How To Change Frequencies - Reely ROAD Helldevil Manual De Instrucciones

e) How to change frequencies
Transmitter
A rapid change of frequencies is possible simply by unplugging an interchangea-
ble plug in crystal on the back of the transmitter and then plugging in another one
of a different frequency.
Crystals for both the transmitter and receiver must be matched with each other.
Make sure that the crystal is fully inserted in the transmitter and receiver, not
partially.
Crystal
12
Receiver
Plug in an interchangeable crystal into the receiver for a rapid change of frequen-
cies.