Cisco Cisco 1900 2900 3900 Series 4-Port Gigabit Ethernet HS-WIC with PoE Installation Guide
7
Cisco Multiband Omnidirectional Panel-Mount Antenna (3G-ANTM-OUT-LP)
OL-17930-01
Overview
shows the H-plane radiation pattern at 1710 to 2170 MHz for the 3G-ANTM-OUT-LP antenna.
Figure 4
H-Plane Pattern at 1710 to 2170 MHz