User's Manual

CrossFire iDAS – All-Digital Transport System
User Guide
© SUNWAVE SOLUTIONS LIMITED 2017 8 Version 1.0
5.3. Antenna
According to installation site conditions and coverage requirement, determine proper antenna installation configuration
including distance of Tx and Rx antennas, antennas’ angle and so on.
External antennas – No limitation for available external antennas with respect to requirement as follow:
Directional or Omni Directional
Wideband antennas supporting a range of 700 MHz to 2700 MHz or any single band class between 700 MHz and 2700MHz
Gain: not exceed 4 dBi
Impedance: 50 Ohm
The isolation between Tx and Rx antennas: ≥45 dB
Note: NPRU is capable to support up to 4 frequency bands. Therefore, MIMO (2 antennas – one for Tx port and another one
for Rx port) is highly recommended.
 Antenna Installation Guideline
The antennas should be deployed at proper location to avoid unexpected interference and metallic obstruction.
According to coverage requirement, install the antennas at designated height and turn them at appropriate angle to service
area.
The antennas connected to NPRU must be installed protection distance over 30cm for human body safety which should
meet FCC standard.