World Biggest 70cm Low Noise Antenna 70cm41DXD Highest G/T

The highest and best G/T was obtained at the World Biggest 70cm Low Noise Antenna 70cm41DXD. If you want the best 70cm antenna money can buy, you’ve come to the right place. Maximum gain and F/B antenna. In competitions at better locations, an ODX of over 1000km is possible with one such antenna. Equally good for UHF contests or EME work. This is a contest-winning antenna with superior performance, not calculated with EZNEC, which yields false performance and false G/T, but with the real and best possible gain and G/T calculated with state-of-the-art full 3D EM Simulation Software. Ideal for EME, Q65, and competitions. The best G/T antenna compared to all other antennas in the boom length range up to 12m.

 

World Biggest 70cm Low Noise Antenna 70cm41DXD Appearance:

 

What does 70cm41DXD mean?

• 70cm – 70cm band
• 41 – 41 elements
• DX – Covers DX part of the 70cm band 432-434MHz with low SWR
• D – Boom parts up to 198cm for DHL Express or TNT Economy transport

 

World’s Biggest 70cm Antenna 70cm41DXD Azimuth Radiation Pattern:

 

Electrical Specifications of World Biggest 70cm Low Noise Antenna 70cm41DXD

Frequency Range: 432 – 434 MHz
Free Space Forward Gain: 22 dBi
Front-to-Back Ratio: 40 dB
-3 dB Horizontal Beamwidth: 15.7°
-3 dB Vertical Beamwidth: 15.95°
G/T for Tsky=27K Tearth=1800K: +11.1 dB
Polarisation: Horizontal
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 850W (more by request)
Matching Method: Direct feed through common mode choke (current balun)
Connector: “N” or (or 7/16 DIN by request)

 

Power version of World Biggest 70cm Low Noise Antenna 70cm41DXD

“E” – Extra power 7/16 DIN Input connector 7mm SM250 Teflon balun cable: 1500W 70cm41DXDE

 

World’s Biggest 70cm Low Noise Antenna 70cm41DXD Elevation Radiation Pattern:

 

Mechanical Specifications of the Biggest 70cm Low Noise Antenna 70cm41DXD

Number of Elements: 41
Element Diameter: 4 mm Aluminum rod
Dipole Diameter: 8mm Hard Copper tubing with a plastic coating
Longest Element: 340 mm
Element Mounting Position: Below the Boom
Balun and Connector: Included
Boom Length: 12 m
Tapered Boom: 40x40mm, 30x30mm, 20x20mm
Number of Boom Pieces: 8
Turning Radius: 6.8m
Guy Rope Support: Double support (four ropes)
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Bracket: Stainless Steel AISI 316L (A4)
Clamp: 2 x M12 Stainless Steel
Survival Wind Speed: 120 km/h
Net Weight: 17.5 kg
Gross Weight: 19.5 kg
Transportation Length: 2 m

 

Measured SWR on produced Antenna 70cm41DXD:

 

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, significantly outperforming those designed with the EZNEC program.
• No tuning antennas.
  Before dispatch, we assemble and test each antenna’s characteristics. No need to tune any element to get a perfect SWR on the intended frequency range. Everything is pre-tuned.
• Easy to set up.
  Everything is labeled, just put a number to a 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.

 

Short video of 70cm41DXD (PA432-41-12DGP) Yagi antenna

If you want a 15m or 18m boom versions with even more gain – ask

All 70cm antennas are here: 70 cm antennas