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:HX103 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; This item is a full-band helix GNSS antenna that supports receiving GPS L1/L2/L5, for BeiDou B1/B2/B3, for GLONASS L1/L2/L3 E1/E5/E6 signals, suitable for muilt-systems, high-precision measurement and positioning fields. HX103 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: As Shown Material: plastic Cable length: about 3 meters Package Contents: 1 x HX103 Active Helix GPS Antenna 1 x Base 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.