Two-Way Radio Buying Guide | Choose the Right Radio | Vitexacom

Choosing a two-way radio is not simply a matter of picking a brand or the highest wattage. The right equipment depends on where your team works, how many people need to communicate, the coverage required and whether your radios must connect to an existing system. This guide explains the decisions that matter before you buy.

Start with the job, not the radio model

Write down who needs to speak to whom, where they work and what happens if a message is missed. A security team patrolling one property has different needs from a transport company with vehicles travelling between towns. A farm may need communication across open land, valleys, pack sheds and workshops. The operating environment should determine the system design.

Handheld, mobile or base radio?

Handheld radios are carried by staff and suit people who move around a site. Mobile radios are installed in vehicles and normally use an external antenna, which can provide a different coverage profile from a handheld. Base radios are fixed at a control room, office or dispatch point and can use a suitable external antenna and power supply. Some operations need a combination of all three.

VHF or UHF?

VHF occupies the 30–300 MHz range; UHF occupies the 300 MHz–3 GHz range. In professional land-mobile radio systems, the actual operating frequencies are assigned within the relevant national spectrum plan and licence conditions. As a broad planning guide, VHF is often considered for open outdoor environments and UHF is often considered for built-up sites and indoor use. This is not a rule that predicts coverage: terrain, building construction, antenna position, interference and the actual frequency matter more than a simple VHF-versus-UHF label.

Do not choose a band based only on what another business uses. The correct band and frequency must be suitable for the site and authorised for the intended operation in South Africa.

Analogue or digital?

Analogue radios are straightforward and can be a sensible choice for basic voice communication. Digital radios can offer features such as individual calls, group calls, text or data functions, and more efficient use of a channel in systems designed for them. The benefits depend on the digital standard and model. A radio advertised as digital is not automatically compatible with every other digital radio.

What is DMR?

DMR (Digital Mobile Radio) is an ETSI standard. Professional DMR Tier II systems use two-slot TDMA in a 12.5 kHz channel, allowing two logical time slots on the same RF carrier when the system is designed and configured for it. Radios still need compatible programming such as frequency, colour code, time slot and talk group. DMR Tier I, Tier II and Tier III describe different system types; they are not interchangeable labels for the same capability.

Will radios from different brands work together?

They may, but the model and programming must be checked. Analogue radios generally need matching frequencies, channel spacing and any CTCSS/DCS signalling. Digital radios also need compatible standards and matching digital settings. Proprietary features, encryption and accessory connectors may not work across brands. Never assume that the same channel number means the same frequency.

How many channels do we need?

Think about the teams that need separate conversations: for example, security, operations, maintenance and dispatch. Separate channels or talk groups can reduce unnecessary traffic, but users who need to coordinate across departments must still be able to reach one another. More channels do not automatically mean more simultaneous conversations; the system architecture and available spectrum determine capacity.

What about range?

There is no reliable universal range figure for a handheld radio. Buildings, hills, valleys, trees, antenna height, vehicle bodies, power, receiver performance and interference all affect the result. If coverage across a large site or multiple buildings is important, consider a site assessment and coverage test before buying. A repeater may help, but only if it can be positioned and configured to solve the actual coverage problem.

Questions to answer before requesting a quote

• How many users need radios now, and how many may be added later?
• Where will they operate: indoors, outdoors, vehicles, remote routes or several sites?
• What areas must be covered, including difficult spots?
• Do you already own radios? Record their exact model numbers and programmed system details.
• Do you need individual calls, group calls, GPS, dispatch, recording, emergency alerts or patrol functions?
• How long must the battery last for a normal shift?
• Do you need vehicle installation, repeaters, antennas or a control-room base?
• What frequency licence or exemption applies to the proposed system?

For a straightforward requirement, this information can help narrow down the equipment. For a larger or safety-critical system, a coverage and compliance assessment may be necessary before specifying the radios.

Explore equipment: Analogue radios · Analogue and digital radios · Push-to-talk radios.