LU11 R Trenque Lauquén was first logged in Finland by JMS/HS during LEM 227 in March 2006. The station has also been heard by Jari Ruohomäki (JPR) and by PÄ/JEÖ during LEM290 and LEM 303 in early February 2010 and 2011. The frequency 1280 is of course not straight forward during La Plata/Brazil cx due to the presence of R Tupí, Rio. There are a few additional La Plata stations to watch for though, such as ZP53 La Voz del Este and CX128 R Tacuarembó. These are quite unusual catches here in Scandinavia.
I received a nice email from Ricardo Neiser on LU11 confirming my report from February 2010.