Thursday, October 14, 2010

MURS Radios: Wireless Frequencies

If you want to get a new MURS radios wireless intercom system for your home or office, make sure that it is compatible with the other wireless devices you own or even of those of your nearest neighbour. Also, think of the requirement you need like the range and features when you choose MURS radios for your business.

Wireless Intercom Frequencies

The United States have many MURS Radios with wireless frequencies for unlicensed use and these are: 49 MHz, 900MHz, 2.4GHz, 5.8GHz, and Family Radio Service (FRS) band. Now the FCC has a new one, the Multi-Use Radio Service (MURS). Canada has the same radio frequencies as US with the exception of the recent MURS.

The frequency used when the first wireless invention was launched was the 49MHz frequency spectrum. This spectrum was used by the cordless telephones back then and even now with inexpensive baby monitors and low-end wireless devices. It can cover short ranges only with plenty of interference. MURS radios that make use of this spectrum are obsolete and in case you find them, you will surely ignore them.

After the 49MHz, products that use 900MHz spectrum were introduced to the public. Both the 49MHz and 900MHz MURS radios units are not secured and your conversations are heard by those using the same frequency. But with the newer digital 900MHz spectrum products your conversations are safe for the digital transmission is divided across frequency ranges. Comparing the two units using 900MHz, the digital spread 900MHz products have greater range. Found on the market are two wireless intercoms the least although just one uses the digital spread spectrum. The products that use this spectrum can converse up to 1000 feet.

Then 2.4GHz units were introduced. Many cordless phones and other products nowadays are of this range. With video intercom systems as the major users of this range but the one wireless video intercom was lately put to an end. In addition, the WiFi wireless data networks (802.11B/G) use this spectrum that is why products using this range can communicate with one another. Check out MURS Radios for more details

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