A fpv antenna tube is made to prevent receiver antennas from being cut by the propellers and protect the receiver from crashes. If you are not drone-savvy, you have most probably heard little about this small but useful accessory. We invite you to read this Q&A article where we are going to answer the most common questions about antenna tubes, explaining why they are so important and many other useful things.

1. What is a fpv antenna tube?

An antenna tube is a plastic tube in which the receiver's antenna is introduced, offering protection. The tube is made for FPV vehicles, which include drones, radio-controlled cars, planes and helicopeters that are piloted using the first-point view method. The method is used to drive a RC vehicle remotelly from the pilot's perspective. A camera mounted on the vehicle and a video monitor are the basic equipment that you need to perform this type of piloting.

2. How antenna tube protects the receiver?

Generally, receiver's antennas are very flexible. This makes them bend and reach the propeller when the vehicle moves at a high speed or when it accelerates fast. Now, by covering the antenna with a tube, the antenna becomes less flexible which prevents it from crashing into propellers. The tube gives also general protection to the fragile antenna, acting as an armor, while preserving the antenna's ability to send and receive radio signals.

3. Does the antenna become less sensitive?

No, the tube does not reduce the sensitivity of the antenna. Conversely, it makes it more responsive. The tube makes the antenna more stable and helps fix it in a place under a stable angle allowing achieve best signal.

4. What material is the tube made of?

The tube is made of durable, yet flexible plastic. While it helps stabilize the antenna, it does not make it stiff. You should know that if the tube makes the antenna stiff, it means that is of bad quality, because it doesn't allow to adjust the angle of the antenna so that it receives a better signal.

5. Are there any difficulties at mounting the tube?

Installation is easy, having you just to mount the tube onto the antenna. Given that the antenna is long, there is no way the tube can get out. Still, if you want to make sure that the tube stays firmly in place, you can add some glue. But, avoid adding much glue, because it can get hard to remove the damaged tube when replacing it with a new one.

6. Can I cut the tube to make it suit the size of my antenna?

The length of antennas vary depending on device. Luckily, if the tubes you bought online are longer than needed, you can cut them to fit the size of your antennas. Also, you can buy tubes that are twice as long as the receiver's antenna, then cut them in half, install and mount the cap.

7. When I need to buy antenna tubes?

Though fpv antenna tubes provide additional protection, they are not necessary. Still, if you are a beginner at driving remote-controlled devices, you are better off buying some tubes. Amateur pilots are likely to crash, as they haven't mastered yet the controls and their reaction time is slow, which increases the risk of impacts. Also, you would need some tubes when you have got an antenna that is too flexible. In this way, you will stabilize it.

8. Is the tube compatible with Frsky receiver?

Antenna tubes are not complex devices. They have a simple structure which makes them easy to standardize under all brands of receivers. If you have a Frsky drone, you will find it extremely easy to find tubes for receiver's antenna. If the tubes get damaged, you can order another package in any store specialized in selling fpv and rc stuff.

Still, it will be harder for you to find a replacement receiver in case yours gets broken. The safest place to find Frsky receivers is the Frsky official store. You can check out the large collection of Frsky receivers to choose the one that suits your vehicle. Being sold directly by the manufacturer, the items are cheaper than if you bought them from a third-party store.