JC Telecom

Where can I find a machine to paint plastics like the housing on cellular phones?

The mobile phone or cell phone is a long-range, portable electronic device used for mobile communication. In addition to the standard voice function of a telephone, current mobile phones can support many additional services such as SMS for text messaging, email, packet switching for access to the Internet, and MMS for sending and receiving photos and video.

Back in the early days, cellular phones or simply cell phones are considered to be a luxury item that not everyone can buy, especially here in the Philippines. But now, Cellular Philippine Phone can easily be bought anywhere for one thousand pesos. Second hand Cellular Philippine Phone are the choice of many by Filipinos because of its cheaper than brand new.

When it comes to Cellular Philippine Phone here, the Nokia Cellular Philippine Phone was one of the widely used models of Cellular Philippine Phone, but it was closely followed by the Sony Ericsson and Motorola Cellular Philippine Phone.

There is a large variety of Cellular Philippine Phone here in the Philippines such as the Nokia Cellular Philippine Phone, Sony Ericsson Cellular Philippine Phone, Motorola Cellular Philippine Phone and many more Cellular Philippine Phone.

Cellular Philippine Phone are very common here that you can see a lot of Cellular Philippine Phone in any kind of stores. The only drawback of Cellular Philippine Phone here is that some of it are smuggled from other countries.

Smuggled Cellular Philippine Phone are very cheap than the original, but those kinds of Cellular Philippine Phone can break easily than the original. So if you want some authenticated Cellular Philippine Phone, then go straightly to an authorized dealer of Cellular Philippine Phone which can be easily seen on malls.

But if you want to order some Cellular Philippine Phone on the internet, then go straight to Express Regalo the online gift shop. For more information on Cellular Philippine Phone or Express Regalo then visit www.expressregalo.com .

Cellular phones are now getting to be a necessity in this modern society. This is not how they foresee the cellular phone future some years back. Luckily, manufacturers are quick to recognize the booming cellular phone industry. Thus, they are able to answer the growing demands for this functional toy. Additionally, the introduction of various functional features for cellular phones by huge cellular phone companies makes cellular phones more a need to perform specialized tasks. Because of this, the use of a cellular phone is getting to be a requirement for business executives in going about their various tasks as they go about their business. However, not everybody needs these special functions, some only needs cellular phones for basic use like sending and receiving calls. If you do not require these high technology functions, buying a cellular phone for basic use may only be what is necessary. Some cellular phones are for basic use including Samsung cellular phones. It is more reasonable to buy basic cellular phone models if you do not need to play with your cellular phone and Samsung cellular phone may be what is the best for your.

Samsung cellular phones are generally of good design. They have wide and clear display, which is beneficial especially for sending and receiving text messages. Samsung cellular phones have good battery life compared to other cellular phone units. As already mentioned, these cellular phones are good cellular phones for basic use. Samsung cellular phones have beautiful designs; you may be pleased to choose one among the various models that will fit your need. You will not despair buying a cellular phone from Samsung if you only require the basic features; beauty of the product is thus a bonus. However, if you are looking for functional cellular phones more than the basic sending and receiving calls and text messages, Samsung cellular phone is not the one for you. People who want to play and require so many functions and features will not enjoy a the cellular phone from Samsung.

Some basic complaints encountered with Samsung cellular phone, which happens only to very few users, are choppy calls and scratchy and distorted volume generation. This only happens to very few users, and to ensure you will not experience this in a Samsung cellular phone, you may ask the recommendation of the friendly Samsung staff.

Some who endeavor to find functionality in a Samsung cellular phone give it a nickname "very good yet slightly bad phone. It is very good because the designs are superb and the battery life is good. Slightly bad because some high-tech features fail in Samsung cellular phone, precisely it is a cellular phone for basic use.

Do not expect Samsung cellular phone for other features rather than the basic ones, no picture transfer, no internet communication and some phone do not support blue tooth usage. Not a techy’s choice indeed. Some people who buy this phone feel that with the superb design, it should include additional feature and functionalities. The company is on its way to developing the phone you require, researches and product development are now on the drawing board.

For some who could not wait, buying Samsung cellular phone is still a neat choice because the designs are upbeat and beautiful. The added bonus is that the battery life is longer than other cellular phones. Enjoy the basic functions and beautiful designs with Samsung cellular phones.

posted by: Fatima Zaheer

What these types of RF Jammers are:

• the reasons they were created

• the actual goals they serve to accomplish

TYPES OF RF Jammers under review: Cellular Jammers & IED Jammers

What is a Cellular Jammer?

A Cellular Jammer is a device intended solely for the disruption of cellular handsets within proximity of the jammers’ jamming signal, or, if placed or directed at a local cellular antenna tower, a Cellular Jammer can jam the tower from receiving transmissions from cellular handsets throughout a geographic region.

What is an IED Jammer?

An IED Jammer is a device intended to jam radio equipment used as radio triggers for Improvised Explosive Devices (IED). By definition, IEDs are built from home made appliances and chemical ingredients, compared to military grade remote controlled detonators used for radio controlled weapons.

Origins of RF Jammers

Why were Cellular Jammers created?

Cellular Jammers were designed to maintain cellular communication silence to block criminals from communicating to each other or to the media. Originally, Cellular Jammers were intended to deal with the nuisance levels stemming from the abuse of cellular phones in public places such as concert halls, restaurants, libraries, churches, etc. Additional applications for security and protection involve blocking cellular communication in secure facilities and research centers, and also the management of cellular communications in restricted areas such as correctional facilities, army barracks, or government offices.

Why were IED Jammers created?

IED Jammers were built to combat suspected explosive devices and to prevent covertly planted bombs from receiving remote control radio trigger signals sent by terrorists and insurgents. IED Jammers were designed to perform based on the premise that the manufacturers who built Jammers understood the rudimentary nature of those terrorists or insurgents building Improvised Explosive Devices. This understanding is vital when designing and building an electronic countermeasures solution to defeat roadside bombs from going off by means of radio trigger switches.

RF Jammer Goals

Deployment goals of Cellular Jammers:

Cellular Jammers are used in any location where cell phone use is prohibited, unauthorized, or unwanted either due to location or event sensitivity. Examples include: hostage situations, law enforcement stake outs — wherever one finds terrorist or illegal activities — government offices, air and naval bases, military installations, and especially correctional facilities, where inmates are known to direct outside criminal operations via cell phones.

Deployment goals of IED Jammer:

IED Jammers are used convoys, force protection, VIP and diplomatic transport, and any time one is involved in Explosive Detection work in a high-risk environment or situation, such as VIP or Executive Protection, military convoys, border security patrols, and road or countryside vehicle checkpoints.

Part II - RF Jamming Methodology

Without revealing too much about the sensitive nature of countering Remote Controlled Improvised Explosive Devices, an explanation is offered outlining the proper way to neutralize remotely detonated IED weapons such as roadside bombs, car bombs, and remotely ignited mines for ambushes.

Fact: IED Jammers are designed to counter a Remote Controlled Improvised Explosive Device (RCIED) or roadside bombs.

IED Jammers like the Bomb Jammer ™ line of RF Jammers can manually and automatically block radio signals located at frequency ranges of cellular phone bandwidths and beyond. These Bomb Jammers are user programmable, as well as factory programmable, and that means if the operator decides to jam radio signals at all frequencies deemed to pose a threat (be they cellular phone frequencies, or other areas of the RF spectrum), then this IED Jammer can broadcast the proper level of RF interference within the whole spectrum.

Fact: Cellular Jammers are designed to block radio frequencies used by cellular phones only.

What jamming methods are used in most Cellular Jammers and how are they detrimental when dealing with Improvised Explosive Devices? Cellular Jammers from most manufacturers operate using Swept Spectrum criterion to create output power levels that overcome the cellular signals targeted for jamming. When manufactures use this method of Swept Spectrum jamming with the goal in mind to attack triggering mechanisms of an IED or Cellular Phone IED, dangerously high levels of output power are required to create a ‘jam wave’ that can stifle or prevent the receiver from receiving a detonation signal.

These high levels of output power used for SWEPT SPECTRUM Jamming can accomplish basic jamming needs, yet this particular technology is not one to be relied upon, as it was introduced for jamming communications and cell phones, not RCIED’s. The byproduct of the ‘high power’ given off during the operation of Cellular Phone Jammers is HEAT. Even with heat sinks and fans installed into the Cellular Jammming hardware, heat makes the Cellular Jammer susceptible to overheating, and can lead to the failure of primary RF Jamming requirements.

In addition, Cellular Jammers disseminating abnormally high levels of energy to accomplish the jamming of an IED’s remote controlled trigger can have an effect on the health of those exposed to Swept Spectrum jamming operation.

For more information on how harmful effects may arise during the exposure of people to EM energy fields by frequency emissions ranging from 3 kHz to 300 GHz, a white paper that bears importance to RF Jamming may be viewed here:

http://standards.ieee.org/reading/ieee/std_public/description/emc/C95.1-1991_desc.html

Part III - RF Jamming Accuracies & Misconceptions

What makes up an RCIED or Remote Controlled Improvised Explosive Device? RCIEDs are composed of an explosive payload that is detonated by an explosive detonator or blasting cap which is activated by an electronic radio controlled receiver. This radio controlled receiver can be a cellular phone, yet it can also be a satellite phone, car alarm receiver, garage door opener receiver, cordless phone receiver, two-way radio, portable radio, walkie talkie radio, etc.

So the big question remains: Can a Cellular Jammer or Cell Phone Jammer hinder the radio controlled receiver of: satellite phones, portable phones, 2 Way Radios, remote controlled consumer or commercial electronics, etc.

The answer is YES & NO. Yes, Cellular Jammers may cause some trace levels of interference, however, the radio frequencies are far from Cellular frequency bands and therefore are porous to transmissions from non-cellular based frequencies.

Fact: IED Jammers are designed to counter a Remote Controlled Improvised Explosive Device ( RCIED) or roadside bombs

But the real question to be asked is: Do IED Jammers designed by those who have built Cellular Jammers deviate from the Cellular Jamming architecture in a manner that is fitting to assure that RF Jamming will properly block all threats to be countered?

Broadcasting high levels of radio frequency interference based on oscillation principles originally intended to target Cellular bands is not a reliable way to neutralize Radio Frequency IED threats. Will jamming signals transmitted at the speeds used to counter Cellular Radio Waves be able to saturate the environment and block all neighboring radio frequencies? Cellular Jammer manufacturers never really intended for their technology to spill over into non-cellular based communication bands to block Improvised Explosive Devices from receiving their detonation signals.

Cellular Jammers may have an impact on signal reception, but IED Jammers designed to target threats throughout the spectrum will have a bigger impact. For those who build IED Jammers based upon the configuration and RF Jamming methods of Cellular Jammers, the dangers are inherent in the design, and in interest of safety, should NOT BE USED to counter a Remote Controlled IED. That is why IED Jammers like the Bomb Jammer ™ series are more reliable when defending against roadside bombs planted by terrorists or insurgents in hostile territories.

For more information on Cellular Jammers, visit www.secintel.com/ps-985-4-communication-jammer.aspx and for IED Jammers, visit www.secintel.com/ps-937-4-enhanced-vehicle-jamming-system-vip-300x.aspx .

It is standard practice for telecom providers to lock cellular phones in their networks. This is a way for them to ensure customer loyalty and to maximize the profits they get from SMS and call usage.

But did you know that you can easily get unlocked GSM phones right now? These unlocked mobile phones can provide numerous benefits for you. Essentially, when you have an unlocked GSM cellular phone, you mobile device is working for your interests. You are not tied to a single network so you have more flexibility.

Here are some of the specific benefits you can get if you use an unlocked GSM cellular phone:

Wider International Coverage

You will be able to enjoy wider international coverage if you have an unlocked GSM cell phone. This is probably the top benefit you can get from unlocked cellular phone.

Normally, when you buy a cellular phone in the United States, you will get a locked mobile phone and if your carrier offers service internationally, they usually charge outrageous fees for it. So if you travel internationally, you will most likely be forced into buying a new cellular phone for every country you visit. You can avoid this inconvenience if you buy an unlocked GSM cellular phone from the get go.

A typical unlocked cellular phone will have worldwide coverage in more than 200 countries (you will require a GSM SIM card for each country, but you can use the same phone). This alone can make your mobile phone a powerful and highly productive communication device.

Unlocked Cellular Phones have Lower International Call Rates

Unlocked GSM cellular phones are specifically designed for international use. That is why you will enjoy significantly lower rates for voice calls, SMS, and other phone services. When you travel overseas you will simply need to purchase a local GSM card and this way you will be able to take advantage of their local rates.

So wherever you are in the world, you will pay only standard rates for all your calls. This is an economical option for you which could significantly reduce your international communications expenses.

Keeping Your Contact List Intact

When using an unlocked cellular phone, you will be able to keep and maintain your contact list as long as you enter and save them in the phone memory (and not in the GSM SIM card memory). That is because you will be using only one cellular phone no matter where you are worldwide. All the information stored in your phone will be intact, even if you change your GSM SIM card. This will allow you to be able to quickly find the phone numbers of your business contacts.

Using an unlocked GSM cellular phone offers great benefits. An unlocked cellular phone will work for you because you can maximize its usefulness especially if you travel frequently.