VHF Communication Systems

Small and large companies have used VHF  two-way radio systems whenever they need to communicate with people on the move. Two-way communication enables work groups to talk directly to an individual person or group - conveying critical operational information.

Conventional

Today, thousands of conventional radio systems are in operation worldwide. Conventional systems have been, and continue to be, the most popular type of two-way radio system in existence. Conventional systems range from analogue, voice-only communications over a confined area (single-site), to state and country-wide (wide-area) integrated voice and data networks with digital signaling, voting, multicast and simulcast broadcasting.

Today's conventional systems offer many capabilities beyond basic talk and listen. For example, with enhanced signalling a user's personnel identification number (I.D.) can digitally accompany each voice transmission, eliminating the need for the caller to verbally identify him/ herself. With the press of a button, a silent emergency message to the dispatcher can be sent with the user's I.D. indicating that help is needed. A radio check can be sent over-the-air to verify and report if a radio is operational or within range radios can even be disabled over-the-air should a radio be lost or stolen.

Conventional systems offer other benefits. First, they are economical, especially when channel congestion and channel management are of lesser concern. Secondly, conventional systems can be easily upgraded. Many users start with simple systems and with  software upgrades, migrate to feature laden radio systems. Lastly, conventional system coverage can be easily expanded by simply adding more sites.

Conventional users can also point to a number of other enhancements:

Increased spectrum efficiency - via narrow band technology

Compliance to APCO Project 25 standards

Digital encryption - for user privacy