1: Light weight. Which is especially suitable for drones, handheld devices, wearable devices and other devices that have requirements on mass and volume, which can greatly reduce the load burden. 2: Easy to install. The antenna is fed and signal-transmitted through a standard SMA-J connector cable, just connect the antenna connector to the signal connector of the terminal device. 3: Excellent omnidirectional radiation characteristics. The antenna adopts a four-arm helical structure. Compared with the traditional microstrip antenna, it has better low-elevation gain and wide-angle circular polarization characteristics, and can receive more low-elevation satellite signals. 4: Antenna has a stable phase center, which minimizes the influence of the antenna on measurement errors; 5: The antenna circuit adopts anti-interference technology, which can still work normally in a complex environment with certain interference; Antenna casing has the characteristics of high and low temperature impact resistance, waterproof, and UV protection, which provide protection for the antenna to work in for a long time. Color: Black Material: plastic Package Contents: 1 x GNSS Helix Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.