1.25m 222MHz CROSS DX EME Antenna 222CROSS30DX

Super low noise, extreme gain 1.25m 222MHz CROSS DX EME Antenna 222CROSS30DX for ITU Region 2. The highest possible suppression of all side lobes and the best G/T was achieved with about 15 days of optimization. Devoted for low noise EME and DX hunting. With this antenna, 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.

 

1.25m 222MHz CROSS DX EME Antenna 222CROSS30DX Azimuth Radiation Pattern

 

What does 222CROSS30DX mean?

• 222 – 222MHz – 1.25m  band
• CROSS – CROSS Yagi antenna has horizontal and vertical elements – separated on a single boom, the antenna is mounted in a “+” format
• 30 – 30 elements, 15 elements for horizontal polarization, and 15 elements for vertical polarization
• DX – For use in the DX part of the band 222 – 224MHz.

 

1.25m 222MHz CROSS DX EME Antenna 222CROSS30DX appearance

 

Electrical Specifications of 1.25m 222MHz CROSS DX EME Antenna 222CROSS30DX

Frequency Range: 222 – 224 MHz
Free Space Forward Gain: 16.5 dBi
Front-to-Back Ratio: 35 dB
-3 dB Horizontal Beamwidth: 30.1° For Horizontal Polarization
-3 dB Vertical Beamwidth: 31.8° For Horizontal Polarization
Polarization: Horizontal and Vertical (RHCP, LHCP with phase shift)
Distance Between Dipoles: 337 mm
Degrees: 90°
Isolation Between Antennas: More than 30 dB
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 2 x 1300W (more by request)
Matching Method: Direct feed through Teflon RG142 common mode choke (current balun)
Connectors: 2 x “N” (7/16DIN by request)

 

Power input option by order of 222CROSS30DX

“E” – Extra power 7/16 DIN Input connector SF250 7mm Teflon balun cable: 2x 1800W – 222CROSS30DXE

 

1.25m 222MHz CROSS DX EME Antenna 222CROSS30DX Elevation Radiation Pattern

 

Stacking distances for 222CROSS30DX in “H” configuration

Horizontal: 2400 mm
Vertical: 2400 mm

 

Mechanical Specifications of 1.25m 222MHz CROSS DX EME Antenna 222CROSS30DX

Number of Elements: 30 (15 + 15)
Element Diameter: 8 mm Aluminum tube
Dipole Diameter: 8 mm Hard Copper tube plastic coated
Longest Element: 665 mm
Element Mounting Position: Two Sides
Balun and Connector: Included
Boom Length: 6.7 m
Single Antenna Length: 6.3 m
Boom Size: Tapered Boom 40×40 mm, 30×30 mm, 20×20 mm
Number of Boom Pieces: 6
Turning Radius: 4.3 m
Guy rope support: Yes, included
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Clamp: 2 x M8 Stainless Steel
Survival Wind Speed: 160 km/h
Net Weight: 8.8kg
Gross Weight: 10.3 kg
Transportation Length: 1.2 m

 

222MHz CROSS DX EME Antenna 222CROSS30DX Dipoles View

 

Horizontal or vertical mount of 1.25m 222MHz CROSS DX EME Antenna 222CROSS30DX

By ordering a specially designed rotatable bracket that allows universal bayed installation (Horizontal stack) or mounts on a vertical mast (Vertical stack). That includes a separate bracket for guy rope support + “Rotatable bracket”. On the picture.

 

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 characteristics 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.
Everything is included in the antenna box: Antenna, balun with connector, and bracket. Yours is to assemble and have fun!

• Mechanical properties

We believe that our antennas are the world’s strongest and are mechanically constructed much better than any antennas from other manufacturers.

 

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