World’s Best 70cm 42elements CROSS DX EME Antenna 70cmCROSS42DX

Exemplary good 70cm 42elements CROSS DX EME Antenna 70cmCROSS42DX. Super low noise characteristics and high suppression of all side lobes. Devoted for 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.

 

70cm 42elements CROSS DX EME Antenna 70cmCROSS42DX Appearance:

 

What does 70cmCROSS42DX mean?

• 70cm – 70cm band – 432-434 MHz
• CROSS – CROSS Yagi antenna has horizontal and vertical elements – separated on a single boom, the antenna is mounted in a “+” format
• 42 – 42 elements, 21 elements for horizontal polarization, and 21 elements for vertical polarization
• DX – For use in the DX part of the band 432-434MHz for EME and DXing

 

Electrical Specifications of 70cm 42elements CROSS DX EME Antenna 70cmCROSS42DX

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”

 

70cm 42elements CROSS DX EME Antenna 70cmCROSS42DX Azimuth Radiation Pattern

 

Mechanical Specifications of 70cm 42elements CROSS DX EME Antenna 70cmCROSS42DX

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
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
Net Weight: 6 kg
Gross Weight: 7.9 kg
Transportation Length: 1.2 m

 

Dipoles and balun view on 70cmCROSS42DX

 

Ultimate EME and DX system made by Ian W6TCP. 8 x 42elements 70cmCROSS42DX
Gain 27.2dBi

With the best possible way of coaxial cable lead.

 

Excellent 70cm EME CROSS system made by Jay N1AV. Consists of 8 x 42elements 70cmCROSS42DX . Gain 27.2 dBi

 

To change the polarization in a system with CROSS antennas, it is best to use the 70cm CROSS Antenna 1200W Polarization Switch H-V-RHCP. Horizontal, Vertical or RHCP.

 

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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