4m 2elements Antenna 4m2DX

4m 2elements Antenna 4m2DX

85,00 

4m 2elements Antenna 4m2DX 70 – 70.5 MHz. For portable and stationary use.

SKU: 0400 Category:

4m 2elements Antenna 4m2DX 70 – 70.5 MHz

Small portable 4m 2elements Antenna 4m2DX designed for a 4-meter band. This 70 MHz has the best performance in the class length of 0.8m. Direct 50Ohm feed. The antenna is constructed with the best quality materials for the best mechanical properties and longevity. All screws, nuts, and bolts are stainless steel.  In the box is everything included. Antenna + balun with connector + bracket… Elements are tapered to reduce vibrations at the high winds. Since this Ham Radio antenna has 2 elements it is very easy to set up. The antenna is very good for field days since it is lightweight or even for permanent setup. The starting element diameter is 12 mm, the middle part is 10mm, and 8mm ends. Tapered elements will reduce the wind load. This Ham Radio antenna has the widest possible azimuth radiation pattern. 70 MHz 2-element Yagi is good for vertical stacking in a permanent setup since this wide angle allows listening to ham radio stations without frequent rotation movement. It is good for E-sporadic season since when there is an opening you don’t need much gain for it.

 

4m 2elements Antenna 4m2DX appearance:

4m 2elements Antenna 4m2DX

 

 

What does 4m2DX mean?

4m4m band antenna
22 Elements
DX – Intended for use from 70-70.5MHz with excellent SWR

Electrical specifications of 4m 2elements Antenna 4m2DX

Frequency Range: 70 – 70.5 MHz
Free Space Forward Gain: 6.2 dBi
Front-to-Back Ratio: 11 dB
3 dB Horizontal Beam-width: 70°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohm
SWR Across Entire Band: < 1.2
Maximum Power Input: 850 W (or more by request)
Matching Method: Direct feed through common mode choke (current balun)
Connector: “N” default (SO 239 or 7/16 DIN by request)

 

Power input options by order of 4m 2elements Antenna 4m2DX

“P” – Power version “N” Input connector RG142 5mm Teflon balun cable: 1500W 4m2DXP
“E” – Extra power 7/16 DIN Input connector SF250 7mm Teflon balun cable: 2500W 4m2DXE
“EX” – EXtreme power 7/16 DIN Input connector RG115 10mm Teflon balun cable: 7500W 4m2DXEX

 

Mechanical Specifications of 4m 2elements Antenna 4m2DX

Number of Elements: 2
Elements Diameter: 12 mm, extensions 10 mm
Dipole Diameter: 12 mm, extensions 10 mm
Longest Element: 2.2 meter
Element Mounting Position: Below the boom
Balun and Connector: Included
Boom Length: 0.8 meter
Boom Size: 20 x 20 mm
Turning Radius: 1.2 meter
Number of Boom Pieces: 1
Guy rope support: Not necessary. Strong boom.
Mounting Mast Diameter: 30 – 50 mm 1-1/4 – 2″ OD
Clamp: M6 Stainless Steel
Survival Wind Speed: 160 km/h
Net Weight: 1.1 kg
Gross Weight: 1.9 kg
Transportation Length: 1.2 meter

SWR measurements of 4m 2elements Antenna 4m2DX

4m 2elements Antenna 4m2DX 70 - 70.5 MHz SWR measurements

 

The old name of the antenna was PA70-2-08A

Video from Peter G3OJV. Great video about his Ham Radio experience and our PA70-2-08A antenna can be seen here: PA70-2-0.8A antenna + his 50-year 4m story.

 

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.

 

Click here to look up all 4-meter antennas: 4m antennas

 

Weight 1,8 kg
Dimensions 119 × 11 × 10 cm

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