| Feature | Passive DAS | Active DAS | | --- | --- | --- | | Components | Coaxial cables, splitters, couplers, antennas | Fiber/ethernet remotes, head-end unit (HEU) | | Max distance | ~100–150 m (due to cable loss) | Kilometers (fiber) | | Suitable for | Small to medium buildings | Large venues, tunnels, campuses | | MIMO support | Difficult (separate coax runs) | Native (fiber carries multiple streams) |
: Primarily focused on voice and basic data (GPRS/EDGE). | Feature | Passive DAS | Active DAS
Calculating every component from the base station to the antenna to ensure signal strength (dBm) and Effective Isotropic Radiated Power (EiRP) meet targets. Indoor radio planning is essential for several reasons:
The book serves as a primary reference for , which are the backbone of modern indoor coverage. antennas | Fiber/ethernet remotes
Indoor radio planning is essential for several reasons: