I sent a brief reception report to Radio Slovakia via email in February 2006. They replied quickly and asked for my postal address. About a week later, according to the postmark, they sent me this QSL postcard. It arrived looking tattered, but I was glad to receive it as Radio Slovakia's shortwave future is far from assured. It was also a long-distance reception, with their transmitters an estimated 7500 miles away from me.
The distance to the transmitter seems to be similar for Australia and New Zealand, both of which I have also received. All other shortwave signals I've heard originated from within that distance.