It depends on type of bridge antennas you used. Since this model came with RP-TNC connectors, you can choose few types of the 2.4 GHz Bridge Antennas that came with RP-TNC Connectors. Others are N-Type, which cannot be used with this AP.
Antenna ------------ 802.11b range ------------ 802.11a range
AIR-ANT2506 -------- 1.66 miles (2.66 km) ----- 0.21 miles (0.34 km)
AIR-ANT24120 ------- 7.92 miles (12.75 km) ---- 1.0 miles (1.6 km)
AIR-ANT2414S-R ----- 8.89 miles (14.30 km) ---- 1.26 miles (2.02 km) ---> ***
AIR-ANT1949 -------- 11.19 miles (18.01 km) --- 1.41 miles (2.27 km)
AIR-ANT3338 -------- 20.1 miles (32.33 km) ---- 4.46 miles (7.17 km)
More details at:
http://www.cisco.com/en/US/products/ps6521/products_data_sheet09186a008022b11b.html
*look under "2.4 GHZ BRIDGE ANTENNAS".
HTH
AK
