Features 1、TNC Connector Antenna: Equipped with a TNC connector, this antenna ensures stable and reliable connections. 2、GPS L-1, BDS B1 Frequency: Supporting GPS L-1 and BDS B1 frequencies, this antenna offers compatibility with multiple positioning systems. 3、Wide Temperature Range: With a temperature range of -35℃ to +80℃, this antenna can withstand extreme weather conditions. 4、Professional Installation Is Required: To ensure proper installation and prevents product damages, professional installation is recommended. Specification This antenna is designed to provides accurate timing for various applications. Features: TNC Connector Antenna: Equipped with a TNC connector, this antenna ensures stable and reliable connections. GPS L-1, BDS B1 Frequency: Supporting GPS L-1 and BDS B1 frequencies, this antenna offers compatibility with multiple positioning systems. Wide Temperature Range: With a temperature range of -35℃ to +80℃, this antenna can withstand extreme weather conditions. Professional Installation Is Required: To ensure proper installation and prevents product damages, professional installation is recommended. Specifications: Main color: white Frequency range: GPS L-1 BDS B1 High Resistance: 50 Ohms Gain: 35bBi VSWR: ≤2.0 Voltage/Current: 3~12VOLT/≤ 20ma Connector Type: TNC Waterproof Rating: IP67 Operating Temperature: -35°C To +80°C Package size: 85 * 85* 75mm / 3.3 * 3.3 * 3.0in Package weight: 138g / 4.9ounce Packing List: 1 * Antenna Package List 1 * Antenna