HG104574DU-GPS

Antennas RF Overview

The L-com HG104574DU-GPS is a tri-band duplexed mobile antenna kit designed for multipoint communication systems. It integrates three distinct frequency ranges: VHF (108-174 MHz), UHF (450-520 MHz), and public safety bands (746-870 MHz). The unit includes an integral NMO mount with an attached GPS antenna, utilizing a low-loss combination mount structure. Key electrical specifications include a gain of 2 dBi across the operational bands and a maximum power handling capacity of 150 Watts. The antenna supports Right Hand Circular, Linear, and Vertical polarization modes. Physical dimensions indicate a maximum height of 3.270 inches (83.06 mm). The system employs integral N-Type male connectors for each band interface.

Antennas RF Feature Summary

• Tri-band duplexing capability integrating VHF, UHF, and public safety frequencies into a single mounting assembly
• Integrated GPS antenna functionality combined with a low-loss NMO mount structure
• Supports multiple polarization configurations including right-hand circular, linear, and vertical orientations
• High power handling capacity suitable for demanding mobile radio applications

Antennas RF Applications

• Multipoint mobile communication systems for service vehicles
• Public safety vehicle installations requiring simultaneous multi-band connectivity
• Emergency response units needing integrated navigation and communication capabilities
• Fleet management vehicles operating across diverse radio frequency bands

Antennas RF Procurement Notes

Verify that the specific application requires the exact tri-band configuration of 108-174 MHz, 450-520 MHz, and 746-870 MHz to ensure compatibility with existing radio equipment. Confirm that the NMO mount type matches the vehicle roof installation requirements. Ensure that the connector types align with the transceiver interfaces. Check environmental ratings if operation in extreme temperatures is anticipated. Validate that the 150W power rating exceeds the maximum output of the connected transmitters to prevent damage.

Antennas RF Selection Notes

Select this model when a consolidated mounting solution is required for three specific radio bands alongside GPS reception. Consider the physical height constraint of approximately 83 mm for clearance purposes. Evaluate the need for right-hand circular polarization support if communicating with satellite or specialized mobile platforms. Assess whether the integrated duplexer simplifies cabling compared to separate antenna installations. Determine if the NMO mount provides sufficient stability for the intended vehicle class.

Antennas RF Part Context

This component belongs to the L-com mobile antenna portfolio, specifically designed for vehicular communications. It represents a convergence of RF transmission hardware and navigation aids. The product line focuses on reducing installation complexity by combining multiple functional antennas into a single mechanical assembly. This approach minimizes aerodynamic drag and roof penetration points compared to discrete antenna setups.

Antennas RF Replacement Considerations

No direct substitute part numbers are publicly confirmed for this specific tri-band configuration. Alternative solutions may require separate antennas for each band and a standalone GPS unit, increasing installation complexity. Verify compatibility with existing coaxial cabling and connector types when considering alternative brands.