Sound Systems Let There Be Sound

In the beginning there was a great void in worship services. A place where the readings and sermons could not be heard and the message lost to the flock. However, a booming voice could be heard, "Let there be sound!" And there was sound, and the flock saw that it was good, and they said that it was good and it was good.

While I am paraphrasing scripture to make a point, I have great reverence for spiritual services and for the word of God. My experience with services has varied from small communities of worship to large congregations, bursting at the seams on Easter or Christmas Masses. The one thing that I found in all was a message of hope and of brotherly love. The problem was I couldn't always hear that message well. This was not due to a lack of vocal ability by the pastors or lectors; it was simply the effect of a large venue and the aggregate noise of many people together. Adding in curious and bored children and it can often be very difficult to focus in on the Word, as it is shared. That is why many congregations have cried out "Let there be Sound!"

The solution to this problem is simple, and no longer prohibitively expensive; a professional sound system. One company which produces many different products to meet the needs of this market is Anchor Audio. Other sources of professional sound equipment include Bogen, CSI-Speco and Amplivox. From large PA systems, to voice and music systems, many options exist. A church has considerations which many other venues do not, which makes it wise to seek out a professional audio dealer for advice on how to best meet those needs. Certainly, a good voice system, which provides comprehensive sound coverage throughout the church, is required. This system should offer high quality sound, with low distortion to ensure that the message is heard clearly. Multiple audio inputs are likely necessary, to accommodate the lectors, musical leaders, choir, and pastor or priest. Some of these inputs are well suited to wired technology, but others are better suited to wireless options. The fixed positions, like a podium for the lecture and/or musical director are well suited for wired microphones, as they do not require mobility. The choir can also use wired, dynamic microphones, to provide coverage of the entire choir without the need for a complex network of microphones. The pastor or priest is usually best suited to a wireless microphone with a High Quality Beltpack Transmitter, as this allows free movement in delivering a sermon and in preparation of offerings or the Eucharist. All of these options can be integrated into appropriate sound systems. The Anchor audio products are largely modular, offering flexible designs, which can accommodate these various input and speaker configurations without being overly expensive or complex.

Speaker options are important to consider as well. Depending on the size, layout and acoustic qualities of the church, different speaker types and configurations may be best. Once again, a trained sound system expert from a full line dealer would be able to assist in the development of speaker system plans. In new buildings, built in sound systems are often the way to go, as they can be seamlessly designed into the structure. Ceiling speakers, tile speakers, horn loudspeakers, baffle speakers, foreground and background speakers, column speakers and self amplified speakers are all available to meet various needs. Knowing what each type can accomplish, as well as the significance of frequencies and decibel ranges and distortion values are all important when designing the complete speaker layout. Understanding coverage areas and dispersion of sound from the various speakers is also crucial to prevent sound dead zones or, just as bad, echoes or overlaps. Lastly, it is important to know where the microphones and speakers will be placed to avoid feedback problems from close proximity. For those who are not familiar, feedback is the cause of the loud screeching noise when a microphone is placed to close to a speaker.

By properly designing a church Wireless Microphone Systems, the message can be heard and enjoyed by all in attendance. For churches with multiple services, it also reduces the strain on the voices of the readers, speakers and choir members. Speak with a full line audio dealer to see about the sound system to meet your needs and varied pricing options, and "Let there be sound!"

How Far Cable Take Television Go

The number of Americans who can remember the days before reality television and the 24-hour news cycle is shrinking. However, during the late 1940s and early '50s, there were only four networks on the air. In addition to national news broadcasts, the four major networks aired programs like "I Love Lucy," "The $64,000 Question," and "Captain Kangaroo." These programs eventually became an important part of America's cultural history.

Unfortunately, not every household in the country could enjoy these iconic programs. During that time, television signals were transmitted from an antenna to homes within the antenna's line of sight. People living in mountainous or remote areas were outside of the antenna's range and without access. Primitive systems were developed by communities in these areas to provide residents with access to these programs. Typically, someone would place an antenna on a hill and run wire to each of the television sets. The television signal weakened as it traveled the length of the cable, so amplifiers were placed at about every 1,000 feet to boost the strength of the signal. While this system allowed the signal to reach homes that were not served by the antenna, it was not reliable. Amplifiers caused noise and distortion, plus the failure of one amplifier caused the failure of the entire system.
The 1960s were a period of slow growth for the industry. By that time, nearly one million customers received service from approximately 800 cable systems. Entrepreneurs and well-known corporations began investing in equipment and infrastructure. However, at the urging of the local stations, the government expanded the jurisdiction of the Federal Communications Commission to restrict systems from carrying signals from distant markets. Growth was stifled until the early 1970s.

Advances in technology, and decreased government regulation, led to big growth during the '70s. The first pay-TV network was launched in 1972. The network could be broadcast nationally through the use of a satellite distribution system using domestic satellite transmission. Soon after, an Atlanta television station airing sports and classic movies would begin to use the satellite service to broadcast nationwide to become the country's first superstation. As a result of the use of satellite technology, the number of program networks would multiply rapidly.

Cable really took off during the 1980s and '90s. The FCC relaxed regulations placed on the industry, which prompted cable companies to invest in wiring the country. By 1998, there were 171 national video networks and the average customer received at least 54 channels. The industry only continued to grow over the decades.

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The Advantages of Wireless Microphones

A wireless microphone, as the name implies, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Wireless microphone systems are a key component in almost every broadcast, motion picture, theatrical and sound stage production, as well as corporate, religious and educational venues.

The professional models transmit in VHF or UHF radio frequency and have true diversity reception which eliminates dead spots and the effects caused by the reflection of the radio waves on walls and surfaces in general. The VHF band is located in the frequency range between 30 MHz and 300 MHz. This is the other common band used in wireless microphone systems, but it is not used as commonly as UHF PLL Dual Channel Wireless Microphone Systems.

VHF wireless microphones are typically those of the fixed frequency type, meaning that the user has no opportunity to switch frequencies if interference is encountered. The UHF band is located in the frequency range between 300 MHz and 3 GHz and is the most common band used in wireless microphone systems. Depending on national regulations, which differ for every country, wireless microphones may operate in the range between 470 MHz and 865 MHz. These frequencies are shared with over-the-air TV broadcasts. So when selecting a frequency, the user must know what frequencies to stay away from to avoid interference.

Advantages and disadvantages of wireless microphones

The biggest advantage of a wireless microphone system is its freedom of movement. Since a wireless microphone is not connected by any cable, the user does not get restricted by the length of the cable. Wireless microphone sends audio signals over the air, rather than through microphone cables. The microphone is attached to a transmitter and the signals are received by a receiver connected to the audio console or recording device. The user can avoid cable problems which frequently occur because of the constant moving and stressing of the cables.

Though wireless microphones are in use everywhere, it has its disadvantages too, regardless of its state of the art technology. It has only a limited operation time due to low battery life. It does not work if the user takes the microphone out of range. Sometimes there may be the possibility of interference with other radio equipment or other microphones.

Different kinds of wireless microphones

Generally they are two types of wireless microphone systems - handheld wireless microphone and bodypack wireless microphone. Handheld microphone is like a normal wireless microphone, but it has a bigger body to accommodate the transmitter and battery pack. Bodypack microphone is a small box housing the transmitter and battery pack, but not the microphone itself. It is attachable to the belt or elsewhere and has a wire going to headset, lavaliere microphone or a guitar.

Some of the manufacturers of wireless microphones offer a plug on transmitter for existing wired microphones which plugs into the XLR output of the microphone and transmits to the receiver. This offers many of the benefits of an integrated system, and also allows microphone types to be used without a cable.

Wireless Microphones - The Pros and Cons to Consider

Wired microphones can be a real problem when you are out on stage trying to perform. The last thing you want while performing is to trip over those tangled wires and make a fool out of yourself. This is one of the reasons that wireless microphones have become so popular.

The great things about mics that are wireless is that they offer clear sound without the use of any cables. There are no wires to worry about, and they use special transmission and frequencies to transmit the sound. Some us radio waves, and others use infrared light to transmit the sound.

While there are definitely many pros to using Wireless Microphone Systems, you also need to know that there are cons as well. Before you decide that these are the right mics for your performing needs, it's a good idea to look at both the pros and the cons so you can make an informed decision.

First of all, let's take a look at the pros. One of the main pros of using mics that are wire free is that they allow you to easily move around while performing. You are not confined by the cables of your microphone. You can move around anywhere as long as you are within range of your receiver for the mic.

Another pro of these microphones is that they won't have the problems that often happens to the cabling in wired microphones. Since wired options get moved around, the cables often get stressed and may stop working or have problems. You can avoid this with a mic that is wireless.

You don't have to worry about cables everywhere on stage either, which happens to be a huge benefit. All those cables can be confusing and dangerous when you are performing, which is why so many professionals have made the switch.

Of course, there are some cons to using UHF PLL Dual Channel Wireless Microphone Systems as well. One problem with them is that some only have a limited range, which means you may still have some limitations. However, many of the higher end models should give you plenty of range for most types of performances.

There can be dead spots, interference, and noise with options that are wireless as well. Sometimes other radio equipment can bleed through, which is not something you want to happen when you are performing. When you have several of these mics in operation at once, you may run into some problems as well.

The good news is that wireless technology is better than ever, and many of these cons are not as much of a problem as they used to be, especially if you go with top quality mics. Even after looking at the pros and cons, with today's quality choices, you will probably find that wireless microphone factory is an excellent option for your performing needs.

How to use the wireless microphone

Wireless microphone is composed of several pocket transmitter (which can be carried in your pocket, the output power is about 0.01W) and a receiver, each pocket transmitters each have a different working frequency, centralized receiver can simultaneously receive each compact transmitter sends out the different operating frequency of the voice signal. It is suitable for occasions such as the stage platform, Wireless microphone is generally divided into: wall hanging type, portable and single receiving type. So how to use the wireless microphone?

1. the transmitter power switch power supply should first open, ensure the smooth, and then open the host, and pull out of the antenna to use.

2. The display carefully check the frequency points on the transmitter and whether the host showing the number of frequency is consistent, if not consistent the need to re modulation.
3. Ensure the consistent frequency points ,under the condition, then connection.

4. Pay attention to the observation on the host "RECEIVE" red receiving indication lamp is lit. Such as the constant bright representative can be normal use.

5. The use of the end, turn off the system power, shut down the transmitter power supply, the transmitter is placed in the chassis.

At the same time, The choice of wireless microphone is the key factors affecting of the sound quality. Our wireless microphone factory system adopts advanced circuit design to ensure the stability of output signal and transmitting signal can be smooth and wide frequency response, lets wireless microphone sound perfect.

Hot Sale Antenna Distribution Systems For Your Choice

Although your rooftop digital antenna is capable of receiving and sending high definition images to your tuner or television, sometimes that signal needs amplification. Antenna preamplifiers and antenna distribution systems serve to eliminate or reduce the reduction in signal caused by long cable runs and multiple splits. In many installations, both are used to ensure a strong digital television signal from start to finish. Identifying both devices helps you choose the right tool for your needs and install it correctly.

Coaxial cable, like any electrical line, causes a reduction in signal as distance increases. Known as attenuation, this reduction in signal may be enough to create a blocky or intermittent picture once it reaches the tuner depending on the age and condition of the coaxial cable. It isn't uncommon for a coaxial feed from an antenna to the tuner, splitter or distribution amplifier to reach 50 or 100 feet. To combat this loss, preamplifiers are mounted at or very near the antenna mast to boost the feed from the antenna. Professional antenna amplifier also serve to help in fringe reception areas, or when you are trying to receive a channel with comparatively low broadcast strength.

You cannot discuss signal loss preventing solutions like preamplifiers and distribution amplifiers without considering the cabling linking the two. Coaxial cables should be 75 Ohm, RG-6 quad-shielded coaxial cables. The 75 Ohm impedance, or resistance to signal is required to match that found at the antenna and tuner to prevent loss. An apt analogy is connecting a garden hose the same diameter as the spigot. If you connect a hose that is too small and and of a certain length, the water is a trickle at the other end. RG-59 is a cheaper alternative, but does not have the same shielding and signal-carrying capacity as RG-6.

A passive splitter is acceptable if you are dividing the incoming coaxial feed up to four times. Remember, however, that each split results in a 3-decibel signal reduction at the output. Combining this loss with an additional 50-plus foot run may result in signal loss. Distribution amplifiers counter this loss by boosting the feed from the incoming coaxial cable. These amplifiers are common in larger homes and businesses where the feed may be split many times without impact to signal.

Details of Dual Channel True Diversity Receiver

206 wireless system adopts newly developed digital wireless technology. The system can search vacant channels automatically and have Infrared data synchronization function. It is suited to stage,school,gymnasium,playground and etc.

Equipped with the same features as EM 2000 but designed as a twin receiver, RY-206 makes it possible for the RF signal to be looped through with the help of an integrated active splitter. With this design, you can set up systems with up to 16 channels without using external splitters. An integrated equalizer and guitar tuning device complete the package.
 
The dual channel true diversity receiver Features

Rugged 19" all-metal housing with integrated power supply unit
   True diversity technology for best reception quality
   Integrated antenna splitter for cascading up to 8 devices without using additional splitters
   Pilot tone squelch for interference-free operation
   Scan feature within the channel band system
   Frequency setting in 25 kHz steps
   Squelch setting always visible on the display
   Antenna cables for active antenna supply
   Transformer-balanced audio outputs
   HDX noise reduction system with signal-to-noise ratio less than 120 dB(A)
   Ethernet for connecting to a PC
   User-friendly menu interface with two-color backlit graphic display (red as a warning)
   Handheld Transmitters can be configured from the receiver menu
   Transmitters can be synchronized over the infrared interface
   4 selectable equalizer presets
   Soundcheck mode for monitoring transmission conditions
Adjustable headphone connection

Why Choose Our Single Channel True Diversity Receiver?

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Single Channel True Diversity Receiver

This ENG set offers a great amount of flexibility for portable recording indoors or outdoors. Its SKP 100 G3 plug-on transmitter transforms XLR equipped devices (such as microphones and mixing consoles) into wireless devices by simply plugging the unit in. The bodypack transmitter, as well as the plug on, can by synced up to the receiver with the simple push of a button. A very small high-quality omni-directional clip-on microphone completes this set.

You can be pleased with the quality of single channel true diversity receiver. For the selling price tag, this really is ideal. you simply can not beat this for the purchase price. You might be delighted with the purchase. Single channel true diversity receiver could be delivered on time with no troubles. You will not have second thoughts about this investment.

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Do I Need an Antenna Amplifier with my Antenna?

Looking about getting the DB4 UHF HDTV Antenna Amplifier. All stations are located with 35 miles of our location. Will this antenna require any amplifier? We will be placing the antenna in the attic area, no metal roof. Coax will be no more than 20 feet in length running to a single TV.

We always recommend trying to put antennas outside on your roof instead of your attic. Even though you don’t have a metal roof, your home insulation and other side wall materials in your home have a greater chance of getting in the way of broadcast signals in the attic. If those materials are wood, vinyl or something else you could experience a 20% or more loss in your signal.

With that said however, we have had customers use the DB4 in their attic with mounts and without mounts and report that it works great. It will really depend on your specific location, house structure and terrain.

You shouldn’t need an amplifier with a 20 foot coaxial cable. However, sometimes an antenna amplifier is necessary to overcome signal loss related to splitters and junctions. I would not recommend adding an amplifier if you don’t need one. An professional antenna amplifier does not create a signal, and may increase noise. However, if you are using a splitter for several televisions in your house, you may need an amplifier.

Effect Of Antenna Distribution Layout

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Mistakes in antenna selection, placement, or cabling can cause short range, dead spots in the performance area or low signal strength at the receiver that leads to frequent dropouts.

Before we cover placement, let’s review the types of antennas you’re likely to encounter in a wireless system.

Omnidirectional Antenna Types

The size of an antenna is directly related to the wavelength of the frequency to be received. The most common types used in wireless audio systems are 1/4-wave and 1/2-wave omni-directional antennas, and unidirectional antennas.

¼-Wave.  This antenna is one-quarter the size of the desired frequency’s wavelength.  (Example: A 200 MHz wave has a wavelength of about 6′, so a ¼-wave antenna length would need to be approximately 18″.) For VHF Applications, an antenna anywhere from 14–18 inches is perfectly appropriate as a 1/4-wave antenna. Since the UHF band covers a much larger range of frequencies than VHF, 1/4-wave antennas can range anywhere from 3 to 6 inches in length, so using the proper length antenna is important.

½ Wave. This antenna is one-half the size of the desired frequency’s wavelength. (A 1/2-wave receiver antenna would be about 3 feet long for the 200 MHz wavelength in the example above.)

Our antenna distribution systems having a stable signal receiving performance and good sound transmission. Specific performance is as follows:

Antenna Distribute Implement

>Low noise and amplifying circuit design

>8-channel low loss antenna dividers circuit design,four Single-channel automatic selective receiver can be used in a couple antennas.

>BNC pin ensure the reliable connection.

Wide Band Directional Antenna

>Directional antenna,decrease the interference to other closed equipment.

>High sensitivity,increase the signal receiving range.

>Wide frequency range,cover all of the UHF wireless frequency point.

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How To Pick Powerful Wireless Microphone Equipment

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The UHF PLL Dual Channel Wireless Microphone System is specifically designed for multi-system of KTV and campus.The system adopts same-band design and the two transmitters working can be easy used interchangeably. The system includes Dual Channel Receiver, Handheld Transmitter and Bodypack Transmitter.

The main features of a wireless microphone system

A wireless system contains just two parts:

Transmitter – connects to the microphone and transmits the signal wirelessly

Receiver – connects to the mixer or recorder and receives the wireless signal transmitted

Sometimes the transmitter and receiver is the same instrument, and is called a tranceiver. You still need two of them, though.

When choosing wireless systems, here are the important ‘technical’ considerations (in addition to audio quality) one must keep in mind:

Transmitting power, measured in mW or milli Watts (sometimes written as ‘mw’) – this decides how much range/distance it can transmit over. Usually 10-125 mW.

Frequency band/group – it is expensive to have one system efficiently transmit all frequencies of the spectrum. Moreover, if a certain range is illegal, it is pointless to waste resources on it. For this reason, you’ll find systems divided into different ‘frequency blocks’. Choose the one important to you.

Resistance to interference – needs to be tested in the real world, every other way is too complicated and unnecessary. Low frequencies are better generally because they ‘bend around’ walls better. If you’re in an area with a lot of ‘chatter’ things will quickly get complicated.

Reliability – how strong is the signal from end to end? The number and type of antennas tells us how reliable it is. More than one is always good.

Now, are you have a more precise understanding on our Wireless Microphone Systems? We have a lot of products waiting for your visit, we look forward to partnering with you!