4m 7elements Antenna 4m7DXP Low Noise Yagi

The best performance 4m 7elements Antenna 4m7DXP.  Low Noise design. The antenna will make sure you can hear very weak signals and give you the extra edge you need in DXing or enjoying the Ham Radio Hobby. Superior gain SWR flatness and front-to-back ratio. Direct 50Ohm feed.

 

4m 7elements Antenna 4m7DXP Appearance:

 

 

What does 4m7DXP mean?

• 4m – 4m band antenna
• 7 – 7 Elements
• DX – Intended for use from 70-70.5MHz with excellent SWR
  
• P – Power version 1500W

 

Electrical specifications of 4m 7elements Antenna 4m7DXP

Frequency Range: 70 – 70.5 MHz
Free Space Forward Gain: 12.6 dBi
Front-to-Back Ratio: 30 dB
3 dB Horizontal Beam-width: 43.5°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohm
SWR Across Entire Band: < 1.2
Maximum Power Input: 1500W
Matching Method: Direct feed through common mode choke (current balun)
Connector: “N” (SO 239 or 7/16 DIN by request)

 

4m 7elements Antenna 4m7DXP Azimuth Radiation Pattern

 

 

Power input options by order of 4m 7elements Antenna 4m7DXP

“E” – Extra power 7/16 DIN Input connector SF250 7mm Teflon balun cable: 2500W 4m7DXE
“EX” – EXtreme power 7/16 DIN Input connector RG115 10mm Teflon balun cable: 7500W 4m7DXEX

 

Mechanical Specifications of 4m7DXP

Number of elements: 7
Element Diameter: Tapered elements. Center tube 12mm, outer 10mm
Longest element: 2.2 m
Element Mounting Position: Below the Boom
Boom Length: 5.85 m
Boom Size: 40 x 40 mm
Number of Boom Pieces: 4
Guy rope support: Yes – Included
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Survival Wind Speed: 150 km/h
Transportation Length: 1.49 m
Antenna Weight: 10 kg

 

The old name of the antenna was PA70-7-6BGP

 

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.

 

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