2m 70cm DualBand High Power Antenna 2m70cm21WP 21 Elements

Excellent gain 7+14 elements 2m 70cm DualBand High Power Antenna 2m70cm21WP with a single connector on the 3m boom. Wideband design covers 144-146MHz and 430-440MHz. The antenna is engineered to provide exceptional frequency range and power across the 2m and 70cm. The antenna features a sturdy and durable construction that can withstand any harsh weather conditions. Single connector design simplifies the installation process, while its dual-band capabilities allow for seamless communication across a broad range of frequencies.

 

2m 70cm DualBand High Power Antenna 2m70cm21WP Appearance

 

What does 2m70cm21WP mean?

• 2m – Covers 144-146MHz frequency range
• 70cm – Covers 430-440MHz frequency range
• 21 – 21 elements. 7 elements on 2m and 14+1 element on 70cm
• W – WideBand version to 146 and 440MHz
• P – High Power version of the antenna. 1000W on 2m and 750W on 70cm

 

2m70cm21WP could be produced in two versions:

• SKU:1290 2m70cm21WP with horizontal polarization (this antenna)
• SKU:1295 2m70cm21WPV with vertical polarization

 

2m Electrical Specifications of 2m 70cm DualBand High Power Antenna 2m70cm21WP

Frequency Range: 144-146 MHz
Free Space Forward Gain: 12.8dBi
Front-to-Back Ratio: 29dB
-3 dB Horizontal Beamwidth: 40°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: <1.2
Maximum Power Input: 1000W
Matching Method: Voltage Balun
Connector: “N” (Common connector for both bands)

 

2m 70cm DualBand High Power Antenna 2m70cm21WP 2m Azimuth Radiation Pattern

 

70cm Electrical Specifications of 2m 70cm DualBand High Power Antenna 2m70cm21WP

Frequency Range: 430 – 440MHz
Free Space Forward Gain: 15.4dBi
Front-to-Back Ratio: 26dB
-3 dB Horizontal Beamwidth: 22°
Polarization: Horizontal or Vertical
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: <1.2
Maximum Power Input: 750W
Matching Method: Voltage Balun
Connector: “N” (Common connector for both bands)

 

2m 70cm DualBand High Power Antenna 2m70cm21WP 70cm Azimuth Radiation Pattern

 

2m and 70cm mechanical specifications of 2m70cm21WP

2m Number of Elements: 7
70cm Number of Elements: 14+1
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 or 3
Turning Radius: 1.8 meter
Guy Rope Support: Not necessary. Strong boom
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Clamp: M8 Stainless Steel
Survival Wind Speed: 150 km/h
Net Weight: 3.1 kg
Gross Weight: 4.4 kg
Transportation Length: 1.5m

 

DualBand 2m 70cm High Power Antenna 2m70cm21WP Appearance

 

2m 70cm-DualBand-High-Power-Antenna-2m70cm21WPV Vertical Polarization

(must be put on fiberglass pipe)

 

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 perfect SWR on the intended frequency range. Everything is pre-tuned.
• Easy to set up. Everything is labeled, just put number to 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 antennas and are mechanically constructed much better than any antennas from other manufacturers.

The old name of the antenna was PA144-432-21-3BP

 

Short video about 2m70cm21WP (PA144-432-21-3B)

All 2 meter / 70 cm antennas: 2m/70cm antennas
2m / 70cm Common Connector antenna
2m / 70cm Two Connector Dual Band