Cabletron Systems 802.11 - Manual (Page 19)

Site Preparation Guide
13
RoamAbout 7-dBi Omni-Directional Antenna
The RoamAbout 7-dBi Omni-Directional Antenna is a broadband antenna for the 2.4
GHz frequency band featuring an omni-directional pattern with a nominal gain of 7
dBi.
This antenna is encapsulated in a weatherproof protective covering. With the hardware
provided, this vertically-polarized antenna can be mounted on an antenna mast with an
outside diameter of up to 51mm (2 in).
Mechanical
• Size 45.7 cm (18 in)
• Mounting method Clamps to vertical mast with outside
diameter up to 51mm (2 in)
Cable
• Type RG-58A/U, 50 ohm low-loss coax
• Length 15 cm (6 in)
• Color White
Connector
• FCC Countries Reverse Polarity-N (male)
• ETSI Countries Standard-N (female)
• France Standard-N (female)
• Japan Standard-N (female)
Electrical
• Frequency Range 2.4 GHz
• VSWR Less than 2:1 Nominal
• Nominal Impedance 50 Ohms
• Gain 7-dBi
• Polarization Linear Vertical
Antenna Environment
• Operating Temperature +60°C (140°F) - 40°C (-40°F)
• Wind/survival (mph) At least 128 km/h (80 mph) a
a. At least 104 km/h (65 mph) with 1.25 cm (0.5 in) ice.
• Wind Surface Area 7.56 square cm (0.248 square feet)