JCA042

Overview

The JCA042 is a passive GPS antenna manufactured by JC Antenna, designed for automotive applications. It operates at a center frequency of 1575.42 MHz with a bandwidth of ±5 MHz. The antenna features right-hand circular polarization and provides a zenith gain of 3 dBic. Its voltage standing wave ratio is less than 1.5 within the specified bandwidth. The unit measures 30x30x14 mm and utilizes an SMA connector. It functions without external power or amplification circuits, directly transmitting received signals to the host device.

Feature Summary

• Passive operation requiring no power supply or internal amplifying circuits
• Supports optional installation via magnet, adhesive, or screw mounting methods
• Designed specifically for automotive GNSS signal reception

Applications

• Automotive GPS navigation systems
• Vehicle tracking devices
• GNSS receiver integration in mobile platforms

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure compatibility with required cable lengths and connector types. Confirm that the passive design aligns with system requirements lacking external power sources. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Ensure the SMA interface matches the host equipment input specifications prior to purchase.

Selection Notes

Select this component when a low-profile, passive antenna solution is required for vehicle-mounted GPS applications. The compact dimensions facilitate discreet installation on various surfaces. Consider the passive nature of the design, which eliminates the need for DC power delivery through the coaxial cable. Verify that the 3 dBic gain and VSWR performance meet the sensitivity requirements of the target receiver module.

Part Context

The JCA042 belongs to the JC Antenna portfolio of GNSS solutions, specifically targeting the automotive sector. It is categorized as a passive RF antenna operating in the L1 band. The product line emphasizes versatile mounting options and compact form factors suitable for integration into vehicle roofs or windshields. It serves as a dedicated signal reception component for global positioning systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult the manufacturer's official replacement guide or contact technical support directly for compatible alternatives. Generic replacements may differ in gain, VSWR, or mounting configurations.