To put it simply, a two way radio similar to that sold by 2wayradionline.co.uk
is a device that can both receive and transmit voice messages. In broader terms, it can be said that most wireless communication, and it may include cellular systems, fall under the definition. However, these days, 2 way radio is a term to describe radio system for group call communication. The two way radio comes in several technical names such as Public Access Mobile Radio, Private Mobile Radio, Land Mobile Radio and Professional Mobile Radio. These present times, 2 way radios are often called "walkie talkies". There are several kinds of two way radio systems and some are able to make use of base and mobile configuration, while some re able to utilize a radio network infrastructure.
A typical 2 way radio includes a PTT button, also known as Push-To-Talk button. The button activates the transmitter and the user simply needs to talk to the device to start communicating. The user must release the PTT button in order to receive transmissions from the other line.
A two way radio is able to communicate with other radio devices. However, direct radio communication has very limited range. To overcome the problem, a radio network infrastructure may be used to extend the range of communications. The rest of the article is going to cover more details about how 2 way radios work and other useful information.
Receiving Radio Waves
Just like other forms of Wireless communications, a 2 way radio sends messages over the air. In order to achieve this, the antenna of a way radio contains a specific set of electrons. If the two way radio features multiple channels, then there is specific sets of electrons are each channel. Whenever a radio transmission is received by the 2 way radio, the electrons get excited. The electrons then create electrical impulses. Electrical impulses are then sent to a small processor, which will then convert the electrical impulses to words and sounds that can be understood by humans. The sounds are produced by the speakers within that the way radio.
Keep in mind that there are always radio waves
are floating in the air. Because of it, there is always a nondescript sound that may be produced by the two way radios. To solve the issue, a lot of 2 way radios feature a "squelch" setting; and with it, the user can adjust the signal threshold for clearer communications.
Two way radios can also send messages across the air. The main idea is to convert the sound to radio waves. However, the defining characteristic about the way radio is its ability the convert back the radio waves back to legible sounds.
Whenever a user speaks into a 2 way radio, a membrane within the device will vibrate as a response to the sounds. The vibrations are sent to the processor, which in turn converts them to electrical impulses and readies it for transmission.. Finally, the transmission is sent to the antenna which is then broadcasted in the form of radio waves. These radio waves are then received by another device and convert them back to a legible sound.
As two way radios are getting more and more popular, it is possible for more than one party communicating in the same line or frequency. This can cause a lot of confusion and interference. To solve the problem, modern 2 way radios are able to utilize multiple channels.
For a two way radio to broadcast on multiple channels, the device must be able to generate radio waves in multiple frequencies. Furthermore, the device must be able to send frequencies with very little fluctuations. These fluctuations are actually caused by the transmitted voices. The fluctuations can be minimized through “frequency modulation”. The modulated transmissions are then sent to the device’s antenna.
The device must also excite the proper electrons. Once the proper electrons are excited, an outgoing radio wave is then produced.
These radio waves may be picked up by another device tuning into the same frequency. Furthermore, the device must be within range of the transmitting device. The range of two way radio is usually determined by a couple of factors such as atmospheric conditions, radio’s battery power and the size of the two-radio's antenna.
Whenever a device picks up the transmission, the receiving radio must filter the signals through an electronic filter known as a bandpass filter. Finally, the transmission is then converted back to sound.
Why Choose A 2 Way Radio
The two way radio is one of the earliest forms of wireless communication. However, in today's modernized communication environment, a question arises - is the way radio a viable technology? The answer to that question is a yes. This is because the 2 way radio has its own unique advantages that may not be found in other forms of wireless communications. Below are two of them:
Instant Communication - the ability to communicate between two or more parties almost instantly is one of the most defining advantages of the two way radio. A user only needs to press the “Push-To-Talk” button and within seconds a receiver will be able to receive the audio messages. Furthermore, the entire system is set up around the idea of "quick call" and "quick receive". This is the main reason why the organizations rely on the 2 way radio technology for operational and tactical communications. The system can also make use of encryption technology for a more secure communication.
Another unique advantage of two way radio is its ability to facilitate "group call" or "one-to-many" communications very efficiently. By efficient, it means that the user can communicate with one, hundreds or thousands at the same time. There is no need for a user to repeat the same message if he/she needs to communicate to more than one individual.
A 2 way radio is one of the earliest technologies used for wireless communications. Even though it is a bit outdated compared to other forms of wireless communications, but the usefulness is still very applicable today. The main idea of how 2 way radios work revolves around on sending and receiving radio waves, which in turn is converted to legible sounds. The idea and technology behind two way radio may be simple, but nevertheless it is still a very well-used form of communication in today’s world.
For most people, clarity of sound when using their radios is very important. Only through clear sound will you be able to receive and understand the message being conveyed. For proper sound, you might consider using a good set of earpiece. Motorola radio earpiece is the ear piece to go for. This earpiece has been made using the latest technology to ensure you enjoy top quality sound. Additionally, the huge popularity of the gadget is more than enough proof of its reliability and exceptional performance.
How to choose the ideal earpiece
There are numerous brands of earpiece flooding the market. This makes it hard trying to choose the best earpiece. However, it is very much possible settling for the best
. This is possible only if you put a few factors into consideration. Some of the things to note include:
• Cost. You certainly do not expect to spend a lot on this gadget. As much as you do not want to spend much, it is important that you consider the price. Ensure that you go for something that has a reasonable price. This will ensure that you get what you are looking for plus full value for your money.
• Quality. Price will certainly dictate quality. Quality earpieces produce clear sound. Additionally, quality means that the earpieces are durable and can endure any type of conditions.
• Brand name. The brand name on the earpiece is also very important. Therefore, ensure that you only go for a gadget that has been manufactured by an experienced company.
• Reviews. You might want to seek the opinion of people who have used the brand that you want to go for. This will ensure that you get an overview of the product you want to purchase.
Motorola radio earpiece will definitely meet and surpass the requirements of any customer.
Why you need to chose Motorola radio earpiece
By choosing the earpiece from technology giants Motorola
, you are assured of leaping numerous benefits. Additionally, the fact that the earpiece is widely used is more than enough proof of its reliability. The gadget has also undergone testing and has been proven fit for use. Some of the advantages of choosing Motorola earpiece are:
• Affordable. This gadget is offered at a very pocket friendly price. This is meant to ensure that anyone despite class or status can afford to receive the best sound from their radios.
• Quality. This is a high quality gadget that gives an outstanding performance. The sound produced is of high quality and crystal clear. This does not pose a threat to the well being of your ears. This makes the earpiece very reliable.
• Durability. The material used in manufacturing the earpiece will ensure that it serves you for long. Additionally, the earpiece is able to withstand any condition without wearing out.
• Widely used. The wide use of this radio earpiece is more than enough assurance that you are purchasing a high quality product.
• Ideal for privacy. At times you might require taking a message discreetly. The Motorola radio earpiece will ensure that you receive the message in a clear manner.
• Striking features. The 3.5 mm jack makes it possible for you to use the earpiece with different gadgets. The earpiece is also built to enhance comfort while using it. It is compatible with: DP2400, DP3400, GP340 and CP040.
Where to purchase the earpiece
With the rise in counterfeit products, it is surely a hard task finding original products. Therefore, ensure you exercise a lot of caution when shopping for the gadget. This is a move bent at ensuring you do not make a purchase that you will later regret. Beware of con artists who are out there to make a kill out of your hard earned cash. Ensure you only purchase this gadget from a trusted dealer. Additionally, the earpiece is available in various online stores. Also, ensure you purchase from a reputable online store. This will ensure that you only purchase an original product that will diligently serve you.
It is time you received messages with a lot of clarity. This is only possible if you choose the appropriate set of earpiece. If you were wondering the ideal type of earpiece to go for, you now know better. Motorola 2 way radio earpiece is surely the choice to make.
Kenwood radios are the second most popular radio on the market, with hundreds of different versions. The fundamental types used on these radios are the 2-pin connector and the multi-pin connector. The two pin model features two connector pins and the multi-pin model features multiple pins. Any difference in performance is a matter of customer discretion.
The 2-pin connector’s earpiece features an in-line PTT (push-to-talk) button and a built-in microphone. It also has a surveillance audio tube and comes complete with a clothing clip. This Kenwood earpiece is available for just over £22 (including shipping and handling fees).
The multi-pin connected earpiece is a different type of connector entirely. However, the earpiece is the same, as it also features an in-line PTT button, a built-in microphone, surveillance tube and clothing clip. The cost is the same as the 2-pin version.
Both types of Kenwood earpiece can be upgraded by paying extra money and can include features like a ‘swivel’ earloop, for increased ease of use and comfort, a noise-reduction feature and a steel clothing clip (replacing the plastic version).
The types of connectors compatible with Kenwood two-way radios
are limited when compared with some other manufacturers, but Kenwood know when to specialize in a certain area, because sometimes less is more.
Kenwood radios may only connect via two types of connector
, but their equipment is among the best in the world. A Kenwood radio customer does not have to spend undue time searching his/her choices and researching them before purchase, provided the connector/earpiece falls into one of the two aforementioned categories, then the equipment will work fine.
Kenwood have been producing quality products since 1946 and they have a long history of trust, customer loyalty and cutting edge equipment. Because of this, Kenwood earpieces are well known and usually sell well on the international market.
For More information on the full range of Kenwood earpieces visit kenwoodearpiece.co.uk
When you see American secret service agents on Television or in films, maybe you observed that they’re consistantly touching their ears? Well, at least one of our readers did and asked me to learn why.
By the ‘Matrix
’ movies, Agent Smith and co touched their ears in order to better mimic the behaviour of genuine FBI agents. Therefore it’s visibly a defining trait of secret service agents, at least in United states. It is clearly something they have been doing for quite a while now. Then again, the ‘Agents’ also did it to better receive signals on the technology who ran the Matrix program itself…
In the real world (assuming, naturally, that this IS the real world hmmm….), the reason that FBI agents touch their ears isn’t that dissimilar. Forrest Wickham, of www.slate.com
, has the advice:Are those earpieces uncomfortable? No, it’s just so they can hear better. Pushing in an earpiece makes for a tighter seal, which could mean the difference between hearing or missing a Secret Service codename or another agent’s message about the president’s position while standing in a noisy room. While earpieces are not uncomfortable, they do sometimes come loose, requiring readjustment.
There you have it, a rather embarrassingly lo-tech answer, FBI guys push their earpieces into their ears as that makes the directions come through louder and clearer. Like an obsessive ‘Spinal Tap’ fan, I cannot help but echo the puzzled query of Marti DiBergi and ask “why not just make the earpieces louder?” but that is obviously a question for another time.
Back to, Mr. Wickham
So that they do not do it to appear sinister, or to receive instructions in the engine world that secretly runs all our existence. They are doing it as, well, their communications is a little bit crappy, evidently.
Then again, I presume that if you’re trying to hear very detailed, very important information in the busy and loud environment, then any earpiece
you used would be sternly challenged. It’s hard to hear everything over the sound of large crowds as well.“Earpieces aren’t the only communication devices the Secret Service uses, and not all earpieces have the same design. Some devices, for example, look like iPod ear buds. The one-ear headphone often shown in the movies is standard and comes with a curly wire that runs down under their shirt to a hidden microphone worn in different locations depending on the circumstances of the assignment. One standard spot is just under the shirt sleeve. (That explains why agents are always lifting their wrists to their mouths.) Earpieces also come in different colors, and some agents choose a device that matches their skin or hair”.
Mr. Wickham also offers a bonus explanation. At the end of his article, Wickham tells us why the FBI guys always seem to be wearing sunglasses.“Why are Secret Service agents always wearing sunglasses? To keep the sun out of their eyes. While the Service has often cultivated a certain mystique, preferring to remain “cloaked in silence and mystery,” spokesmen insist they wear shades merely for their traditional purpose, and not, say, to keep would-be assassins from knowing which way they’re looking. The Secret Service has no set uniform, but agents say that wearing sunglasses on a sunny day helps them to scan a crowd for suspicious behavior”.
Seems adequate to me.
We at this site spend a lot of time reviewing the best and most well designed radios on offer today. Some of these products are specially made for specific functions and can fetch intimidating prices for smaller companies that nonetheless are eager to compete. With that in mind, we thought we’d take a quick look at one of Motorola’s cheaper models and see how it compares with the big boys.
With a utilitarian, somewhat pedestrian design, the Motorola CP040
is a million miles removed from the sleek, sexy contours of the MotoTRBO SL4000, or even the rugged, hardwearing face of the Motorola DP3400. The design is perfunctory, modest and unambitious, but looks can be deceiving.
A sturdy, capable model, this is a great choice for warehousing and agriculture (as pointed out on the Motorola site).
It only makes use of four channels, but is incredibly easy to use as a result, very much a ‘press and play’ radio. It also keeps contact over a surprisingly large range.
19 hours of battery life shows good durability (when in battery saving ‘low’ mode, anyway), while the ability to switch between broadcasting to multiple users or a single one is a very welcome function indeed.
Although clearly designed as a budget model, the CP040 has a lot of functions that we have come to expect from far-more pricey radios.
Believe it or not (and we even had to read it twice!), the CP040 is available at less than £100. OK, at £99 it’s not a lot less, but it still beats the better models by half (and then some). Indeed, there is a feeling that Motorola could actually charge a little bit more for this device and easily get away with it.
Making great use of Motorola’s much-vaunted ‘X-Pand’ technology, the CP040 provides excellent audio quality with every message, so there’s no real loss in sound quality (unless you obsessively compare the CP040 with the really high-end models and we aren’t going to do that here).
The belt clip (an optional extra) holds the radio in well and everything is generally sturdy and nicely made.
The CP040 may be lacking some of the more fancy features and extras that some of its peers can boast about, but as a standard, basic two-way radio, it is incredibly difficult to find fault with it.
The CP040 has been designed with mid level business use in mind, yes, it lacks the ‘boys own adventure’ ruggedness of Motorola’s outdoor models or the discreet, professional modernity of their urban, security orientated range, but it makes up for this in spades with a solid, reliable performance that won’t break the bank.
Perhaps it’s not the best product of its kind that the market can offer, but it is a very long way from being the worst and, in addition, it genuinely offers excellent value for money.
Customers may want something a little bit tougher and more overtly safety-conscious for use on building sites or battlegrounds. Perhaps they’ll also want something a little more slender and/or trendy for customer interaction, but otherwise, the CP040 suits its design-niche perfectly.
This is a great little device for basic business radio use and it’s hard to imagine it letting anybody down. Strong, reliable and high performance, the CP040 combines a thoroughly satisfying user experience with a pleasantly manageable price tag to create a wholly likeable (not to mention highly recommendable) product.
For more information on the Motorola Cp040
radio visit 2wayradionline.co.uk
Harking back to time of GCSE science, I tend to reflect of the term ‘application’ normally meaning ‘practical usage’ as the exceptionally annoying section of these seemingly countless worksheets we had to pack out, just so we might set ablaze to something. The ‘application’ part was the spot where you needed to say what (if any) world, practical value your experiments had, which, because it seems, wasn’t usually a great deal in my case. I remember a classmate pretty maliciously soaking a spider in hydrochloric acid once, but I doubted, even at age fifteen and three quarters, that it would turn into a well-liked type of pest control.
As Led Zeppelin have now been telling us since the 1970’s, you realize sometimes words have double meanings. In the case of software design and programming, there's also a lot of words that have now been co-opted to be able to denote something, usually only partially similar, to what the word actually means. So, applications, or ‘apps’ as we hip, swinging cats refer to them, don't have anything at all to accomplish with GCSE science and all to do with cutting edge consumer technology.
An app is essentially a computer program developed to help the parent device carry out a specific function. Apps are like mini programs that were originally designed for portable devices like iPods, Smartphones and Tablet PCs. Apps range from the sublime, (such like the app that can track traveling whales in real time or the one which shows you the exact position of all the stars and heavenly bodies from anywhere in the world) to the totally stupid, but amusing anyways (the app where it is possible to punch a cartoon cat in the face, Angry Birds). Apple consumers alone have access to on 60,000 downloadable applications, most of them are totally free to use.
Smart TV, obviously, has its individual set of downloadable apps. I should indicate right now that these are not as esoteric as a wide-ranging applications accessible for your phone or Pc tablet, yet. So far Smart TV’s list of apps can be a mostly practical one. Here is a look at some of these applications you’ll be able to acquire for the Smart TV (NOTE: Different applications are accredited to various manufacturers - so if you’re distinctively after a TV for its applications, it pays to do your homework, that is, in its own way, a bit like GCSE science).
Netflix - The extension of a online movie rental company (and proud sponsor of our iFanboy comic book conversation show, I hasten to add) is an app which supplies you the choice to stream ‘rented’ movies over the Web for a little cover fee.
Amazon - From Amazon, you can download content. So if you’d prefer to purchase a film or Television show, you are able to simply click on the link and it will be sent directly to your hard drive. It’s less expensive than purchasing discs and far simpler to store.BBC iPlayer
- This is a small version of the iPlayer site; there’s also a BBC News and sports application.
Youtube - You’ll also discover other video sites accessible as apps. Dailymotion and Vimeo have become properly accessible from your television.
Along with these apps, you’ll find Sports applications which will record every game and applications for specific channels, making them available as individual networks as opposed to part of a cable/satellite package.
Whichever apps you want, ensure they are doing what you think that they do and they’re available for the TV you choose, before you buy. That way you may avoid disappointment.