 1920s, but the first to sing mariachi was Tito Guízar in "Allá en el Rancho Grande" in 1936. The character was played by Jorge Negrete in films such as "¡Ay, Jalisco... no te
WARC bands codified in official recommendations, such as the IARU Region 1 HF Manager's Handbook, which states: Contest activity shall not take place on the 10, 18 and 24 MHz bands. Non-contesting radio amateurs are recommended to use the contest-free HF bands (30, 17 and 12m) during the largest international contests. (DV05_C4_Rev_07) Canada is part of region 2 and as such is subject to the IARU band plan. Radio Amateurs of Canada offers the bandplan below as a recommendation for use by radio amateurs in that country but it does not have the force of law and should only be considered a