[AM] The station is rebroadcast through a synchronous repeater, WA2XPA Arecibo, which also broadcasts at 680 kHz. ==History== Its call letters are a partial abbreviation of the station`s original owners, the now-defunct Asociación de Productores de Azúcar, or Puerto Rico Sugar Grower`s Association. In the late 60`s, it was acquired by Hea... Found on http://en.wikipedia.org/wiki/WAPA_(AM)