What is Companding?

Cutting Through the Static: How to use Companding on your Two Way Radio

You're coordinating a bustling restaurant kitchen, headset buzzing with orders. Suddenly, the crackle of static drowns out the chef's instructions, throwing the entire operation into confusion. Frustration mounts, precious minutes tick by, and the smooth flow of service grinds to a halt. This is where companding, the unsung audio hero of two-way radios, steps in to save the day.

But what exactly is companding? Simply put, it's a form of voice compression and decompression that enhances the signal-to-noise ratio, resulting in crystal-clear audio even in challenging environments.

The Science Behind the Crackle

During transmission, companding shrinks the "loud" parts of your voice and expands the "quiet" parts. This optimized signal travels through the air more efficiently, minimizing the impact of background noise like static and engine hum. At the receiving end, the process is reversed, restoring your voice to its natural fullness.

Real Examples

Now, let's take companding out of the lab and into the real world of business....

Construction sites

Imagine construction crews coordinating heavy machinery movements on a noisy site. Companding ensures clear instructions and warnings, preventing costly mistakes and accidents.


Picture a bustling hotel with staff spread across floors. Companding allows seamless communication between housekeeping, front desk, and security, ensuring guests receive prompt and efficient service.


Envision a factory floor filled with the whir of machines. Companding cuts through the noise, enabling clear communication between production teams, supervisors, and maintenance personnel, maximizing uptime and efficiency.


Imagine security guards patrolling a vast outdoor event venue. Companding ensures crisp communication, allowing them to swiftly respond to emergencies and maintain order.

Beyond the Buzz

Companding isn't just about eliminating static. It also:

Improves battery life

By transmitting a smaller signal, radios use less power, extending battery life for longer shifts.

Enhances privacy

The compressed signal is harder to intercept, offering an extra layer of security for sensitive communications.

Increases range: In certain situations, companding can slightly extend the communication range of your radios.

Using Companding on Your Radios

In order to use the companding feature successfully amongst your radios - all of the radios must support companding and have it enabled.

Is Companding Right for You?

Whether you're coordinating a construction crew, managing a hotel, or ensuring safety at an event, companding can be a game-changer. If your business operates in noisy environments or relies on clear, uninterrupted communication, consider investing in radios with this valuable feature. Remember, clear communication is the cornerstone of efficient operations, and companding can help you achieve just that.

So, ditch the static and embrace the power of clear communication with companding. Your business will thank you for it!