How to Choose CB Antenna

While many beginners assume that the model of CB radio is the critical part of their CB setup, the truth is that a high-performance CB antenna has a huge impact on the quality of your CB’s transmit and receive range. Since FCC regulations limit all CB radios to 4 watts of power, the antenna is the way to  performance. A poorly performing CB antenna reduces the radio’s transmission range and quality, while a high-quality CB antenna kit can extend the signal’s reach.

Let’s take a look at the different types of CB radio antennas that are popular for pickup trucks, semi-trucks, and CB base stations – and learn some tips to help you choose the CB antenna for your needs.

Types of CB Antennas

The type of antenna that’s ideal for your CB radio setup depends on the type of radio you have, how you plan to use it, and your location. Available options include fiberglass antennas, stainless steel CB antennas, magnetic mount antennas, whip antennas, mirror mount antennas, ground plane, magnetic base, and dual antennas. Since even the CB radio won’t perform well without a good antenna, let’s look at the common types of antennae for CB base stations and mobile CB use.

CB Base Station Antennas

CB base station antennas are designed for use at base stations which are stationary locations. Because of this, they can be larger, ranging from 3 to 18 feet in height. With proper SWR tuning, a CB base antenna may be able to communicate as far as 30 miles. However, it is important to check local regulations, as an 18-foot antenna may not be suitable for communities with strict HOA rules. It is worth noting that a CB base antenna can be used with any CB radio; operators can even convert a mobile radio to function as a base station by connecting it to a 12-volt power source.

Unlike mobile antennas, base station antennas do not require a large metallic ground plane, so there is more flexibility in where and how they are installed. Safety is paramount so it is important to avoid installation near power lines or hazardous tree limbs.

Mobile CB Antennas

Mobile CB antennas can be used “on the go” in cars, pickup trucks, semi-trucks, boats, ATVs, or RVs. They are smaller and shorter than base station antennas and have various mount kit options for different vehicles.

Because the antenna length is ¼ wavelength (which calculates to 102”), mobile antennas have a coil section that increases the overall length of the antenna wire while keeping the height low enough for vehicle use. The location of the coil in the antenna is called the “load position.” When deciding on the load position for your antenna, it’s important to know that the coil and two-thirds of the antenna must extend above the roof line of your vehicle.

Consider your specific vehicle, where you will mount the antenna, and whether you need a directional or omnidirectional antenna. You can choose from several types of antennas including top load antennas, whip antennas, magnetic mount antennas, and center load antennas. Remember – every CB antenna mount must be properly grounded for the antenna to function correctly.

Top Loaded CB Antennas

A top-loaded fiberglass CB antenna has its coil at the very top and offers the efficient design in terms of the ratio of the power delivered to the antenna relative to the power radiated from the antenna. Fiberglass construction is used to support the top loaded coil. These antennas can be used for vehicles or in stationary settings. With the coil located higher on the antenna, it can be placed in several different mounting positions and still clear the body of the vehicle. However, it is top heavy which is harder to sustain in the wind. Top-loaded antennas have a lower watt capacity but because of their efficiency can easily handle the standard four-watt limit of CB radios.

Center Loaded Antennas

Center loaded antennas feature a coil placed in the center of the antenna. The mount has a lower shaft that’s covered in fiberglass, followed by the coil, and then the stainless steel whip. The design of the center load antenna results in antenna efficiency. These are often referred to as “trucker antennas” because their ability to deliver premium signal strength makes them a favorite of truck drivers.

Base Loaded Antennas

Base loaded antennas are so named because the coil is in the base of the antenna. These antennas often have a heavier coil with a higher power handling capability than a center loaded or top loaded antenna. This design is often found in magnet mount antennas.

Mirror Mount Antenna

Mirror mount antennas are exactly what the name implies: they are mounted on the mirror arm of your vehicle instead of the roof. They’re durable and versatile and let you move the antenna to a different vehicle without drilling any holes. You can even convert them for use as a temporary base station antenna by attaching them to a ladder or pole. Mirror mount hardware is sold separately so you can choose the antenna for your situation.

Whip CB Antenna

A whip CB antenna is long and thin, usually 3 to 8 feet in length; it’s made of stainless steel or aluminum and may be either base or center loaded with a coil to improve performance. Whip antennas are versatile and can be easily mounted either on the vehicle’s roof or fender; they can also be used with base station receivers if they’re installed on a tall mast. The long steel whip can be tied down when not in use to protect the antenna from damage.

Magnet Mount CB Antenna

A magnet mount CB antenna can be quickly attached to the roof of a vehicle because its heavy-duty magnet base holds the antenna securely in place. Because you don’t have to drill any holes to mount them, magnet mount antennas are easy to install and remove and can be repositioned as needed.

Telescoping CB Antenna

A telescoping CB antenna is commonly used with handheld CB radios (such as the Uniden walkie-talkie type) and other portable CB radios. These stainless steel antennas have telescoping sections that extend when needed and fold up short when not in use. A telescoping antenna is also a low-profile option for vehicle use.

Whip antennas are the standard for CB radios, and for good reason. They are relatively inexpensive, easy to install and give you great performance. If you want the possible antenna for your CB radio, then you should definitely buy a whip antenna.

Trucker antennas are also a good option for CB radios, and they offer some advantages over whip antennas. First, they are more durable and can withstand more abuse. Second, they offer better performance thanks to their longer length. However, they are more expensive and can be more difficult to install.

Magnet mount antennas are another great option for CB radios. They are very easy to install, and they offer great performance thanks to their magnet-based mounting system. However, they can be more expensive than other types of antennas.

Magnet Mount Antennas

Magnetic mount, or magnet mount, antennas are easy to install and provide performance. These antennas require no ground plane and can be used with any coaxial cable. Whip antennas are the popular type of CB antenna, but magnetic antennas are becoming more popular because they are easier to install and require no special grounding.

Understanding Antenna Coils

Understanding antenna coils is important for anyone using a CB radio. The antenna coil is what helps the CB radio to receive and transmit frequencies. The mount is what connects the antenna coil to the CB radio. There are different types of mounts, depending on the model of the CB radio. The frequencies that a CB radio uses are in the range of 26-28 MHz. There are different types of CB antennas, depending on the type of mount that is being used.

Antenna install

CB radio systems are allowed to transmit in a frequency range between 26 MHz and 27 MHz on forty CB channels specified by the FCC (some models also include UHF and ham radio frequencies). The power allowed for a CB radio is four watts, so the antenna is really important for the range and the quality of your reception. As you’re evaluating the CB antennas on the market, consider these important criteria.

Mounting Location on Your Vehicle

Your vehicle’s roof, bumper, trunk, hood channel, or mirror bars are all good places to mount a CB antenna. Your choice will depend on your type of vehicle, model of radio, and preferred antenna. For performance, the antenna should be mounted on the point possible, and the coil must be fixed above the roofline. Every antenna must also be fully grounded with a connector to the chassis of your vehicle. For vehicles that do not have a metal roof panel or offer enough space for grounding, no ground plane (NGP) antennas are the option.

Antenna Mount Size

Mount size is another essential factor to consider. Your antenna mount is what determines how well your CB antenna attaches to your vehicle. Extra-long or heavy-duty antennas need a mount that can offer strong support to the antenna whip.

If you don’t want to drill a hole or permanently attach an antenna to your vehicle, a magnetic mount is an choice.

CB Antenna Length

Does the length of a CB antenna matter? Yes, it does. Longer antennas typically perform so it’s smart to install the longest antenna that your vehicle can accommodate. Choose a CB antenna kit with a mount that will support the length of your antenna and the right antenna configuration for your vehicle’s body style.

Antenna Tuning Design

Even the CB antennas still need to be tuned to achieve performance. Antenna tuning capabilities include tunable tips and set screws. As you’re comparing antennas, consider how the model is tuned and the level of skill required. The Standing Wave Ratio or SWR reading needs to be under 1.5 to efficiently transmit and receive the CB signal. For more information, check out our guide on how to tune your CB radio.

Antenna Coil Placement

CB antennas vary in performance based on the location of the coil on the antenna itself. Remember that the coil is used to achieve the right ratio between the total antenna length and wavelength. Since it’s often necessary to shorten the height of the antenna, pay attention to where the coil is placed. The popular type is center loaded for its combination of performance and durability.

Antenna Materials

Materials matter when it comes to signal transmission and durability. Look for CB antennas made of high-quality materials such as stainless steel and fiberglass with durable coatings that can withstand harsh weather conditions. Stryker antennas use a coil wound with 6 gauge solid copper wire that is plated in pure silver which makes the coil highly conductive.

Coax Cables

Think of coax as the middleman – it connects the CB with the antenna, so make sure that your antenna is connected to your CB with a high-quality coaxial cable. Since it’s part of the antenna system, a good cable will help the range of your CB radio unit.

Dual Antenna Options

A dual antenna CB system uses two antennas instead of one to improve the signal strength and range of the CB radio. These systems are often used in mobile CB applications, particularly on large vehicles, to reduce signal fading. They require special installation and setup work to operate effectively.

All You Need to Know About the Difference Between VHF vs UHF

Understanding the difference between two-way radio VHF (very high frequency) vs UHF (ultra-high frequency) will help you determine which one is right for you. Every wireless communication, like two-way radios and cell phones.

To help get a better understanding of UHF and VHF, below are some answers to some frequently asked questions.

· Which is better? UHF or VHF

· What does UHF and VHF mean?

· UHF vs VHF Frequency Band Chart

· Who uses UHF and VHF?

· How can I improve my signal strength on my VHF or UHF two-way radio?

· What is the difference between UHF and VHF? Similarities?

· Is my two-way radio compatible with existing radio systems?

Which is Better VHF or UHF?

Choosing between a VHF frequency or UHF frequency depends on what you are going to use them for. VHF is ly for outdoor use where you are free from obstructions. The frequencies of VHF travel further if they are not disrupted by barriers. The only time you will want to use VHF is if you are outside in a wide-open space like a field. VHF has smaller frequencies which means interference with other radios is common.

UHF, on the other hand, is an all-around better signal for long distance communication. UHF is better when using radios for indoor use like buildings or around cities. A plus to using UHF is you are less likely to be interfered by other two-way radios. The reason why UHF is better for inside use opposed to VHF is, UHF signal does a better job at reaching through wood, steel and concrete, therefore, can reach further into the building.

What Does UHF and VHF Mean?

UHF stands for “Ultra High Frequency” while VHF stands for “Very High Frequency.” UHF can range from low band (378-512 MHz) to high band (764-870 MHz) while VHF ranges from low band (49-108 MHz) to high band (169-216 MHz). MHz stands for Megahertz and measures the speed of electronic devices.

UHF vs VHF Frequency Range Band Chart

Who Uses UHF and VHF?

UHF is typically used by public safety officials like fire, police, and EMS with tv channels of 77-80. UHF is used for common purposes like phones, televisions, and ham radio operators. Casinos, security officials, warehouses, construction, manufacturing, and health care also use UHF radios to communicate to others across the building and through departments. A public safety official uses MHz frequencies between 849 and 869 and a 13 cm ham radio band has an MHz of 2300 to 1310.

VHF is commonly used for communication on boats and marine personnel (Woodward). It’s a very important accessory to have on board because you can contact nearby boaters if certain emergencies arise. Channel 16 is used when needing to make an emergency call and certain protocol should be followed. Agencies like TSA and CAL FIRE (California Department of Forestry and Fire Protection) use VHF for their two-way radio communications.

How Can I Improve my Signal Strength on my VHF or UHF Two-Way Radio?

One way to improve the range on a two-way radio is by improving the antenna. The length of your antenna determines the length of the radio waves. The wavelengths of UHF (ultra-high frequency) are short so antennas for UHF two-way radios are typically small and stubby in size (Personal Radio Services). VHF requires a slightly larger antenna to improve its range and how far it will travel. VHF antennas can receive channels 2 through 13 while UHF antennas can receive channels 14 through 83 (Very High Frequency).

Since VHF often gets interfered with other frequencies, the ways to ensure you don’t get interrupted is to locate where the interference is coming from. On a boat, there are a lot of places the noise can come from. Listen to the receiver and note any changes in noise level.

Another way to help with interruptions is bonding. This ensures that the notice goes away to the ground instead of radiated. All motors and such should be constructed in the ground.

An issue that can occur with signals is frequency overlapping. This means that if two radios are using the same frequency then the radio waves interrupt each other, and the transmissions overlap. This will likely happen when they are in the range of each other or are in the same coverage area.

You won’t have any issues with a single transmitter but if you want to cover a large area with multiple transmitters that’s when it becomes difficult because you don’t want them to interrupt each other.

What is the Difference Between UHF and VHF?

The main difference between UHF and VHF is range. UHF radio waves are smaller than VHF. This means that UHF frequencies have smaller waves that produce a wider reception. While VHF has longer wave lengths. UHF are more likely to pass barriers like rocks and trees easier.

VHF range is reduced due to signal degradation with barriers such as trees or hills. Together they both reach a good distance.

Another difference between UHF and VHF is their battery life. UHF uses a lot of its battery due to the higher frequency. The last difference between the two radios is that UHF does come at a higher cost than VHF.

Is my Two-Way Radio Compatible with Existing Radio Systems?

· Stay within the same frequency band

· Make sure the current systems are correct (Digital vs Analog)

In order to ensure your radio is compatible with existing radio systems make sure you are staying within the same frequency band. If you are using a UHF radio now, your new radio needs to have a UHF operating mode if you want them to communicate.

Another way to ensure your radios are compatible is make sure the current systems are correct. The newer models should be digital, but other models may still be using analog.

Lastly, you need to keep in mind that if your radios meet the certain requirements mentioned above, they still may not be compatible. If you are unsure at any time that your two radios are compatible give our partners at First Source Wireless a call and they would be happy to assist in selecting the correct two-way radio. 

Very High Frequency (VHF)/Ultra High Frequency (UHF)

… Very High Frequency (VHF) and Ultra High Frequency (UHF) radios are by far the ly commonly used radio type by governments, military, police, maritime organisations, emergency responders and other entities that operate in environments when regular communications networks may be inconsistent or not properly functioning. VHF radio waves occupy band between 30 to 300 megahertz (MHz), while UHF radio waves occupy the range between 300 MHz and 3 gigahertz (GHz). VHF/UHF radio waves are propagated by a line of sight path; they will not reach around the curvature of the earth and they can be blocked by hills, mountains and other large dense …

High Frequency (HF) Radio

… agencies – HF is al always limited to vehicles and stationary buildings. Vehicle HF Radios HF communication has become the default for vehicle communication for many large humanitarian agencies. Due to the  fact HF signals can reach far beyond VHF/UHF, and given the size of the equipment, HF is an compliment to other forms of communication and a vital for vehicle security. The vehicle mounted HF transceivers are very similar to other vehicle mounted radio units – HF radios are installed …

Wireless Communications

… propagation does not mean that both the transmitter and receiver need to be able to physically see each other – such as a satellite in orbit of the earth – nor does it mean that there has to be completely open space between two objects – such as a VHF radio working inside a structure with radio-transparent walls. Line of sight propagation is important because, hills, large structures, and even the curvature of the earth will limit how far a line of sight signal can go.  VHF/UHF and microwave radio communications devices are limited by this method of propagation. Groundwave Propagation  – Radio waves can be propagated using what is called groundwave or “surface waves”. Groundwave propagation involves radio waves moving along the surface of the earth and bouncing off solid structures such as hills or buildings. VHF and UHF communications might benefit from groundwave propagation a little, but generally only higher frequency signals benefit from groundwave propagation. Skywave Propagation  – HF radio waves in the earth’s atmosphere propagate using skywave or “skip” …

Radio Communications

… a signal coming from one mobile radio unit, and amplifying it/rebroadcasting it so that it can reach a much further distance. Occasionally, specialised radio base stations are designed to accommodate multiple types of radio configurations at once, HF/VHF/UHF and others. These types of multi modal communications base units are highly specialised and typically used by agencies with professional radio and communications experts. Example of a Base Station   Repeaters/Repeater Networks Radio Repeaters are …