B4305CNS

Antennas RF Overview

The TE Connectivity B4305CNS is a UHF whip antenna operating within the 430MHz to 450MHz frequency range, with a center frequency of 440MHz. It features a straight whip design with an NMO base mount and omnidirectional radiation pattern. The antenna provides a peak gain of less than 6 dBi (specifically cited as 5dBi in some documentation) and maintains a VSWR of 2. Constructed with high-heat ABS material over a solid brass core, it requires no ground plane. Maximum height is 36.000 inches (914.40mm).

Antennas RF Feature Summary

• Base loaded 5/8 over 5/8 wave design requiring no ground plane.
• Molded high heat ABS construction directly around solid brass for durability.
• Gold plated contacts ensure corrosion resistance and optimal power transfer.
• NMO base mount facilitates secure vehicular installation.

Antennas RF Applications

• Vehicular UHF communication systems
• External mount radio installations
• Mobile load coil antenna applications

Antennas RF Procurement Notes

Verify component authenticity through authorized TE Connectivity channels or certified distributors. Confirm that the received unit matches the B4305CNS designation and includes original manufacturer documentation. Check RoHS compliance status and ECCN classification (5A991G) for regulatory requirements. Ensure storage conditions respect the MSL rating of 1 (unlimited) to maintain material integrity prior to installation.

Antennas RF Selection Notes

Select this model when a ground-plane-free solution is required for UHF band operations between 430MHz and 450MHz. The NMO mounting interface dictates compatibility with standard vehicular roof mounts. Consider the physical dimensions, specifically the 36-inch maximum height, to ensure adequate clearance for the intended vehicle or structure. The 5dBi gain specification suits general mobile communication needs without excessive directivity.

Antennas RF Part Context

This component belongs to the TE Connectivity Laird Mobile Load Coil Antenna series, designed for robust mobile RF applications. It is categorized under UHF antennas suitable for vehicular use. The part number suffix 'CNS' typically denotes specific configuration details such as the spring-loaded or closed-coil variant within the broader B4305 product family.

Antennas RF Replacement Considerations

Consult official TE Connectivity catalogs for direct cross-references within the B4305 series. Verify that any substitute maintains the NMO interface, 430-450MHz frequency range, and similar gain characteristics. Generic replacements may not offer identical ground-plane independence or mechanical fitment.