SBB-224/SBB224NMO Tri-Band Antenna  

Tri-Band 146/220/446MHz
Gain & Wave:
146MHz 2.15dBi
1⁄4 wave
220MHz 3.5dBi
5⁄8 wave
446MHz 6.0dBi
5⁄8 wave x 2
VSWR: 1.5:1 or less
Max Power: 100 watts
Length: 36” 
Connector:
Gold-Plated
PL-259 or NMO Base