Supersized Ultimate DualBand 2m-70cm Antenna 2m70cm41DX-2C

Awesome gain on both 144 and 432 MHz with Ultimate DualBand 2m-70cm Antenna 2m70cm41DX-2C. 13 elements on 2m will be enough to work EME with just 50W. 28 elements on 70cm is more than enough to dig any weak terrestrial or EME signals.

 

Ultimate DualBand 2m-70cm Antenna 2m70cm41DX-2C Appearance:

 

What does 2m70cm41DX-2C mean?

• 2m band – 144 – 145 MHz with low SWR on any frequency.
• 70cm band – frequency range 432 to 434 MHz with low SWR
• 41 – 41 elements. 13 on 2m and 28 on 70cm band with excellent gain. Comparable to two monoband antennas
• DX – Intended for use in DX hunting or catching super weak EME signals
• 2C – 2Connectors. Each band has its own connector. You can connect transceivers like the IC-9100 on both 2m and 70cm bands with two cables.

With less than 100W, with this 2m70cm41DX-2C dual band antenna, you can work many EME stations.

 

2m Electrical Specifications of Ultimate DualBand 2m-70cm Antenna 2m70cm41DX-2C

Frequency Range: 144 – 145 MHz
Free Space Forward Gain: 16 dBi
Front-to-Back Ratio: 34 dB
-3 dB Horizontal Beamwidth: 30.9°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 1500 W
Matching Method: Direct feed through common mode choke (current balun)
Connector: “N”
Coupling to 70cm: -40dB

 

Ultimate DualBand 2m-70cm Antenna 2m70cm41DX-2C 2m Azimuth Radiation Pattern

 

2m Mechanical Specifications of 2m70cm41DX-2C

Number of Elements: 13
Element Diameter: 8 mm Aluminum tube
Dipole Diameter: 8 mm Hard Copper tube
Longest Element: 1035 mm
Element Mounting Position: Below the boom
Balun and Connector: Included

 

70cm Electrical Specifications of Ultimate DualBand 2m-70cm Antenna 2m70cm41DX-2C

Frequency Range: 432 – 434 MHz
Free Space Forward Gain: 18.5 dBi
Front-to-Back Ratio: 34 dB
-3 dB Horizontal Beamwidth: 19.9°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 850 W
Matching Method: Direct feed through common mode choke (current balun)
Connector: “N”
Coupling to 2m: -30dB

 

2m70cm41DX-2C 70cm Azimuth Radiation Pattern

 

70cm Mechanical Specifications of Ultimate DualBand 2m-70cm Antenna 2m70cm41DX-2C

Number of Elements: 28
Element Diameter: 4 mm Aluminum rod
Dipole Diameter: 8 mm Hard Copper tube
Longest Element: 340 mm
Element Mounting Position: Above the boom
Balun and Connector: Included 

Common Mechanical Specifications

Boom Length: 7.93 m
The overall number of elements: 41
Boom Size: Tapered Boom 20x20mm, 30x30mm, 40x40mm different wall thickness
Number of Boom Pieces: 6
Guy Rope Support: Yes, Included
Mounting Mast Diameter:43 – 70 mm 1-11/16″ – 2-3/4″ OD
Survival Wind Speed: 150 km/h
Transportation Length: 1.49 m
Net Weight: 10,5 kg

 

Dipoles View on EXtreme power 2m70cm41DXE-2C Ultimate DualBand 2m-70cm Antenna 2m70cm41DX-2C

The old name of the antenna was 2m70DX41-2Conn

 

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 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 and are mechanically constructed much better than any antennas from other manufacturers.

 

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