One of the most common questions we hear at Safelight Communications Ltd is:
“How far will this radio reach?”

The short answer: it depends. The long answer? It depends on several key factors like terrain, equipment, power, and even the weather. Here’s what you need to know.

🔑 Key Factors That Affect Radio Range

1. Line of Sight (LoS)

Two-way radios typically operate on line-of-sight frequencies. This means anything blocking the path between two radios—hills, walls, or buildings—can reduce range.

• In open, flat terrain, handheld radios may reach up to 6 miles
• In urban or wooded areas, the range can drop to 1–2 miles
• With base stations and repeaters, the range can extend up to 30+ miles

2. Antenna Height

The higher the antenna, the further the signal can travel. That’s why mobile radios installed in vehicles or base stations on rooftops perform better than handheld units.

3. Frequency Band (UHF vs. VHF)

• VHF (Very High Frequency) is great for outdoor, open environments.
• UHF (Ultra High Frequency) penetrates buildings and obstructions better, making it ideal for indoor or city use.

4. Wattage & Power

Higher wattage = stronger signal.
Most handhelds operate between 1–5 watts, while mobile radios can run up to 100 watts. Just remember—more power drains the battery faster.

5. Interference

Crowded frequency channels, Wi-Fi networks, or even nearby electronic devices can interfere with your signal. Choosing a digital radio helps avoid static and signal overlap.

🎯 Real-World Example

Scenario: Two people using 5W handheld radios, standing in an open field.
Expected range: Up to 5–6 miles

Scenario: Same radios used in a dense office building
Expected range: Likely less than 1 mile

💡 How to Improve Your Range

• Use a whip antenna instead of a stubby one
• Get above ground—higher elevation = better signal
• Add a repeater to boost signal across long distances
• Choose the right frequency band for your environment

🔧 Need Reliable Coverage?

At Safelight Communications Ltd, we help businesses build communication systems that match their terrain and team needs. Whether you’re managing a city-wide event or securing a construction site, we’ll make sure your signal goes the distance.

📞 Reach out today for a custom radio range assessment or quote!