2.4 GHz Whip and
Omni-Directional Antennas
Whip Antennas:
Standard 3dBi right angle whip antenna with SMA termination, 90mm long.....
Folding 3dBi whip antenna with SMA termination, 105mm long unfolded.....
9dBi whip antenna with SMA termination, 390mm long unfolded.....
2.4 GHz 9 dBi Onmi Directional Antenna 
Omni-240012: 9 dBi gain Omni Directional antenna. Robust
engineered design with  excellent corrosion protection. Measures 1210 x 20mm in size, and unit weighs 4.6Kg (Cubic Weight). Fitted with a 600mm 50 Ohm
down lead terminating in an 'N' male plug. 

Technical Specs: Frequency 2.4 to 2.6 GHz, Maximum power input
100 Watts. 


Antenna Gain...What does it mean???
Click Here for a simplified explanation