15 meter 3 elements 21 MHz monobander antenna PA21-3-5HD

Excellent mechanical properties. Direct 50 Ohm feed. Input power is limited by feed line only

Electrical Specifications

Frequency Range: 21 – 21.45 MHz
Free Space Forward Gain: 7.75 dBi
Forward Gain 20m AGL: 13.3 dBi
Front-to-Back Ratio: 26 dB
3 dB Horizontal Beamwidth: 65°
Nominal Input Impedance: 50 Ohm
Maximum SWR at any freq: 1: 1.5
Maximum Power Input: More than 1.5 kW

Mechanical Specifications

Boom length: 5 m
Boom Diameter: 50 mm
Longest element: 7.2 m
No. of elements: 3
Matching Method: Direct feed through a current balun.
Connector: SO239
Turning radius: 4.4 m
Mounting Mast Diameter: 43 – 70 mm
Survival Wind Speed: 150 km/h 
Weight: 30 kg