JCA003

Antennas RF Overview

The JC Antenna JCA003 is a white GPS active antenna designed for mobile navigation applications. It features a dome shape with an SMA male connector and screw mount interface. The unit operates within the UHF frequency group, specifically covering 1.575GHz to 1.602GHz, with a center frequency of 1575.42±3MHz. Key electrical specifications include a bandwidth of CF±5MHz, right-hand circular polarization (RHCP), and a zenith gain of 2dBic. The internal Low Noise Amplifier (LNA) provides a gain of 28±2dB with a noise figure typically under 1.5dB VSWR. The antenna has a maximum height of 16.30mm and requires a working voltage between 2.2V and 5.0V.

Antennas RF Feature Summary

• Integrated low noise amplifier for enhanced signal reception
• Right-hand circular polarization for optimal satellite tracking
• Screw mount design for secure installation on mobile platforms

Antennas RF Applications

• Mobile GPS Navigators
• Fleet Management Systems
• GNSS Tracking Devices

Antennas RF Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct connector type and cable length configuration. Confirm that the required operating voltage range aligns with the target system power supply before procurement. Check for any updated datasheets regarding mechanical dimensions or environmental ratings to ensure compatibility with the intended enclosure or mounting surface.

Antennas RF Selection Notes

Select this component when a compact, screw-mountable active GPS antenna is required for mobile navigation systems. The integrated LNA makes it suitable for applications where signal strength may be compromised by vehicle structures. Ensure the host system can provide the specified 2.2V to 5.0V DC bias current through the coaxial cable. Consider the physical dimensions and RHCP requirement to match the GNSS receiver input specifications.

Antennas RF Part Context

The JCA003 belongs to the JC Antenna family of external GNSS solutions, specifically categorized as a GPS Active Antenna. It is part of a broader portfolio that includes GLONASS and multi-band variants like the JCA211. This model is distinct from passive antennas due to its built-in amplification circuitry, targeting users needing reliable performance in challenging signal environments without requiring large external arrays.

Antennas RF Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult the manufacturer directly for cross-reference information or equivalent models within the JC Antenna lineup that meet similar frequency and mounting requirements.