One of the problems with a wired PA (public address) system is that people who are mobile have no way to access it. With a wireless PA system interface device now people on two way radios or wireless intercom base stations can make pages over a wired public address system.

The Two Way Radio Wireless PA Interface receives transmissions from two way radios and then broadcasts those transmissions over a wired PA system. Now people can even be outside the building on a campus or property and still make announcements. This is an especially useful feature in emergency situations.

The Wireless PA Interface connects to the PA system either via RCA Phono Cables if it is located within six feet of the wireless PA system, or via the 600 ohm balanced MIC input on the PA system if it is further. A typical balanced cable contains two identical wires, which are twisted together and then wrapped with a third conductor (foil or braid) that acts as a shield.

The Wireless PA Interface will block out any signals that it receives that are not programmed with one of the selective signaling formats it uses. It can be paged with 2-way radios programmed for Quiet Call (CTCSS), Digital Quiet Call (DCS), 2-Tone Paging, or Selcall paging formats. Each format offers a unique method of paging the receiver and they ensure that not just anyone can use your PA system.

You’ll find this device at www.IntercomsOnline.com.

In addition to increasing productivity through better communication, two way radios and devices that use two way radio technology to increase workplace safety.

Many businesses rely on cell phones for emergency communication. In most cases this works well, but in cases of natural disasters or even a major snowstorm, the cell phone network can go down or get overloaded with calls. That can leave you without communication on your workplace property.

You can also get wireless public address (PA) speakers that work with your two way radios. These wireless PA systems receive transmissions from your two way radios at up to two miles away. You can use these to quickly get emergency messages out, or to just keep your employees informed.

Another two way radio safety device is the wireless call box. These call boxes are essentially a two way radio in a wall or post-mounted box. A user simply presses a button to make a call. You can place these in areas where an emergency could happen so someone can quickly report it. These wireless call boxes can also be placed at entry doors or on loading docks so visitors can contact you for entrance. You can also place these wireless call boxes in your employee parking lot to increase safety there. When your workers need assistance they are glad to know that a call box is nearby.

Keeping your employees safe in any way you can should be a top priority of yours. Using two way radio devices is one way to do that. With these devices you can get the added benefit of increased productivity. Look around your business and I’m sure you’ll find a way you can integrate two-way radios.

A Wireless PA System is used applications where it would simply be too costly or even impossible to run wires for a conventional PA system. A wireless PA system consists of a wireless receiver box connected to a horn PA speaker via a cable, and then some sort of wireless transmitting device, which could be a two-way radio or base-station intercom.

Someone who wants to make a page to the wireless PA system just has to set the transmitter to the same channel as the wireless PA and then press the push-to-talk button on the transmitter.

The system has a range of up to a couple of miles and the range can even be extended by adding an external antenna to either the Wireless PA, the transmitter, or both.

IntercomsOnline.com has the  MURS Wireless PA System that has several transmitter options.

When installing a wireless PA system, the single biggest expense is usually the wiring. Its not the cost of the wire, but rather the installation cost. As in the diagram below, there is often concrete or asphalt between locations where the public address system is to be installed. Trenching through that is both expensive and messy. The expense doesn’t stop once you get inside the building and you have to start running wires through walls too.

Going with a wireless PA system instead can save you money. The PA system consists of receiver unit with antenna that receives transmissions, amplifies them, and then sends them to an attached PA horn speaker. Up to two speakers can be attached to a single receiver. As shown in the diagram below, each zone can be set to different volume levels depending on the environment.

One benefit of a wireless PA system over a wired system is that you can use handheld two-way radios to make pages. So no matter where you are, you can page someone or make announcements. Even if you are up to two miles away!

One more benefit is that these units can also be programmed to receive transmissions from NOAA Weather Radio so employees will know instantly when bad weather is approaching.

A wireless PA system and intercoms and radios that communicate with it are available at http://www.intercomsonline.com.

A campsite needed a way to get notices out to all their campers, but they didn’t want to run wires to PA speakers all over the campground. The cost would have been prohibitive.

With the MURS Wireless PA System they didn’t have to since it receives its pages via a wireless signal. They can send pages using a base station intercom in the main office, or through portable two-way radios when they are roaming around the grounds.