Simplistically Active DAS includes some element of signal amplification between the cell phone signal booster and the antennas distributed around the building. Active DAS may also include a technology called RF Over Fibre whereby the received signal form the cell tower, downlink, is used to modulate a light source. The modulated light signal is then transmitted through an optical fibre link often to some form of managed hub that may convert the light signal back to RF or will further distributes the signal to either some form of independent Remote Access Point where teh light signal is converted abck to RF , or to an active antenna unit that will convert the signal back to RF.
The advantage of the optical link means that the fibre cable between the signal booster and the optical converter can be many kilometers long with minimum to no signal loss along the length of the fibre cable.
Consequently when the signal is converted back from light to RF the signal power is effectively the same level as directly transmitted from the cell tower. Optical links as long as 6 km (approx. 3.6 miles) can be achieved. For this reason Active DAS is classically used where coverage is required for larger areas.
The design of an Active DAS is generally more complex than a Passive DAS. Active DAS is generally a more expensive solution, but has other operational benefits beyond a Passive DAS. For example, it is easier to add additional signal suppliers to an active DAS without any additional infrastructure changes. An Active DAS is easier to expand within the building envelop with minimum effect on the existing signal distribution throughout the building.
No High Pressure Sales
We don't use high pressure sales teams to con you into buying a product that you don't need, or worse still a product that simply wont work in your building.
We will work with you and demonstrate to you the best solution that will meet your needs. By the end of the pre-sales exploration you will know, in precise detail, the best solution and the level of coverage you will get throughout your building. See Building Operators Guide to DAS to learn more about how we will work with you.
When you buy a Telcosat repeater we will GUARANTEE cell phone coverage in your building. Who else can make that claim?
To learn more about the types of DAS and which solution might be the best for you contact Telcosat now on:
CANADA + 403 291 4031