Month: March 2016

Motorola completes £700 million acquisition of UK emergency comms provider Airwave

Motorola has completed its acquisition of Airwave, the former provider of the mobile communications network for UK emergency services.

The acquisition was completed on a debt-free basis with a net cash payment of around £700 million, with a deferred cash payment of £64 million to be made in November 2018.

Motorola expects the acquisition to immediately contribute to non-GAAP earnings and free cash flow.

Airwave is headquartered in Berkshire, England, and employs roughly 600 people. It is owned by a fund of Australia’s Macquarie Group.

In late 2015, Airwave filed a legal challenge to the Home Office after EE became the preferred supplier to provide a 4G network to the UK emergency services. Motorola is the preferred bidder for user services to the emergency services.

Airwave complained about the procurement process and the inability of the cellular network to handle the traffic. Currently these services are provided through Airwave’s own terrestrial trunked radio, or Tetra network, which will cease to be a component of police radios.

The decision to move from Tetra has been criticised by some, including members of the Tetra + Critical Communications Association.

Advocates of moving to 4G cite alleged failures of the network during the 2011 riots.

“The acquisition of Airwave enables us to significantly grow our managed and support services business and reflects our commitment to the public safety users in Great Britain,” said Greg Brown, chairman and CEO of Motorola Solutions.

“The combination of our years of experience as a trusted global leader in mission-critical communications and Airwave’s proven service delivery platform will provide Great Britain with innovative emergency services technology that enhances public safety today and into the future.”

This has been in the news for a while and it is a really smart move by Motorola, they have purchased the company that run all the communications for all the UK’s emergency services (tetra network) and manage all of the infrastructure along with that, so with the up-coming contract renewal and many of the phone companies sniffing around looking to capitalise, Motorola have shored up their position with this acquisition. We found this article here, where you can find a lot more on the story throughout the site.

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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.

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Some styles of Bluetooth earpieces

Bluetooth technology has been designed for many different purposes and situations. Consequently, when people want to buy a bluetooth ear piece for a specific situation, there are some things that they will need to consider. Specifically, based on their specific situation and circumstances, they will need to review the best style of bluetooth earpiece that is available on the market today. Since there are different styles that have been made for for one or more reasons, it’s important for each individual to do their research to see which style can accommodate their needs. It is also important to note that the kind the person purchases must be comfortable so that they can wear them for an extended period of time and they fit the devices that they will be used for. Listed below are three of the bluetooth styles that’s currently offered by manufactures all over the United States and abroad.

Bluetooth ear pieces for Mobile Phones

Most people take their mobile phones wherever they go. To work, school, church, parties and all kinds of other events that they may attend. Because these phones have become commonplace in many environments, people have a need to handle them and talk to others when their hands are free. This is also a great reason for individuals who work in certain settings to make sure that they are buying the right style that will best fit their needs.

One specific style that some people may choose is the ear cradle style of headphone. In fact, this kind of bluetooth earpiece is idea for people who want to spend their time working out and performing all kinds of other extracurricular activities. People are also encouraged to buy this kind of style because they may be driving when they receive a telephone call from a family member. Or, they may be working at the job typing a memo or walking around taking care of wide hosts of other kinds of activities that are not conducive to holding a mobile phone by hand to the ear. Whatever the situation, this style of bluetooth earpiece technology is great for many different situations and purposes.

Bluetooth ear pieces and Headsets for Music Lovers

In addition to the cradle style for mobile phones, people should also review other styles as well. One specific style that is also functional in many different settings is the DJ over the head headphones. This style has been designed for the serious music lovers, especially those who can appreciate making distinctions in sounds and beats that come from specific musical instruments like the bass, violin, trumpet and other popular instruments. For those who like and prefer this kind, they will also find that this is one of the best styles for keeping out outside noises that normally interfere with a person’s overall entertainment experience. Also, because they are wireless, they are great for people who like to stay mobile during the day instead of remaining in a sedentary position.

Bluetooth Ear Pieces for IPODs

In some situations, people may want to use bluetooth technology with their IPODs. Therefore, they should consider buying an additional popular style bluetooth earpiece technology. This style is known to be very popular, specifically because it is similar to an actual earbud. An ear bud is also another excellent choice for people who want to remain both active and hassle free. Though this is a great choice for people who like to remain mobile in a wide variety of different situations, one of its main draw backs is that they tend to fall out of the individuals ear. Which means, they can also be lost since it lacks additional support to keep them stabilized inside the ear.

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The Effect of Earplugs in Preventing Hearing Loss From Recreational Noise Exposure (A Systematic Review)

This is an interesting review of a study of how effective ear plugs are in the workplace. We take for granted that people working in loud factories wear protective hearing, but many of the clubs, pubs, concerts and festivals that have as equal levels of sound. As they say below, it isn’t mandatory to wear ear plugs in such environments, which defies common sense and possibly causes more damage than we understand. Here you can find the original source of the review.

A review of the literature turned up only two high quality studies that looked at whether wearing earplugs to music venues will prevent hearing loss and tinnitus directly afterward.

Dr. Wilko Grolman and colleagues at University Medical Center Utrecht in The Netherlands searched for published studies containing the keywords “music” and “earplugs” and screened 228 resulting papers. All but four were not eligible for inclusion in the review and only two were highly relevant and did not have a high risk of bias, in the reviewers’ estimation.

Two studies simply examined people who chose on their own to wear or not wear earplugs, while two randomized controlled trials tested what happened when participants were assigned to wear earplugs or not.

Two studies reported on hearing loss and tinnitus while one only reported hearing loss.

The two best studies were different enough that the researchers couldn’t combine their data and analyze the results, the reviewers wrote. Both included 29 concert attendees and performed audiometry before and after the concerts. In one study, participants were allowed to choose whether or not they wore earplugs, and only three chose to wear them.

“Frankly, with such a small comparator group between three subjects and the others, it would be hard to assess validity of plugs or not,” said Dr. Jennifer Derebery, president of the Los Angeles Society of Otolaryngology and lead author of the first study.

“We had trained them all in proper insertion, and encouraged but not required wearing them,” Derebery told Reuters Health by email.

In the other study, 15 participants were assigned to the earplug group.

In general, wearing earplugs did reduce hearing loss directly after the concerts, but did not eliminate it completely, as reported online March 3 in JAMA Otolaryngology-Head and Neck Surgery.

“Ear plugs are effective in preventing hearing loss when they are used both correctly and consistently,” said Colleen G. Le Prell, the Emilie and Phil Schepps Professor of Hearing Science at the University of Texas at Dallas, who was not involved in the review.

“This systematic review highlights the very limited data on prevention of recreational music-induced hearing loss using earplugs,” Le Prell told Reuters Health by email.

“At younger ages, loud toys, firecrackers, loud video games, personal stereos or personal music players, lawnmowers or leaf blowers, sporting events or air shows, or other non-music events might be more likely noisy activities than music venue attendance,” Le Prell said. “A significant number of youth are also involved in target shooting activities, which children can get involved with through Boy Scouts or other organizations.”

For teens and young adults, repeat exposures to amplified music at clubs, concerts, festivals, or other related events may damage the inner ear and result in hearing loss, she said.

“Most concerts are both loud enough, and long enough, that they are likely to exceed the total daily exposure allowed by workplace safety regulations,” she said. “Sound exposure also commonly occurs via loud music delivered via personal listening devices, at sporting or other recreational events, and at jobs that involve lawn-mowing, use of power tools, or construction services.”

For workplace noise exposure, “we are not doing a very good job achieving correct and consistent use of hearing protection devices (HPD), including both ear plugs and ear muffs,” she said.

“In the United States, it is relatively uncommon for music venues to provide ear plugs at no charge,” Le Prell said. Even if they were provided, people may need to be educated in why using them is important and in how to use them correctly, she said.

“As a neurotologist, it really is upsetting to see these kids coming in younger and younger with a completely preventable hearing loss,” Derebery said.

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Faulty communications along U.S.-Mexico border are America’s blind spot

We all know that mission critical communications are vital 24 hours a day and as this article shows that even a tiny lapse in communications can lead to chaos. Even the U.S government can’t keep their radio communications up-to-date on one of the most watched borders in the world, as we can see from the article below.

Put yourself in the shoes of a U.S. Border Patrol Agent. You are patrolling the U.S.-Mexico border, driving through desolate terrain, and in the distance, you spot movement. You head toward a deep ravine and step out of your vehicle when a shot rings out and you hear the zip of a bullet speeding past your head. With training and instinct, you dive for cover and draw your weapon, reaching for your handheld radio.

And the radio doesn’t work.

There’s no one to call, because you are in one of the many areas of the southern U.S. border that has no radio coverage. Out there in the ravine is a drug cartel “rip crew,” heavily armed and firing on your position, bullets punching into your vehicle until smoke is rising from the hood. If they come closer, you are outnumbered. If they flee, your vehicle is disabled, and they will disappear into the vast emptiness along the southern border, where they will likely fire on one of your fellow agents, should they encounter them.

That is the state of communications along many of the areas on the U.S.-Mexico border. When the U.S. Border Patrol needs it the most, they cannot communicate with anyone. With rising threats and political propositions, U.S. border security has again risen to the top of the public consciousness. There are calls for more border patrol officers and stronger fencing, for aerial and ground based vehicles and other technology. But the lifeblood of the border security apparatus is communication, and in some areas, communication is not possible.

“If there is one thing in securing America’s borders that hasn’t changed since September 11, 2001, it’s the inability to resolve the communications lapses and gaps along the border,” said Ron Colburn, the former National Deputy Chief of the U.S. Border Patrol. “Here we are almost 15 years into this, and we still have not addressed this problem.”

One reason 343 New York City firefighters died when the World Trade Center buildings collapsed was that their radios could not communicate with the emergency responders outside the buildings, who were warning the structures were about to come down. The recommendations of the 9/11 Commission cited the need to create interoperable tools that allow first responders and law enforcement to communicate in the most unforgiving of environments.

And there are few environments less forgiving than the nearly 2000-miles of the U.S.-Mexico border.

Recognizing this, the Department of Homeland Security (DHS) launched a massive project to improve the communications capacity of officers along the U.S. border. It failed. In March last year, the U.S. Government Accountability Office (GAO) reported that $945 million in taxpayer funding used to build radio towers and upgrade radio equipment has yielded little benefit and in some cases does not work as well as what Border Patrol agents were using before. The effort cost too much and was taking too long.

Colburn said that the state of communications today means U.S. Border Patrol cannot call for support in some areas. They cannot feed information from the field into the intelligence food chain, and they cannot receive images from manned or unmanned vehicles to know whether they are walking into an ambush or encountering a group of friendly forces.

Likewise, Border Patrol agents cannot communicate easily with other law enforcement agencies (like a local Sheriff’s office), nor can those law enforcement agencies run on-site biometric checks (e.g., fingerprints) of individuals they suspect may have recently crossed into the United States illegally.

“I see it in the eyes and hear it in the voices of the men and women of the Border Patrol,” said Colburn. “They understand the mission and they want to accomplish it, but they feel like they have been abandoned.”

Answering the Unanswered Question

Most Americans own a smartphone, which is a powerful piece of technology. Experts say it’s hard to understand how, in this age of technological innovation and advancement, the United States is not arming its frontline officers with the very basic capacity to talk to one another.

Part of the challenge is that we have not brought new solutions to this long-standing problem.

To advance the effort, the Border Commerce and Security Council (of which I am Chairman and CEO) helped bring multiple stakeholders to the table in December last year in Cochise County, Arizona, to see if an innovative application of several integrated technologies could solve these communications challenges. It was a Proof of Concept test that included the U.S. Border Patrol, the Cochise County Sheriff’s Office and a group of businesses with tools that can address a range of communications and intelligence challenges. What was tested is called the Field Information Support Tool (FIST).

FIST started in 2006 as basic research at the Naval Postgraduate School (NPS). NPS Information Sciences Research Associate James Ehlert said in 2010 that the goal was to create “an easy-to-use, inexpensive hand-held solution to achieving communications interoperability and a common physical and human terrain operating picture for both on-the-ground field collectors and tactical decision makers.”

The research question was, how can we use modern technology to allow officers in the field to talk to one another and to their superiors while also collecting and then acting on real-time intelligence?

“The intelligence aspect is that the local and federal law enforcement officers need to look at things from a risk-management perspective,” said Brian Conroy, Business Strategy and Strategic Development Manager at NOVA Corporation, which works with Kestrel Technology Group, the company that has produced the FIST system. “They need to find the high-risk areas [along the border], and if you have a tool that collects data and runs algorithms against it, you can conduct risk assessment and trend analyses. Human intelligence contributes to a holistic common operating picture.”

This is what the FIST system achieves, and it’s what was seen during the proof of concept test. In general terms, FIST uses off-the-shelf communications tools (like an Android device) to gather intelligence from officers on the front lines. With these tools, officers feed information into a larger database compiled from a variety of sources (including other officers) that informs strategic and tactical decision making. This is then passed back to the people working along the border.

The need for this kind of tool is obvious, but it has only been recently that the right technologies and software were put together in a way that makes it possible.

Moving to the Market

Over the last year, there has been a push to transition FIST into the marketplace. Research transition is tough, as DHS has found in many cases over the years. Unlike other agencies and components, such as the military branches, the homeland security and law enforcement marketplace is heavily fragmented and with limited resources. It makes it difficult to take good, workable ideas from prototype to production. As big of a challenge as creating an innovative piece of technology is finding a way to produce it in line with operational and funding realities. A local Sheriff’s office, for example, does not have an endless amount of funding and time to bring in expensive technologies and then train deputies to use them. For that matter, neither does the U.S. Border Patrol.

What’s needed is a simpler, cheaper solution, and based on the proof of concept testing, FIST appears to be that solution.

“It’s ideal for smaller law enforcement agencies because it can unify operations and reporting and scale capability, creating a force multiplier,” said Ivan Cardenas, technical director of the Kestrel Technology Group, which is helping to bring FIST to market. “It is a sophisticated system, but it is easier to use than the complexity suggests.”

There are a few moving parts here. There are applications that allow off-the-shelf technologies to record and report intelligence, such as the location of a breach in the border fence or evidence of people moving through the rugged terrain. There are existing law enforcement and Border Patrol network capabilities (or cloud-based tools) that store that information. The secret sauce, however, is the complex digital architecture that allows real-time control and fusion of multiple information sources in a way that supports the mission. This is the one thing that has been missing from the border communications and intelligence efforts, and it’s why DHS has struggled to address the challenges to this point. The innovation is in the complexity, and FIST makes it simple.

Of course, that complex innovation is for naught if the agents in the field cannot transmit and receive intelligence. Enter SiRRAN Communications, another stakeholder at the proof of concept test in Arizona.

“We often forget that without network access, we’re blind,” said SiRRAN’s Director of Sales Mark Briggs. “Our technology brings that cell network to anywhere that it is needed.”

Briggs describes this technology as a portable, battery powered cell network—a network in a box. It creates a local, closed network that any agent within range can access to communicate and record intelligence. The unit provides local communication in areas where there is no coverage, and if there is no way to access the communications grid, it captures intelligence and transmits it to the larger repository as soon as it finds a signal.

The lesson here is not just that FIST is a workable system to satisfy the mission needs of America’s border security and law enforcement professionals. It’s also that the answer to the communications challenges along the border will not come in the form of $1 billion worth of cell towers built under DHS management. If it were, we would have solved this problem by now. The fact that we have not reveals that the ultimate solution is necessarily complex and multifaceted while also being easy to use and in-line with realistic operating budgets.

Perhaps the most important lesson, however, is that there are real tools that our Border Patrol and law enforcement officers could be using. Right now there are thousands of men and women on the border, and until we give them the tools they need to do their job, it will make border security and the safety of our frontline heroes difficult to sustain.

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Who Made the 1st 2 Way Radio: 1907- the 2000s: The Life of the 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.

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Different Types Of Two Way Radio Antennas

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.

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