ETRAB4903

Antennas RF Overview

The ETRAB4903 is a UHF whip antenna from the Phantom Elite series by TE Connectivity, designed for vehicular mounting. It operates within the 490MHz to 512MHz frequency range with a center frequency of 490MHz. The component features an NMO base mount and provides a gain of 3dBi. It supports a maximum power input of 150W and maintains a VSWR of 2. The physical height is limited to 86.36mm (3.400 inches).

Antennas RF Feature Summary

• Whip-style design optimized for vehicle roof installation via NMO base.
• Engineered for single-band UHF operation in the 490-512MHz spectrum.
• Supports high-power transmission up to 150W with stable impedance matching.

Antennas RF Applications

• Vehicular two-way radio communication systems
• UHF band mobile telemetry applications
• Specialized emergency service vehicle communications

Antennas RF Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm exact electrical tolerances and mechanical dimensions. Ensure the NMO base compatibility matches the vehicle mounting surface. Confirm RoHS compliance status if required for specific regulatory environments. Cross-reference part numbers with official TE Connectivity catalogs to avoid substitution errors.

Antennas RF Selection Notes

Select this model when a dedicated UHF whip antenna is required for vehicles operating strictly between 490MHz and 512MHz. The NMO mount ensures secure attachment to metal roofs. Consider the 150W power rating for high-output transceivers. Compare against multi-band alternatives if broader frequency coverage is needed beyond this specific UHF segment.

Antennas RF Part Context

This component belongs to the Phantom Elite series, which focuses on robust vehicular RF solutions. It complements other models like the ETRAB4503, differing primarily in the targeted frequency band. The series emphasizes durability and performance for mobile radio environments, utilizing standard NMO mounting interfaces common in automotive and industrial vehicle fleets.

Antennas RF Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult TE Connectivity directly for obsolescence notices or direct replacements.