Extra Wideband 2m 70cm Dual-Band Antenna 144-148MHz and 430-450MHz 2m70Wide18

Region 2 and Region 3 extra wideband dual-band antenna designed for 2m 144-148 MHz and 70cm 430-450MHz. Horizontal or vertical polarization. The perfect antenna for tropo dx-ing or FM repeater work.

What does 2m70Wide18 mean?

2m70 – 2 meter and 70 cm band
Wide – Extra Wide-Band antenna 144 – 148MHz and 430 – 450MHz.
18 – elements total. 6 Elements on a 2m band and 12 + 1el on a 70cm band.

Extra Wideband 2m 70cm Dual-Band Antenna 2m70Wide18 for horizontal polarization could be mounted on any metal mast. For vertical polarization, fiberglass pipe must be used or a metal horizontal arm at least 1m long. The 2-meter and 70cm Extra Wideband Dual-Band Antenna 2m70Wide18 is designed for 100W on 2m and 50W on 70cm band.

 

 

Electrical and Mechanical specifications of Extra Wideband 2m 70cm Dual-Band Antenna 2m70Wide18

2-meter electrical specifications:

Frequency Range: 144 – 148 MHz
Free Space Forward Gain: 11.1 dBi
Front-to-Back Ratio: 27 dB
3 dB Horizontal Beam-width: 48.6°
Polarization: Horizontal or Vertical
Nominal Input Impedance: 50 Ohm
SWR Across Entire Band: < 1.2
Maximum Power Input: 100 W
Matching Method: Current Balun
Connector: “N”

 

Extra Wideband 2m 70cm Dual-Band Antenna 2m70Wide18 2m Azimuth Radiation Pattern

 

 

70cm electrical specifications of 2m70Wide18 antenna:

Frequency Range: 430 – 450MHz
Free Space Forward Gain: 13.5 dBi
Front-to-Back Ratio: 25 dB
3 dB Horizontal Beam-width: 27.3°
Polarization: Horizontal or Vertical
Nominal Input Impedance: 50 Ohm
SWR Across Entire Band: < 1.2
Maximum Power Input: 50 W
Matching Method: Curren Balun
Connector: “N”

 

Extra Wideband 2m 70cm Dual-Band Antenna 2m70Wide18 70cm Azimuth Radiation Pattern

 

 

2m and 70cm mechanical specifications of 2m70Wide18 antenna:

Number of Elements: 18
2m Elements Diameter: 4 mm rod
70cm Elements Diameter: 4 mm rod
Dipole Diameter: 8 mm Hard Copper tube plastic coated
Longest Element: 1030 mm
Element Mounting Position: Below the Boom
Balun and Connector: Included
Boom Length: 1.96 m
Boom Size: 20 x 20 mm
Number of Boom Pieces: 2
Turning Radius: 1.3 meter
Guy Rope Support: No
Mounting Mast Diameter: 30 – 50 mm 1-1/4 – 2″ OD
Clamp: M6 Stainless Steel
Survival Wind Speed: 150 km/h
Net Weight: 1.9 kg
Gross Weight: 3 kg
Transportation Length: 1.18 m

 

 

More information about dual band antenna 2m70Wide18

The antenna is pre-tuned, so no need to move, cut or use a rasp file for any element to get perfect SWR on the intended frequency range. As all our antennas are, this Ham Radio antenna has been designed with professional full-3D EM modeling software. The antenna is calculated with the influence of boom, balun, connector… Once the antenna is up in the air, you should expect solid SWR across the whole designed range, true gain, and F/B as given in the table.

The antenna is very easy to set up. Everything is labeled, just put number to number. The antenna can be assembled with hand tools, as well as with power tools.

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

 

All our 2 meter / 70 cm antennas are divided into 2 categories. Common Connector dual band antenna and Two Connector dual band antenna.