JCA235

Overview

The JCA235 is a GPS and Compass active antenna manufactured by JC Antenna. It operates within the frequency range of 1561.098-1575.42MHz. The integrated Low Noise Amplifier (LNA) provides a gain of 28±2dB or 30±2dB depending on specific configuration, with a noise figure of ≤1.5dB. It requires a supply voltage of 3~5V DC. The physical dimensions are 25x25x4mm, featuring an axial ratio of 3dB (max). The unit utilizes adhesive mounting for installation.

Feature Summary

• Active amplification for enhanced signal reception in GNSS applications
• Compact adhesive mounting design suitable for space-constrained environments
• Integrated low noise amplifier to minimize signal degradation

Applications

• GPS navigation systems
• Compass integration modules
• GNSS positioning devices

Procurement Notes

Verify the specific LNA gain specification (28±2dB vs 30±2dB) against the official datasheet revision prior to procurement, as variations exist across sources. Confirm the operating voltage range matches the system power supply. Ensure the adhesive mounting method aligns with the target assembly surface requirements. Cross-reference the frequency range to confirm compatibility with the intended satellite navigation signals.

Selection Notes

Select this component when a compact, adhesive-mounted active antenna is required for GPS and compass functionality. The choice depends on the need for integrated LNA performance with specified noise figures. Consider the physical footprint of 25x25x4mm for enclosure constraints. Verify that the 3~5V DC supply requirement fits the host device's power architecture before finalizing the selection.

Part Context

JC Antenna specializes in GNSS, 4G/5G, and WiFi solutions. The JCA235 belongs to their active antenna portfolio, designed for precise positioning and heading applications. This model integrates RF front-end components directly into the antenna structure to improve sensitivity compared to passive alternatives.

Replacement Considerations

Publicly confirmed substitute part numbers for the JCA235 are not available in the provided documentation. Consult the manufacturer for direct replacements or equivalent specifications.