CUSHCRAFT - AR-270B - DUAL BAND EXTENDED RINGO VERTICAL ANTENNA - HIGH GAIN 5.5 dB 144-148 MHz / 7.5 dB 430-450 MHz

This model gives very high gain with a low angle of radiation and it is only 7.7 feet (2.35 m) high.
The AR270B is computer optimized with two 5/8 wavelength collinear elements on 2 meters and four 5/8 wavelength elements on 70 cm. It is broadbanded for minimum SWR on both bands.
It is easy to assemble with three rugged aluminum tubing sections, a durable mast mount and factory sealed coils for best performance.

SPECIFICATIONS
Model AR-270B
Frequency, MHz 144-148 430-450
VSWR 1.2:1 Typical
2:1 Bandwidth in MHz >4 >15
Gain, dB 5.5 7.5
Power Rating, Watts FM 250 250
Horizontal Radiation Pattern, Degrees 360 360
Height, ft (m) 7.7 (2.3)
Mast Size Range, in (cm) 1.25-2.0 (3.2-5.1)
Radial Length, in (cm) 6.75 (17.1)
Wind Load, ft2 (m2) 0.47 (0.044)
Weight, lb (kg) 2.4 (1.1)