BB4503

Antennas RF Overview

The BB4503 is a straight whip RF antenna manufactured by TE Connectivity, designed for the UHF frequency band. It operates within a frequency range of 450MHz to 470MHz, with a center frequency of 460MHz. The antenna provides a gain of 3dBi and features an NMO base mount interface. Its maximum height is 13.000 inches (330.20mm), and it exhibits a Voltage Standing Wave Ratio (VSWR) of 2. This component is classified as a base-loaded 5/8 wave antenna equipped with a load coil and a black collinear rod.

Antennas RF Feature Summary

• Features a straight whip mechanical style with an integrated load coil and black collinear rod for base-loaded 5/8 wave operation.
• Equipped with an NMO base mount interface for secure installation on vehicle or fixed platforms.
• Constructed with ABS housing and triple-plated brass fittings to ensure durability in RF applications.

Antennas RF Applications

• UHF mobile radio communications
• GMRS (General Mobile Radio Service) systems
• ISM band data transmission

Antennas RF Procurement Notes

Verify the specific ordering suffix and accessory requirements before purchase. The antenna typically requires separate procurement of mounting hardware and springs. Confirm RoHS3 compliance status and check current availability through authorized distributors, as lead times may vary. Ensure the NMO base compatibility matches the intended installation surface.

Antennas RF Selection Notes

Select this model when a 3dBi gain is required for the 450-470MHz band. The NMO mount dictates compatibility with standard magnetic or permanent vehicle mounts. Consider the 13-inch height constraint for clearance. Compare against the BB4502NS if lower gain (2.4dBi) is acceptable for a different form factor.

Antennas RF Part Context

This component belongs to TE Connectivity's line of mobile coil antennas, specifically elastomer spring packages. It is part of the BB series, which focuses on base-loaded whip designs for UHF applications. The product is currently active and supported by official datasheets detailing its electrical and mechanical specifications.

Antennas RF Replacement Considerations

The BB4502NS is a directly associated product offering similar frequency coverage but with 2.4dBi gain. Verify that the difference in gain and physical dimensions meets system requirements before substitution.