Supersized Ultimate DualBand 2m-70cm Antenna 2m70DX41-2Conn
Awesome gain on both 144 and 432 MHz with Ultimate DualBand 2m-70cm Antenna 2m70DX41-2Conn. 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 2m70DX41-2Conn for DXing, contesting, and EME
What does 2m70DX41-2Conn mean?
2m band – 144 – 145 MHz with low SWR on any frequency.
70cm band – frequency range 432 to 434 MHz with low SWR
DX – Intended for use for DX hunting or catching super weak EME signals
41 – 13 elements on 2meter and 28 elements on 70cm band with excellent gain. Comparable with two monoband antennas
2Conn – Each band has its own connector. You can connect transceiver like IC-9100 on both 2m and 70cm bands with two cables.
With less than 100 W with this 2m70DX41-2Conn dual band antenna, you can work many EME stations.
Dipoles View on 2m70DX41-2Conn Two Band 2meter and 70cm Yagi Antenna. Version with 7/16 DIN connectors for extreme power.
Electrical Specifications of Ultimate DualBand 2m-70cm Antenna 2m70DX41-2Conn
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
Mechanical Specifications of Ultimate DualBand 2m-70cm Antenna 2m70DX41-2Conn
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
Electrical Specifications of Ultimate DualBand 2m-70cm Antenna 2m70DX41-2Conn
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
Mechanical Specifications 2m70DX41-2Conn on 70 cm band
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
2m70DX41-2Conn 144MHz and 432MHz Dual-Band Antenna on 8m Boom Appearance
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: kg
Gross Weight: kg
2m70DX41-2Conn Dual Band 2meter and 70cm Yagi Antenna on 8m Boom For EME and DX Hunting
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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