Monthly Archives: April 2015

A Look at the Motorola DP4400

Motorola DP4400 is a device that is capable of transforming your enterprise by making employee interactions much smarter and safer. The device features best-in-class audio and high-tech data capabilities; all meant to bring a new revolution in the world of communication.

The DP4400 delivers admirable voice quality and enables for seamless data communications through integrated GPS and Bluetooth audio capabilities. Besides that, this device is built with an intelligent audio and customizable voice announcement feature.

Because the radio is available in both UHF and VHF frequency bands, it is extremely easy to use. It offers 32 channel capacity and five buttons that are programmable. An emergency button is provided ad well alongside FM intrinsically safe options. Moreover, the device is made with IP57 specifications to enhance submersibilty.

Features of this product in brief

- Advanced signaling capabilities

The radio is available in UHF (403-527 MHz) or VHF (136-1774 MHz). It features 32 channels and 5 tone signalling capabilities. Its large and textured push-to-talk button makes it extremely easy for the programmer to tailor the use of 3 buttons – in order to increase operator efficiency.

- Easy to use and program

Besides being easily programmable, this radio features a Tri-coloured LED which enables for crystal clear visual feedback on the operating status of the radio. There is also an emergency button which is provided to ensure rapid reporting and response during critical situations.

- Effective, efficient and operable

Another admirable feature to be found on the Motorola DP4400 has PPT ID which is meant to improve communications efficiency and system operability. Its remote monitoring features go a long way to ensure user safety alongside enabling prompt assessment of remote user status. To make it even more effective, the radio comes with elegant channel scanning schemes a feat that makes it extremely easy and fast to receive calls every time.

- Enhanced audio capabilities

With a loud front-facing speaker and an intelligent audio feature which is designed to adjust the volume of the radio depending on the noise levels of the surrounding when in use. Besides its powerful audio features, the radio makes it possible to send programmable update messages when messages need to be conveyed without interrupting other workers or guests.

- Wide ranging data applications

This radio features one of the largest collections of Application Developer Programs. All applications are customized to include unique features such as email gateways, location tracking and work order ticket management.

A final word on product

Motorola DP4400’s diverse portfolio and high security features make it ideal for government and public safety.

How a Digital Walkie Talkie Works?

The Digital Walkie Talkie is the best way to communicate other than cellular phones on the world market. These devices are still widely used by the military personal, police officers, public event organizers, etc.

You might be quite interested how the digital Walkie Talkie Works? A walkie-talkie is a hand-held portable radio which communicates wirelessly using the radio wave signals on single and shared frequency bands.

Each of the battery-powered units of the device contains an antenna and transmitter/receiver for sending and receiving of the radio waves. It also contains a loudspeaker that doubles up as loud as a microphone when someone talks into it. There is also a “push-to-talk” or PTT button for this purpose.

The loudspeaker/microphone of the device works following the same mechanism as that of the intercom. The microphone and speaker contains almost the same components viz. a magnet, a wire coil, and a plastic or paper cone to pick up and generate the sounds.

You can also use any single device to do both jobs by switching electrical circuit and reversing the current flow. Walkie talkies manufactured by big companies include separate microphones and loudspeakers. Thus, it is based on a very simple mechanism.

How to use the Walkie talkie?

Groups of People who talk on the digital Walkie Talkie don’t need to tune into the same frequency band. Thus the Digital element of the Walkie Talkie. The radios of these walkie talkies are all receiving. Thus, the microphone/loudspeaker units work as a conventional radio.

If you want to talk with others via a walkie talkie, then you need to hold the push-to-talk button on the handset. After that, the radio becomes quiet as the loudspeaker switches over to the microphone.

As you talk into it, your words are converted into the radio waves and are then beamed out on a prearranged channel. Typical frequency of this channel is around 400 MHz. The radio waves are a part of the electromagnetic spectrum, they travel at the speed of sound.

The high-speed sound waves are very easily picked up by the other handsets. The radio waves are converted back into electric currents and are used by the loudspeakers to reproduce the sound of the voice of the person who is talking.

When the talking is finished, the talker says “over” and releases the “push-to-talk” button.

The radio now switches back into listening mode and someone else can talk. After this, the radio switches back into the listening mode.

The most distinct feature of the digital Walkie Talkie that makes it quite different from the normal radio is that it is a 2 way radio that is you can talk as well listen with the help of this device.

What are the benefits of using these devices?

The digital Walkie Talkie is a simple, robust and easy to use device for indoor as well outdoors. These devices are also very much suitable for the children as these are very light and easy to carry and handle.

The kids can keep in constant touch with their parents with the help of these devices. These are very much suitable for the business application purposes.

What are the major specifications?

A Digital Walkie Talkie is very convenient and weighs 100-200 grams and can work over a 5 to 10 square kilometer or 2-4 square miles. These electronic devices also have a very long battery-life of almost 20 hours.

The Walkie-talkies have multiple channels. So you can easily switch from one to the other easily. Some walkie talkies also have baby monitor intercoms.

What are the various parts of this device?

Variois parts of the digital Walkie Talkie include antenna, LCD displays, select buttons, monitor, menu buttons, loudspeaker, PTT button, volume control, on/off switch, microphone, LED indicators, etc.

The radio waves are sent and received by the antenna. The LCD display shows the channel number, battery life, etc., baby monitors are sometimes fitted within the device, the menu buttons are used to change the settings and functions of the device.

The LED indicate light glows showing that the channels are all busy.

The digital Walkie Talkie is offered at very reasonable and affordable prices by the best online shops. These are also very durable and flexible when in use. Therefore, it is a very useful telecommunication device for the people of all ages and backgrounds.

Why Are Headphones Becoming More Popular?

The answer to the one is simple. Headphones are getting more fashionable at the same time as portable devices. The more devices there are on sale, the greater headsets shall be flying from the shelves with them.

Headphones are only useful when connected to an peripheral device of some kind, the remainder of the time; they have no function whatsoever, so headphone-ready devices must be on the rise if headset sales are increasing.

The extraordinary success of the Tablet PC and also the MP3 player has a lot to do with this. Socially, the iPod’s impact has been profound. When I was little, anybody over the age of about 16 who was wearing headphones and never jogging looked stupid, they seemed like some type of impotent man-child caught inside a desperate attempt to re-capture lost youth. Usually, these oddball creatures would bob their heads while they walked and tap their thighs with their hands, as if keeping time with some invisible beat, I’m sure they thought they looked cool, but the general effect looked more to me like an epileptic flamingo that was going to throw up.

Of course today, basically everybody owns an iPod. Even Barack Obama, at the time a Presidential Candidate, revealed the contents of his iPod in the memorable ‘Rolling Stone’ interview. So it’s no surprise that sales of headphones are shooting up.

Of course, along with all the rise in portable devices came the increase in Internet gaming, another product that requires headphones. Of course, to properly play online, you’ll need a good set of headphones.

These days, I’m unsure there’s anything money can buy that doesn’t possess a headphone jack in it somewhere. When I can’t sleep at nighttime, I stick my headphones in and listen to music on my computer whilst my girlfriend sleeps, when I go out to meet her from work, I use headphones with my iPod and also you know what? I’m not alone.

Next time you’re out and about, look around you and see just how many people are listening to something, its not only kids, its not just trendy adults, its everyone.

Because headsets don’t last forever, they occasionally need replacing, which increases sales even higher. With everybody using headphones all day and every day, this indicates those weird looking nerds were onto something, after all.

Veteran Stage, Screen and Star Trek Actor Leonard Nimoy Passes Away, Aged 83

Veteran actor and director Leonard Nimoy has passed away aged 83.

The actor, who was best known for his portrayal of the half-Vulcan science officer Mr. Spock from the Star Trek franchise, was also notable for directing two of the Star Trek movies (the third and fourth instalments, respectively), as well as the popular 1987 comedy Three Men And A Baby.

Tributes to this iconic TV and film personality have flooded in from all angles, from Canadians defacing their $5 banknotes by ‘Spocking’ them, to a unique and exceptionally touching tribute from astronaut Terry W. Virts, who took a photo of a Vulcan salute given whilst aboard the International Space Station, just as the vessel passed over the actor’s home town of Boston, Massachusetts.

Further tributes from Nimoy’s colleagues in the arts and entertainment industries, and elsewhere, have been touching and, at times, surprising.

Long time co-star William Shatner (who portrayed Captain James T. Kirk in the original Star Trek series, as well as 7 of the related feature films), said of Nimoy “I loved him like a brother. We will all miss his humor, his talent, and his capacity to love.” George Takei, also a Star Trek co-star, called him not only an “extraordinarily talented man” but also noted that he was “a very decent Human being”.

US President Barack “I loved Spock” Obama said of Nimoy that he was, “a lifelong lover of the arts and humanities, a supporter of the sciences, generous with his talent and his time.” Such an admirer of Nimoy’s was the US President, that when they met in 2007, Obama actually greeted him with a Vulcan salute.

Astronaut Buzz Aldrin, the second man to walk on the moon, praised Nimoy for making “the journey into the final frontier accessible to us all”.

Fellow sci-fi Actor Christopher Judge, whose film credits include The Dark Knight Rises, but who is most famous for his portrayal of Teal’C in TV’s ‘Stargate SG-1’ Tweeted, “RIP Mr Nimoy. I hope my eyebrow made you proud. It was a ten year homage to you sir. You are my hero. Indeed”

The flood of tributes directed at Nimoy’s passing not only reflect his status as an icon of television and film, but also his generosity of spirit.

In 2014, actor Walter Koenig, who played Pavel Chekhov in Star Trek, revealed that Nimoy had personally appealed to the show’s producers to have African American actress Nichelle Nichols’ pay raised to equal that of co-stars Koenig and George Takei, which they then did. Nimoy also refused to voice the character of Mr. Spock in Star Trek: The Animated Series unless the producers first hired Nichols and Takei, who had not been cast at that time. For this, and many other acts of kindness on set, ‘Star Trek’ creator Gene Roddenberry was known to refer to Nimoy as “the conscience of Star Trek”.

Speaking following her long-time colleague’s death, Nichols, 82, said, “His vision and heart are bigger than the universe. I will miss him very much and send heartfelt wishes to his family.”

Away from Star Trek, Nimoy was also notable for his occasional TV appearances in The Simpsons and Futurama, as well as his hosting of paranormal series In Search Of… and his recurring role in Mission: Impossible.

Nimoy also appeared in small parts, or Guest Star slots in iconic US shows such as Dragnet, Wagon Train (which is ironic, as Trek creator Gene Roddenberry originally pitched his show as Wagon Train to the stars!), Bonanza, Columbo Rawhide, The Man From U.N.C.L.E and, more recently, Big Bang Theory.

Other fan-favourite credits include his voicing of the character Galvatron in the cult 1986 animated feature Transformers: The Movie and his performance in 1978’s critically-acclaimed Invasion of the Body Snatchers re-make.

Early in his career, Nimoy also enjoyed a small role in the 1954 science fiction movie Them! which has since come to be viewed as a classic creature feature.

Leonard Nimoy was also a noted stage actor, appearing in plays such as The Fiddler On The Roof, an adaptation of Ken Keseys novel One Flew Over The Cuckoos Nest (in which he played McMurphy), Sherlock Holmes, The King And I, My Fair Lady, Equus and Shakespeare’s Twelfth Night.

He also wrote, directed and starred in Vincent, a play based on the life of Vincent Van Gogh, which he later published in book form.

Away from acting completely, Nimoy was a qualified pilot, a published photographer and sometime musician. He could also read and speak fluent Yiddish. He was also active in several charitable organisations, including the American Cancer Society, the American Foundation For Equal Rights and most famously, the Nimoy Foundation, which was created to “encourage, recognise and support the work of artists” by granting money to aspiring creators.

Nimoy, also a successful author who published a two-volume autobiography beginning with I Am Not Spock and ending with I Am Spock, was also known as a poet, publishing several volumes throughout his later life, some of which also included his photography.

It is fitting, then, that Leonard Nimoy’s final words to his many fans were warm and poetic. Just a few days before he died, Leonard left this message on his Twitter page, “A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP.”

Leonard Nimoy was more than just a legendary TV and film actor; he was a sweet and noble soul. An artist, an inspiration and an ever-popular presence in any role he performed, be it as an alien explorer, a husband and father, or even a grandfather. LLAP.

How to Use a Walkie Talkie Headset

The basic functioning of walkie talkie headsets or two way radios is similar to standard radios. They receive RW or radio waves over the air. Once radios have received the radio waves, they convert it into sound. However, two way radios also convert sound to radio waves and transmit it back to another receiver. In simple words, these special types of radios can receive and transmit a radio signal simultaneously. Moreover, such radios use two different radio frequencies. This ensures that they can receive and send signals at the same time.

Most of the two way radios in modern times also allow scanning. Through scanning, a user can easily check if anyone is sending a transmission on a particular frequency. If the radio which is being used detects a private line tone, it will stop scanning and lock on that particular channel. This will allow the user to speak and transmit on the same frequency. As mentioned earlier, modern radios allow a person to use multiple channels. However, a walkie talkie headset should be able to generate and transmit radio waves in many different frequencies. All the frequencies should have minute fluctuations with each other.

Applications Uses of Walkie Talkie Headsets

These special type of radios have always been in demand even with all the mobile phones and laptops. Such radios facilitate easy accessibility and instant communication. Moreover, you can communicate with a bunch of people at the same time. With such a radio, you don’t have to call everyone individually and spend a lot of your hard-earned money.

These radios can be used for many different purposes. They are often used in public safety, recreation camps, military training and other businesses. Moreover, they can also be used as toys for children. Two way radios come in many different designs at affordable prices.

These type of radios can also be used in the medical industry. They can be quite useful in admitting patients or attending to people in emergency waiting areas. They also come in handy with outpatient clinics, pharmacies, and surgeries. Such radios can also be used in food industry. They can be used by waiters, kitchen staff and delivery staff in restaurants and so on.

Every person finds it easy to use these radios. Moreover, they are not as complex or difficult to use as mobile phones and other such communication devices. A walkie talkie headset is always the best option to communicate at work, play or home. Such radios can be used in many different situations. Even the most popular communication devices can not challenge the ease of use associated with such radios.

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