This was a little confusing initially as they use the same Frequency (72) but divide the band up differently so that the available set of channels is different that those in use in the US. For example I was flying on channels 27 and 28 in the US but found those were "unacceptable numbers" here in Japan. Here I fly on 17 and 18 (well now only on 18 [:@] ) The channels seem to run up to the low twenties and then there is a big gap until you get to the 50's.

Anyway a Sanwa dual convertion crystal purchased here in Japan (cheap) works fine in an Airtronics Tx/Rx purchased in the US.

BTW, all radios here are set up for mode 1 which seems really awkward to me. I like having both elevator (AOA) and ailerons (bank) available on the same stick. Some the the Japanese guys commented that that my mode 2 Tx is just like a mini joystick on a video game!