Diamond Original base antenna-Japan double band.

Characteristics:
Connector: N-J
Frequency: 144/430 MHz
VHF gain: 6.5 dB
UHF gain: 9.0 dB
Max power: 200 W FM (Total)
Impedance: 50 ohms
VSWR: Less than 1.5: 1
Wind speed: 50m / sec
Maximum accepted diameter: 30 mm to 62 mm
Length: 3.1m
Weight: 1.5 kg
Wavelength: 2 x 5/8 wave C-Load (144 MHz); 5 x 5/8 wave C-Load (430 MHz)