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This antenna is specifically made to be installed vertically, with the elements perpendicular to the ground. This orientation sets the beam to vertical polarization which is ideal for operations with handheld, mobile and repeater stations.
Each 2 Meter FM Yagi driven element is fed with an efficient beta match. Each parasitic element is solid 3/16 in. aluminum rod mounted through the boom. Their boom clamp accepts up to a 2 inch OD mast.
VHF Beam Antenna Type: Yagi
VHF Beam Antenna Elements: 3
Antenna Power Rating: 500 W PEP
Beam Antenna Boom Length: 43.50 in.
Beam Antenna Maximum Boom Diameter: 1.250 in.
VHF Beam Antenna Longest Element: 40.250 in.
Beam Antenna Turning Radius: 43.50 in.
Mast Mounting Clamp Minimum: 1.625 in.
Mast Mounting Clamp Maximum: 2.063 in.
Wind Surface Area: 0.446 sq. ft.
Beam Antenna Frequency Coverage: 144-148 MHz (2 Meters)
Feedpoint Impedance: 50 ohm
Feedpoint Match Type: Hairpin, balanced
Antenna Feedline Connection Type: Terminal studs
Antenna Weight: 2.20 lbs.
Notes: A coaxial balun matches the 200 ohm antenna impedance to your 50 ohm feedline. Balun is supplied with antenna.
Beam Antenna Gain: 8.3 dBi
Beam Antenna F/B (dB): 20.0 dB
E-Plane 3 dB Beam width: 95 degrees
H-Plane 3 dB Beam width: 60 degrees
Bandwidth at 2:1 SWR: 4.0 Mhz
Typical Beam Polarization: Vertical (FM)