two of australia's most unusual medium wave stations were mobile stations 2xt and 3yb. they both operated in eras prior to the universal establishment of rural radio stations. 2xt was designed and operated by awa within the state of new south wales, from a nsw railways train, between november 1925 and december 1927. 2xt, which stood for "experimental train", visited over 100 rural centres. engineers would set up a transmitting aerial and the station would then begin broadcasting. this led to the further sales of awa products.