Dual Band 2m 70cm Rear Mount Antenna with Common Connector 2m70WB19R

Ultra-wide Ham Radio dual band antenna designed for 2 meters and 70 cm band. Dual Band 2m 70cm Rear Mount Antenna 2m70WB19R covers 144-146 MHz and 432-440 MHz which makes it perfect for MS, Troppo, and Repeater work because of the smart engineering of the bracket. The antenna can be placed Horizontal or Vertical since the bracket allows for an easy swap in polarization.

What does 2m70WB19R mean?

2m70 – 2 meter and 70 cm band
WB – Wide-Band antenna 144 – 146 MHz and 432 – 440 MHz
19 – elements total. 7 Elements on 2-meter band and 12 + 1 elements on 70 cm band.
R – Rear Mount antenna. Has guy-rope support.

The rear mount antenna allows easy mounting on the side of towers as a stacking antenna, and on a balcony. Its low-noise design makes it perfect for big cities and its relatively small size allows you to put it without any special city permission. The 2meter and 70cm rear mount antenna has a high power input. 1000W on 2 meters and 750W on 70 cm band.

Solid as a rock. Boom 30 mm x 30 mm with rear mount guiding.

 

1000 W on 2 meters and 750 W on 70 cm Dual Band Antenna 2m70WB19R 144MHz Azimuth Radiation Pattern

 

High Power Dual Band Antenna 2m70WB19R 432 MHz Azimuth Radiation Pattern

 

144MHz and 432 MHz Dual-Band Antenna 2m70WB19R bracket and connector view. Easy connection with a balcony or on big towers as a stacked antenna.

Electrical and Mechanical specifications of Dual-Band Common connector Rear Mount antenna 2m70WB19R

2-meter electrical specifications of 2m70WB19R antenna:

Frequency Range: 144 – 146 MHz
Free Space Forward Gain: 12.2 dBi
Front-to-Back Ratio: 27 dB
3 dB Horizontal Beam-width: 43.6°
Polarization: Horizontal or Vertical
Nominal Input Impedance: 50 Ohm
SWR Across Entire Band: < 1.2
Maximum Power Input: 1000 W
Matching Method: Voltage Balun
Connector: “N”

70cm electrical specifications of 2m70WB19R antenna:

Frequency Range: 432 – 440MHz
Free Space Forward Gain: 15.1 dBi
Front-to-Back Ratio: 26 dB
3 dB Horizontal Beam-width: 25.5°
Polarization: Horizontal or Vertical
Nominal Input Impedance: 50 Ohm
SWR Across Entire Band: < 1.2
Maximum Power Input: 750 W
Matching Method: Voltage Balun
Connector: “N”

 

2m and 70cm mechanical specifications of 2m70WB19R antenna:

Number of Elements: 19
2m Elements Diameter: 8 mm aluminum pipe
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: 2.92 m
Boom Size: 30 x 30 mm
Number of Boom Pieces: 2
Turning Radius: 3 meter
Guy Rope Support: Yes
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Clamp: M8 Stainless Steel
Survival Wind Speed: 150 km/h
Wind Load:
Net Weight: 4.2 kg
Gross Weight: 5 kg
Transportation Length: 1.5 m (by order 1.2m)

 

More information about dual band antenna 2n70WB19R

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, connectors… 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.

19 elements on a 2meter/70cm band are on the antenna boom of just 2.92 meters long. Since this Ham Radio 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.