HI Alves, I am listening for you here in VK. I have my radio on 14.293 USB with an indicated waterfall frequency of 1000 hz - so hopefully that is where you are putting your RF. Software is fldigi 1.01 (now out of beta) in mfsk16 mode. I don't have windows on my hf computer so can't run any of these RS ID things unfortunately. What is the nature of the beacon - is it continuous or on a timer? Perhaps if you can beam towards VK early morning your time we might be able to find an illuminated 20m path.
73 es best of luck with it de Brett VK2TMG