I recently spent a lot of time on the road in my fiberglass RV, and immediately hit a wall trying to get reliable CB radio range. Fiberglass walls present unique grounding challenges that traditional antenna setups just can’t handle. After testing multiple setups, I compiled this list of the best cb antenna for fiberglass rv options that actually deliver consistent performance and signal clarity, ensuring you stay connected on the open road.
Contents
- Francis 300-CB22B Black 3 Foot Hot Rod CB Antenna AM|FM Ready
- Prostick 2` Foot Fiberglass 1000 Watt – Black CB Radio Antenna
- Prostick 4` Foot Fiberglass 1000 Watt – Black CB Radio Antenna
- RoadPro RP-83W Standard Series White 3′ Mirror Mount Fiberglass CB Antenna Kit
- Prostick 2` Foot Fiberglass 1000 Watt – Black CB Radio Antenna with Heavy Duty Stainless Steel Spring
- Prostick 3` Foot Fiberglass 1000 Watt – Black CB Radio Antenna
- Prostick 3 Foot Fiberglass 1000 Watt Black CB Radio Antenna with Heavy Duty Black Stainless Steel Spring.
- Comparison Short Insights
- Final Verdict: Selecting Your Ideal RV Antenna
- Common Questions About Best CB Antenna for Fiberglass RV
- How do I mount a CB antenna on a fiberglass RV without a good ground plane?
- What length is the best cb antenna for fiberglass rv to maximize range?
- Do I still need to tune the SWR even if the antenna is “Factory Tuned”?
- Is a spring necessary for a fiberglass antenna on an RV?
- Can I mount a CB antenna directly to a plastic ladder or railing on my RV?
- Why do fiberglass antennas handle so much power compared to magnetic mounts?
Francis 300-CB22B Black 3 Foot Hot Rod CB Antenna AM|FM Ready
This Francis Hot Rod antenna is a fantastic choice if you want reliable performance without the bulk, especially since it’s designed to handle both CB and AM/FM frequencies. Its traditional, sleek style helps reduce wind drag load on your RV, making it ideal for high-speed highway travel. The quality construction includes a chromed brass ferrule for a secure, durable connection, offering a great blend of classic styling and modern efficiency for RVers.
Key features that stand out:
– 36″ Overall Length: Provides a good compromise between performance and clearance height.
– AM|FM Ready: Dual function capability minimizes the number of antennas required.
– 100 Watts Rated: Perfect for standard CB usage without high power requirements.
Pros:
– Dual-purpose (CB/AM/FM) is highly convenient.
– Low wind drag design is great for RV roofs.
– Durable chromed brass ferrule provides a strong base.
Cons:
– Lower power rating compared to some high-wattage Prostick models.
Best for: RV owners looking for a stylish, dual-purpose antenna that minimizes rooftop clutter.
Expert Opinion: This Francis model is often overlooked, but its design addresses the specific need for reduced wind resistance on larger vehicles while offering decent low-power performance.
Prostick 2` Foot Fiberglass 1000 Watt – Black CB Radio Antenna
When mounting space is tight, or you need to clear low obstacles, this 2-foot Prostick model is a serious contender for the best cb antenna for fiberglass rv. Despite its shorter size, it handles an impressive 1000 watts of power, providing robust transmission capability when paired with a proper high-wattage radio. Crucially for RV use, it features the exclusive “VibraSorb” Anti-breakage Design that helps the antenna withstand the constant jarring and movement of road travel.
Key features that stand out:
– 1000 Watt Rating: Excellent power handling for maximum range.
– Made in the USA: Signifies quality construction and durability.
– VibraSorb Anti-breakage Design: Enhances the lifespan, a must-have for rough RV journeys.
Pros:
– Extremely durable, built to resist vibration damage.
– Short length is ideal for height constraints.
– High power rating suitable for serious CB operators.
Cons:
– Shorter length means slightly less theoretical range than 4-foot models if not perfectly tuned.
Best for: RVs frequently facing height restrictions (e.g., parking garages, low branches) that still require high power handling.
Expert Opinion: For fiberglass RVs, minimizing physical stress on the antenna mount is essential, and the VibraSorb technology in this 2-foot model makes it remarkably resilient against road vibrations.
Prostick 4` Foot Fiberglass 1000 Watt – Black CB Radio Antenna
The 4-foot Prostick model offers the best balance of range and power handling for many RV applications. Because a 4-foot antenna is often the optimal length for efficient CB operation (wavelength consideration), pairing that length with a massive 1000 Watt rating delivers exceptional performance. Like its smaller counterparts, it utilizes the VibraSorb design and comes Factory Tuned within the standard CB range, reducing complex initial setup headaches.
Key features that stand out:
– Optimal 4’ Length: Provides high efficiency and range compared to shorter options.
– 1000 Watt Rating: Handles high transmission power reliably.
– Factory Tuned: Reduces the amount of initial SWR calibration needed.
Pros:
– Excellent potential range due to optimized length.
– Very high power capacity.
– Reliable durability thanks to the VibraSorb technology.
Cons:
– Might require folding or removal if passing under very low structures.
Best for: RVers prioritizing maximum legal range and reliable high-power transmission on open highways.
Expert Opinion: When space allows, a 4-foot fiberglass antenna provides the most efficient signal radiation. This model’s 1000W rating ensures it won’t be the bottleneck in a powerful CB system.
RoadPro RP-83W Standard Series White 3′ Mirror Mount Fiberglass CB Antenna Kit
For those looking for a complete, easy-to-install package, the RoadPro RP-83W kit is a superb choice. This kit includes the antenna, a sturdy anodized mirror mount, and 9 feet of coax cable—everything you need for a straightforward installation on a railing or ladder of your fiberglass RV. The antenna itself is 3 feet long and rated for 500 Watts, offering reliable communication without demanding extreme power capabilities.
Key features that stand out:
– Complete Kit: Includes antenna, mount, and coax cable, simplifying purchasing.
– Anodized Mirror Mount: Provides a secure and durable mounting option, crucial where traditional body mounts fail.
– 20 Gauge Copper Wire: Rated for reliable 500 Watt performance.
Pros:
– Excellent value as a complete ready-to-install system.
– White color blends well with many RV exterior colors.
– Simple installation process, ideal for beginners.
Cons:
– The included 9’ coax may be too short for large Class A RVs.
Best for: First-time CB users or those needing a comprehensive, budget-friendly kit for easy ladder or railing mounting.
Expert Opinion: The biggest advantage of this RoadPro kit is the inclusion of the mount. On fiberglass RVs, finding a strong, reliable ground can be tough, and a good mirror or rail mount helps isolate the setup.
Prostick 2` Foot Fiberglass 1000 Watt – Black CB Radio Antenna with Heavy Duty Stainless Steel Spring
This variant of the 2-foot Prostick adds an essential component for RV mounting: a Heavy Duty Stainless Steel Spring. This spring acts as a shock absorber, protecting both the antenna mast and the RV mount point from unexpected impacts, such as low-hanging tree limbs or severe road bumps. It maintains the high performance of the standard Prostick 2′, including the 1000 Watt rating and the VibraSorb design, making it one of the toughest short-length options available.
Key features that stand out:
– Includes Heavy Duty Spring: Provides crucial physical protection against impacts.
– Broad Tuning Range: Excellent flexibility for precise SWR calibration (26.000 to 29.500 MHz).
– 1000 Watt Rating: High power capacity maintained despite the compact size.
Pros:
– Spring drastically improves antenna resilience against physical hazards.
– Retains the powerful 1000W rating.
– Extremely robust construction ideal for off-road or bumpy travel.
Cons:
– The added height of the spring must be accounted for during installation.
Best for: RVs that frequently travel on rough, unpaved roads or through heavily wooded areas where impacts are likely.
Expert Opinion: I always recommend an integrated spring mount when installing any antenna on a large, high-profile vehicle like a fiberglass RV. It’s cheap insurance against expensive mast damage.
Prostick 3` Foot Fiberglass 1000 Watt – Black CB Radio Antenna
The 3-foot Prostick bridges the gap between the compact 2-foot and the high-efficiency 4-foot models. This length is a great compromise if the 4-foot version is too tall but you still want better performance than the 2-foot provides. With a 1000 Watt rating and the proprietary VibraSorb anti-breakage construction, this antenna ensures both maximum power transfer and long-term durability. It’s also factory-tuned for quick installation.
Key features that stand out:
– 3-Foot Length: Optimal compromise between clearance and performance.
– 1000 Watt Rating: Suitable for powerful radio setups.
– Made in the USA: Confirms quality manufacturing standards.
Pros:
– Excellent overall blend of size, efficiency, and power handling.
– Very durable and reliable on the road.
– Factory-tuned for easy initial setup.
Cons:
– Does not include a spring, which may be necessary depending on the mounting location.
Best for: RVers who need higher performance than a 2-foot model but have strict height limits that preclude a 4-foot antenna.
Expert Opinion: In many real-world tests, the 3-foot fiberglass option provides nearly the range of a 4-foot model but with significantly fewer clearance issues, making it a highly practical option for general RV use.
Prostick 3 Foot Fiberglass 1000 Watt Black CB Radio Antenna with Heavy Duty Black Stainless Steel Spring.
This is the fully protected version of the highly popular 3-foot Prostick. By including a Heavy Duty Black Stainless Steel Spring, this model ensures maximum physical durability while maintaining peak communication efficiency. The spring not only protects against physical strikes but also adds a professional, rugged look due to the black stainless finish. It retains the powerful 1000W rating and broad tuning capability necessary for consistent range on the highway.
Key features that stand out:
– Integrated Black Spring: Offers superior protection and an attractive finish.
– 1000 Watt Rating: Maximum power handling capacity.
– VibraSorb Anti-breakage Design: Ensures longevity under demanding conditions.
Pros:
– Maximum durability and protection from impacts.
– Excellent size-to-performance ratio (3-foot).
– Black spring matches the antenna and enhances aesthetics.
Cons:
– Higher initial cost due to the inclusion of the heavy-duty spring.
Best for: The serious RVer or motorhome operator who demands a robust 3-foot antenna setup that is fully protected against physical damage.
Expert Opinion: If you are mounting your antenna where it is exposed to potential contact—like above the roofline or near the ladder—the spring is non-negotiable, and this pre-assembled option simplifies the process.
Comparison Short Insights
When choosing the best cb antenna for fiberglass rv, performance usually correlates with length, but durability is also key.
The Prostick lineup clearly dominates the power handling ratings, capable of handling 1000 Watts, making them superior for users running high-output radios. The Francis and RoadPro models top out around 100-500 Watts, adequate for standard CB usage but limiting if you upgrade your radio later.
For physical resilience, the Prostick models featuring the Heavy Duty Stainless Steel Spring (both 2′ and 3′ versions) are the most rugged, providing impact absorption that protects the base mount on your RV. If you often hit low clearances, choosing one of the spring-equipped models is highly recommended.
The RoadPro kit is the only complete antenna solution that includes the coax and mount, making it the best entry-level option for instant installation. Meanwhile, the Francis model provides a unique benefit, offering AM/FM readiness in addition to CB, reducing rooftop clutter.
Final Verdict: Selecting Your Ideal RV Antenna
Choosing the absolute best cb antenna for fiberglass rv depends heavily on your specific travel style and power needs.
If Maximum Range and Power are Required:
The Prostick 4` Foot Fiberglass 1000 Watt – Black CB Radio Antenna is the undisputed winner. Its optimal length and massive power rating provide the best signal performance possible in a fiberglass setup, provided you have the vertical clearance.
If Durability and Protection are Paramount:
Opt for the Prostick 3 Foot Fiberglass 1000 Watt Black CB Radio Antenna with Heavy Duty Black Stainless Steel Spring. The spring feature makes this the toughest choice, ensuring longevity when traveling rough terrain.
If Budget and Ease of Installation are Key:
The RoadPro RP-83W Standard Series White 3′ Mirror Mount Fiberglass CB Antenna Kit offers the best plug-and-play value, providing all necessary components in one affordable package.
Common Questions About Best CB Antenna for Fiberglass RV
How do I mount a CB antenna on a fiberglass RV without a good ground plane?
Fiberglass RVs lack the necessary metal skin to act as a proper ground plane (or counterpoise). You have two primary solutions. First, use a no-ground-plane (NGP) antenna system, which is specifically designed to function without a traditional ground. Second, if using a standard antenna like the Prostick models, you must create an artificial ground plane. This usually involves running metal foil, mesh, or strips of metal tape horizontally under the roof (or surrounding the mount) to mimic the ground surface a standard antenna needs.
What length is the best cb antenna for fiberglass rv to maximize range?
Generally, the closer the antenna length is to a quarter-wavelength (about 9 feet for the CB frequency), the better the efficiency and range. For practical RV mounting, 4-foot fiberglass antennas like the Prostick 4′ model usually provide the best balance of range and manageable size. Shorter antennas (2-3 feet) are necessary for clearance but will sacrifice some range efficiency.
Do I still need to tune the SWR even if the antenna is “Factory Tuned”?
Yes, always. While antennas like the Prostick models come factory-tuned to a broad frequency range, the Standing Wave Ratio (SWR) reading is highly dependent on your specific mounting location, the quality of your coax cable, and the proximity of other metal objects (like AC units or vents) on your RV roof. An SWR meter is essential to fine-tune the antenna length for the lowest possible SWR (ideally 1.5:1 or below) once installed on your vehicle.
Is a spring necessary for a fiberglass antenna on an RV?
While not strictly mandatory for signal transmission, a heavy-duty stainless steel spring is highly recommended for RV installations. RV antennas are often mounted high and are susceptible to wind buffeting and impacts from low clearances (trees, drive-thru overhangs). A spring absorbs these forces, preventing the antenna mast from snapping or, more importantly, protecting the mounting point on the fragile fiberglass body.
Can I mount a CB antenna directly to a plastic ladder or railing on my RV?
It is generally not recommended to mount a CB antenna directly to plastic components. You need a sturdy, stable connection point, preferably a metal railing, ladder, or a heavy-duty bracket bolted directly into the RV’s underlying frame or supporting structure. If using a mirror or ladder mount (like the one included in the RoadPro kit), ensure the mount itself is securely grounded or part of your overall NGP setup if applicable.
Why do fiberglass antennas handle so much power compared to magnetic mounts?
Fiberglass antennas, especially those rated for 1000 watts like the Prostick models, are constructed using thicker gauge copper wiring wound internally within the mast. This design allows them to handle high electrical current and heat generated by powerful transmissions without burning out the coil, unlike the thin wiring often found in smaller, flexible antennas or standard magnetic mounts.
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