Pierson Wireless Services

DAS Dictionary

General DAS Terms
700 Wireless spectrum band used to transmit data and voice services. It uses frequencies 700 MHz.
800 Wireless spectrum band used to transmit data and voice services. It uses frequencies 800 MHz.
Personal Communication Services (PCS) Wireless spectrum band used to transmit data and voice services. It uses frequencies 1900 MHz.
Advanced Wireless Services (AWS) Wireless spectrum band used to transmit data and voice services. It uses frequencies 1700 MHz and 2100 MHz.
Bi-Directional Amplifier (BDA) Devices that receive, boost and amplify over-the-air signals in both directions from tower to device and from device to tower.
Base Transceiver Station (BTS) Radio-Frequency signal source device. Usually a high powered device connected to the operator’s network.
Distributed Antenna System (DAS) DAS is a network of antennas designed to provide coverage (wireless signals) to an area with little or no otherwise coverage. This could be inside a building or a small defined geographic region.
Downlink Signal direction from tower to device.
Head-End Location where the various DAS nodes are aggregated and the DAS is connected to the signal source.
iDAS DAS deployed in an indoor setting.
LTE (Long-term Evolution) Global network standard for 4G high speed data network.
oDAS DAS deployed in an outdoor setting.
PIM (Passive Intermodulation) Interference generated by transmit signals when they encounter non-linear junctions or materials in the signal path.
Remote DAS element which converts and amplifies the signal. The remote is typically located close to the antennas. Remote can also refer to the location this element is installed.
Small Cell Radio Frequency source device that’s a low power alternative to the BTS. They can be directly connected to antennas or to DAS.
Uplink Signal direction from device to tower.
WLAN (Wireless Local Area Network) Local Network with limited geographical coverage typically not controlled or affiliated with a licensed network operator that links two or more devices using wireless methods.
WWAN (Wireless Wide Area Network) Vast regional or national wireless network typically controlled or affiliated with a license network operator.