QWB162 RF Antenna Equivalent & Substitute Parts

Part Overview

The QWB162 is a 162MHz VHF whip antenna manufactured by TE Connectivity Laird, designed for base mount applications with NMO termination. This antenna operates across the 162MHz to 174MHz frequency band with 0dB gain and 2 VSWR specification. The product is classified as obsolete, making identification of equivalent components necessary for system maintenance, repair, and replacement applications where continued operation is required.

Substiute Parts

QWB162

TE Connectivity LairdIn Stock: 755QWB162 Datasheet

Current PartRFQ

QW162

NTE Electronics, IncIn Stock: 16889QW162 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The provided substitute part list contains QW162, manufactured by NTE Electronics, Inc. However, a critical incompatibility exists between the main part and this listed substitute.

QWB162 Classification: RF Antenna (VHF frequency band, 162MHz center frequency, NMO base mount termination)

QW162 Classification: Through-hole resistor (620 Ohms ±2%, 0.25W, metal oxide film composition)

Substitution Logic Assessment: The QW162 is a passive resistor component with electrical specifications (620 Ohms resistance, ±2% tolerance, 0.25W power rating) and mechanical specifications (axial package, 0.091" diameter, 0.256" length) that are fundamentally incompatible with RF antenna requirements. Resistors and antennas operate on different functional principles and cannot substitute for one another in any application context.

Conclusion: No valid substitute relationship exists between QWB162 and QW162 based on allowed electrical and mechanical parameters for RF antenna components.

Parameter Comparison

Engineering Selection Recommendations

The QWB162 is an obsolete RF antenna component. When replacement is required, selection must be based on the following criteria derived from provided specifications:

Mandatory Electrical Parameters:

• Operating frequency range: 162MHz to 174MHz minimum
• Antenna type: Whip or equivalent radiating element
• Gain specification: 0dB or equivalent performance
• VSWR: 2 or better

Mandatory Mechanical Parameters:

• Termination: NMO connector interface
• Mounting: Base mount configuration
• Height: 17.000 inches (431.80mm) or functionally equivalent

Compliance Requirements:

• RoHS compliance status must be maintained
• ECCN and HTSUS classifications must be verified for the replacement component

The listed substitute QW162 does not meet any of the mandatory electrical or mechanical parameters required for RF antenna substitution and cannot be used as a replacement for the QWB162.

Frequently Asked Questions (FAQ)

Q: Why is QW162 listed as a substitute for QWB162 when they are different component types?

A: The provided substitute list contains an error. QW162 is a resistor component, while QWB162 is an RF antenna. These are fundamentally different product categories with no functional overlap. No substitution relationship exists.

Q: What parameters must match for a valid RF antenna substitute?

A: Valid RF antenna substitutes must match the frequency range (162MHz ~ 174MHz), termination type (NMO), mounting method (base mount), antenna configuration (whip/straight), and electrical performance specifications (0dB gain, 2 VSWR).

Q: Can I use a different antenna type if the frequency range matches?

A: No. The antenna type (whip, straight) and mounting configuration (base mount) are mechanical parameters that determine physical integration into the system. These must be matched for proper installation and performance.

Q: Is RoHS compliance required for a substitute part?

A: RoHS compliance status should be maintained for consistency with the original component specification and regulatory requirements. The original QWB162 is RoHS Compliant.

Q: What does NMO termination mean, and why is it important?

A: NMO (N-type Mobile Omni) is a specific connector interface standard. The termination type determines mechanical and electrical compatibility with the mounting base and RF transmission line. Substitutes must use identical termination types.

Q: Can the antenna height be different from 17 inches?

A: Antenna height directly affects resonant frequency and radiation pattern. The 17.000-inch specification is a critical mechanical parameter. Substitutes must match this dimension or provide documented equivalent performance at the specified frequency range.