Some Brief Information on Two way radios

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Developed during World War 2 for use in the military, walki talkies are now commonly used by millions of people in work and in homes all over the planet.
Originally quite large and cumbersome, just like so many other electrical devices, they have shrunk in size considerably over the years. In general, a walkie talkie will have a mouthpiece to talk in and a speaker to listen from they also can come with a compact earphone microphone for discreet conversations if need be.

Licensed and Unlicensed Walkie Talkies
Walkie talkies come in two basic types. One type is referred to as licensed, while the other type is referred to as unlicensed. A “licensed” set of walkie talkies will transmit conversations over a radio frequency that has been isolated and designated specifically for that particular set of walkie talkies.
This type of walkie talkie would be the type that you would see a pit crew at a car race communicating with their driver with.

Right Off an Electronics Store Shelf
Unlicensed Walkie Talkies would be the type of walkie talkie that you can buy off the shelf at any electronics store. While there is an extremely small chance of it, you can run into situations with unlicensed walkie talkies where unrelated walkie talkie users using completely different walkie talkies can over ride each other and cause a confusing situation.
This is precisely the reason why licensed 2 Way Radios are available for professionals who can’t afford the risk of these types of situations.

Always a Place for Walkie Talkies
The advent of the mobile phone took the place of the walkie talkie for a good many people over the years that the cell phone has been in use. However; there will always be situations and places where a set of walkie talkies can’t be replaced. For instance, hunters and outdoors men use them to communicate with each other in desolate areas where cell phone reception is unavailable.

Also, walkie talkies don’t have a time delay while a call goes through, which is a benefit in commercial situations.

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2 Way Radios for Construction

This was posted just a few days ago and I thought it was interesting

Two-way radios are widely in use on professional construction projects to help site management coordinate personnel and services in order to deliver projects safely, on-time and within budget.

However construction sites pose many challenges to two-way radio communications, including signal coverage, ground to crane communications and linking numerous trades, subcontractors and security staff in user groups to each other and central management within a network. There is also the requirement for reliable, clear and instant communication in extremely noisy, dusty environments, within buildings and in open space whatever the weather, and of course for communications devices to be easy to use, durable and rugged.

Kenwood has been supplying Icom radio systems to the construction industry for many years with equipment proven in use around the world.

Since the launch of Kenwood’s NEXEDGE® peer to peer and trunked digital two-way radios and walkie talkie solutions, an increasing number of customers in the construction industry have upgraded to the improved clarity, increased coverage, additional flexibility and enhanced security of NEXEDGE® digital two way radio technology.

Other benefits of NEXEDGE® include Kenwood’s Analogue/Digital Mixed Mode which, unlike some other brands, allows NEXEDGE® radios to communicate automatically (without manually switching the operating mode) with existing analogue radios whatever the make; so that you can replace your analogue radios over time in a straightforward and cost effective way.

As you would expect, all Kenwood professional series hand portable walkie talkies conform to MIL-STD-810 C/D/E/F/G for ruggedness and durability and are IP54/55 Water & Dust Intrusion rated, making them ideal in a dusty, muddy construction environment.