Exactly What Is The Earpiece Singers Use On Stage

Every time a singer gets on stage, he or she wants to put on his/her best performance ever. This is why he/she will try to avoid any distraction that might otherwise affect his or her performance in a negative way. They will ensure that their concentration is really high and that they can hear themselves sing during that moment. One of the distractions that is usually in almost every concert is noise. The noise can be coming from the speakers, the echoes and even form the audience itself.

The music and the song that is normally heard when a singer is performing is referred to as house mix while the song that the singer hears from the speakers is referred to as monitor mix. Usually, a singer stands at the back of the main speakers that are normally placed in front of the audience. Most of the time especially on a big stage, the song that reaches the audience is reflected back to the stage (but not immediately). Such background music will prevent the singer from hearing his or her voice.

Stage monitors are small speakers that are directly aimed at the singer for him or her to hear himself or herself sing. Stage monitors were previously used in concerts and they are still being used on some small venues where cover bands do gigs e.g. in some private parties, bars etc. In the current concert venues, stage monitors do not work very well. This is because singers and musicians move a lot on stage when they are performing. Although the stage monitors enable the singer to hear the music on the stage, they are not as clear as personal monitors (referred to as earpieces, very different to Radio Earpieces).

Earpieces give the singer a detailed information regarding his or her performance. They make him/her hear both the song and the orchestra. They enable the singer to constantly hear his/her song regardless of his or her physical movement on the stage. This is unlike the stage monitors that usually provide the band’s and the singer’s voice based on their distance from the speaker. With stage monitors, the sounds usually vary especially if the singer is moving all over the stage.

When a singer has the earpieces on, he gets to choose what he wants to hear. For instance if he wants to hear himself sing or even hear the lyrics, he can. The earpieces help in drowning out the background sounds like the noises made by the crowd or even those from the band. In fact on average, the earpieces can help the singer reduce the background noise by up to 30 decibels. This can extremely help the singer during the performance.

Usually, the earpieces are tailor- made to perfectly fit the singer. They also come in different styles and colors and therefore the singer can pick the one that suits his/her outfit on the stage.

The most important benefit of having the earpieces on is that, they help the singer in eliminating or reducing the echoes. In an auditorium specifically built for concerts, sounds usually radiate through the entire building when the singer is performing. The audience really enjoy the music that echoes back to the stage however, the singer can easily get confused with such echoes. Note that, by the time the echo reaches the stage, it will be one or two seconds off from what the singer is singing at that moment.

Earpieces also help in blocking the sounds that are coming from the band. The instruments are extremely loud especially those that use electric amplifiers. This noise can make it really hard for the singer to hear himself or herself sing.

The earpieces give the singer the sound feedback and therefore he/she is able to hear everything that is in the song. This makes it easier for him/her to keep on with his or her performance.

Sometimes, you may notice that some garage bands who work in small areas are not using earpieces. The members of such bands usually monitor one another while performing to ensure that they keep up and stay in tune during the performance. However in large crowds of say a 100000 people (i.e. in huge stadiums), one will definitely need earpieces otherwise he/she may not hear anything and may even end up with off key sounds.

Motorola Solutions Envisions Virtual Reality Transforming Public Safety

Virtual reality and augmented reality will creep into our lives slowly in the next 10 years, it has so many applications from gaming to business. Motorola have been leading the radio industry for many years and are taking the initiative with this technology, While this will take away the need for CCTV, radios, radio earpieces and headsets, it will add a more immersive, structured way of running events and festivals.

Motorola Solutions  is exploring a future where virtual reality will immerse a public safety command center supervisor in an incident scene. By using a combination of virtual reality and eye-interaction technologies to navigate through video and data feeds from multiple sources, incident responses can be quickly coordinated and information shared widely to help guide officers and protect people at the scene.

Motorola Solutions will show live demonstrations of the virtual command center on Aug. 15-16 at the Association of Public Safety Communications Officials (APCO) 2016, held at the Orange County Convention Center in Orlando, Fla. (booth #1337).

The virtual command center proof of concept uses eye-interaction technology from startup company Eyefluence, a Motorola Solutions Venture Capital investment, to envision the future of public safety.

A look at today’s smart public safety solutions

Today’s public safety command centers can integrate the Project 25 (P25) standards-based, interoperable ASTRO® 25 land-mobile radio (LMR) network for mission-critical communications with the power of LTE broadband and the latest in smart public safety solutions to turn data into intelligence.

Since 2009, Lake County, Fla. has been using Motorola Solutions’ ASTRO 25 LMR network as the core network for emergency interoperable communications for several counties across Florida. On Aug. 17, Greg Holcomb, Lake County public safety communications technology manager/E911, will join Motorola Solutions in a managed services panel discussion at APCO entitled “Systems Down: Best Practices for Eliminating this Status from Your Network Performance Logs” (see all Motorola Solutions presentations at APCO 2016 here).

“The Lake County core network and many connected sites on this P25 mission-critical communication system are managed by Motorola Solutions,” said Holcomb. “With their robust managed services offerings, the company ensures 24×7 availability, reduced risks and maximized performance for our public safety network.”

Motorola Solutions’ CommandCentral platform provides real-time intelligence throughout all phases of police work – from planning, to operations, to investigations. CommandCentral Aware aggregates video from several sources, allowing crime center analysts to view multiple feeds on one screen and share high-definition images of suspects, vehicles, license plate numbers and other critical information to responding officers in real time.

“Law enforcement agencies have access to data from multiple sources including 9-1-1 calls, live video feeds, social media activity, nationwide databases and more,” said Jim Mears, senior vice president, Motorola Solutions North America Sales. “Motorola Solutions’ CommandCentral platform captures this information and turns it into real-time intelligence that helps first responders resolve incidents quickly and even prevent them from happening.”

The CommandCentral platform will be showcased at APCO 2016, along with several of the latest mission-critical communication solutions from Motorola Solutions’ Innovation Design Center in Plantation, Fla. This includes the Si500 body worn camera andCommandCentral Vault digital management solutions, which automates and streamlines the processing of video from the point of capture to video management and review, and the LEX L10 LTE handheld device designed for the rigorous demands of real-world, front-line policing.

Introducing new mission-critical solutions at APCO 2016

Motorola Solutions is launching the new APX™ 8500 P25 all-band mobile radio, updated ASTRO 25 network features and the IMPRES 2 energy management system.

APX 8500 P25 all-band mobile radio: With Motorola Solutions’ new APX 8500 P25 all-band mobile radio, first responders can use a single mobile radio to exchange critical voice and data communications – such as text messages and GPS coordinates – with multiple agencies and jurisdictions operating on different radio bands. Radio updates can be made instantly without interrupting voice communications; the radio does not need to be brought to a shop, saving both time and money. When connected to the Motorola Solutions VML750 LTE vehicle modem (now available globally), the APX 8500 frees up radio channels by offloading data to LTE.

APX Personnel Accountability for ASTRO 25 trunked networks: The APX Personnel Accountability solution is now available for ASTRO 25 trunked networks (which enable efficient operation of large systems with a small number of channels) and continues to also be available on ASTRO 25 conventional networks (where users select communication channels).

Commanders using the APX Personnel Accountability solution can automatically perform tactical notifications and streamline roll call processes via a computer. They can automatically account for staff using APX radios at the scene of an incident. If a team needs to evacuate, commanders can instantly alert them through their radios and receive acknowledgements. Commanders can monitor radio battery life, identify radios and receive radio power down indications. If a radio is on the wrong channel, a commander can remotely switch the channel to the right one and ensure the entire team can communicate with each other.

ASTRO 25 Enhanced Geo Select: Geo Select provides hands free operation of APX radios when entering a defined region, or geofence, and this feature is now available even if the radio is no longer on the network. When entering a geofence, APX radios can automatically take action such as change channels, alert the user and change power levels. No manual intervention is needed.

ASTRO 25 Over-The-Air radio software updates: ASTRO 25 Over-The-Air Programming (OTAP) has been available for radio managers to remotely program APX radios. Now they will also be able to update APX radio software over-the-air for their entire fleet simultaneously over the course of a few days, without disrupting radio function in the field. With this new feature, there is no need to bring radios to the shop for software updates, saving both significant time and money.

IMPRES™ 2 energy system for APX radios: The new IMPRES 2 high-capacity, water-resistant batteries keep APX radios powered longer. When combined with the new IMPRES 2 charger, they deliver 60 percent more charging cycles than traditional lithium-ion batteries. The IMPRES 2 charger’s enhanced diagnostics provide usage data including a battery’s ability to hold a charge, letting users know when it’s time to replace it. The multi-unit chargers also feature customizable charging – batteries in service can be charged at 100 percent while those in storage can be partially charged to optimize battery life.

Music From Your Sunglasses? Zungle’s Founders Crowdfund $2M For Shades With Bone-Conduction Speakers

Anything with bone conducting technology, we will jump upon and love the hell out of! When we heard about Sunglasses that had speakers with bone conducting inside, to allow you to make calls and listen to music whilst on the move we thought what a great idea. This crowd-funder is looking to raise $50,000 but $1 million would be a good start. See more on this here.

One of the latest hot crowdfunding campaigns is for dark sunglasses called the Zungle Panther with bone-conduction technology that allows them to be used to listen to music and make phone calls. Jason Yang, Zungle’s 30-year-old CEO and co-founder, came up with the idea because he was annoyed with trying to wear an earpiece and sunglasses to listen to music while wakeboarding.

“We all love extreme sports, and Jason is a huge fan of wakeboarding,” says Sean Bang, 30, Zungle’s chief marketing officer and co-founder. “He’ll have sunglasses on, but eventually the earphone doesn’t work with the sunglasses, and he felt that it was inconvenient and uncomfortable. So we decided to get rid of the inconvenience.”

With Zungle’s sunglasses, wearers can listen to music or make phone calls while skiing, biking or wakeboarding without worrying about an additional earpiece. Bone-conduction technology, in which you hear sound through vibrations to your skull rather than through your ears, isn’t new. But the idea of putting it into relatively inexpensive consumer products, like sunglasses, has been gaining traction recently.

So after fiddling with the product for nearly a year, in June, the two friends, who had worked together at marketing firm Innocean Worldwide in South Korea, along with two other cofounders, Chris Hong and Injun Park, turned to Kickstarter with a stated goal of $50,000 for their high-tech sunglasses. As with many crowdfunding campaigns, that $50,000 number was a lowball one; Yang says “about $1 million” was their actual goal. The Zungle Panther has a similar look to Oakley’s shades, and retails for $150. Backers who chipped in $89 could get them in a choice of colors as a “reward.” “When we started, we didn’t have enough money to create this product,” Bang says. “We chose Kickstarter because we can target everyone around the globe.”

By the time the campaign ended, in mid-July, Zungle had raised more than $1.9 million, putting it among Kickstarter’s top 100 campaigns of all-time.

What to look for when buying a Headset

Closed Back Headphones vs. Open-back Headphones

Open-back headphones have pads which rest on the outer ear. They’re designed such that the outer shell of the ear cup has perforations usually with horizontal cutouts. The Open back headphones design of the ear cup enhances better natural sound because of less coloration as compared to the Closed back headphones.

Closed back headphones have much larger earpads which encircle the ears. They are designed such that there’s a big pad which cups the ears, and it features an insulated outer shell of plastic which covers the ears. The Closed back headphones actually have a very solid outer shell which doesn’t have any sort of perforations such that the outer shell effectively cups/encircles the entire ear. The Closed back headphones are excellent at isolating noise. They block most of the ambient noise, but they’ve a smaller sound stage, which gives the user the perception that the audio/sound is originating from within their head. Closed back headphones also tend to produce much stronger low frequencies as compared to Open back headphones.

Low Impedance vs High Impedance

Headphones normally come in various different impedance levels, such as 8 ohms, 16 ohms and 32 ohms. The power that’s supplied by an audio source may be at varying levels because of a variety of factors including being limited because of being battery powered. Generally, as the impedance of the headphones increases, much more voltage will be required in order to drive it, and the audio loudness of headphones for a particular voltage decreases.

The determination of impedance is usually disregarded by many headphone buyers, however, the truth is it’s one of the most important factors to consider when choosing the best headphones for your particular needs. Impedance is basically just how much power the headphones can put out so that it can overcome resistance to move the headphones’ diaphragm.

Low impedance headphones (that is, less than 25 ohm), usually require little power in order to deliver high audio levels. Low Impedance headphones play well with devices which have weak amplification. These can include; mobile phones, portable music players and various other portable devices. This type of headphones can be used at home and also while jogging with your mobile phone; this is one of the reasons why most of the on-, in-, and over the ear headphones, are low impedance. Low impedance headphones are normally designed to get plugged directly in to a single (one) source, and generates sound more efficiently from a lower level input signal. These headphones tend to be much louder and much more efficient, however, they will also require a much more capable amplifier.

High impedance headphones (25 ohms and above), generally require more power in order to deliver high audio levels. As a result, they’re protected from damages caused by overloading. High impedance headphones are typically designed for studio like applications where there might be multiple phones/devices wired in parallel and receiving input signals from a single source. High impedance headphones are more tolerant of the amplifier limitations, however, they will produce less volume for a particular output level. They are also a little more durable (that is, electronically), however, they require much higher signal levels in order to produce the same level of output level of the low impedance headphones. This type of headphones can be used with a wider range of audio equipment.

Passive Headphones vs. Active Headphones

Passive (noise cancelling) headphones are made of materials which help in blocking out sound waves from the surrounding environment. The same way ear muffs soften the outside noise, so does this type of headphones employ passive noise canceling. This type of headphones are typically used for both professional mixing and monitoring, like in broadcast and recording studios, and such other applications. Passive headphones are basically designed to playback music/audio true to the actual original recording, with minimal, compression, EQ, and such other sound enhancements.

On the other hand, Active headphones use batteries in order to power the built in Digital Signal Processing (also abbreviated as DSP) technology which processes play back for a particular reason, for example, to enhance the bass and the high end. Due to the enhancement of playbacks with sharper high ends and more bass, active headphones are more popular for general listening and listening to music for pleasure. Active noise cancelling headphones are also made of materials which help in blocking out outside noise, however, they take things a step further by making their very own sound waves; the sound waves created mimic the outside noises, but are a mirror image of each other, thus cancels each other out.

Wired Headphones Vs Wireless Headphones

When choosing a pair of headphones, deciding between wireless vs. wired is among one of the most overlooked factors. Wireless headphones might be a more popular choice, however, the wired headphones also have their own set of benefits. Well, that being said, as a general rule of thumb, between wireless headphones and wired headphones, assuming a similar price between the models; the wired headphones usually offer a much better quality. Also, the audio quality may get compromised over Bluetooth.

You can opt for the wireless headphones if you are not much of an audiophile, and you tend to travel a lot. If you really don’t like getting the cables of your headphones getting tangled, or caught while listening to music/audio, then the choice should be rather simple; go for wireless headphones.

You can opt for the wired headphones if you are an audiophile, and you do not necessarily bother with the wireless options unless absolutely essential like using them when traveling, or keeping the headphones as a backup. As aforementioned, the wired headphones are way ahead in terms of output quality as compared to the wireless headphones. You will never have to worry about running out of batteries, unless you happen to opt for wired headphones which cancel noise. In addition, you will never suffer from interference from the other commonly used wireless electronic devices. However, you will need to take good care of the wired headphone cables, or they will eventually break.

Who Made the very first 2 Way Radio: 1907- the 2000s: The Life of these Two Way Way Radio

The first two way radio made its way into the Western market in 1923. Despite its late appearance, the device was primarily conceptualized in 1907 as part of a military communication program. There has been some controversy regarding who first made the two way radio. However, most people seem to attribute this invention to Frederick William Downie, Senior Constable of the Victorian Police in Australia. In this article, we take a look at the path that this radio has traversed through the ages- from 1907 to the 21st century.

Origin of the 2 Way Radio

In the 1900s of Australia, the 2 way radio was installed in police cars and used as means of communication for the purposes of surveillance, checking locations and keeping team mates posted on updates. This was a breakthrough invention for the police as it caused an instant increase in the overall efficiency of working. From instant reports to integrated surveillance systems, the two way radio was pivotal in improving the effectiveness of the Australian police force. Suddenly, people discovered the ease with which the law of the land could be enforced and security could be maintained. This was the one method by means whereof many lives were saved and the state became one of the safest places in the world. Needless to say, the overwhelming response that the two way radio received propelled it to fame and it then became one of the most popular methods of law enforcement in the world.

The popularity of the 2 way radio rose steadily over the years. From police cars, the device’s many uses branched out and it became a part of navy ships and even military operations. Since many mariners and platoon commanders faced problems of communication, the convenience of the two-way radio was highly appealing to all. Transmissions of messages became convenient and there was a certain smoothness that the radio communication afforded to the operations.

The Creation of the Modern Day 2- Way Radio

The global status that the 2 way radio enjoyed is also one of the biggest reasons for its adaptation into various communicative derivatives including the modern day walkie talkie and even the modern cellular phone. Before it achieved this global, improved status; however; the two way radio was one of the most rudimentary objects that could be used in police surveillance. The first radio was so heavy and cumbersome that it used to take up the entire backseat of the police car. While it might have had many benefits, the sheer size and volume of the object made it difficult to catch and apprehend criminals at the earliest. With technological improvements and the right incentive, the two way radio has improved leaps and bounds. What once used to occupy almost half the car space can now be fitted into a pocket with ease, while fulfilling the same purpose as its predecessor.

Uses and Benefits of the Modern Radio

From the 1900s to the 21st century, the two way radio has made immense progress. What earlier was used exclusively by the police had now become an instrument in the civilian space. From law enforcers to children, almost everyone could purchase walkie talkies and use it. This was the first time that the world saw the walkie talkie as an instrument of recreation. These days, walkie talkies are used as much by kids for their games as they are used by professionals in emergency situations. From medical EMTs to firefighters, walkie talkies have become a regular in the city’s working scenario.

One of the biggest uses of walkie talkies these days are in firefighting operations. Coordinating external help and amassing the required support for the rescue operation are common functions that are carried out over the two way radio system that was once pioneered by Downie. Over and above its use in emergency situation, the two way radio is also used for the basic purposes of communication and organization in construction sites, among municipal workers and in many facets of working companies.

Concluding Thoughts

When one considers the many benefits that the 2 way radio has brought to the world population, one cannot help but pay homage to the genius of Frederick Downie. While the remarkable transformation through the ages is something that we must all bear in mind, it is undeniable that the blueprint was an instance of pure creative and imaginative genius. There are multiple uses of the walkie talkie in the modern world today. From communication in emergency situations to its importance for recreation, the modern two way radio is arguably one of the most important facets of communicative technology. All in all, the genesis and development of the two way radio is undoubtedly one of the most outstanding creations of the previous century.

Motorola Solutions to buy UK’s Airwave for $1.24 billion

As this article shows, Motorola move closer to sealing the deal to supply the emergency services for the whole of the UK, this move seems to prove what we have been saying, as Airwave have a working relationship with the emergency services and a good majority of the equipment they use are Motorolas’ own products they are in an excellent position now.

Walkie-talkie and radio systems maker Motorola Solutions Inc said it would buy UK-based communications company Airwave Solutions Ltd for 817.5 million pounds ($1.24 billion) to beef up its services business.

Shares of Schaumburg, Illinois-based Motorola were up 3.4 percent in extended trading on Thursday.

Airwave, owned by a fund of Australia’s Macquarie Group Ltd, provides voice and data communications to more than 300 emergency and public service agencies in Great Britain.

Motorola’s sales have slipped as its major customers, which include police and fire departments as well as other government agencies, curtail budgets.

The company is trying to strengthen its services business – which provides communication services to governments, businesses and public safety agencies – to drive growth.

Activist investor ValueAct, Motorola’s largest shareholder, said last month the company’s shares were undervalued and that it would talk to its board about ways to enhance shareholder value.

Motorola Solutions said it plans to fund the purchase of Airwave, which has about 600 employees, with bank financing and cash on hand.

The deal is expected to add to adjusted earnings and free cash flow immediately after closing in the first quarter of 2016, Motorola said.

Comprehending The Essentials of Two Way Radio Antenna

An antenna is essentially the most crucial element of a two way radio and other transmitting application such as cell phones, television, radar, or satellite communication. It is responsible for performing the most important task – converting electric power to transmittable radio waves and the other way round.

How an Antenna Works

To transmit a signal, the transmitter provides an electric charge that oscillates at a specific radio frequency to the terminals of the antenna. Consequently, the antenna sends out corresponding electromagnetic waves. During reception, the antenna takes some of the power of the transmitted electromagnetic waves to generate an extremely small voltage for the terminals, which is then redirected to a receiver that amplifies the signals. This is basically how an antenna works.

Extensive Applications

The applications supported by an antenna go beyond communication. The same concept powers today’s high tech wireless applications that run computer networks; Bluetooth enabled systems, garage door openers, and baby monitors. It’s important to know that a perfectly functioning antenna is not only critical to the functioning of your two way radio ; it also helps maintain the life or longevity of your equipment.

The Bigger, The Better

The first and most important rule of thumb about an antenna to keep in mind is that the taller it is, the higher your db gain. A high volume of db gain is critical to achieving a stronger reach and better performance of your two way radio equipment. This basically translates to, “the bigger, the better.” However, in order to achieve results in practical situations, the antenna can have only so much height. In essence you have to sacrifice convenience for performance or vice versa. You can’t walk around or even install a gigantic antenna for all your needs, say for example your car radio.

Positioning of Antenna

The second rule of thumb pertains to the positioning of your antenna. The most optimal position for then antenna would be the centre of your metal car roof. In situations where this is not possible, you would need a “no ground plane” antenna. A no ground plane is basically just a metal surface that goes around the base of your antenna so that you have something for the radiating signal to react with. The next aspect you need to consider for your antenna is the frequencies at which you would be transmitting on. A VHF radio transmits and receives in a range from 136 to 174 MHz.

Chubby and Long Antennas

There are different kinds of two radio antennas available depending on how you want to use it. The large stock antenna is powerful and can be replaced or upgraded as you require. The shorter or stubby antenna provides a great deal of convenience. You can add a longer whip antenna to enhance your range. When it comes to two way radios, you stand to gain a great deal of advantages by having a business radio that comes with a removable antenna. The one problem is that removable antennas may not necessarily be compatible with all kinds of radios.

Motorola DP4800 – The portable radio that packs a punch with finest in class

Despite the massive onslaught of mobile phones and smartphones in recent times, portable radios have managed to hold firm ground as they specifically cater to special communication needs across industries where clear and precise interaction is paramount. Motorola is considered a pioneer and a household name in the radio communications industry. The Motorola DP4800 portable radio proves yet again that the company is committed towards delivering world class communication products that make use of the latest in technology.

The inclusion of GPS, Bluetooth audio and data and full-fledged text messaging capability makes the DP4800 an extremely powerful and well-rounded communication device. Moreover, it provides quick call-capability to individuals as well as to groups. The built-in full color LCD display has day/night modes that facilitate easy reading of messages. Plus, the DP4800 is no slouch in the audio front as well. Its Intelligent Audio feature along with customizable audio announcement capability guarantees enhanced audio performance every single time you communicate with it.

The Motorola DP4800 supports both VHF and UHF frequency bands and has a 5-line keypad with clearly visible and well-aligned alphanumeric buttons. This 5-tone device has a capacity of 1000 channels and comes with five quick programmable buttons, an additional emergency button on the top, IP57 certification for waterproofing, a tri-color LED that gives feedback on the radio operating status, and a FM intrinsically safe option. Apart from these major features, there is a whole host of other notable highlights which makes the DP4800 an appealing choice for consumers. Some of these include VOX capability, option board capability, privacy features, analogue mode compatibility, and digital phone patch compatibility.

Like all other modern day portable radios manufactured by Motorola, the Motorola DP4800 takes complete advantage of the customized applications that have been built for it. Some of the applications include the likes of email gateways, location tracking, remote monitoring, management of work order tickets and man down emergencies. The DP4800 works flawlessly with Motorola’s MOTOTRBO system which maximizes the radio’s capacity using a technology called ‘Capacity Plus’ and thereby permitting high volumes of voice and data to be transmitted up to a thousand users without the need to add any new frequency bands. On the other hand, the ‘Linked Capacity Plus’ technology of DP4800 allows users to use the MOTOTRBO system for covering a wide area in order to link teams working across multiple sites.

Users can benefit from secure communication channels when using the DP4800 as it comes loaded with built-in scrambling. The DP4800’s Transmit Interrupt functionality provides users with an option to interrupt an ongoing communication in order to relay important or highly critical messages. Its mechanism for Emergency Calling ensures safety of employees. Communication is further improved with the help of PTT ID. The calls are received every time with the help of its channel scanning schemes. In terms of design, the DP4800 ticks all the relevant boxes as it exudes compactness, looks toughened to handle harsh conditions and is also water and dust proof. After going through the features and capabilities of Motorola’s DP4800 portable radio, it is fairly easy to conclude that the product has been built to last and deliver a unified and seamless communication experience which is hard to match by its rivals.

What Does The Term 2 Way Radio Essentially Mean?

Basically, the name two-way radio means that the radio in question can both transmit and receive signals. The two-way part of the name refers to the sending and receiving of said messages.

Some radios, such as the AM or FM radio you might listen to in your car, can only receive incoming signals, whilst other radios can only transmit signals. A two-way radio, however, can both intercept incoming messages and relay outgoing messages, because of this; two-way radios are a type of transceiver.

At its most basic, a two-way radio is a device that receives radio waves through the air and transmits a return signal.

How it does this is actually rather ingenious. Let’s say a user receives a message on her radio. The antenna on the top of the radio houses a group of electrons, these electrons will respond to messages received on specific channels (different groups of electrons respond to different channels). The electrons will then translate the radio waves into electrical impulses, which are then fed to a small processor. The processor, in turn, converts the electrical impulses into a signal, which the radio’s speakers can then play aloud.

The process is reversed if our hypothetical user is replying to her message, in this instance, the vibrations that constitute her voice will rattle a small membrane inside the microphone. These vibrations are fed into the processor, which converts them into an electrical signal. The electrical signal is pushed out to the electrons in the antenna and the signal is broadcast to our other user.

So you see, the process is clearly working on a two-way basis, hence the name. Two radios, when set to the same channel, should never have any problem connecting with one another (even if they are manufactured by different brands). The communication is pretty much instant, which is a big reason why radios play such an integral part in many areas of our lives, such as travel, security, commerce, public safety and trade.

It is important to note, however, that a radio set to receive VHF (Very High Frequency) signals will be unable to communicate with a radio set to UHF (Ultra High Frequency) mode. There is virtually nothing at all that can be done about this.

Of course, the other name used for handheld transceivers in walkie-talkie, but we reckon that one’s pretty self-explanatory…

ETRI presents a blueprint of the 5G Future

We will see a huge change in the way we access the the internet in the future when 5G is here, at speeds that only big businesses and high level internet companies see at the moment, we will have this to hand on our smart phones and tablets. When 5G is hundreds of times faster than any of the UK’s broadbands, households will be looking to the mobile phone companies to supply their home broadband.

A 5G future is no longer a distant one, but an upcoming reality. High quality videos of more than 10Mbps can be served simultaneously to 100 users even in a train running at up to 500km/h. People can experience data rates that are 100 times faster than currently available technologies.

The Electronics and Telecommunications Research Institute (ETRI) of Korea will hold a “5G technology demonstration” on the 18th December, 2015. It will demonstrate future SNS (social network service) and several 5G core technologies such as “millimeter wave”, “Mobile Hot-spot Network”, “in-band full duplex” and so on.

5G is the next generation wireless technology that would provide even faster data rates, even lower delays, and even more devices connected than 4G. Accordingly, distinct and differentiated applications are expected in 5G.

ETRI’s “future SNS” is a kind of trial service model to apply 5G technologies that provides dynamic user-centric connection to neighboring people, things and spaces. It is characterized by instant content-sharing between users, communication with neighboring things, and Giga-bps(Gbps)-grade video applications in vehicles.

5G core technologies demonstrated by ETRI include the following:

— MHN (Mobile Hot-spot Network) is a mobile backhaul technology that provides high-speed Internet access of Gbps in vehicles at speeds of up to 500 km/h (e.g. KTX in Korea). Almost 100 passengers can watch videos of high quality simultaneously.

— ZING is a near-field communication technology that enables mass data to be transmitted with 3.5 Gbps data rate between neighboring devices within the radius of 10cm.

— Single-RF-Chain compact MIMO technology enables a single antenna to simulate the effect of multiple antenna. It can reduce antenna volume and cancel inter-antenna interference in a multi-antenna system.

— Millimeter wave (mmWave) beam switching technology provides fast switching of radio beams to mobile users, and therefore allows seamless Gbps-grade service in mobile environments.

— Mobile Edge Platform (MEP) is a mobile edge cloud server on vehicles that enables passengers to enjoy customized Gbps-grade content and connects them with neighbors, things and spaces. It provides user-centric services.

— In-band Full Duplex technology can transmit and receive signals simultaneously over the same frequency band. It can increase spectral efficiency by up to two times.

— Small cell SW technology is designed for AP(Access Point)-sized small cell base stations that can reduce communication dead zones and improve data rates per user in a hot-spot area.

“With this demonstration event, we are officially introducing our R&D results on 5G. We will continue to lead the development of 5G technologies. Also, we are trying to develop commercialization technologies needed by businesses, and to construct a 5G ecosystem.” said Dr. Hyun Kyu Chung, vice president of ETRI Communication & Internet Lab.

In January, 2016, ETRI will demonstrate Giga internet service and future SNS in a Seoul subway train installed with MHN and ZING kiosks. ETRI will also introduce hand-over technology on a millimeter wave mobile communication system and 5G radio access technology that satisfies 1 millisecond radio latency.

About ETRI

Established in 1976, ETRI is a non-profit Korean government-funded research organization that has been at the forefront of technological excellence for about 40 years. In the 1980s, ETRI developed TDX (Time Division Exchange) and 4M DRAM. In the 1990s, ETRI commercialized CDMA (Code Division Multiple Access) for the first time in the world. In the 2000s, ETRI developed Terrestrial DMB, WiBro, and LTE-A, which became the foundation of mobile communications.

Recently, as a global ICT leader, ETRI has been advancing communication and convergence by developing Ship Area Network technology, Genie Talk (world class portable automatic interpretation; Korean-English/Japanese/Chinese), and automated valet parking technology. As of 2015, ETRI has about 2,000 employees where about 1,800 of them are researchers.