Features 1、Multi-arm spiral technology is used to ensure right-hand circular polarization and phase center performance, and reduce the influence of measurement errors 2、The antenna unit adopts air medium, which has the characteristics of high gain and small gain roll-off 3、Possess a good receiving effect for low-elevation satellite signals, ensuring that the satellites can still be received normally in some occasion with tighter obscuration 4、The three-proof outer cover provides a guarantee for the antenna to work in the field for a long time 5、Suitable for occasion that require volume and weight. Such as drones, small RTKs, sub-meter flat-panel hand-held devices, etc. 6、Supporting the L1 and L2 dual‑band satellite navigation signal reception of for Beidou II/GPS/GLONASS/GALILEO systems, and meets the current multi‑system compatibility and the demand for high‑accuracy measurement, can be widely used in high‑accuracy navigation and positioning occasion such as portable equipment and drones Specification Item Type: Drone Antenna Application Field: Suitable for occasion that require volume and weight. For example, drones, small RTKs, sub-meter flat-panel hand-held devices, etc. Support Satellite Signal: For Beidou: B1/B2/B3, for GPS: L1/L2, for GLONASS: G1/G2, for Galileo: El/E5b Impedance Matching: 50 ohm Polarization Method: Right-hand circular polarization Gain (zenith): ≥2.0 dBi Antenna Axis Ratio: ≤3dB Horizontal Coverage Angle: 360 Low Noise Amplifier Gain: 32±2dB Noise Figure: ≤1.5 dB Output Standing Wave Ratio: <1.8: 1 In-Band Flatness: ±2dB Working Current: ≤45mA Working Temperature: -40℃~+80℃ Storage Temperature: -45℃~+85℃ Humidity: 95% Non-condensing Protection Level: IР67 Output Interface: SMA How to Use: The utility model relates to the technical field of unmanned aerial vehicles, in particular to an RTK antenna installation structure and an unmanned aerial vehicle. The RTK antenna is installed on the unmanned aerial vehicle body and connected with a signal line, and the installation structure includes a support frame, a fixing piece and a connecting piece, the RTK antenna is fixed to the upper part of the support frame, the bottom of the support frame is fixed to the upper part of the body and is connected to the fixing part at the bottom of the body through the connecting part, and the signal wire passes through the support off the shelf. The RTK antenna installation structure provided by the utility model solves the shortcomings of the inconvenient installation of the existing RTK antenna. The structure is simple and reasonable, and the installation and disassembly are relatively convenient. An opening for the signal line to pass through can be opened on the circular connecting pipe according to the needs. The selective installation of the RTK antenna in an appropriate position overcomes the limitation of the existing installation structure of the installation position, which is beneficial to ensure the positioning accuracy. Package List 1 x Spiral Antenna 1 x User Manual