You can see how the experimental broadcasting of OK2BVG/OM9AAI, OM4UU and OM1II on medium waves from the ship M/V Žitava turned out on the page of Luboša OK2BVG - www.ok2bvg.cz.
The article was published in the magazine RADIO REVUE number 11/2012 (http://www.DX.cz). His site contains interesting information from broadcasting on medium, long and even longer waves. Luboš is also the administrator of the OK0EMW beacon, which you can tune into at 505.06 kHz.