A test of the system will be conducted on the ISS from 1915 UTC July 30 to 1430 UTC July 31. The standard ARISSat-1/KEDR 2m downlink band plan should be transmitted. The satellite FM signal will also be downlinked on 437.55 MHz. ( borrowed from the details at www.AMSAT.org – go read more !)
Here is the posted frequency chart. Testing is about to start .!.!.
2011_ARISSat-1_Frequency_Chart
WB5RMG : RadioActive Blog 
