At orbit # 2112, almost vertically from my QTH, I did a PicFall transmission, with only 18 W in a 6 element UHF Yagi. This transmission was converted from UHF to VHF by ARISSat linear transponder. See the result in received spectrogram on VHF with a DCA antenna and home made VHF to HF converter, and a SDR-IQ controlled by SpectraVue, here:

http://www.qsl.net/py4zbz/arissat.htm#s

73 de Roland.