Model: HH-509F
Center frequency: 144/430 MHz
Input Impedance: 50Ω 
VSWR: <1.5
Gain: 3dBi (144 MHz )/ 5dBi (430 MHz )
Polarization: Vertical
Radiation direction: omnidirectional
Lightning protection: DC ground
Power Capacity: 50 W
Height: 700±5 mm
 
Connector: SL16-K (PL259)
Bottom diameter: Ø21.5±0.2 mm
Radiation oscillator material: copper