HF 10m 4elements Antenna 10m4HD for High Wind Locations

Strong high wind location antenna HF 10m 4elements Antenna 10m4HD for daily and contest work. A flat SWR curve, high gain and excellent front-to-back make this antenna ideal for obtaining satisfaction in any ham radio work. Strong construction with a boom size of 60x60mm and a starting element size of 25mm will ensure resistance to any high winds.

 

HF 10m 4elements Antenna 10m4HD Appearance:

 

What does 10m4HD mean?

• 10m – 10m band. Covers 28 to 29 MHz main band. With a good SWR.
• 4 – 4 elements.
• HD – Heavy-Duty construction could withstand any high winds.

 

Electrical specifications of HF 10m 4elements Antenna 10m4HD

Frequency Range: 28 – 29 MHz
Free Space Forward Gain: 8.5 dBi
Front-to-Back Ratio: 20 dB
3 dB Horizontal Beamwidth: 62.2°
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 (7/16 DIN by request)

 

HF 10m 4elements Antenna 10m4HD Azimuth Radiation Pattern

 

Mechanical specifications of HF 10m 4elements Antenna 10m4HD

Number of Elements: 4
Elements Diameter: Tapered elements starting diameter of 25mm to 8mm
Longest Element: 5.6 m
Element Mounting Position: Below the boom
Balun and Connector: Included
Boom Length: 4.4 meter
Boom Size: 60 x 60 mm
Turning radius: 3.4m
Number of Boom Pieces: 2
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
Clamp: 2 x M12 Stainless Steel AISI 316L (A4)
Survival Wind Speed: 200 km/h
Net Weight: 18kg
Gross Weight: 19.5 kg
Transportation Length: 2.3m

 

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.

 

All HF antennas