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Futaba 2.4 Receiver Antenna Installation

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Old 04-08-2010, 08:11 PM
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All Day Dan
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Default Futaba 2.4 Receiver Antenna Installation

Here is an image of how I have installed my Futaba dual antennas. As you can see, they are against the side of my plane and held in place with a length of Sullivan Nyrod inner tube. The ends of the antennas are exposed. Can the end of the antennas be enclosed in the nyrod without any adverse effects? What else is being used? Dan.
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Old 04-08-2010, 08:31 PM
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Mikecam
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Default RE: Futaba 2.4 Receiver Antenna Installation

I now run all of mine inside the tube because I had one break at the end of the plastic shielding. Was it vibration or a bad antenna, good question.
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Old 04-08-2010, 08:57 PM
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Default RE: Futaba 2.4 Receiver Antenna Installation

I run most all mine insdie a tube as well. I also have put shrink tubing on the ends to protect the antenna wire. It is fragile.

2.4 does not care about the plastic, etc. Big chunks of metal and carbon fiber are its greatest enemies.

Keep in mind that it is only the bare wire that is the actual antenna as well. The rest is shielded coaxial cable that does not act as an antenna.
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Old 04-08-2010, 10:07 PM
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Default RE: Futaba 2.4 Receiver Antenna Installation

I run the two 2.4GHz antennas inside plastic drinking straws. The straws are bent to shape and kept in place with a dab of epoxy. The plastic straws don't have any effect on the 2.4 RF signal. I've done this for the past 3 years on several different planes. Works great.
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Old 04-09-2010, 10:46 AM
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Default RE: Futaba 2.4 Receiver Antenna Installation

Thank you JC, Mike and Silent for the fast and detailed responses. I also received an email from Futaba's support confirming that enclosing the antennas completely inside the yellow inner rods of the Sulivan Nyrods is acceptable. It's all good news. Dan.
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Old 04-09-2010, 11:10 AM
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Default RE: Futaba 2.4 Receiver Antenna Installation

As I have said, the number ONE major concern is carbon fiber. It is an RF sponge for 2.4 GHz. Next are big chunks of metal like batteries, engines, etc. Those can physically block 2.4.

Keep your antennas away from that stuff and you have little to worry about. Plastic, fiberglass, wood, etc. All essentially transparent to 2.4GHz RF.
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