Walkie Talkie History & Info


So i discovered this article on the web and i heard that just posting it as the whole piece isn’t a good thing, I got permission from the original writer and read up how to curate posts, so this is it…….i thought this was fascinating because it highlights some of the highs and lows that I encountered when i was working within the business.

The fist radio audio transmitter and receiver that was coined with the name Walkie Talkie was created by Motorola. The group involved created the Motorola SCR-300 using frequency modulation. This first revision was actually backpack mounted.

Not long afterward, during World War 2, Motorola produced what was called a Handie Talkie which rather confusingly is what we would now recognize as a Walkie Talkie. It had massively reduced performance, but was the first completely self contained handheld device.

There are 2-way long range walkie talkie radios that will provide long distance rage communication. Many will go as far as 12 miles. The most commonly used walkie talkie devices are the ones that are hand held and contain a button on the side that you push to speak. They are great and come in very handy for many things. They are often used while camping, hiking, shopping, home projects, and even in businesses like construction.

These walkie talkie devices provide a clear, easily accessible way to talk to someone who is not close enough to speak to face to face. Many of the two-way radios have clips and other accessories like 2-way radio headsets so that the radio can clip to your pant and allow for easy and simple access to the radio.

The transmission range that the companies typically promote is up to 20 miles although according to the terrain you would be lucky to actually reach a 2 mile limit. Being trained previously in electronics and radio in particular I find walkie talkies to be only as effective as a line of sight signal. If you encounter a hill or mountain you can just about be assured that you will not be able to communicate at all.

Understanding Wireless LAN networking


You are safe in the wisdom that I bring the best walkie talkie yang paling bagus posts, a number of which are my own a number of them are curated by me, if i choose to use someone elses writing it is because its important to my readership, so feel confident that you simply are reading the very best from my industry.

Understanding wireless and wireless LAN networking allow you to correctly plan should you require Radio Hire and design the effective deployment of wireless systems whether it is home-networking or using outside lengthy-range WLAN for rural internet connectivity.

Wireless networking enables computer systems and peripheral devices to speak using Kenwood radio waves transmissions instead of over conventional network cabling. Using wireless Ethernet adaptors, any device able to be utilized on a normal computer network could be utilized on the wireless connection for task varying from file and printer discussing to multimedia and access to the internet.

Wireless Ethernet Technologies are layed out by some standards known as IEEE 802.11. Although other wireless technologies and methods exist, the term wireless is usually utilized in mention of the the IEEE 802.11 standards.

The communication methods for wireless networking are based on the Institute of Domestic Electricians (IEEE) 802.11 standard, which includes the 802.11a, 802.11b and 802.11g methods (although other standards are happening). Probably the most broadly used of these is 802.11b (Wireless-B), that is more reliable compared to faster 802.11a (Wireless-A) standard, and it is more cost-effective to create and operate too. Wireless-G or 802.11g, is really a more recent protocol that’s increasingly broadly adopted by suppliers because it is able to accelerates to 54Mbps as opposed to the 11Mbps of 802.11b products.

It’s no more rare to locate products like a walkie talkie that support the 3 standards, but generally, Wireless-G is made to be backwards suitable for Wireless-B products. Thus Wireless-B and Wireless-A products won’t use each other, nor could they be suitable for Wireless-G products.

Some producers offer models with dual-band (Wireless A & G/B) auto-switch way of greater communication versatility. Network organizers can plan their network deployment using a mixture of Wireless-B,G or perhaps a.

Wireless 802.11 standard utilizes the license-free rf bands round the 2.4GHz and/or 5GHz ranges. The 802.11b and 802.11g methods make use of the 2.4GHz band whereas 802.11a uses the 5GHz band. Wireless-B is undoubtedly typically the most popular standard, using the more recent Wireless-G (802.11g) and Wireless-A (802.11a) closing in fast.

Wi-FI or Wireless Fidelity is really a certification program established through the Wi-Fi Alliance to make sure interoperability of wireless products. Initially, the word Wi-Fi was intended as interchangeable with 802.11b, but more lately it’s extended to pay for any 802.11 network.

WLAN or Wireless Lan, is really a computer network -or part thereof- that includes wireless products. Inside a WLAN network, a regular LAN set-up could be extended to incorporate wireless products utilizing an entry way. Although wireless systems could be completely separate from conventional network, WLAN usually forms part of the existing wired network.

Wireless Transmission ranges vary greatly and decreasing the bandwidth will raise the coverage area, a standard 802.11b or 802.11g device will routinely have a variety of about 30m indoor or more to 120m line-of-sight outdoors. The primary reason for that variance between inside and line-of-sight coverage is the fact that walls along with other objects do slow down the wireless signal. Because wireless transmissions are really low frequency radio waves, they’ll pass through walls along with other solid matter relatively simple. As distance increases, the throughput decreases. It is because lower signal strength lead to dropped packets and create a general reduction in network efficiency.

Comprehending the technology in wireless and wireless LAN/WAN networking enables the planner the versatility of utilizing wired and wireless systems. You will find areas that wired systems can’t go because of distance, terrain or topography thus when the planner has understanding on wireless LAN networking, the more, faster and simple it’s to deploy a highly effective wireless network.

Focusing on how wireless LAN works will even assist you to plan deployment of the rural wi-fi access service. Wireless LAN is an extremely cost-effective solution for necessary internet connectivity needs in far, remote towns. WISP is a great and potential business in remote areas.

Either you utilize commercial “off-the-shelf” WLAN gadget, tweak and improve its performance by utilizing greater-gain outside antenna or purchase a true-outside lengthy-range Wireless LAN. For assured network performance, service-quality and fewer network down time, we advise while using latter.

How To Improve Your Activism and Community With 2 way radios


You’ve probably stumbled upon this looking for information about communication devices for restaurants’s, hopefully this will help you answer some of those questions, if not please click on one of the relevant links within the article

two way radio app for iphoneWhy do government agents use two way radios? Because they work! One of the most useful tools I’ve ever purchased, is my handheld 2 Way Radio. I had first bought a couple of them when I was living in New York and was going kind of crazy with the whole prepper thing. I quickly realized they were basically useless because I didn’t know anybody else with a two way radio.

That all changed when I got to Keene, New Hampshire, and saw how powerful these devices could be. They were mostly using marine band VHF radios at the time, and I realized I could tune my VHF radio into those frequencies. The libertarian community there uses these radios regularly, along with a group text messaging system they call “Keene 411?. The ability to instantly communicate with other activists proved to be very useful, and built a sense of community and comradery that I have yet to see elsewhere.

They have become so effective at “Robin Hooding” that parking enforcers actually run away from them. They use the radios to track down the parking enforcers, and alert other activists to their location, so they can put coins in parking meters before the meter maid can write a ticket. Additionally, if someone is pulled over, or otherwise harassed by government agents (or anyone else for that matter) you can simply radio for help, and activists will show up with cameras.

At its most basic level, this is so easy to replicate, it’s a wonder more people haven’t already done it. Just buy a radio for yourself, and encourage a neighbor to do the same, agree on a frequency/channel, and talk. The most difficult part is getting people to buy the radios and monitor them on a regular basis. Once they are in regular use however, once people see their friends using the radios, everybody is going to want one, and they will become a regular part of your daily life.

The question everybody jumps to, is range. “How far can these radios communicate?”. There’s no easy answer to that question. It depends on frequency, transmit power, interference, topography, antenna type, antenna height, construction, trees, the curvature of the earth, weather, and more variables than I care to list. There’s a website that can help you estimate the potential distance of your transmission, called CloudRF. They also make a very useful android app called RFSignal, which I have purchased. This is more for repeaters and towers though, we’ll talk about repeaters later.

If you go to Target/Best Buy/Walmart and buy a walkie talkie, it’s probably a 22 channel GMRS/FRS radio. This stands for General Mobile Radio Service and Family Radio service, respectively. They will tell you that the radios have a maximum distance of 2 to 50 miles, and that’s almost complete nonsense. Unless you have line of sight, as in, no obstacles between you and the person you’re communicating with, these radios will not communicate very far at all. I’ve tried to use them on job sites, and been unable to communicate with coworkers inside the same building.

FRS legally requires no license, is limited to 500 miliwatts, and must have a fixed antenna.

GMRS legally requires an FCC license, which you can purchase for $85, but there is next to zero enforcement on this, and the FCC has proposed to remove the licensing requirement. With an FCC license, you can legally transmit on these frequencies at up to 50 watts, and use pretty much any antenna you like, so long as the antenna is not more than 20 feet above the ground, or above the tree to which the antenna is mounted.

This just in… As I was writing this article, and browsing the FCC website for regulatory information, they shut down the website, because of the government shutdown. Now, they haven’t actually gone dark, they just put this silly message on their site. “We regret the disruption, but during the Federal Government-wide shutdown, the FCC is limited to performing duties that are immediately necessary for the safety of life or the protection of property. FCC online systems will not be available until further notice.”

The funny thing is, for that message to display, they have to keep their servers up and running, which is what incurs the expense. They just made their content unavailable, I guess to “punish” us for not going along with their incessant demands for greater and greater funding. How childish… Good thing I have absolutely no intention of complying with any FCC regulations, shutdown or no shutdown.

In any case, the 2 Way Radios that you buy in retail stores, while they are capable of communicating on GMRS frequencies, do so under FRS standards. They are half watt radios with fixed antennas, even if you buy a “high power” radio, they usually only transmit at one watt. The upside to these devices is, they are widely available, many people already have them. The downside is, they don’t communicate very far, and some of them can be very expensive.

The other type of hand held radio you can buy in some stores is a marine band radio. These are usually 5 watt radios, and will communicate much further than the FRS/GMRS radios. The downside is, these are illegal to use on land, and very few people have them. You also might run into a lot of interference if you live near the water, as I do when I’m in New York, and these radios don’t use privacy codes. You can also buy a more high power marine band radio for your home or vehicle, but these will often cost upwards of $200, and transmit at 25 watts.

The ultimate answer, for handhelds, is to buy an open dual band hand held two way radio. I have two of these, a Baofeng UV5R, and a Puxing PX-888k.

These radios transmit at 5 watts on the VHF frequencies, and 4 watts on UHF. You can tune them into the GMRS frequencies, or marine band frequencies. They can use privacy codes to eliminate interference from other radios in the area. They can also use repeaters, which the retail radios cannot.

I prefer the Puxing to the Baofeng, it has some extra features like voice scrambler, the belt clip is also more sturdy, and the newer ones can act as a cross band repeater. The Baofeng however, is a lot cheaper, about half the price.

Either one will suit your purposes just fine. Yes, these are affiliate links, I get paid if you buy them from here. But that’s not my motivation for displaying them, I really want more people using these radios. The more of us who have them, the more useful they are.

Once you have the radios, you can manually tune to the frequency you want to use, or you can program in channels. To program channels using a computer you will need a special programming cable, and programming software. The software is free. You can download the Puxing programming software here (Just find your model number). You can download the Baofeng programming software here. Below you will find a link to the programming cable, unless you’re using an ad blocking plugin for your browser, in which case, buzz off. This cable will work for both of these radios, and many others as well.

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The Crazy Days of 2 way radio


My basic review of a new article it starts up well, looks pretty awesome, is simple to run and really power resourceful, the 2 way radio on cruise ships really is a fine product. I’m happy I purchased it, read further below.

During the great citizen’s band or CB radio craze of the late 1970s, it seemed like everyone had to have a CB radio and talk like a truck drive while driving down the highway.

CB radio is an unlicensed local radio service for individuals and small businesses. CB radios are quite inexpensive and can be very handy.

As you might expect, filmmakers and entertainers use a fair amount of artistic license in their portrayal of CB activities. If you start off your CB career with unrealistic expectations, you’re bound to be disappointed so let’s begin with the basics. CB radio was created in the 1950s by the FCC in and effort to encourage citizen’s to use the new radio technology.

The CB service provides individuals and small businesses with a low-cost way to stay in touch and coordinate their day-to-day activities up to a 5 or 10 mile range. If this sounds like what you need, CB might be just what you’re looking for.

Many two-way radio services require you to purchase a license from the FCC. The CB radio service isn’t one of them. The FCC does have some rules that you should follow though. You can find the rules tucked into the operating manual of your radio. You can also download them on the Internet.

The rules are easy to read and are organized as a list of common questions. They include technical rules about radios and antennas as well as what you can and can’t do on the air.

What you can’t do is fairly straightforward and laid out clearly in CB rule 13. You can’t advertise materials for sale or a political campaign, cuss, play music, or rebroadcast radio or TV programming. You’re also forbidden to intentionally interfere with other stations and make false transmissions particularly distress calls.

Each CB The radio can operate on any of 40 channels centered on frequencies from 26.965 to 27.405 MHz. This frequency range is near the upper limit of the traditional shortwave or HF band tucked in between the Amateur Radio 10-meter band and a band used by business radios.

You can operate in regular AM mode or select either upper or lower sideband a variation of AM discussed later in this chapter. That gives you 120 different choices about where to operate.

By far, the most popular use of CB radio today is in vehicles. Using CB for business-to-business communications is less common than it was in the halcyon days of CB radio but farms, towing companies, local delivery services, taxis, and other mobile users still find CB radios very useful.

Professional drivers use CB radio for everything from keeping an eye on speed traps to checking in at the delivery dock and making idle conversation with anyone in range. Right behind the professionals are private citizens who use CB radio when they drive for many of the same reasons.

Motorola Lobbies Its Way to Telecom Supremacy


What would you do if i said I had found a 2 way radio kamloops piece that is not only fascinating but educational also? I knew you would not believe me, so here it is the informative, superb and appealing article

two way radio intercomAt the eastern end of the San Francisco Bay Area, Sheriff Warren Rupf of Contra Costa County and cigar-chomping Sheriff Charlie Plummer of neighboring Alameda County were political powerhouses seemingly locked in an endless duel of one-upmanship.

When Rupf set up a marine patrol, Plummer started buying boats. They echoed each other with helicopters, SWAT teams, and on it went.

But in 2005, amid a federal push to avoid another communications nightmare like the one blamed for the Sept. 11, 2001, deaths of 125 New York firefighters at the collapsed World Trade Center, Rupf and Plummer joined forces. They set their sights on a new digital two-way radio system so that all of their first responders could talk to each other.

There was, however, a catch.

A notice circulated by Alameda County to gauge vendors interest in the project said that the first $5.7 million phase must include a master controller made by Motorola Inc., and the equipment must connect with the countys aged, proprietary Motorola SmartNet II system.

In other words, it was already a done deal. Nobody else could make their equipment compatible with soon-to-be-obsolete Motorola equipment nobody except Motorola, said Steve Overacker, who was Contra Costa Countys telecommunications manager at the time.

Any appearance that there would be a fair, competitive bidding process was a ruse, he said in a phone interview.

Chalk up another contract win for the Schaumburg, Ill.-based Goliath of the public safety communications industry, a company that for decades has ruled a market financed entirely by taxpayers and now totaling billions of dollars a year. For Motorola Solutions Inc., as it has been known since 2011, the value of this California contract would snowball toward $100 million.

Such outcomes have come to be expected for the company that has long led the way in Walkie Talkie technology, even as the nation went on a post-9/11 spending binge on emergency communication. However, a seven-month McClatchy investigation found that, in one region after another, city, county and state officials also have favored Motorola, helping the firm secure an estimated 80 percent of all the emergency telecommunications business in America.

From the nations capital to the Pacific Coast, government officials have handed the company noncompetitive contracts, used modifications of years-old contracts to acquire new systems or crafted bid specifications to Motorolas advantage. These officials, perhaps without recognizing their collective role, have helped stunt the very competition thats needed to hold down prices and assure the most efficient use of government dollars.

The companys contract wins have been clouded by irregularities or allegations of government favoritism in Chicago, Dallas, the San Francisco Bay Area and on statewide systems in Illinois, Iowa, Kansas and Washington, to name a few. Losing bidders often have been left chafing with the belief that they werent playing on a level field.

Kansas officials bypassed state competitive bidding requirements in 2005 with an unusual modification of a 1991 contract with Motorola one providing for a new, $50 million digital system. State officials defended their action by arguing that competitive bids were taken on the original system 14 years earlier.

In Chicago, Motorolas backyard, city officials justified a noncompetitive, $23 million contract on grounds it would protect a $2 million investment in proprietary Motorola equipment, when the equipments actual value was $350,000, the citys inspector general found.

In Dallas, where Motorola has won a contract for a new digital network, the company has been snarled in controversy twice in recent years over the way its met city requirements for use of minority subcontractors, because most of the money flowed back to Motorola. City officials declined to release the contract documents, forwarding a Justice Department letter stating that to do so would interfere with an FBI investigation into possible public corruption, tax evasion and money laundering.

Between 2009 and 2011, the state of Iowa issued five solicitations for radio bid prices that each favored Motorola, one requiring that two knobs on the radios be exactly 19 millimeters apart a parameter fitting only a Motorola radio, The Des Moines Register first reported.

Michael Miller, whose Marshalltown, Iowa, radio dealership represents competing companies, said he concluded that somebody wants Motorola to win it.

In a weakly policed but humongous patchwork of as many as 20,000 city, county, state and federal two-way radio networks, governments have paid as much as $7,500 apiece for Motorola models, when some competitors offered products meeting the same specifications for a fraction of its prices. In Europe, albeit with a lower-power network that requires more costly towers and infrastructure, police radios serving the same functions sell for $500 to $700.

While our public safety people do an extraordinary job in protecting the public, I am not impressed with the choices theyve made relative to technology, said veteran Democratic Rep. Anna Eshoo of California, who represents part of Silicon Valley and has for years monitored Motorolas dominance with chagrin.

In a phone interview, she called radio prices of $5,000 and above ludicrous.

Motorola Solutions declined to make its chief executive, Gregory Brown, available for an interview or to respond to detailed questions submitted by McClatchy.

Instead, Motorola issued a statement saying that it has developed state-of-the-art technology to support the challenging and demanding missions of public safety for more than 80 years.

Customers choose Motorola because we have remained committed to serving these dedicated professionals by closely listening to them and responding with innovative solutions that meet their needs, it said.

Ever since the Sept. 11 commission recommended in 2004 that the nations public safety community adopt measures to improve interoperability a buzzword meaning that all radios must interact, no matter their manufacturer the nation has spent tens of billions of dollars toward that end.

Nearly a decade later, radio connections have improved New Yorks networks, for example, performed well after Hurricane Sandy in 2012. But the U.S. Department of Homeland Security says there are still too many weak signals and agencies still use too many fragmented frequencies. The push to resolve such issues with competitively priced upgrades has moved at a snails pace.

McClatchys investigation found that:

? Even after uniform design standards for two-way radios took hold in 2005, Motorola found ways to elbow rivals out of some markets by peddling proprietary extras that dont interact with non-Motorola radios, such as special encryption software sold for a few dollars per radio in states including Colorado, Louisiana and Kansas.

? Many cities and counties have awarded Motorola sole-source contracts by using so-called cooperative contracts, in which they piggyback on deals that Motorola won competitively elsewhere. In 2011, financially distressed Forth Worth, Texas, and Washington, D.C., each handed Motorola a $50 million deal by adopting pricing from a Houston-Galveston area regional contract. Fort Worth officials say they also negotiated an additional 34 percent discount on radio prices, but the District of Columbia did not, paying as much as $5,700 per radio.

? Auditors who track the use of grants from the Department of Homeland Security and other agencies have given little scrutiny to the behavior of state and local officials who tilt procurements toward Motorola, including those who ignore requirements that its radios fully interact with other brands.

? Motorola has cultivated cozy relationships with police and fire chiefs, its biggest customers, donating more than $25 million to public safety-related foundations over the last six years and bankrolling a key public safety coalition to which police and fire chiefs belong. Motorola sales representatives also coach public safety agencies in how to secure federal grants.

Motorolas rugged two-way radios, able to survive a dropped bowling ball or submersion in a tank of water, have for decades set the standard for performance in the emergency communications market. Youll never get fired for buying Motorola, goes the saying.

The company usually has held a technological edge over competitors, even if its digital radios were plagued by some of the same failures as its rivals in recent years glitches blamed for contributing to the deaths of at least five firefighters nationwide.

Motorolas relentless campaign to preserve its huge market share, aided by public officials, has not been without consequences for the nation. With competition stifled, industry officials say such high prices have almost assuredly saddled taxpayers with hundreds of millions, and perhaps more, in added costs.

In addition, the companys long-standing marketing of proprietary features in its systems has clashed head-on with the national goal of interoperability. It got so bad that fire commanders in some cities carried multiple radios to multi-alarm blazes to ensure they could talk with every unit dispatched to the scene.

John Powell, a former chairman of a National Public Safety Telecommunications Council panel on the subject, said that even today weve got these systems going in with federal grant dollars that are really being a detriment to interoperability, because they dont comply with Homeland Security guidelines dating to 2006 that require recipients to buy radios that meet uniform design standards.

Powell criticized federal agencies for failing to put enough teeth in those grant guidance documents to ensure against proprietary features, such as Motorolas encryption. He said that federal agency watchdogs have performed few compliance audits of state and local agencies.

To examine Motorolas dominance and the resulting effects, McClatchy reviewed thousands of pages of public records and conducted more than 100 interviews with officials from contracting offices, information technology units, police and fire departments, standards-setting agencies, as well as lobbyists and politicians.

In addition, McClatchy surveyed nearly 60 police, fire and sheriffs departments in the nations 20 largest cities. Only San Antonio and the New York Police Department have bought large radio systems from a vendor other than Motorola over the last decade. In nine of the cities, Motorola won noncompetitive contracts, though some local and state governments have begun offering their agencies a choice of radios from multiple qualifying vendors.

Statewide systems have traditionally served highway patrols and other state agencies, but amid the push for interoperability, many states are courting cities and counties to join. In that lucrative market, Motorolas largest competitor, Florida-based Harris Corp., and companies it acquired have constructed five statewide systems. The smaller EF Johnson Technologies Inc., based outside of Fort Worth, Texas, has assembled one. Motorola has apparently built all of the others.

It is rare that a single company wields such power over a multibillion-dollar industry, especially one financed solely by taxpayers.

Motorola is, in practical terms, a monopoly, and they control the market for the purpose of keeping the pricing very high, said Jose Martin, president of Power Trunk, a subsidiary of a Spanish firm, Teltronic, which is trying to break into the U.S. public safety radio market.

Motorola stressed in its statement that it was an early participant in the 25-year-old industry-government effort to develop design standards, known as Project 25, or P25, that are supposed to open competition to all comers.

Martin, however, has a quite different view. He contended that Motorola pushed for P25 standards so that the United States wouldnt fall under Europes similar uniform manufacturing standard for emergency radios, known as Terrestrial Trunked Radio, or Tetra, which Motorola was a leader in drafting in the early 1990s.

As a result, Martin said, U.S. taxpayers are being exfoliated.

In a 2011 report, Congress investigative arm, the Government Accountability Office, warned that government agencies may be overpaying for radios because they lack buying power in relationship to device manufacturers.

California Rep. Eshoo said that Motorolas grip on the radio market was a big reason behind her decision to co-author legislation enacted two years ago that allotted $7 billion for a nationwide, next-generation emergency data-delivery network that she believes will invigorate competition.

If that so-called broadband network someday reliably transmits voice communications, it would represent a huge threat to Motorola Solutions radio franchise, pitting the company against much bigger broadband giants such as Verizon and AT&T.

Motorola apparently has pushed back hard enough against the Commerce Departments new unit, known as FirstNet, which is overseeing the new network, to draw a public scolding from Senate Commerce Committee Chairman Jay Rockefeller, D-W.Va. Rockefeller lamented published reports that the company has secretly lobbied against the new network. Motorola insists that it supports the broadband network.

As the pioneer of two-way radios, Motorola is a proud company that portrays itself as a champion of a special class of 4 million Americans willing to risk their lives whenever they don their uniforms.

Admirers say that no company can match Motorolas investment in producing radio products that first responders can trust while ducking gunfire or in the intense heat of a multi-alarm fire.

It was Motorola that invented the first police radio in 1930 and the first walkie-talkie during World War II. It was Motorola that first identified the potential of the public safety communications market. By the 1980s, Soviet Premier Mikhail Gorbachevs huddle of security guards toted Motorola radios.

Motorola representatives play active roles in communities, sit on the boards of public safety nonprofits and answer questions about radio systems at government meetings.

The company has maintained a huge reservoir of support among emergency employees across the country, undiminished by the radio failures of Sept. 11, 2001, and more recent allegations that it marketed flawed digital radios.

After terrorists flew airliners into the World Trade Center, New York firefighters raced to the burning twin towers carrying the same Motorola Saber I radios that had failed them following an al-Qaida bombing of the Trade Center eight years earlier, according to Radio Silence F.D.N.Y: The Betrayal of New Yorks Bravest, a book co-authored by John Joyce, a New York Fire Department battalion commander.

Firefighters in the Trade Centers north tower never heard an evacuation order from the lobby because the radios didnt function well in the brick-and-steel stairways, Joyce and co-author Bill Bowen wrote. New digital-capable radios that Motorola had recently sold the fire department lay in a warehouse, because they hadnt worked properly.

Motorola executives responded with their own form of triage.

Within hours of the planes hitting the twin towers and the Pentagon outside Washington, the company sent eastward 13 semi-trailer trucks packed with radios, extra batteries, charging stations, base stations, motor generator units anything first responders might need to communicate during the search for survivors.

The New York Fire Department still uses Motorola radios.

More recently, Motorolas digital handsets and those of its competitors have sometimes dropped calls during peak use or failed to penetrate brick or steel walls.

During the recent Navy Yard shootings in the nations capital, digital handsets made by Motorolas former rival MA/Com couldnt penetrate the thick walls, complicating rescue efforts. Failures of Motorola handsets in recent years were blamed in part for two firefighter deaths in Philadelphia, two in Cincinnati and one in Prince William County, Va. The radios flaws produced enough anxiety to prompt the launch of a watchdog Internet site, where firefighters anonymously reported hundreds of near misses.

The problems have diminished with improvements to the radios microphones and signals. Nonetheless, Jeff Caynon, the president of Houstons firefighters union, said problems continue. The citys new $132 million Motorola system forced rescuers to resort to using hand and arm signals and cellphones as a reliable way to communicate during a blaze in May 2013.

Community radio to take care of consumer complaints in Mewat


communication device for cerebral palsyWhat is your favorite feature of my 2 way radio+noise cancelling headset? In my opinion, I much like the design job – It is cooler than an Inuit’s underpants!

One of the country’ most backward districts, Mewat in Haryana will get India’s first community radio based consumer helpline on Wednesday. This helpline will be managed by Mewat based community radio station, Radio Mewat.

According to an official statement, the consumer helpline on community Radio is an innovation to raise awareness among consumers in a community. The listeners can call the radio’s helpline number and leave a message, talk to a radio reporter or even come on live with their complaint.

Consumer affairs ministry officials said that Radio Mewat will document the cases and will pass them on to agencies that can sort out the grievances. The department claimed that over five lakh people will be able to take advantage of the helpline by calling the number 8685904904.

The radio will also commit a 30 minute slot to a consumer rights’ program where consumers will have a live show to discuss problems. Major issues such as sale of expired goods particularly medicines, sale of goods without bills, misleading advertisements etc. will be taken up during this particular segment.

The radio-mode to address consumers’ issues has huge significance since literacy rate in this region is low and there is no mechanism that illiterate consumers can use to address their grievances.

Walkie Talkies


Some of the pro writers on the net are at a really top level that i wonder if any of them have ever written a paperback? so occasionally i like to highlight these exceptional content pieces and here is one i found interesting the other day.

communication device strokeA 2 way radio is really a device which sends and receives voice signals with the air. They work somewhat just like a telephone, consider they don’t need a central network they may be used anywhere! With two-way radios, several people may have a discussion wherever they’re — sometimes while they’re miles apart! Another common title for any two-way radio is really a “radioInch.

The most typical kind of 2 Way Radio for normal customers may be the FRS/GMRS two-way radio. Fundamental essentials radios that you simply typically see within the large-box stores. FRS and GMRS would be the different frequency ranges, or channels, these radios can work on meaning that Motorola CP040 . The FRS channels are 8 though 14 and also the GMRS channels are 15-22. Channels 1 through 7 are shared, and therefore are utilized by both FRS and GMRS systems.

All radios inside your group will require to become set towards the same funnel before you communicate. For instance, in case your radio is placed to funnel 7 it’ll send your voice-over that funnel whenever you talk, and it’ll listen for and permit you to hear others speaking on funnel 7. It is usually remember this these channels are public! Continually be careful that which you say on the two-way radio, since you can not be sure who’s listening.

When selecting a funnel, privacy and range ought to be most of your concerns so you could think about things like a two way radio meaning that people will understand this. If you work with a FRS only funnel, due to government rules your radio is only going to broadcast at no more than .5 w of energy. This wattage will typically enable you to get between half miles, and something mile of range. If utilizing a GMRS funnel, you will get the utmost output energy and range from your two-way radio. However, if you work with a GMRS funnel, you’re needed through the FCC to buy permission to function on individuals wavelengths which you might then need to think about things like a walkie talkie as a form of two way radio.

So far as privacy goes, when you purchase a funnel and see that you will find others utilizing the same funnel, you should switch to a new funnel to prevent confusion. Sometimes, for example in a crowed theme park, 22 channels just aren’t enough to provide privacy. Due to this, most mid-range radios or more also provide “Privacy Codes,” which split up just one funnel into anywhere between 38 and 121 sub-channels. Whenever you estimate the privacy codes, many radios offer over 1000 individual channels that you should select from.

Securing your Wireless LAN


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It is common practice to deploy wireless systems and walkie talkies for convenience programs needing customers to become mobile. Also many “road players” have Wi-Fi accounts that allow them to access the web and also the corporate network from remote locations. In addition, many deploy Wi-Fi in your own home to prevent the down sides of wiring the house. But because wireless systems operate by broadcasting an invisible signal between nodes, they’re especially susceptible to cyber-terrorist and abuse.

Wired equivalent privacy (WEP) has been utilized previously to secure wireless LANs. However, WEP has significant weak points, most particularly it uses file encryption secrets which are both static and known by stations over the network, also it utilizes a weak implementation from the file encryption formula. Thus, it is crucial that wireless systems AND Motorola CP040 two way radio be protected through the new generation of security measures available these days.

Advanced Wireless Security Measures

IT personnel have many available alternatives to create their wireless systems safer compared to what they are utilizing WEP:

. The Wi-Fi Alliance is promoting Wi-Fi Protected Access (WPA), which is really a standards-based security technology in line with the IEEE 802.1X standard. It’s free and included in both Home windows XP and Macs OS/X. Any equipment using the Wi-Fi Alliance sticker is assured to aid WPA. WPA2, applying IEEE 802.11i, continues to be launched, so customers of WPA should intend on a migration as equipment while using new standard becomes available.
Separating the wireless network on the private LAN is definitely an choice for individuals who choose the safety of Virtual Private Systems (VPNs). IPSec (IP Security) can be obtained being an even more powerful alternative to WPA and WPA2. IPSec props up secure exchange of packets in the IP layer and it has been used broadly to employ VPNs. Although a less secure VPN option than IPSec, Point-to-Point Tunneling Protocol (PPTP) could be layered over WEP to supply authentication an additional layer of file encryption being an choice for individuals who require support for older laptop systems. Whatever option would be used, you have to make sure road players always access corporate assets over connections which are protected using strong file encryption, either using a VPN or using SSL-enabled web pages.
Separating clients by stopping them from speaking to 1 another around the wireless network is definitely an option which prevents wireless cyber-terrorist from attacking other customers. This is particularly helpful in public places wireless systems, and client isolation is a very common feature within the more advanced wireless access points and hotspot kits.
Controlling accessibility wireless network whilst enabling access for visitors is frequently an issue. Many wireless products support guest access by segregating unauthenticated customers inside a separate virtual LAN aside from the organization network. You may even wish to impose an easy firewall that supports web authentication.
Accessibility wireless network may also be limited to machines whose MAC addresses match addresses with an approved list. Their email list could be either static or saved on the RADIUS server for look-up.
Finally, the majority of the more sophisticated access points have adjustable signal talents, different from merely a couple of milliwatts as much as hundreds of milliwatts. Different the signal strength can prevent signal from seeping from the building to surrounding structures and parking lots, and may prevent eavesdroppers from obtaining the wireless signal while relaxing in their automobiles or inside a nearby building.


Items are increasingly being offered which will make available commercial implementations of recent standards in wireless network security. Complications can arise when attempting to integrate new equipment and standards with legacy systems, however in many cases suppliers have covered such deployment situations. With one of these new items and also the standards they implement, your wireless network may be a minimum of as secure as the wire-based network.