CWB1320S RF Antenna Equivalent & Substitute Parts

Part Overview

The CWB1320S is a 153MHz VHF whip antenna manufactured by TE Connectivity Laird, designed for base mount applications with NMO termination. This antenna operates across the 132MHz to 174MHz frequency band and delivers 3dB gain with a maximum power rating of 200W. The product is currently classified as obsolete, making identification of functionally equivalent substitute components essential for system maintenance, repair, and continued operational support.

Substiute Parts

CWB1320S

TE Connectivity LairdIn Stock: 1108CWB1320S Datasheet

Current PartRFQ

EM-MX5152-MP

Nearson Inc.In Stock: 1075EM-MX5152-MP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWB1320S is determined by strict alignment across the following critical parameters:

Mandatory Matching Criteria:

• Termination Type: NMO connector standard (electrical and mechanical interface)
• Antenna Configuration: Whip, straight form factor (physical and radiation pattern compatibility)
• Mounting Method: Base mount installation type
• Frequency Group: VHF band operation (f < 300MHz)
• Frequency Overlap: Operating range must encompass or substantially overlap the 132MHz–174MHz band

Performance Parameters:

• Gain specification (measured in dB or dBi)
• Power handling capacity (maximum watts)
• VSWR or return loss characteristics

The EM-MX5152-MP from Nearson Inc. qualifies as a substitute based on the following alignment:

• Identical NMO termination
• Identical whip, straight antenna type
• Identical base mount configuration
• VHF frequency group compliance
• Frequency range 152MHz–162MHz overlaps the critical 153MHz center frequency of the CWB1320S
• Comparable gain specification (2dBi vs. 3dB)
• Adequate power rating (100W vs. 200W)

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: EM-MX5152-MP

The EM-MX5152-MP is the qualified substitute for CWB1320S applications based on the following engineering criteria:

1. Interface Compatibility: Both components utilize NMO termination, ensuring direct mechanical and electrical compatibility with existing RF systems designed for the CWB1320S.

2. Antenna Configuration: Identical whip, straight form factor ensures equivalent radiation patterns and installation envelope compatibility.

3. Frequency Coverage: The EM-MX5152-MP operating range (152MHz–162MHz) encompasses the CWB1320S center frequency of 153MHz, providing functional frequency band coverage for primary applications.

4. Product Status Advantage: EM-MX5152-MP is classified as active production, ensuring long-term availability and supply chain continuity compared to the obsolete CWB1320S.

5. Regulatory Compliance: EM-MX5152-MP carries RoHS Compliant certification, meeting current environmental and hazardous substance restrictions applicable to electronic components.

Performance Trade-offs:

• Gain Differential: EM-MX5152-MP provides 2dBi gain versus CWB1320S 3dB specification. This 1dB reduction represents approximately 20% lower radiated power efficiency. Applications requiring maximum gain should evaluate system-level impact.

• Power Handling: EM-MX5152-MP maximum power rating is 100W versus CWB1320S 200W. Systems operating above 100W input power require verification that the substitute component meets thermal and reliability requirements.

• VSWR Data: CWB1320S specifies VSWR of 2; EM-MX5152-MP VSWR is not provided in available documentation. System impedance matching characteristics should be validated during integration.

Frequently Asked Questions (FAQ)

Q1: Can EM-MX5152-MP directly replace CWB1320S in existing installations?

A: Yes, for applications operating at or below 100W input power and where the 1dB gain reduction is acceptable. Both components share identical NMO termination, whip antenna configuration, and base mount interface. The EM-MX5152-MP frequency range (152MHz–162MHz) covers the CWB1320S center frequency of 153MHz. Systems exceeding 100W power input or requiring 3dB gain specification require engineering evaluation.

Q2: What is the frequency compatibility between these two antennas?

A: CWB1320S operates across 132MHz–174MHz with 153MHz center frequency. EM-MX5152-MP operates across 152MHz–162MHz with 157MHz center frequency. The EM-MX5152-MP range is narrower but fully encompasses the 153MHz operating point, ensuring functional compatibility for 153MHz-centered applications. Applications requiring operation across the full 132MHz–174MHz band cannot use EM-MX5152-MP as a complete substitute.

Q3: Are there mechanical installation differences between CWB1320S and EM-MX5152-MP?

A: No. Both components feature base mount configuration with NMO connector termination. Physical installation procedures are identical. Height specification for EM-MX5152-MP is not provided in available data; verify mounting clearance requirements if space constraints exist.

Q4: What is the impact of the 1dB gain difference?

A: The EM-MX5152-MP 2dBi gain versus CWB1320S 3dB represents approximately 20% lower radiated power efficiency. In link budget calculations, this translates to reduced effective radiated power or shorter communication range under identical transmit power conditions. Applications with marginal link margins should quantify this impact before substitution.

Q5: Why is CWB1320S classified as obsolete?

A: Product obsolescence indicates TE Connectivity Laird has discontinued manufacturing and support for this component. EM-MX5152-MP, classified as active production by Nearson Inc., provides continued availability and supply chain assurance for equivalent functionality.

Q6: Is EM-MX5152-MP RoHS compliant?

A: Yes. EM-MX5152-MP carries RoHS Compliant certification, meeting Restriction of Hazardous Substances requirements. CWB1320S RoHS status is not specified in available documentation.

Q7: What power levels can each antenna handle?

A: CWB1320S is rated for maximum 200W input power. EM-MX5152-MP is rated for maximum 100W input power. Applications requiring operation above 100W must use CWB1320S or identify alternative components with higher power ratings.

Q8: Are there packaging differences?

A: CWB1320S packaging is not specified. EM-MX5152-MP is supplied in bulk packaging. Verify packaging requirements for your procurement and inventory management processes.