The good thing about a MURS Radio or intercom base station is that it allows you to extend range by using an external antenna. Both the handheld units and the base station units have what’s called a BNC connector that enables you to twist off the antenna that comes with the radio and then twist on a new antenna connected to a cable.
You will get noticeably better results and more range with your MURS radio with an external antenna. It is the single most important factor in increasing transmitting and receiving range of a radio. You’ll need to make sure you choose an antenna that is specifically designed for the MURS frequencies and then choose the best location possible to install it.
The FCC limits antenna height for MURS radios to 20 feet above a structure (exclusive of the tower, mast or pole on which it is mounted), or 60 feet above ground (whichever is greater). The higher you place your antenna, the greater range you will get. If you mount an antenna on your vehicle and connect it to your mobile MURS two-way radio, the higher you place the antenna on your vehicle, the greater range you’ll get.
If you are using a handheld MURS radio and walking around with it, you can’t very well use an external antenna. You may be able to extend range by installing a better antenna than the one that came with the radio, but keep in mind that the antenna that came with the radio is “tuned” specifically for that radio. If you put on an antenna that isn’t properly tuned, you could lower range.
IntercomsOnline.com does not offer external antennas, find them by clicking on this link: external MURS antenna. You’ll find antennas you can mount on your car, building, or even inside antennas that will increase the range of your MURS Radio.
Filed under Intercom Applications, Two-Way Radio Applications by timbrux
July 3, 2008
MURS Radios
A MURS Radio uses 150 MHz frequency which is a Citizens Band radio spectrum that is called the MURS service. MURS stands for Multi-Use Radio Service. This is a newly created service for use in the United States and Canada. It is a low power, short range service in the VHF (Very High Frequency) 150 MHz Citizens Band radio spectrum.
The FCC does not require users of products for these bands to be licensed, but it does impose strict regulations on the types of products and services that may be supplied to consumers.
Previously the FCC came out with the Family Radio Service (FRS) in the 462 and 467 MHz spectrum in which you can find handheld units, but no intercom systems based on this service. MURS radios are similar to FRS radios but they have a power increase of four times that of FRS radio. And unlike FRS, you can add a larger or external antenna to improve range. If you want to put an antenna on top of your house, you can do it with MURS. Some antenna manufacturers claim an external antenna can increase the effective radiated power of a transmitter by a factor of 4.
These MURS Radios can transmit up to four miles, and perhaps more with an external antenna. These units are not secure, but there are fewer systems in use and few devices outside of a scanner to intercept this frequency. The IntercomsOnline.com MURS Multi-Mile Intercom uses the MURS frequency.
Below is a picture of a MURS Radio base station that you can use to communicate with MURS handheld two-way radios. IntercomsOnline.com are MURS Radio dealers for this and other products.

Filed under Intercom Applications, Two-Way Radio Applications by timbrux
June 18, 2008
MURS Radio
A MURS radio operates in the 150MHz frequency. You can now buy intercoms that will communicate with two-way radios that operate in the MURS frequency. At IntercomsOnline.com we carry MURS two-way radios, intercoms, outdoor callboxes, and even wireless public address (PA) systems.
Our customers are using these MURS devices together in lots of interesting ways. One is that you can set up a PA horn in areas of your business and set it so it is on a separate channel from your radios. If you want to page someone you just change to that channel on your intercom or radio.
The outdoor call box can be used at outside locations so people can call you when you are on your MURS radio.
You can find these MURS devices on the Commercial Intercoms section of www.IntercomsOnline.com.
Filed under Intercom Applications, Two-Way Radio Applications by timbrux
