Quick Answer
Choose an FPV antenna based on your flying style: omnidirectional for freestyle and racing, directional for long range, and compact for whoop builds. Match the connector type (SMA, RP-SMA, MMCX, U.FL) to your VTX, and use the same polarisation (RHCP or LHCP) on both VTX and goggles.
Antenna Types
FPV antennas come in two main categories: omnidirectional and directional.
| Type | Pattern | Best For |
|---|---|---|
| Omnidirectional (cloverleaf, pagoda) | Equal in all directions | Freestyle, racing, proximity flying |
| Patch / panel | Directional cone | Long range, receiving only |
| Helical | Tight directional beam | Extreme long range, receiving only |
| Linear (whip) | Omnidirectional, single plane | Budget builds, non-critical use |
Most pilots use an omnidirectional antenna on the VTX and a patch antenna on their goggles for directional receiving. The TrueRC Sniper II is a popular directional receiver antenna that significantly extends range when pointed at your drone.
Polarisation: RHCP vs LHCP
Circular polarisation comes in two flavours: RHCP (right-hand) and LHCP (left-hand). Your VTX and receiver must use the same polarisation, or you lose roughly half your signal. RHCP is the standard convention in FPV. The only time you would use LHCP is if most pilots at your flying site are on RHCP, and you want to avoid picking up their signals.
Connector Types
Antenna connectors vary between VTX models. Getting the wrong connector is one of the most common mistakes when buying FPV antennas.
| Connector | Appearance | Common On |
|---|---|---|
| SMA | Threading on the outside, pin inside | TrueRC, Rush, some TBS |
| RP-SMA | Threading on the outside, hole inside | Walksnail, many budget VTXs |
| MMCX | Small push-on, snap-fit | DJI, Walksnail goggles |
| U.FL / IPEX | Tiny snap-on, fragile | AIO boards, micro VTXs |
The TrueRC Matchstick is available in both SMA and U.FL variants, making it a versatile option for different VTX mounting styles. Its carbon sleeve protects the antenna during crashes.
Gain and Size
Antenna gain is measured in dBi. Higher gain means a more focused signal, which gives longer range in one direction but weaker coverage in other directions. A standard omnidirectional antenna has around 1.5-3dBi gain. The TBS Triumph Pro offers strong omnidirectional performance with good durability. On the receiver side, the TBS Ninja Star is a compact, durable receiver antenna popular for goggle-mounted use.
Physical size matters. Larger antennas generally perform better, but add weight and get caught on things during crashes. For 5-inch builds, a standard 60-80mm antenna is a good balance. For micro quads and whoops, smaller antennas like the TrueRC Smol keep weight manageable.
Voltage Standing Wave Ratio (VSWR)
VSWR measures how efficiently power transfers from the VTX to the antenna. A lower VSWR number is better. An ideal antenna has a VSWR of 1.0:1. Most quality antennas sit between 1.2:1 and 1.5:1 across the 5.8GHz band. Cheap antennas often have poor VSWR, meaning they waste power as heat rather than radiating it. This is one area where spending a bit more makes a noticeable difference.
Antenna Placement on Your Build
Mount your VTX antenna above the frame with a clear line of sight to where you will be flying. Carbon fibre blocks 5.8GHz signals, so the antenna should be vertical and clear of the frame and battery. Use a 90-degree SMA elbow if needed to route the cable, but avoid placing the antenna flat against carbon. If you use two VTX antennas (diversity), angle them in a V configuration for better coverage.
Upgrading Your Antennas
Upgrading from the stock antennas that ship with most VTXs and goggles is one of the cheapest ways to improve your FPV experience. The difference between a cheap stock antenna and a quality mid-range antenna is significant in both range and signal clarity. Browse the antennas collection for options across all connector types and form factors. For more on how frequency and channels affect your video signal, see our FPV frequencies and channels guide. If you are deciding between analog and digital video systems, the analog vs digital comparison covers the antenna differences between the two systems.