Frequency in Two way radio

Which of the Two-way Radio Frequencies You Need?

Whether trapped in a lift, attempting to reach someone but not getting through, in basements or deep tunnels or anywhere else where cellular networks are poor, walkie-talkies are the most convenient method to communicate.

Two-way radios improve and assure staff safety by allowing members to communicate over a large area. However, they are a great lot of money because there are no call costs. Therefore, when looking for the best portable walkie-talkies, you must conduct extensive research.

When choosing the finest 2-way radio frequency for your company, the best option ultimately comes down to how you want to utilise your radios. Each frequency band has benefits for different purposes; for example, higher frequencies provide better in-building penetration but a shorter range.

There are three frequency bands for most basic applications: VHF, UHF, and 900 MHz. To assist you in making the best decision for your company, we’ve identified the benefits of each.


The Very-High Frequency (VHF) band has a greater wavelength but a limited range of 30 to 300 MHz. This is suited for usage outside, especially in an open setting or on level terrain. It is frequent on festival grounds and construction sites.

This radio frequency has good penetration and is ideal for short-distance communications. In addition, because the signal bounces on the ground, the earth’s curvature does not affect its performance.


  • VHF (Very High Frequency) 136-174 MHz Best Suited For Outdoor applications requiring maximum range with minimal to no impediments, such as rural two-way radio systems.
  • Rural fire departments, agriculture, long haul haulage, and field operations for energy firms are examples of typical industries.


Ultra-High Frequency (UHF) is a frequency that is higher than VHF. The broadcast frequency ranges from 300 MHz to 3 GHz. The frequency is greater because the wavelength is shorter.

It is capable of penetrating concrete, steel, and other barriers. This is a popular choice for two-way radio in anything from hotels to educational organisations. This style of radio is also appropriate for use indoors.

The shorter antenna distinguishes UHF radios from VHF radios. In addition, because it is more discrete, you can easily conceal it in your pocket.

Spectra Engineering MX800 Base Station & Repeater 

Vertex VX-4600 Mobile Two Way Radio

  • Indoor applications or situations with obstacles are best suited for this product, which is commonly utilised for city two-way radio systems.
  • Warehouses, industrial plants, hotels, and education are typical industries.
  • Other Features: When both inside and outdoor coverage is required, UHF is the default frequency. Because of its adaptability, UHF is the most often used frequency band; around 80% of corporate radios use UHF.

On-site 900 MHz

Organisations that require robust in-building coverage are best suited.K-12 education, hotels, retail, and light manufacturing are typical industries. The Motorola DTR650 is the only device that uses 900 MHz ISM Frequency-Hopping Digital Spread Spectrum technology. Onsite radios at 900 MHz are license-free technology that may be set up fast.

Choosing the Correct Frequency and Wavelength

Depending on your range needs, you may change the frequency to VHF or UHF. They both have benefits and drawbacks. Very High-Frequency bands are ideal for transmitting communications across vast distances. Furthermore, weather interferences and impediments may not always have a significant impact.

On the other hand, ultra-High Frequency (UHF) is far better suited for scenarios involving several devices near. Because UHF has a wider bandwidth, there is less interference.


Two-way radios are handy for quick communication, significantly when the cellular network has been disrupted. When you wish to go on an adventure and disconnect from society for a bit, you must have a two-way radio with you for safety reasons.

Unlike ordinary networks, a two-way radio device has a significantly greater range, so you will seldom be out of range. However, beginners may struggle to select the optimal frequency for their two-way radios.

I hope you have gained enough understanding of choosing the correct frequency band. So, the next time you use a two-way radio gadget, you’ll already know which to select and how to use it.