ARE YOU SURE??? The Japanese use 27mhz also, but they run a half step in Freq different with some of there 27mhz crystals. I know because at a ROAR race they don't allow the half step crystals.
You can use any of the USA crystals in your 27mhz receiver, thats not a problem. But if your going race some tracks really don't like you using the half stepped Freq. and I know ROAR won't allow it for some odd reason. I even showed them my FCC license but NO GO...
I run half stepped Freq. crystals(Japanese)all the time in my off-road buggies. Just so I don't have to worry about someone turning on there Radio. A lot of guys don't like it, but I show them on my hand held Freq receiver its in spec.. Most of the time there are 1 or 2 radios out there that aren't in spec... Sooo Just ask if your racing before hand. BUT AGAIN ANY USA 27mhz CRYSTAL WILL WORK IN YOUR 27mhz RECEIVER!!!
An to You and Your Family Welcome to the States!!!
Bradley J. Gotori