On Saturday 10 July 2010, I have recorded this pass of VO-52. It is the linear transponder downlink between 145.875 and 145.925 MHz. I really don’t understand why people get so crowded in the middle of the passband when there is 50 kHz to play with.
Watch video on YouTube.
About 50 kHz below the VO-52 downlink you can occasionally see the APRS downlink from the International Space Station RS0ISS. I have decoded that transmission using the multimon software modem, see this article.