DualBand 70cm 23cm Antenna Two Connectors 70cm23cm11W Wideband

World’s first ever produced 432MHz and 1296MHz DualBand 70cm 23cm Antenna Two Connectors 70cm23cm11W. Wideband design covers 430-440MHz and 1240-1310MHz. Light construction has the possibility of changing polarization in a second. Solid gain for antenna boom of just 0.49m

 

DualBand 70cm 23cm Antenna Two Connectors 70cm23cm11W Wideband

 

What does 70cm23cm11W mean?

• 70cm – Covers the complete 70cm band
• 23cm – Covers complete 23cm band
• 11 – Overall number of elements. 4 elements on 70cm and 7 elements on 23cm
• W – Wideband characteristics on both bands

 

Electrical specifications of 70cm23cm11W on 70cm band

Frequency Range: 430 – 440 MHz
Free Space Forward Gain: 8.1 dBi
Front-to-Back Ratio: 22 dB
-3 dB Horizontal Beamwidth: 62.9°
Polarization: Horizontal or Vertical
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 850 W
Matching Method: Direct feed through common mode balun
Connector: “N”
Coupling to 23cm: -32 dB

 

DualBand 70cm 23cm Antenna Two Connectors 70cm23cm11W 70cm Azimuth Radiation Pattern

 

 

Mechanical specifications of 70cm23cm11W on 70cm band

Number of Elements: 4
Element Diameter: 4 mm Aluminum rod
Dipole Diameter: 8 mm Hard Copper tube plastic coated
Longest Element: 340 mm
Element Mounting Position: Below the Boom
Balun and Connector: Included

 

Electrical specifications of 70cm23cm11W on 23cm band

Frequency Range: 1240 – 1310 MHz
Free Space Forward Gain: 11.4 dBi
Front-to-Back Ratio: 30 dB
-3 dB Horizontal Beamwidth: 45.8°
Polarization: Horizontal or Vertical
Nominal Input Impedance: 50 Ohms
Maximum Power Input: 100 W
Matching Method: Voltage balun. Used RG316 Teflon Cable
Connector: “N”
Coupling to 2m: -23 dB

 

DualBand 70cm 23cm Antenna Two Connectors 70cm23cm11W 23cm Azimuth Radiation Pattern

 

Mechanical specifications of 70cm23cm11W on 23cm band

Number of Elements: 7
Element Diameter: 4 mm Aluminum rod
Dipole Diameter: 3 mm Copper
Longest Element: 120 mm
Element Mounting Position: Above the Boom
Balun and Connector: Included

 

Common Mechanical Specifications of 70cm23cm11W wideband antenna

Boom Length: 0.49 m
Boom Size: 20x20mm
Number of Boom Pieces: 1
Mounting Mast Diameter: 30 – 50 mm 1-1/4 – 2″ OD
Survival Wind Speed: 160 km/h
Transportation Length: 0.49 m
Net Weight: 0.4 kg
Gross Weight: 1.2 kg

 

DualBand 70cm 23cm Antenna Two Connectors 70cm23cm11W measured SWR on 70cm band

 

DualBand 70cm 23cm Antenna Two Connectors 70cm23cm11W measured SWR on 23cm band

The old name of the antenna was 70cm23WB11

 

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.

 

Check all 70cm antennas
Check all 23cm antennas