Friday, January 21, 2011

A Bit Of Background On Our Present Day Mikes

By Dan Smith


Audio mikes that used the cables for signal transmissions have long since been replaced with wireless mikes. Also called Radio mikes, they use radio frequency technology to transmit the audio signals. They are capable of sending signals through FM, AM, UHF, VHF and various digital formats.

Highly advanced mike sets are built with features that allow you to select the frequency with which you wish to transmit and thereby avoid interference from other instruments that might be operating in the same frequency. You can also use multiple microphones at one time.

The radio microphones are said to have their beginning in the original compander microphone that was built in 1976 by Nady Systems and received an Emmy award for his technology contribution in 1996.

Radio mikes are wireless and hence it is easier for the performers to use them on stage and it is a lot safer too when compared to the wires and cables dangling from wired mikes.

With Radio mikes that are wireless, the performers can be more relaxed and have ease of movement while performing. It enables them to move across the stage easily without having to tag the cable along. Secondly there is no need for cables to be joined and fixed together etc.

But then though they have such good advantages, they do have certain disadvantages too when it comes to the battery life. The two way radio batteries tend to get drained fast as the radio microphones guzzle more power in comparison to the cable mikes.

One other shortcoming could be the limited range within which the radio mikes operate. To get wider range you would have to buy higher models. There is also the risk of signals getting disrupted due to any other appliance or equipment operating within the same range.

Lastly to be able to get clarity and ensure clear frequency you will be constrained to limit the number of radio microphones that you use.




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Tuesday, January 11, 2011

Satellite Radio Quality, Content And Availability

By Owen Jones


Satellite radio has really taken off. It is very popular for two or three main reasons such as quality, content and availability. In the perspective of satellite radio, quality refers to the quality of sound that is capable of being reproduced by the equipment because of the signal; content refers to the types of programmes being transmitted by the various radio channels or stations and availability refers to the footprint or coverage of the satellite, that is how much area of land receives the signal from the satellite.

All these comparisons are made with terrestrial radio broadcasts of course. For example, we all know that typical AM or FM stations vary greatly in quality, the content can be heavily interspersed with advertising, jingles and mindless chatter and coverage is normally only on a very local basis.

The two giants in the American satellite radio market are of course Sirius and XM and each one is trying to out do the other in these three areas

Normally, satellite radio produces a quality of sound which is equivalent to CD quality. This is extremely high, particularly if you use decent quality equipment to replay the signal received. If you merely replay satellite radio through tinny, ancient, blown speakers, then you will hardly benefit from this boost in quality at all.

Quality, content and coverage have all played a part in increasing the popularity of satellite radio, but it is probably content which has played the biggest part.

You may be wondering why anyone would want to pay for subscription radio, when there is so much free radio about. It is a fair question, but in fact, similarities can be made with cable TV and broadcast television. Why do people pay for that? Is it the sound quality? Or the content? Or what? A lot of cable TV is rubbish as well. Sports coverage, possibly.

At least the preponderance of satellite radio is free of commercials. That has to be worth a few dollars a month and it is in fact a large selling point. Many people cite the lack of commercials as one of their foremost reasons for moving to satellite radio.

It is likely that all big league sports coverage will move to subscription only over the next few years. This will inevitably be carried out with the utilization of satellite radio. American football, soccer, baseball, basketball will all either get their own nationwide stations or be bundled with other stations

People are fed up with the amount of advertising on AM and FM radio, but at the end of the day, the most important reason whether to get satellite radio or not for the majority of people rests on content not even so much on the quality of the sound. If sport is taken off terrestrial radio and only available on satellite radio, then people, particularly men, will switch to satellite radio, which is exactly what happened with cable and satellite television.




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Wednesday, January 5, 2011

Digital TV Aerial Installers - Get Your Aerial Installed

By James Sollis


Are you like the many other people who are looking for digital TV aerial installers who can deliver quick high quality service? If you need an aerial installed in either your home or business it's important that the company you choose not only provide a competitive price but also be a reputable entity. You may have many questions about cost, time frame and the extent of the work to be done. By investigating ahead of time you can find digital TV aerial installers who can provide answers for any questions you have and give you the installation you deserve.

Always keep in mind that digital TV aerial installers are just like any other contractors while some of them are fine upstanding businessman others are nothing but snake oil salesman looking to make a quick buck. But by becoming an active participant in the process and doing some research up front you should be able to locate digital TV aerial installers who will not only do an exceptional job on your installation but who also look out for your best interest in the process.

And even though there are many digital TV aerial installers in your area it can sometimes be difficult trying to weed out the good installers from the bad. Many factors play into this including quality of installation, warranty and pricing. A good technique for getting at whether or not this installer is capable of doing a good job or just trying to "take you for a ride" is simply asking questions. Not only should the digital TV aerial installers be willing and able to answer the questions that you have put in the end you should also be content with the answers given. If for some reason the answer seemed odd or if you feel like you're consistently being up-sold or pushed to buy now then this should prompt you to start looking with another company.

Another great indicator of quality digital TV aerial installer is their willingness to stand by their work. Whether it is for a home installation or business installation many good digital TV aerial installers will offer some sort of warranty behind the hardware and service that they have provided. It is always reassuring to know that with a simple phone call you will have the installer back at your home and doing the needed repairs without cost to you.

So in the end choosing the proper digital TV aerial installers is a choice that is up to you, but by using these hints you will become a more informed consumer who will ultimately be more at ease with their decision and less likely to fall prey to a bad digital TV aerial installer.




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