This GPS antenna is designed for applications where you need a high-gain antenna to receive GPS signals with high accuracy. The 1575.42 MHz frequency corresponds to the L1 band used by GPS satellites. The high gain helps in receiving weak signals and improving the accuracy of GPS positioning. The choice of SMA/MCX connectors makes it compatible with a variety of GPS receivers and devices.   Frequency Range: 1575.42 MHz: This is the center frequency at which the antenna operates. GPS signals from satellites are transmitted at this frequency. Gain: 28 dBi: Gain measures the ability of the antenna to focus its radiated power in a specific direction. A higher gain indicates better directional focus. Voltage: 3~5V: The antenna operates within this voltage range. This voltage is typically supplied by the GPS receiver or the device it's connected to. Impedance: 50 ohms: This is the characteristic impedance of the antenna, which needs to match the impedance of the connecting cable or device for efficient signal transmission. Connector: SMA/MCX: This specifies the type of connector used on the antenna for attaching it to a GPS receiver or other devices. SMA and MCX are common connector types used in RF applications. Working Temperature: -40°C~ 80°C: The antenna can operate in a temperature range from -40 degrees Celsius to 80 degrees Celsius, making it suitable for a wide range of environmental conditions. Color: Black: This is the color of the antenna's housing. OEM: Available: OEM (Original Equipment Manufacturer) availability means that this antenna can be produced by manufacturers and customized or branded for specific applications or companies. VSWR: ≤2.0: VSWR (Voltage Standing Wave Ratio) measures how well the antenna impedance matches the impedance of the connected system. A VSWR of less than or equal to 2.0 is considered good and indicates minimal signal loss due to impedance mismatch.