70cm 42 elements EME World’s Best CROSS Yagi Antenna 70cm42CROSS

Exemplary good 42 elements EME World’s Best CROSS Yagi Antenna 70cm42CROSS with low noise characteristics and high suppression of all side lobes. Devoted for low noise EME and DX hunting. With these antennas, you will hear extremely weak signals via the Moon with the ability to change polarization. Maximum polarization mismatch is -3dB with just one single H/V relay.

 

What does 70cm42CROSS mean?

70cm – 70cm band – 432-434 MHz
42 – 42 Elements – 21 elements for horizontal polarization and 21 elements for vertical polarization
CROSS – Yagi antenna has both horizontal and vertical elements – separated on a single boom, the antenna is mounted in a “+” format.
Horizontal polarization – conventional mount horizontally polarized elements are parallel to Earth
Vertical polarization – as above but elements are perpendicular to Earth.

 

 

Electrical Specifications of 42 elements EME World’s Best CROSS Yagi Antenna 70cm42CROSS

Frequency Range: 432-434 for DX and low noise EME
Free Space Forward Gain: 18.2 dBi
Front-to-Back Ratio: 36 dB
Polarization: Horizontal and Vertical. RHCP and LHCP with phase shift
Distance Between Dipoles: 173mm
Degrees: 90°
Isolation Between Antennas: More than 28dB
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 2 x 850W for Hpol and Vpol and 1700W for RHCP and LHCP
Matching Method: Direct feed through common mode choke (current balun)
Connectors: 2 x “N”

 

Mechanical Specifications of 42 elements EME World’s Best CROSS Yagi Antenna 70cm42CROSS

Number of Elements: 42 (21+21 elements)
Element Diameter: 4mm Aluminum rod
Dipole Diameter: 8 mm Hard Copper tube plastic coated. Hairpin match
Longest Element: 340 mm
Element Mounting Position: CROSS antenna – 2 Sides
Balun and Connectors: Included
Boom Length: 5.4 m
Boom Size: Tapered Boom 40×40 mm, 30×30 mm, 20×20 mm
Turning Radius: 3 m
Number of Boom Pieces: 5
Guy rope support: No, strong boom
Mounting Mast Diameter: 32 – 70 mm
Clamp: M8 Stainless Steel
Survival Wind Speed: 150 km/h
Wind Load: 0.19 m2
Net Weight: 6 kg
Gross Weight: 7.9 kg
Transportation Length: 1.2 m

 

Dipoles and balun view on 70cm42CROSS

 

70cm CROSS Yagi Antenna 70cm42CROSS Azimuth Radiation Pattern

 

 

Designed to last.

 

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

 

• F/B and G/T superiority.

All antennas have been calculated using state-of-the-art full 3D Electromagnetic Simulation 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 “wire” programs.
Comparison of EM simulation software

• No tuning antennas
  

Before dispatch, we assemble each antenna and test antenna characteristics. That means you may expect exceptionally good electrical and mechanical attributes including low SWR across the designed range immediately after assembling.
No need to tune the dipole, or any other 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. The antenna can be assembled with hand tools in a couple of minutes.
Everything is included in the antenna box: Antenna, balun with connector, and bracket. Yours is to assemble and have fun!

 

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