20m 4el High Gain MonoBand Antenna 20m4HD Wideband

High Gain 20m 4el High Gain MonoBand Antenna 20m4HD with excellent wideband characteristics, gain, and front-to-back ratio. Use this antenna to win any HF contest, or just for Dxing. Direct 50 Ohm feed. Input power is limited by the feed line only.

 

20m 4el High Gain MonoBand Antenna 20m4HD Appearance:

 

What does 20m4HD mean?

• 20m – 20m band, 14-14.35 MHz with super low SWR on any frequency
• 4 – 4 elements – Super strong construction
• HD – Heavy Duty Construction for any strong wind up to 150km/h

 

Electrical Specifications of 20m 4el High Gain MonoBand Antenna 20m4HD

Frequency Range: 14 – 14.35 MHz
Free Space Forward Gain: 8.5 dBi
Front-to-Back Ratio: 26 dB
3 dB Horizontal Beamwidth: 62°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohm
SWR Across Entire Band: < 1.2
Maximum Power Input: 2000 W (more by order)
Matching Method: Direct feed through common mode choke (current balun)
Connector: SO239 Teflon Silver plated or 7/16 DIN by request

 

20m 4el High Gain MonoBand Antenna 20m4HD Azimuth Radiation Pattern

 

Mechanical Specifications of 20m4HD

Number of Elements: 4
Elements Diameter: Tapered elements 35 mm to 8 mm
Longest Element: 11.4 m
Element Mounting Position: Below the boom
Balun and Connector: Included
Boom Length: 8 m
Boom Size: 60 x 60 mm
Turning radius: 7.4 m
Number of Boom Pieces: 4
Guy rope support: Yes, Included Stainless Steel AISI 316L rope 4 mm
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD (by order up to 700mm)
Clamp: 2 x M12 Stainless Steel AISI 316L (A4)
Survival Wind Speed: 150 km/h
Net Weight:  42 kg
Gross Weight:  47 kg
Transportation Length: 2 m

The old name of the antenna was PA14-4-8HD

 

Antennas-Amplifiers Product Benefits. A Major advance in antenna design.

• F/B and G/T superiority.

All antennas have been calculated using state-of-the-art full 3D EM modeling software including the influence of the boom, bracket, baluns, and connectors. The performance of antennas designed using these techniques is exceptional, far better than antennas designed using the EZNEC program.

• No tuning antennas.

Before dispatch, we assemble and test each antenna’s characteristics. No need to tune any element to get perfect SWR on the intended frequency range. Everything is pre-tuned.

• Easy to set up.

Everything is labeled, just put number to number. Everything is included in the box: Antenna, balun, bracket, and guy rope support if needed. Yours is to assemble and have fun!

• Mechanical properties.

We believe that our antennas are the world’s strongest antennas and are mechanically constructed much better than any antennas from other manufacturers.