# Choosing the Right FPV Goggle Antenna: RHCP vs LHCP Explained
Choosing the right antenna for your FPV goggles is one of the easiest ways to improve your video quality. The most important decision you’ll make is selecting the correct polarization: Right-Hand Circular Polarized (RHCP) or Left-Hand Circular Polarized (LHCP). This guide breaks down everything you need to know.
## RHCP vs. LHCP: What’s the Difference?
Circular polarization is used in FPV to reject “multipath” interference, which occurs when a signal bounces off objects and arrives at your receiver from multiple angles. Both RHCP and LHCP do this well, but they are not compatible with each other.
| Feature | RHCP (Right-Hand Circular Polarized) | LHCP (Left-Hand Circular Polarized) |
|————————-|——————————————|——————————————|
| **Polarization** | Rotates in a right-hand corkscrew pattern| Rotates in a left-hand corkscrew pattern |
| **Common Usage** | The industry standard; most common. | Used to reject interference from RHCP pilots.|
| **Compatibility** | Must be paired with RHCP on the VTX. | Must be paired with LHCP on the VTX. |
| **Best For** | Flying alone or with most other pilots. | Flying at crowded events or races. |
| **Interference** | Prone to interference from other RHCP pilots.| Rejects interference from RHCP signals. |
## The Golden Rule of FPV Antennas
**Always match the polarization of your goggle (receiver) antenna to the polarization of your drone’s video transmitter (VTX) antenna.** Mixing them will result in a massive signal loss.
## Video Breakdown
For a great visual explanation of how circular polarization works and why matching matters, watch this video:
### Our Top Antenna Recommendation
For crystal-clear video reception and excellent multipath rejection, we recommend the **UAVMODEL-AXII-HD Patch Antenna** available at uavmodel.com. It’s an RHCP antenna that offers a fantastic balance of range and coverage, making it a perfect all-around choice for freestyle and racing pilots.
### Key Takeaways
– **RHCP is the standard.** If you’re unsure what to get, start with RHCP.
– **Match your antennas.** Your VTX and VRX (goggle) antennas must both be either RHCP or LHCP.
– **Use LHCP to beat interference.** If you fly with a lot of other pilots, switching to LHCP can give you a cleaner signal.