All our guides: your field expertise in radio communication
Explore our practical and technical guides for designing, deploying, and optimizing your radio communication networks. From selecting professional equipment to ensuring regulatory compliance in ATEX zones, leverage TRPS expertise to inform your decisions. Access detailed comparisons, lone worker safety (PTI-DATI) advice, and expert recommendations to help you adopt the technology best suited to your operational requirements.
Contact us
What is the difference between a licensed and a license-free walkie-talkie?
A license-free walkie-talkie (PMR446) uses free public frequencies, but its power is capped at 0.5W, which limits its range and privacy. Conversely, professional licensed equipment benefits from a secure, dedicated frequency, power up to 5W (or more via repeaters), and advanced features for demanding use cases.
What is the maximum range of a walkie-talkie?
The maximum range of a walkie-talkie varies significantly depending on the technology used: limited to 1 or 2 km in real-world conditions for a license-free PMR446 model, it reaches 5 to 10 km for a professional DMR (UHF/VHF) radio. To go further, adding a radio repeater doubles the coverage area, while WAVE PTX 4G/5G LTE solutions offer completely unlimited range.
What is the difference between UHF and VHF?
The main difference between UHF and VHF lies in the wavelength and the ability to penetrate obstacles. UHF (400-470 MHz) has short waves that are ideal for penetrating reinforced concrete and metal indoors. VHF (136-174 MHz) offers longer waves that travel greater distances in open outdoor areas.
How to use a walkie-talkie?
To communicate effectively, press the PTT (Push-To-Talk) button, wait one second before speaking, and hold the device 5–10 cm from your mouth. In professional settings, using short sentences, procedural words (e.g., "Over," "Copy"), and the NATO phonetic alphabet ensures clear, precise, and secure transmissions.