FIRESTIK KW-4RD 4 ft Original 5/8 Wave RED - Durable CB Antenna
FIRESTIK KW-4RD 4 ft Original 5/8 Wave RED - Durable CB Antenna
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Our review of the FIRESTIK KW-4RD finds a compact, purpose-driven CB antenna best suited to drivers and riders who need solid performance from a short, adaptable antenna. The single biggest reason to buy is its 5/8 wave length design combined with a high-performance loading coil, which helps maximize transmit and receive range from a 4 ft package while still fitting on trucks, vans, motorcycles and ATVs. The review notes the antenna requires final fine tuning (SWR) for best results, but in the right mounting position it delivers dependable CB performance and NOAA weather reception.
Key Features
- 5/8 Wave Length Design: Provides improved radiation efficiency and better range than shorter whip styles when mounted with an adequate ground plane.
- 400 Watt Rating: Handles legal CB transmit power comfortably, giving confidence during extended use and heavier duty transmissions.
- Single or Dual Configurations: Can be used alone on metal-bodied vehicles or in a dual co-phased setup on any vehicle type for flexible installation.
- Hi-Performance Loading Coil: The integrated coil helps maximize both transmit and receive functions including NOAA weather alerts on compatible radios.
- 3/8 x 24 Threaded Base: Standard threaded base with tapered contact end offers reliable mechanical and electrical connection on common mounts.
Who It's For
The FIRESTIK KW-4RD is aimed at CB users who need a balance of compact size and effective performance: people driving trucks, vans or autos with a metallic ground plane, and riders on motorcycles or ATVs who will mount it in a co-phased dual setup. Installers who appreciate a rugged, purpose-built CB antenna and who are comfortable doing final SWR tuning after mount placement will get the most from it.
It is not ideal for buyers who refuse any final adjustments or who need a no-tune, plug-and-play solution; the unit explicitly requires fine tuning in the final mounting location. If you need an ultra-short decorative antenna with limited performance, look elsewhere.
Pros & Cons
Pros
- Compact 4 ft length delivers better range than short whips while remaining vehicle-friendly.
- High-performance loading coil improves transmit/receive and allows NOAA weather reception on capable radios.
- Versatile mounting options: single use on metal vehicles or dual co-phased on any vehicle material.
- Durable 3/8 x 24 threaded base with tapered contact end for standard mounts.
Cons
- Requires fine tuning and SWR adjustments after final mounting, which adds installation time.
- Red finish may not match every vehicle aesthetic preference.
Specifications
| Model | KW-4RD |
| Length | 4 ft |
| Wave Length | 5/8 Wave |
| Power Rating | 400 Watts |
| Base Thread | 3/8 x 24, tapered contact end |
| Configuration | Single or dual co-phased |
| Special Feature | Hi-performance loading coil |
Our Verdict
The FIRESTIK KW-4RD is a sensible choice for CB users who want a compact, high-performing antenna that can be adapted to a variety of vehicles. It offers strong transmit/receive capability and NOAA reception when tuned properly, making it good value for anyone comfortable performing final SWR adjustments to optimize performance.
Frequently Asked Questions
Can this antenna be used on a motorcycle?
Yes, it can be used on a motorcycle in a dual co-phased configuration; single use requires a metallic ground plane.
Does it need tuning after installation?
Yes, the antenna requires fine tuning and SWR adjustments in the final mounting location for best performance.
Will it receive weather alerts?
The hi-performance loading coil supports NOAA emergency weather alert reception on radios that include that feature.
Editor's Take
The FIRESTIK KW-4RD is a compact, adaptable 4 ft CB antenna that delivers improved transmit and receive performance thanks to its 5/8 wave design and hi-performance loading coil; it is best for users willing to perform final SWR tuning for optimal results.

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