ORIGINAL: Bax
We didn't realize that FAQ was still there. The module for the 9V/9Z really isn't recommended to be used outside of those transmitters. Maybe once, but it's not a good match.
Bax,
Page 10 of the online users manual for the 9C also says that the TK modules may be used. No limitations/restrictions are indicated.
http://www.futaba-rc.com/manuals/9c-manual-v1_2.pdf
This is also consistent with the FAQ referenced earlier, and this answer from Krysta on RCU:
http://www.rcuniverse.com/forum/m_14...tm.htm#1455509
Note that TP modules CANNOT be used in 9V or 9Z transmitters, but that TK modules can be used in 9C's, acccording to the references.
Jon Lowe