So somebody can explane me how can i bind this sistem:

http://www.towerhobbies.com/products/towj0224.html

first time i have 2.4 and i can`t understand how....

google how to bind it.do you already have it?? if not save your money and buy a spektrum.

if you already have it, read it's manual.

i have allrady and i haven`t manual... thank you

The Tactic binds the same way the Futaba does:

TX on
RX on

Press and hold the bind button on the RX until the light goes out.
Release the bind button and the light should flash
The light should go solid red and then the RX is bound

Easy!