choisan

iTrader: (5)

please pm if you have one to sell thanks

jpye19

iTrader: (1)

You most likely wont find the 903 module, but you can have the 901 or 902 updated by ko to the frequency hopping software.

choisan

iTrader: (5)

will ping ko japan per your advice about it, thanks

choisan

iTrader: (5)

replied from ko japan, 901 and 903 using different pcb board, upgrade/update is not possible

jpye19

iTrader: (1)

I live in the US and KO America did the update on my 901. My 901 will now work with a kr411fh receiver. Also if you have older receivers like a 408, those will need to be updated as well.