Description
A GPS Car DVD Active Antenna with SMA male is a type of antenna specifically designed for enhancing the reception of GPS signals for devices like car DVD systems, navigation systems, or GPS modules. Here are the key details and specifications typically associated with such antennas:
Features:
- Active Antenna:
- Includes an integrated Low Noise Amplifier (LNA) to amplify weak GPS signals.
- Provides better performance in areas with weak signal strength (e.g., urban canyons or dense forests).
- SMA Male Connector:
- The antenna terminates with an SMA male connector, commonly used for GPS devices.
- Compatible with a wide range of GPS receivers and car systems.
- Waterproof Design:
- Often comes with a waterproof housing for external mounting on vehicles.
- Ensures durability in outdoor conditions.
- Magnetic Base:
- Usually equipped with a magnetic base for easy mounting on metal surfaces like car roofs.
- Long Cable:
- Includes a cable (often RG174 or similar) for flexibility in positioning the antenna.
Specifications:
- Frequency Range: 1575.42 MHz (standard GPS L1 band).
- Gain: Typically ranges from 20 dB to 30 dB.
- Voltage: Operates on 3.3V to 5V, powered through the GPS receiver.
- Impedance: 50 ohms.
- Cable Length: Commonly 3m to 5m.
- Connector Type: SMA male.
- Operating Temperature: -40°C to +85°C.
- Waterproof Rating: IP65 or higher.
Applications:
- GPS navigation systems in vehicles.
- Dash-mounted or integrated car DVD players with GPS functionality.
- GPS trackers and modules requiring external antennas.
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