UIP518.71 – 40° Sector MIMO Antenna for MikroTik RouterBOARD

The UIP518.71 is a professional 40° sector MIMO antenna designed for MikroTik RouterBOARD RB911, RB912 and older models such as the RB411. It is also compatible with Ubiquiti (UBNT) OEM boards removed from their original plastic enclosures.

The antenna is intended for high-capacity wireless base stations where multiple sector antennas are installed on the same mast. Its 40° horizontal radiation pattern has been optimized for minimum side lobes, allowing efficient sectorization and reduced interference between adjacent sectors. In many installations, replacing a conventional sector antenna with the UIP518.71 results in a significant increase in network throughput and overall system capacity.

Electrical Properties	UIP 518.71 - RB411 , RB711 , RB9xx
Frequency Band [MHz]	5150 – 5850 MHz
VSWR	1.5
Isolation between connectors	40 dB
Gain	18 dBi
Impedance	50
Polarization	MIMO - dual H+V
Vert. unit -3dB (-6dB) beam width Eplane /Hplane	9° (13°) / 37° (53°)
Hor. unit -3dB (-6dB) beam width Hplane /Eplane	10° (15°) / 35° (51°)
Maximal power [W]	10
Connector	2xSMA-f

Mechanical Properties
Material of antenna radome	UV stable copolymer ABS-PMMA
Radome color	white
height/width/thickness [ mm ]	357 / 180 / 40
Weight	1.9 kg
Max. wind speed	200 km/h
Mast mounting	20 - 77 mm
Box material	AL alloy
Box dimension	RB411, RB711,RB9xx

Accesories
Connection cables	2xRG316 SMAm-MMCX

Key Features

40° sector antenna for the 5 GHz band
Designed for MikroTik RB911, RB912 and RB411 RouterBOARDs
Compatible with Ubiquiti (UBNT) OEM boards
Optimized radiation pattern with very low side lobes
Excellent isolation between MIMO ports
Low VSWR across the operating frequency range
Precision CNC-machined aluminum enclosure
Excellent RF shielding for the RouterBOARD electronics
High protection against water ingress and harsh outdoor environments
Quality-controlled manufacturing for consistent electrical performance

The rugged CNC-machined aluminum enclosure provides excellent electromagnetic shielding while protecting the electronics from moisture and harsh environmental conditions. The antenna has been proven in thousands of outdoor installations and is widely deployed by professional wireless Internet service providers (WISPs), delivering reliable, maintenance-free operation over many years.

The current production version is supplied with an increased-height enclosure lid, providing additional space for the latest generations of MikroTik RouterBOARDs and newer electronic assemblies.


Radiation pattern	Radiation pattern
V unit Eplane 5.7GHz	V unit Hplane 5.7GHz

Radiation pattern	Radiation pattern
H unit Eplane 5.7GHz	H unit Hplane 5.7GHz