B4705CNS

Antennas RF Overview

The B4705CNS is a closed-loop coil whip antenna designed for the UHF band, specifically operating within the 470MHz to 490MHz frequency range with a center frequency of 480MHz. It provides a peak gain of 5dBi and features an omnidirectional radiation pattern suitable for vehicular applications. The antenna utilizes an NMO base mount for secure installation and has a maximum height of 33.000 inches (838.20mm). It exhibits a VSWR of 2 and is constructed as a straight whip type. The component is RoHS compliant and classified under ECCN 5A991G.

Antennas RF Feature Summary

• Closed-loop coil design optimized for UHF vehicular communication bands
• Omnidirectional radiation pattern ensuring consistent signal coverage
• NMO base mount configuration for standardized vehicle installation

Antennas RF Applications

• Vehicular radio communications in the UHF spectrum
• Mobile telemetry systems requiring external mounting
• Public safety vehicle communication networks

Antennas RF Procurement Notes

Verify that the NMO base mount interface matches the vehicle fixture requirements. Confirm operational frequency alignment with the 470-490MHz range. Ensure environmental conditions are compatible with the standard specifications. Check for RoHS compliance needs if applicable to the project regulations. Validate mechanical dimensions against available mounting space constraints.

Antennas RF Selection Notes

Select this model when a high-gain omnidirectional solution is required for UHF mobile applications. The NMO base ensures compatibility with standard vehicle mounting hardware. Consider the physical height constraint due to the 33-inch length. This antenna is suitable for environments where robust mechanical mounting and broad coverage are prioritized over directional focusing.

Antennas RF Part Context

This component belongs to TE Connectivity's line of mobile load coil antennas. It is part of the B4705 series, which offers various configurations for different mounting styles and frequencies. The B4705CNS specifically denotes the closed-loop coil variant with NMO base mounting, distinguishing it from other models in the family that may feature different bases or coil designs.

Antennas RF Replacement Considerations

Consult official TE Connectivity documentation for direct substitutes within the B4705 series. Verify that any replacement maintains the NMO base interface and 470-490MHz frequency range. Cross-reference mechanical dimensions to ensure fitment compatibility. Confirm electrical performance metrics match the original system requirements.