Cambridge United v Manchester United: Sepura kit out U’s stewards with new radios in time for big match

SEPURA has kitted out Cambridge United stewards with radios ahead of tomorrow's big FA Cup with Manchester United.

The portable DMR radios replace the club's analogue communication system and will be officially used for the first time at the R Costings Abbey Stadium when Richard Money's side face the Red Devils in the sell-out fourth round fixture.

U's chief executive Jez George said: "The forthcoming FA Cup match is one of the biggest event in the history of our club, we are aware of the global exposure that it will give to Cambridge United and need to ensure that everything runs smoothly and successfully on the day.

"Thanks to our new Sepura digital radios we'll be ready to overcome any challenges that may arise during the event."

Read more: http://www.cambridge-news.co.uk/Cambridge-United-v-Manchester-United-Sepura-kit-U/story-25907956-detail/story.html#ixzz3Q7DHgeWn

How Does Spy Earpiece Work?

The spy earpiece is a gadget of the future that facilitates our lives. With the spy earpiece invisible communication is performed in most troublesome situations when cover assistance is necessary.

The main feature of the spy earpiece is its complete invisibility. First of all, the spy earpiece goes in beige hue that is very close to skin color. So when you insert it into the ear, nobody can even notice it. Besides, the spy earpiece can boast of super tiny dimensions that ensure absolute invisibility of the gadget when it is in the ear.



The good news is the spy earpiece is available on the market in diverse gadget sets. The most popular of them are Bluetooth Set, Watch Set, MP3 Set and Glasses Set. Each one of the sets listed above has an in-built transmitter and a microphone (in the loop for Bluetooth and MP3, in the bow of the glasses and on the reverse side of the watch). Thanks to the transmitter, the gadget gets connected to the cell phone. And thanks to the sensitive microphone your partner will hear your every word even if you whisper. So, as you can see the spy earpiece set consists of the transmitter with an embedded microphone and a spy earpiece with a battery.

It is pretty easy to use the spy earpiece. What you have to do is the following sequence of steps:

· Put the transmitter. If you use the Bluetooth or MP3 spy earpiece set, you are supposed to put on the loop round your neck. Make sure that the loop is properly hidden under your clothes. For Spy earpiece Watch set you put on the watch on your wrist, and for Spy earpiece Glasses set â€" just use it like ordinary glasses.

· Insert the battery into the spy earpiece. Every set comes with a detailed guidance for that, so don’t be afraid of doing something wrong. Anyway, if the quality of sound is unsatisfactory, try to change the position of the battery.

· Put the spy earpiece into the ear. Here you should remember that you always have to clean ear canals beforehand. Otherwise, the spy earpiece filter will choke up with earwax and sound will deteriorate significantly. In the worst case the spy earpiece will fail to work.

· Make a call. When you are ready with preparations just make a call and put the cell phone into your pocket. You won’t need it any more. Now the covert communication is established. You can hear what your partner is saying.

· Pull the spy earpiece out. This is very easy to do thanks to a special ejection cord every spy earpiece has. You can see it in any picture.

· Take out the battery. Be careful about pulling out the battery. You have to do it only with the help of a paper pin so that not to damage the spy earpiece. In case you won’t take it out, the battery will discharge.

With the help of the spy earpiece you will never feel embarrassed and confused when speaking in public, writing a test, having an interview or taking an exam. The spy earpiece will help you to feel confident and be successful.

Source - http://osanellona.hubpages.com/hub/How-Does-Spy-Earpiece-Work

What is an Acoustic Transducer?

From Wisegeek.com “What is an Acoustic Transducer?” (27 January 2010)

An acoustic transducer is an electrical device that coverts sound wave vibrations into mechanical or electrical energy. They have various practical applications, including sound recording and sound playback. A specialized model, called an ultrasonic acoustic transducer, can be used to measure distance to, as well as the mass of, an object.

Common types of acoustic transducers used in sound recording include microphones, earphones, and guitar pickups. These create electrical energy when moving parts inside the transducer, such as electrical plates or ribbons, are exposed to sound vibrations. The electrical energy produced inside the transducer is sent first to an amplifier.

The amplifier then sends this energy to its final destination, usually a loudspeaker or recording device. The loudspeaker reproduces the sound at a level that the human ear can hear. A recording device will retain the electrical signal information. The recorder will send the stored signal to a loudspeaker during playback.

An ultrasonic acoustic transducer can be used to measure distance or the mass of an object. The most common type is the piezoelectric acoustic transducer. These include a piezoelectric ceramic element that creates and distributes ultrasonic sound waves.

Sound waves travel to an object from a piezoelectric transducer through material called a couplant. The couplant is usually water. Sound waves bounce off the object and return to the transducer in the form of an echo. The time it takes for these echoes to return to the transducer is used to calculate the distance to the object.

Underwater sound navigation and ranging (SONAR) is a common use of an ultrasonic acoustic transducer. SONAR uses directional beams of sound waves. This enables the SONAR operator to determine the direction and distance to an object.

SONAR systems can be active or passive. An active system sends out sound waves and listens for echoes. A passive system listens for noises made by ships, fish, and landmasses.

An electromagnetic acoustic transducer (EMAT) is another form of ultrasonic transducer. Instead of a ceramic element, an electro magnet is the main component of an EMAT. This is a type of non-contact, or non-destructive transducer. Unlike piezoelectric transducers, EMATs do not need a couplant to carry sound waves. Instead, two electromagnetic fields are generated to disburse ultrasonic waves.

EMATs can easily be used almost anywhere since no liquid is needed. For example, EMATs can be used to check for flaws in underground pipes. A downside to EMATs, compared to piezoelectric transducers, is that EMATs create weaker sound fields.

Where Are Sepura Radios Used?

For people who are curious where Sepura radios are used, then this article is for you. Sepura is a highly respected company that designs, manufactures and sells radio technology. However, the company is known for providing accessories, like a Sepura radio earpiece to radio networks. The company has gained a reputation to supply radios that are highly secure, feature-rich and durable. In fact, with these so many features, the only real question is - in which situations do Sepura radio are not suitable? The answer is - hardly. Nevertheless, this article is going to enumerate a few popular uses for Sepura radios.



Public Safety



One of the most common uses for Sepura radios is in the field of public safety. There are plenty of reasons for this, but the most compelling one is because of the Sepura's mobile gateway technology. Because of such technology, officers in public safety will be able to communicate with each other no matter the location, even for "dead spots. Sepura radio also comes with a one-of-a-kind noise suppression technology. It's so good at it that even with wailing sirens, you can still hear crystal clear audio. However, if you really want to block-out all the background noises, then Sepura radio earpiece can help you with that.

Seupra also provides radio technologies that are all designed to streamline and increase the functionality of the communications like allowing real-time information sharing with emergency services, the control room and colleagues; also, Sepura provides apps that make using the technology easier. The ability of Sepura radios to withstand a heavy beating makes them very ideal for tough and disaster scenarios. Lastly Sepura radios come with a Man-Down feature, which provides critical help for any officers that might need backup or assistance.

Oil And Gas

Another popular use for Sepura radios is in oil and gas industries, especially offshore installations. These kinds of work environments are considered as “high risk", thus worker safety of utmost importance. Therefore, accurate and clear communication is crucial for the safety of all the workers. Sepura radios offer the one of the best radio communications and technologies to provide that another safety layer.

The notable safety features are the Lone Worker and Man-Down. These features are especially designed to ensure safety of the workers and provide immediate help if the situation arises. The radios and accessories are designed in a way so that it can be easily operated even if the user is wearing thick gloves. Sepura radios also feature real-time information authorization access to different areas. This helps protect assets and ensure information security. Also, Sepura radios come with an app specially designed for oil and gas environments as it helps in reducing incidents, liability exposure, promoting safety and full audit-trail.

Sepura is a company that designs, manufactures and sells radio and radio based-technologies from handheld devices, networks to accessories, like the Sepura radio earpiece. Because of the many features, their radios are extensively used in different locations, industries and agencies. The company has put a lot of effort to put features that ensure safety and clear communications, thus it has earned a place in public safety and oil and gas industries.

A Look At The Different Motorola Radio Earpieces

When it comes to discreet affairs, there definitely must be a discreet communication. Whether it is a security personnel or just a private group of designated people. Radios are used for communication between compatible devices within a specified location. Nevertheless, it would be less comfortable if someone talks via the radio and everyone hear the entire communication. Given the different types of two-way radios in the market, they usually come with a compatible earpiece. Among the most common radios are the Motorola radios. It would be super discreet and stylish if you had a Motorola radio earpiece to accompany your device. Some of the ideal Motorola 2-way radio earpiece connectors at EarpieceOnline include the following;

CP040 & DP4400 2-Pin Connector

This Motorola 2-pin connector can work with a number of Motorola 2-way radios. It can also support some of the old version radios such as the GP040 and the GP300. Some of the novel version of radios that are compatible to this earpiece include the DP1400 and the DP1000.

Features of the connector

• It has a changeable Foam sock so that you can replace if it has worn out.

• The earpiece also has a comfortable and flexible C-shaped earpiece.

• There is a secure moulded ear hook, for holding firm on the ear.

• It provides high quality audio.

• It comes with a noise reducing microphone for enhanced reception of incoming voice messages.

• The earpiece has a plastic that is covered by a label clip PTT button. The wire PTT is separated from the microphone and an ear hangar earpiece.

• It has a RoHS compliant feature and comes with Motorola earpiece 2-pin connector GP300/CP040/XTN and GP340 adapters.

DP3400 & DP3600 Multi Connector

This is a multi pin connector works with all DP3000 & DP4000 range of radios, with a 12-pin connector, it slots perfect onto the side of the DP radio and is securely screwed in so that the earpiece is securely locked in.

Features

• It is incorporated with Kevlar Reinforced for better surveillance and security.

• It has a secure fit tube connector, to avoid accidents of it cut from rough encounters.

• It offers a high quality audio.

• The earpiece has a Lapel clip PTT button and a separate wire PTT. That is separated from a noise reduction microphone and an acoustic tube. The acoustic tube runs over the ear, the FBI style.

• There is a changeable connector for flexible modification and flexible mushroom plugs that you can replace whenever.

DP2400 & DP2600 multi connector

This is yet another different multi-pin connector that lets you connect to the DP2000 range of radios. This 8-pin connector fits on to the side of the radio and is locked in with a 'pull out and slot-in' connector, reducing the risk of broken screws or damage to the radio.

Features

• The acoustic tube runs over the ear and it has a secure fit connector for super surveillance and comfort.

• It has a separate wire PPT different from the acoustic tube and a microphone that reduces noise from the surrounding.

• The mushroom plugs are changeable and you can simply remove them when they are loose or worn out.

• It produces a high quality audio that reduces strain even when in a noisy environment.

GP340 & GP680

This multi connector is compatible the GP range of radios, including the GP340 and GP680. The Connector is a 13-pin connector and is secured on the side of the radio, with a screw-in to secure the earpiece to the radio.

Features

• This multi connector has a high quality audio reception. That makes it comfortable to use anywhere, even in a crowded, noisy place.

• There is a microphone, which is separate from a wire PTT and an acoustic tube. The microphone is a noise reducing microphone, that helps to make the other end-user be comfortable.

• It has a RoHS compliant and an over the ear acoustic tube that holds firm to the ear.

• There is an adjustable connector that is versatile to other devices.

An elegant and well fitted earpiece will not only promote surveillance, but it will also be comfortable on the ear. That will ensure it is safe from damages in rough situations. A Motorola radio earpiece will be beneficial if you want a comfortable communication without having to speak loudly over the radio. Some of the radios are also slightly heavy, which makes them more comfortable when using an earpiece, that is worn beneath the clothing.

How Many 2 way radios Can Run on one Channel?

Theoretically, you can use an unlimited amount of walkie-talkies on the same channel (although in practice you might experience a few problems if you took that suggestion literally). Basically, there isn'€™t really a set limit. You could use as many as you like provided they are set up correctly. Anybody set to the right channel and in range at the time of transmission would then be able to pick up the signal and respond to it.

Most radios have access to 8 channels. These channels each have 38 separate €˜identification tones€™. The user sets his/her channel up with the desired tone and then only other users who know the channel/tone will be able to hear the transmissions. As a result, there are, in any given area, about 304 different combinations, so signal interference is unlikely to affect you.

Please do not interpret this answer as saying that your radio has access to 304 possible channels. It does not. It will likely only have access to 8. Some less reputable manufacturers tend to falsely imply access to 304 channels; this is simply not the case. You will have access to 304 possible tone/channel combinations, that’s all.

To better explain the CTCSS codes and how they work; we'€™ll include a little information from Amherst.co.uk€™s FAQ page.

€œCTCSS stands for “Continuous Tone Coded Squelch System”. These codes are also often called “Privacy codes” If a CTCSS tone is selected; a CTCSS sub-audible tone is transmitted along with the regular voice audio by the transmitting radio. The receiving radio, set to the same CTCSS tone, will only receive audio if it contains that sub-tone. Interference from other users on the same frequency is therefore rejected (unless they are also on the same sub-tone). This is a way of allowing groups of users of walkie-talkies on the same channel to avoid hearing messages from other nearby users”.

So, in conclusion, you can probably use as many walkie-talkies as you like on the same channel. As long as the units in question are of the same type (either VHF or UHF) and have the same CTCSS setup, then you simply shouldn'€™t have a problem. You also shouldn'€™t suffer from signal interference due to other users (although you may still experience signal loss/interference/degradation from other sources). We have talked about combating signal loss elsewhere, so please see the other questions if you have any problems in this area.

SOURCES

http://www.amherst.co.uk/walkietalkie/walkie-talkie-radio-faq-basics.htm

http://www.homephonesonline.co.uk/information/qa-walkie-talkies.htm

NASA Confirms Liquid Water on Saturn’s Moonell

A major scientific discovery was made this week as scientists uncovered overwhelming evidence indicating the presence of a ‘great lake’ on Saturn’s moon Enceladus. The discovery is important because it marks Enceladus as being a possible site for life existing outside of our own planet.

Initially, icy material was seen being squirted into space from an odd ‘striped’ pattern on the moon’s southern pole. It was theorized that this material was water being ejected from a large body of liquid H20 on the moon’s surface. This week, measurements from NASA’s Cassini probe revealed the water’s gravitational signal, effectively confirming the theory. The Cassini probe even sampled the water as it was ejected into space.

Professor Luciano Less, of the Sapienza University of Rome, who was interviewed on the subject by BBC news, said, "The measurements that we have done are consistent with the existence of a large water reservoir about the size (volume) of Lake Superior in North America,"

To add context to this statement, Lake Superior is the largest freshwater lake in the world by surface and the third largest in the world by volume. It reaches depths of 147 metres and has an approximate volume of 12,000 Km3. It also plays home to over 80 different species of fish.

Data extracted from the probe suggests that the water is about 40km underneath Enceladus’ icy surface.

Enceladus is locked in an eccentric orbit around its parent planet; this means that the moon’s orbit is non-circular and it therefore follows that Saturn’s gravity will have the effect of melting the ice in some places and freezing any liquid found in others.

There are a lot of places in our solar system that possibly house liquid water, but not as many where that water can come into contact with rock. Rock is important because rocks release minerals and salts into the water - and these materials are among the key building blocks of life.

Professor Andrew Coates of the UCL-Mullard Space Science Laboratory was also interviewed for BBC news, he remained positive regarding the possibility of microbal life on Enceladus. Prof Coates said, "I think Enceladus has gone to the top of the charts in terms of a place where there could be life. (...) It's got several of the things which you need for life - there's certainly the presence of heat, there's liquid water in this ocean, there's organics and that type of chemistry going on. (...) The only question is, has there been enough time for life to develop?"

However, as Professor David Stevenson, from the California Institute of Technology, pointed out “we don’t know whether the ocean is beinghere or is freezing up”. It is theoretically possible that the great body of water confirmed this week has been there for 100 million years, but it is also potentially a far more recent development. At present, no one knows for sure.

you can obtain the original piece here