1. Product DescriptionThe TDXL-802M Beidou antenna adopts eight arm coupling and four point feeding technology, supporting the reception of Beidou second and third generation satellite navigation signals. Built in low-noise amplifier, using two-stage filters, with good out of band suppression and strong anti-interference ability, ensuring normal operation in harsh electromagnetic environments and meeting high-precision measurement requirements. Suitable for occasions that require volume and weight, such as handheld devices, tablets, drones, and micro RTK portable devices.

2. Technical features1. Multi arm and multi feed zero phase center technology ensures right-handed circular polarization and phase center stability;2. Exquisite low noise, high gain amplification, and excellent out of band suppression;

3. Small size, light weight, easy to carry and install;4. The antenna housing has characteristics such as resistance to high and low temperature impacts, waterproofing, etc., providing a guarantee for the antenna to work in the field for a long time.3. Main technical indicatorsSupporting satellite signals:BD:B1I、B3I、B1C、B2a、B2b；GPS:L1、L2、L5；GLONASS:G1、G2；Galileo：E1、E5a、E5b

Polarization modeRight-handed circular polarizationVertex gain≥2.0dBiHorizontal coverage angle360oOutput standing wave ratio (passive)≤1.5Axis ratio≤2dBElevation gain≥ -3dBi @ elevation angle 30o ≥ 0dBi @ elevation angle 70oLow noise amplifier gain34±3dBNoise coefficient≤1.5dBOutput voltage standing wave ratio (active)≤1.8working voltage 3~12VDCWorking current≤35mAOutput interfaceSMA-J (internal screw and internal needle)Appearance sizeφ23mm*56mm(±1mm）weight≤16gcolourblackworking temperature -40℃~+65℃Waterproof requirementsIP67Storage temperature-55℃~+70℃Explanation: 

1. The sealing ring needs to be well pressed against the antenna support plane, which is the primary condition for achieving IP67 protection level. 

2. O-RING sealing ring has an inner diameter of 10.1mm and a cross-section of 1.6mm

3. Appearance product size