Black Box MWU2000-X21 - Manual (Page 24)

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2.048Mbps Wireless Modem
SALES: 0118 965 5100
Figure 2-3. Medium Gain 12dBi Antenna
Medium Gain 18dBi Antenna (Uni-18)
This medium gain antenna has a medium beamwidth (14 degrees) which increases the
sensitivity to inaccurate alignment, but decreases the influence of multipath propagation
(fading). It is intended for outdoor installations over medium to long distances. It is probably
the best choice for most medium to long range applications. UNI-18 Antenna dimensions are:
41 x 51 x 38 cm. (16 x 20 x 15 in.).