Archive for November, 2009
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).
A 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 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.
A macrocell is a cell in a mobile phone network that provides radio coverage served by a power cellular base station (tower). Generally, macrocells provide coverage larger than microcell. The antennas for macrocells are mounted on ground-based masts, rooftops and other existing structures, at a height that provides a clear view over the surrounding buildings and terrain. Macrocell base stations have power outputs of typically tens of watts. The term macrocell is used to describe the widest range of cell sizes. Macrocells are found in rural areas or along highways. Over a smaller cell area, a microcell is used in a densely populated urban area.
RF Engineering, also known as Radio Frequency Engineering, is a subset of electrical engineering. It applies to devices which are designed to operate in the Radio Frequency spectrum. RF Engineering is incorporated into almost everything that transmits or receives a radio wave which includes, but not limited to, Cell Phones, Wi-Fi and Public Safety Solutions.
RF Engineers are a part of a high;y specialized field and are an integral part of in-building wireless solutions. Their expertise is needed to design effective and reliable solutions. To produce quality results, an in-depth knowledge of mathematics, physics and general electronics theory is required. Even with this, the initial design of an RF Circuit usually bears very little resemblance to the final physical circuit produced, as revisions to the design are often required to achieve intended results.
RF Engineers are specialists in their respective field and assist in both the design, and maintenance of our solutions. Often, creative and collaborative solutions are required in the wireless industry, we work closely with our RF engineers to deliver quality solutions. The range of technologies used is vast due to the wide array of frequencies allocated for different radio services, and due to the range in age of equipment.