WB-SuperStinger-2.4H by Wireless Beehive 2.4 GHz Vertically Polarized Super Stinger (12 dBi) Super-Stinger® Passive Gain Antenna for 2.4 GHz SMs Slip on an extra 11 dB @ 2.4 GHz Extend your range to 12 miles* without using a large reflector Boost signal levels for marginal customers Speed up your installs Narrows the pattern to 17 degrees Lowers jitter The Fine Print: We believe the RSSI/dBm readings in the Motorola Canopy equipment to be non-linear. If you slip a stinger onto an SM you may or may not see a change of 11dB in received signal strength. Users report widely varying gain increases in the range of 9 to 14 dB. What you will see and can verify is a range increase. We have had 2.4 GHz Stingers work out to a distance of 18 miles. However, a realistic expectation is solid performance at 12 miles.* *All range testing and estimates assume a Cyclone AP was used. Patent Pending Specifications: Polarity V or H Available - Specify when ordering Gain 11 peak increas over bare SM 19 dBi nom total antenna system gain Beamwidth (3dB) 17 degrees design Freq 2.415 Ghz - 2.4575 Ghz Wind Load 26.6 lbs additional over bare SM @ 93 MPH F/B Ration >20 dB (avg) Cross Pol Reject >20 dB Weight .85 kg