DUPLEX TF module fits this transmitter well but you can also use Duplex TU and mount it
inside the transmitter. Antenna can be placed to the original place. In this case we
recommend to use HE7 assembly kit. During handling with the transmitter, it must be
switched off.It is necessary to solder. Put the transmitter on a soft pad to avoid damage.
Switch off the transmitter
Turn upside down
Unscrew 6 screws
Open rear casing
Hitec Eclipse 7