Tag Archives : Radio Rx

Radio Receiver Antenna Replacement

This is a short tips on radio Rx antenna replacement; in this case FUTABA 2.4 Ghz receiver. Crashes from major to minor ones might cause unexpected damage to your model’s parts. They can be either the model’s airframe or the electronics. One of the examples is the radio receiver or Rx unit which is one of the largest value in your investment.


When the model crashed, the Rx unit experienced a considerable huge amount of sudden pull or push force. The mounting Velcro / mounting double-sided tapes might be out of place; pulling the antennas along. The mistake comes when the antenna was secured on the airframe too tightly; the pull or push is sufficient enough to separate the antenna from the Rx unit.

Separated antenna

If we take a closer look at the receiver’s antenna, it requires more than a regular technique to solder the antenna coaxial cable back its header plug to restore the Rx unit back to factory performance.

Coaxial antenna

Therefore, it is much easier and safer to replace the antenna with the replacement parts. In this case, FUTABA provides the antenna replacement parts. The antenna replacement parts come with the header plug, which enable plug-and-play replacement procedure. However, they does not comes with the rubber bobbin ( black rubber ring ); you’ll have to use the originally provided bobbin from the Rx unit.

Antenna replacement parts

Notes : Before disassembling the Rx unit , if your item carries a warranty, opening and attempting your own repair, other than springs and ratchets, will void whatever warranty you have.

Futaba Rx unit





The replacement parts can be purchased from your local Great Planes authorized hobby store. Or you may contact directly to Futaba Service Center.



Strips of paper on tapes allow the antenna to be fastened in place, but easily remove if the receiver is accidentally displaced from its mounting location during a crash. This will prevent any unexpected antenna damage from a sudden pull or push.

Strips of paper on tapes

      Antenna placement

” Every new beginning comes from some other beginning’s end.” – Seneca