I was doing some research on SSTV and thought the transfer rate was slightly too slow for an idea I had. I was wondering if it is possible to transmit modified Television over shortwave pirate bands. I realize 6 Mhz would be extremely too wide for shortwave, but I thought there might be a way to transmit a highly compressed form of image transfer over about 20 Khz with no audio and have it perform at a framerate of 15-30FPS. Any thoughts?