Communicating during emergency operations is a constant challenge for those in the fire service. Nowhere does that become more evident than during a wildland urban interface (WUI) incident. Structural firefighters who find themselves participating in these incidents for either the first time or very infrequently will likely find the communications environment challenging (for example quite different from what they are used to.) The good news is there are some basic concepts, terminologies and hardware that can be utilized, thus allowing communications in the WUI to become more effective.

The following topics will be discussed in this article

• Frequency bands
• Hardware
• Frequency use
• Topography and distance

Frequency Bands

When multiple agencies come together for an incident, regardless of the nature, one challenge is ensuring that everyone is operating on the same frequency band. On a typical structure fire, the agency with jurisdictional authority typically makes this decision. With the WUI and the associated topographical obstacles often found in that environment, the VHF frequency band is generally considered the best choice. VHF frequencies are a wider radio wave which offers an advantage when traveling over and around topographical features. It is for this reason that most federal and state agencies, chose to remain on this frequency band.

According to Mark Hall with First Responder Communications, many changes are on the horizon, but VHF is likely to be around for some time. One recent change in VHF is the narrow banding of frequencies which creates more channels. Be aware, however, that older radios need to be upgraded or reprogrammed to be able to utilize these frequencies. Narrow banding, along with the advent of digital VHF radios, are some of the ways that technicians can increase the effectiveness and efficiency of this popular radio band. If your agency is apt to respond to fires in the wildland environment and those responses are often on state or federal lands, you will be well served to invest in radios with VHF capabilities.

Hardware

Since we still have our "tech" hats on, let's dive a little deeper into this discussion of VHF and which hardware will serve you best. Portable radios come in every style and configuration imaginable, with the Bendix King (BK) still the most commonly found radio on wildland incidents. According to Hall, the newer models have a vast amount of untapped technology held within which will allow them to work with future system upgrades.