171.045MHz         Lectrosonics  bag
905 - 925MHz (5ch) xWire         Rack 2
169.505MHz         Lectrosonics  Rack 4
622MHz             Vega          Rack 4
178.225MHz         EV            Rack 4
169.505MHz         Altec Lansing 
594.950MHz         Garwood       Rack 
601.350MHz         Garwood       Rack 9
604.650MHz?        Garwood       Rack 9
605.150MHz         Garwood
608.550MHz?        Garwood
530.550MHz         Garwood       Rack (Garwood System 3)



http://ff.audiotechnica.com/cgi-bin/freqcompat.cgi