Mariachi in front of the plaza to flag down passing cars. In 2010, the government renovated the plaza to make it more tourist-friendly, adding new paving, gardens, police, security cameras, painted facades, and a museum dedicated to mariachi and tequila. Although mariachis can be hired in Mexico City over the phone or on the internet, many people still prefer to come to the plaza, hear the musicians and haggle over the price. About 2,500 mariachis hold union cards to work in the plaza, but as many as 4,000 may circulate through on a busy weekend. The size of a Mariachi group
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