Best Fibreglass CB Antenna

Best Fiberglass CB Antenna

CB radios, even the best ones, come with a maximum power limit of 4 watts. While it might not sound too bad on paper, this will not be enough for most drivers, which is why there is a high demand for the best fiberglass CB antennas.

A CB antenna will not only let you receive signals from over a longer distance but will also allow you to transmit over a longer distance.

While you are on the hunt for the best CB antenna that ticks all the boxes of your requirements, there are a couple of things you should be aware of.

Best Fibreglass CB Antenna

You need to factor in various things including your vehicle type, model, and the output power of the radio you intend to set up within your car. Also, the brand and type of antenna, its length, and where you intend to mount it matter as well.

More About Fiberglass CB Antennas

Fiberglass CB antennas are the most popular kind of CB antennas. They are fiberglass poles wrapped with copper wire and coated with protective material.

From a price point of view, they are comparatively cheaper than the other kinds of CB antennas, but do not let the low price tag fool you. They work well and are quite efficient.

These antennas are the best choice for larger vehicles, such as 4×4 and off-roaders, as they are made to survive in harsh and rough conditions. They are also highly durable and long-lasting due to their sturdy construction.

They are between two to seven feet in length and can be mounted almost anywhere, thus providing a great deal of flexibility. You can mount them on your hood channel, mirror arms, or even the stake holes of your vehicle, and they will work absolutely fine.

Fiberglass antennas are generally more flexible than regular antennas. Thus, they are a better choice for off-roading and rash driving vehicles, as their flexibility makes them resistant to wind.

Moreover, the majority of the fiberglass CB antennas come either factory-tuned or with a tunable tip, which simplifies the tuning process by making the antenna easy to adjust, even if you are a total beginner at it.

When buying one, keep the mounting place of the antenna in your mind. You can temporarily mount them on the roof of your vehicle or put it together with adhesive, but this method is not the most reliable.

So, a better and alternate way for mounting antennas on your vehicle is to mount those using drilling holes or installing them on bumpers, stake-holes, and tool-boxes. This not only helps the antenna last longer but also keeps it well set.

Now, without much ado, let’s have a look at some of the best fiberglass CB antennas on the market.

Best Fiberglass CB Antenna: Comparison Chart

Top 5 Best Fiberglass CB Antenna Reviews 2022

1. FireStik FS-4BK 4′ (r) li Fs Series Tunable Tip CB Antenna – 900 Watts Black

The FireStik FS CB antenna is the best seller in the world of fiberglass CB antennas due to its top-notch performance and high quality.

It is a long-lasting antenna that offers a great range.

Compatible with all standard CB studs and mounts due to its male 3/8″ x 24 thread, the antenna has a tunable tip and a high-performance loading coil. It can be used in single or dual configurations.

With a range of 4 to 6 miles, it is ideal for pickup trucks, jeeps, off-road vehicles, semis, and commercial equipment. We tried this one, and were quite impressed with not just the range but also the quality. The signals are pretty strong and you will be able to enjoy neat communication once you get this one connected to your device.

Not only is the antenna great in all its aspects, but the customer service offered by FireStik is also worth mentioning. All your concerns, from mounting to transmitting, will be dealt with in a timely and considerable way.


  • Easy to mount and easy to tune for optimal performance
  • Strong TX/RX performance
  • 5-year replacement warranty by the manufacturer


  • Does not work on an aluminum vehicle body

The FireStik FS-4BK 4′ (r) Ii Fs Series Tunable Tip Cb Antenna – 900 Watts Black is the first among the best fiberglass CB antennas, as it sets a standard for performance and ruggedness which is almost impossible to match. Go for this one if you’re looking for an antenna that’s made to last.

2. Francis 300-CB26B Black 5.5′ Hot Rod CB Antenna

antenna for cb radio

The CB antenna by Francis is a double quarter-wave fiberglass CB antenna whip that has a threaded base, which makes it ideal for all standard antenna mounts.

It has a double helical winding and a chromed brass ferrule, which further enhances its durability and flexibility. Its traditional sleek style reduces the wind drag load on it during long and rough journeys, and its pre-tuned unique top cap design ensures maximum performance.

As it is pre-tuned, it does not require a lot of setups, but it is recommended that you check the SWR (Standing Wave Ratio) to ensure safe operation levels, or else it can cause damage to radio equipment.

The rugged build of this CB antenna makes it ideal for pickup trucks, semis, and large passenger vehicles.

This antenna offers a range of up to 7 miles but we noticed that it might decrease to 5 miles in some conditions.


  • No tuning required – hence requires little setup compared to other CB antennas
  • Compatible with all standard CB studs and mounts available
  • Quite a durable antenna


  • SWR (standing wave ratio) needs to be checked manually

The Francis 300-CB26B Black 5.5′ Hot Rod CB Antenna is one of the best fiberglass CB antennas as it is not only flexible but also provides better coverage compared to several similar fiberglass CB antennas.

3. TRAM 3-B-HC Fiberglass CB Antenna (Black, 3 Feet)

best fiberglass cb antenna

The TRAM 3-B-HC fiberglass antenna is a perfect combination of affordability, resilience, and efficiency.

We loved the quality of the fiberglass used by the company. It’s pretty impressive and makes the antenna highly durable.

It covers a complete CB band at a power rating of 1500 watts while providing a frequency range of 26MHz to 29 MHz.

The antenna is compatible with all standard CB studs and mounts due to the 3/8-Inch x 24 thread mounting. While it has been discontinued by the manufacturer, it’s still a pretty good pick as it is among the most affordable CB antennas out there.


  • Not very expensive hence affordable for the masses
  • Very durable antenna
  • More distant and clear coverage than its competitors


  • Low on flexibility, so you might need to add a spring to the bottom
  • The top is not adjustable, so it needs to be cut in order to be tuned

The TRAM 3-B-HC Fiberglass CB Antenna (Black, 3 feet) is one of the best fiberglass CB antennas available on the market. Get your hands on this one if you are looking for a cheap CB antenna.


fiberglass cb antenna

The fiberglass CB antenna by Aries is a powerhouse that provides full value for your money. It comes at an affordable price making it a perfect choice for everyone, amateurs, and experts alike.

With a 500 watt power rating, the antenna comes with a heavy-duty double groove aluminum mirror mount, thus saving you the hassle of finding the perfect mount for your antenna.

It has high-quality coax with molded PL-259’s, which further adds to its durability. Depending upon the set up of the antenna and signal obstructions, the range of this antenna can vary between 3 miles to 10 miles.

While it works well, it might not be suitable for all vehicles as a range of 3 miles might not be enough for all. Consider the region you usually drive in before you pick this one.


  • An aluminum mirror mount comes with the antenna
  • Setting it up is easy as no screws and bolts are involved; you only have to attach it using a clamp
  • Ideal for rugged terrain, including off-roaders


  • Cord length is a little short, so it needs to be dealt with care

The Aries Automotive ARIES 10822 SINGLE 4` FOOT 500 WATT CB RADIO ANTENNA KIT W/MIRROR MOUNT AND COAX (BLACK) is a fantastic product that provides high quality for a lower price tag, thus making it the best fiberglass CB antenna.

5. K40 SF-300 Black 3′ 1000W Superflex Tunable Fiberglass CB Whip Antenna

cb radio antennas

The K40 SF-300 is a fiberglass CB antenna that is unmatched in its quality and clarity. It is considered as one of the best high-end antennas due to its superior performance and outstanding features.

It covers a frequency range of 26MHz to 30MHz. The construction of this antenna is made in a 1/4 wavelength design with a chrome-plated whip adapter, which is why it is fully compatible with all types of 3/8” x 24 threaded mounts.

Moreover, it can either serve as a single antenna or can also be co-phased with others as a part of a system of antennas.

Also, the antenna has a small metal shaft that can be lengthened or shortened by a supplied Allen hex wrench to tune the antenna. We noticed that playing with the shaft can improve reception in some cases.


  • 180° whip action capability
  • Tunable design and top-loaded coil
  • Ideal for CB and 10-meter radios


  • The whip is not entirely flexible, but semi-flexible

The K40 SF-300 Black 3′ 1000W Superflex Tunable Fiberglass CB Whip Antenna is a surprisingly good performer compared to its small size. It requires little to no tuning, which makes it a perfect choice to be among the best fiberglass CB antennas.

Best Fiberglass CB Antenna: Conclusion

These were some of the best fiberglass CB antennas, however, not all might be right for you.

Pick an antenna that is flexible, has a tunable tip, and offers durability and resilience.

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