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6m & 4m DualBand Beam Antenna 11 elements 6m4m11DX-2C Antennas Amplifiers View larger

Antennas Amplifiers

AA-0330-6m4m11DX-2C-2340

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Serbia

6m & 4m DualBand Beam Antenna 11 elements 6m4m11DX-2C Antennas Amplifiers

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Great dual band 6m 4m Antenna 11 elements 6m4m11DX-2C with separate connectors.

One for 50MHz and one for 70MHz band. Spare your free space on tower for another antennas.

Two antennas on single boom behaves as two mono band antennas.

This high gain antenna will produce excellent signals with 59+ reports on both bands. 6m and 4m. Devoted for contesting and DX hunting.

Antennas Amplifiers (AA) equipment is available in backorder only, and will be shipped within 10 to 15 days after the order.

More details

409,92 € tax excl.

Available on backorder only, within 10 to 15 days

Data sheet

6m 4m DualBand Yagi Antenna 5070dx11-2Conn Two Connectors

Antennas-Amplifiers Product Benefits.

  • 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 are exceptional, far better than antennas designed using “wire” programs.
  • 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 move dipole, cut or tune any element to get perfect SWR on intended frequency range. Everything is pre tuned.

That lead also to another very important detail. When assemble and test each antenna is complete with all washers, nuts, bolts guy rope supports etc.
When packing all parts are already on antenna without possibilities to “forget” important parts to put in the box. So you will always receive complete antenna what we tested just before dispatching.

  • Designs that work well in all weather conditions
  • Low SWR and superior G/T, F/B and F/S ratios across the entire bands
  • Excellent mechanical properties
  • High durability, built without compromise

Why all above is very important? Why we do not use free wire programs like EZNEC (Pro), 4NEC2, MMANA-GAL or AO? Like all other producers or simulators do?

EZNEC, 4nec2 or AO producers or simulators puts on the web pages excellent “simulated” antenna patterns  produced by wire programs. Looks good on computer screen. But what about reality?

Elements are not infinitesimally thin.
Boom size is not 0 (zero) mm.
Boom corrections programs exists. But what about accuracy?
Electrical terminals from balun coaxial cable to dipole are probably at least 10 mm long what is not “simulated” 0 (zero) mm. It will lead to worsen SWR or when tuned to good SWR to sharp antenna resonance.
Real antennas are not in free space. They are surrounded by metal parts not calculated in any form by wire programs.

Errors made by amateur programs like EZNEC (Pro), 4NEC2, MMANA-GAL, AO, etc. only for the above examples are unacceptable in these days. They will lead to wrong antenna gain and specially F/B. At least 5-15 dB lower than predicted.
That mean if the antenna is “calculated” for F/B 30 dB it could be anywhere between 15dB to 25dB.
Unfortunately that also mean antenna will have much worse G/T which will lead to bad contest results and poor EME reception. 

This has nothing to do with obtained SWR of 1: 1 on antenna. SWR 1:1 is not related in any circumstances with antenna gain, F/B or G/T.

Electrical Specifications 6m4m11DX-2C on 6m band

Frequency Range: 50-50.5 MHz
Free Space Forward Gain: 10.9 dBi
Front to Back Ratio: 21 dB
-3 dB Horizontal Beam width: 51°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 1000 W
Matching Method: Direct feed through common mode choke (current balun)
Connector: N

6m 4m DualBand Yagi Antenna 5070dx11-2Conn 6m Azimuth Radiation Pattern

Mechanical Specifications 6m4m11DX-2C on 6m band

Number of Elements: 5
Elements Diameter: 12 mm, extensions 10 mm and 8 mm
Dipole Diameter: 12 mm, extensions 10 mm and 8 mm
Longest Element: 3.1 meter

Balun and Connector: Included

6m 4m DualBand Yagi Antenna 5070dx11-2Conn Balun View

Electrical Specifications 6m4m11DX-2C on 4m band

Frequency Range: 70-70.5 MHz
Free Space Forward Gain: 11.2 dBi
Front to Back Ratio: 20 dB
-3 dB Horizontal Beam width: 51.4°
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

6m 4m DualBand Yagi Antenna 5070dx11-2Conn 4m Azimuth Radiation Pattern

 

Mechanical Specifications 6m4m11DX-2C on 4m band

Number of Elements: 6
Elements Diameter: 12 mm, extensions 10 mm
Dipole Diameter: 12 mm, extensions 10 mm
Longest Element: 2.1 meter

Balun and Connector: Included

Common Mechanical Specifications for Dual Band 6m 4m Antenna 13 elements 5070dx11-2Conn

Overall number of elements: 11
Element Mounting Position: Below the boom
Boom Length: 5.4 meter
Boom Size: Tapered Boom 20×20, 30×30, 40x40mm
Turning Radius: 3.5m
Number of Boom Pieces: 4
Guy rope support: Yes, Included
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Clamp: 2x M8 Stainless Steel
Survival Wind Speed: 160 km/h
Net Weight: 8.7 kg
Gross Weight: 10.3 kg
Transportation Length: 1.5 meter

6m 4m DualBand Yagi Antenna 5070dx11-2Conn Two Dipoles View

Measured SWR with calibrated HP8753ES at antenna connector.

6m 4m Dual Band Yagi Antenna 6m4m11DX-2C Measured Achieved 6m SWR

6m 4m DualBand Yagi Antenna 5070dx11-2Conn Measured Achieved 6m SWR

6m 4m Dual Band Yagi Antenna 6m4m11DX-2C Measured Achieved 4m SWR

6m 4m DualBand Yagi Antenna 5070dx11-2Conn Measured Achieved 4m SWR

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