What is a Distributed Antenna System (DAS)?
A DAS (distributed antenna system) consists of a network of antennas that offer comprehensive wireless cellular service for an area, structure or building. DAS technology was developed to address problems with mobile connectivity faced by many building owners.
How Does DAS Work?
Active DAS consists of a wide network of antennas that are connected to the base station using fiber, ethernet and coaxial cabling. These antennas collect the signal from the participating carrier network, send it to the base station where the signals are enhanced and then redistributed through all rooms of the building using a system of internal antennas.
Types of DAS Systems:
There're two types of DAS systems – Outdoor DAS (oDAS) and Indoor DAS (iDAS).
Outdoor DAS (oDAS).
Outdoor DAS is used for outdoor facilities such as university campuses, ski resorts, remote areas, urban clusters, tunnels and so on.
Indoor DAS (iDAS).
Indoor DAS is more common and is used to enhance coverage for indoor facilities such as buildings, malls, stadiums, public halls and so on. iDAS is the most common type of DAS infrastructure.
What is the Difference Between Outdoor DAS (oDAS) and Indoor DAS (iDAS)?
Apart from the obvious difference that iDAS is for indoors and oDAS is for outdoors, there are a few critical differences between the two systems. Let us examine what they are:
Indoor DAS (iDAS) - What You Need to Know.
- iDAS is essentially about sending multiple signals through a single fiber. Using as few fibers as possible helps to minimize the cost of the system.
- iDAS does not require high RF power. This means it can work with even weak cellular signals and make them strong enough to improve mobile connectivity for those inside the building.
- iDAS makes use of RF diplexers to separate different technologies such as GSM, AWS and PCS from each other.
- iDAS solutions are more common than oDAS, which we discuss next. They are also much easier to install and deploy.
Outdoor DAS (oDAS) - What You Need to Know.
- oDAS improves the wireless coverage in outdoor environments. It is used in parking lots, shopping malls, large stores, colleges, universities and music concerts and so on.
- What oDAS does is to provide you with a seamless and unbroken coverage. It supports multiple wireless technologies such as Public Safety bands, Wi-Fi, GSM and more.
- oDAS is more difficult to deploy compared to iDAS. It has a higher level of complexity built into the system.
- oDAS makes use of Remote Radio Heads (RRHs), while iDAS uses RUs. The RRH nodes are placed in weatherproof enclosures in public areas for expanding coverage.
- oDAS has higher power requirements than iDAS.
Are you looking for an iDAS or oDAS Systems Deployment Service?
SignalBooster.com delivers both indoor and outdoor DAS solutions. We're a DAS Deployment Service that caters mainly to iDAS services but offer oDAS services on a case by case basis depending upon its size and complexity.
We're experienced at designing and deploying indoor and outdoor DAS nodes on your existing infrastructure. We make sure to install these nodes as unobtrusively as possible, so that they cannot be distinguished from the surrounding building material.
We work closely with our clients to enhance wireless voice and data even in remote areas. We're closely involved with several local communities and have formed a partnership with many carriers to expand coverage in hard-to-reach locations.
Our DAS Deployment Service includes everything from construction repair, site acquisition, doing the paperwork, obtaining permissions from the concerned authorities and DAS 24/7 monitoring and maintenance of the system.
If you have any questions on how we can assist you in developing an Indoor or Outdoor DAS network, please contact us.
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