Posts Tagged ‘cellular frequencies’

4g

4G mobile technology is the name for the next generation of mobile devices such as cell phones. It became available from at least one provider in the US in 2009.

The use of G, standing for generation, in mobile technology covers the major advances of the past 20-30 years. 1G technology involved the first widely available mobile phones. 2G technology, which began in the early 1990s, switched to a digital format and introduced text messaging.  3G technology improved the efficiency of how data is carried, making it possible to carry enhanced information services such as websites in their original format. The latest iPhone is the best known example of 3G and 4G technology.

4G mobile should use enhanced security measures and offer drastically faster speed.  A second goal is to reduce blips in transmission when a device moves amongst areas covered by different networks. Within the United States, there are two major systems using 4G mobile technology. One is known as WiMax and is backed by Clearwire, a firm whose majority owner is Sprint Nextel.   The competing system, Long Term Evolution or LTE, is backed mainly by Verizon. It was expected to be ready for testing in 2010 but not available for widespread use until 2012 LTE’s backers hoped to overcome this disadvantage by offering faster speeds and producing cheaper equipment.

Unlike previous generations of mobile technology, 4G mobile will be widely used for Internet access on computers as well as carrying cell phone communications. Customers in areas which have strong 4G coverage will be able to use it for a home broadband connection which doesn’t require any cabling to their household. It can also be used for accessing the Internet on the move without having to be in a wireless hot-spot such as those offered by some bakeries, coffee shops, airports and libraries.

If you would like to learn more about 4G or the wireless solutions that Harris Communications offers, CONTACT US today.

1010-tnGreat question!  Most likely, the trees between you and the tower have leafed out.  We have had a few situations in which a clients reception was impacted by the trees around their office building. 

This is a great question.  We have mentioned “dual band amplifiers” in the past.  When we talk about dual band we are generally referring to an amplifier.  This means the amplifier is built to amplify/enhance signals for both the 800 MHz cellular or the 1900 MHz PCS frequencies.

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Harris Communications has conducted site surveys throughout the United States.  The purpose of a site survey is to determine what type of solution and design will work best for a specific facility.  In most cases it is not feasible to provide an accurate estimate based on square footage of a facility alone.  There are quite a few variables that structures can contribute to each project.  The best way to get an accurate and efficient solution is to schedule a site survey prior to commissioning a design.

logocombinedGreat question!

You can boost more than one cellular signal.  We prefer to conduct a site survey in order to determine the carrier readings in and outside your building to determine what solution will be the best fit.

Cellular Repeater Solutions can be designed to suit any size facility and repeat as few or as many carriers that the building owner desires.  The outline below details how they work:

It is more and more common for first-responders, (Police/Fire/EMS), to demand reliable ubiquitous radio coverage to ensure the safety of the public, as well as their own.  In many instances poor in-building radio coverage has a negative impact on first responders ability to communicate effectively in a crisis situation.  The prevailing thought today is that “Mission-critical” coverage can no longer end at the hospital doorway, basement, or stairwell. 

DAS is the acronym we use in the wireless industry for DISTRIBUTIVE ANTENNA SYSTEM (DAS).

In-building and Microcell AntennaA microcell is a cell in a mobile phone network served by a low power cellular base station (tower), covering a limited area such as a mall, a hotel, or a transportation hub.  A microcell is usually larger than a picocell, though the distinction is not always clear.  Microcell’s use power control to limit the radius of its coverage area; typically the range of a microcell is less than a mile wide.  A micro cellular network is a radio network comprising of microcells.

A cellular network is a radio network made up of a number of radio cells (or just cells) each served by at least one fixed-location transceiver known as a cell site or base station. These cells cover different land areas to provide radio coverage over a wider area than the area of one cell, so that a variable number of portable transceivers can be used in any one cell and moved through more than one cell during transmission.

Cellular networks offer a number of advantages over alternative solutions:

1. Increased capacity

2. Reduced power usage

3. Larger coverage area

4. Reduced interference from other signals