Cushcraft AR-270B - 2 meter/70 cm 3.0/5.5 dB Dual Band Ringo Vertical Base Antenna.
Cushcraft AR-270B Dual-Band Ringo vertical antennas are designed to give top performance and trouble-free service. They are computer-optimized with two 5/8 wavelength collinear elements on 2 meters and four 5/8 wavelength elements on 70 cm and broad banded for minimum SWR on both bands. Cushcraft AR-270B Dual-Band Ringo vertical antennas are easy to assemble with three rugged aluminum tubing sections, a durable mast mount, and factory sealed coils for best performance.
Vertical Antenna Height: 7.7 ft.
Antenna Material: Aluminum
Antenna Power Rating: 250 W
Antenna Connector: UHF female, SO-239
Mast Mounting Type: Clamp-on
Mast Mounting Clamp Minimum: 1.250 in.
Mast Mounting Clamp Maximum: 2.000 in.
Wind Surface Area:0.470 sq. ft.
Band Coverage: 2 meters, 70 centimeters
Frequency Range: 144-148, 430-450
Vertical Antenna Gain: 5.5 on 144-148, 7.5 on 430-450
Bandwidth at 2:1 SWR: Over 4.0 MHz on 144-148, Over 15 on 430-450