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As a construction site project manager, ensuring workers can quickly access assistance during emergencies or contact you for questions about building designs or plans is crucial. Efficient communication accelerates project progress and enhances overall site safety.

wireless construction site intercom
wireless callbox and base intercom
One effective way to achieve this is by installing emergency outdoor wireless intercoms at strategic areas around the construction site. There are two main technologies for these intercoms: standard two-way radio technology and cellular network technology. The former allows calls to two-way radios, while the latter can connect directly to your cell phone or landline. These intercoms are housed in vandal- and weather-proof casings and feature a button that workers can press to call for assistance.

Installation and Mobility

These intercoms can be mounted using low-cost poles available at any building supply store, such as The Home Depot. This makes them easily movable between job sites. For a temporary setup, mount them on a standard eight-foot galvanized, 2 3/8-inch fence pole with a decorative end cap on top. If there is no nearby power source, a solar power system can be installed at the top of the pole.

Mounting the intercoms at an eight-foot height allows the antenna and solar panel to be out of reach, while still providing a way to secure the pole to the ground. One method is to use a two-inch piece of electrical conduit that the fence pole can slide over, then bolt the fence pole to the conduit after setting the conduit in concrete. This approach allows for quick relocation of the equipment to another construction site without needing to remount it on a new pole. When the project is complete, the conduit can be dug up and discarded, saving the fence pole and equipment for future use.

Two-Way Radio Options

If you have existing licensed two-way radios, you can find intercom models compatible with them. However, using licensed radios can be challenging if you frequently move between different locales, as obtaining a license requires a 'frequency coordinator' to ensure your radios do not interfere with existing license holders. This can be nearly impossible for mobile operations.

To solve this problem, consider using unlicensed MURS (Multi-Use Radio Service) business-class two-way radios. The MURS service operates on five frequencies in the 150 MHz VHF (Very High Frequency) radio spectrum and does not require an FCC license. MURS radios provide a short-range service (up to several miles) ideal for construction sites.

Cellular Network Intercoms

Alternatively, you can opt for construction intercoms that call your cell phone. These cell network intercoms work with AT&T or T-Mobile networks and can dial out to any three phone numbers you choose. When someone presses the button, you can talk to them on your phone, eliminating the need for workers to use their private cell phones or physically find you. Additionally, these units have a relay that can be activated remotely to unlock doors or gates, activate sirens, or perform other switch-activated functions.

Conclusion

Either solution—two-way radio or cellular network—enhances productivity and safety on the job site. Effective communication is key to successful construction project management. The MURS Wireless Intercom System, comprising handheld radios, base station intercoms, wireless callboxes, and other wireless devices, offers an excellent solution for construction sites requiring greater range and additional communication options. With its minimal interference and long-range capabilities, MURS ensures reliable communication across the site.

Implementing these wireless intercoms provides an additional layer of communication, ensuring your building project progresses smoothly and successfully.